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Carl Fausett
Tire Chirper
33 Posts |
 Posted - 04/09/2007 : 20:24:49
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About a year ago, we started looking into manufacturing a replacement impeller for our customers as demand was high and they are completely unattainable from the manufacturer.
Our process took us through computer-aided-design, manufacturing modeling, materials testing, over-spin testing and finally fitment testing and trials - and now I am happy to say we have a product in manufacture now.
Our new impeller for the Powerdyne fits within the housing you have without modification, yet, due to advances in materials and manufacturing methods, we were able to make it more agressive so it moves more air than the original impeller does at the same speeds.
And where the Powerdyne impeller was designed and balanced to spin at 40,000 rpm, our impeller was designed and is balanced to spin at 60,000 rpm.
Pictures of it, and more information is here:
http://www.928m.com/parts/powerdyneimpeller.php
I am about 3 or 4 weeks away from having product to ship, and delighted that we will sone be able to offer these wonderful replacements to the public. |
Edited by - Carl Fausett on 04/17/2007 18:47:34
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liamrh
Still Cruizin'
1 Posts |
Posted - 04/28/2007 : 10:15:43
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| That is awesome!! However, for $650 forget it. |
Edited by - liamrh on 04/28/2007 10:16:02 |
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Carl Fausett
Tire Chirper
33 Posts |
Posted - 05/30/2007 : 12:27:39
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They are in stock now and selling at $595 each.
A cast impeller like the OEM one is cheap to make. When you could get them, Powerdyne would sell them for about $180. But... you cannot get them, and they are balanced to only spin about 40,000 rpm.
Ours is milled and takes over an hour of machine-time per impeller. Machine time on 4 and 5-axis CNC mills is $$$$. Then we ship them to be spin balanced to 60,000 rpm so your bearings will have a smooth life.
And this impeller moves more air by 20% then stock... like going down 3 sizes in your current pulley, but without the bearing failure and belt slippage! |
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Centrifugal
Tire Chirper
Australia
44 Posts |
Posted - 06/19/2007 : 17:45:54
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Purchased one of these new Billett Impellers from 928 Motorsports for installation in a 331 CI Ford WINDSOR V8 here in Australia
First run on dyno with just the new billett impeller added in made 60HP MORE (yes that is correct) than before and significant power increase in midrange and importantly the low low end.
Stunningly good performance and very happy, need to test against some other brands of charger now but suspect it may be well ahead all them all, very impressive.
Hope you still got some left Carl, we are needing more right away
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chucks bp
Tire Smoker
64 Posts |
Posted - 07/02/2007 : 16:44:08
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Just installed one of Carl's 928 Motor sports impellers in my 2001 ford F150 super crew with a Powerdyne BD111a 2.5 pulley Vortech air/water after-cooler 42# injectors 90mm mass air tuned by Mike Troyer. The set up was making 9.5# boost at 5300 rpm (using an Auto-Meter electric boost gauge) with the new impeller It is now making 12.5# and the mid range boost is great I am making 5# of boost a 3000RPM where most of my driving actually occurs. With a little data logging and tune change the truck will be awesome!! I am very impressed with the product. Carl's product and service is second to none. I believe that Carl has resurrected the Powerdyne with this impeller.
Also I might add that he reduced the price to $495 which when you see the craftsmenship of the impeller you have to agree that it is worth every penny. |
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Centrifugal
Tire Chirper
Australia
44 Posts |
Posted - 07/10/2007 : 14:57:29
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Also quartermile tested now and showing .2 of a second improvement on a 11.9 second car, now down the 11.7 for first time EVER.
To all needing their powerdyne give huge power this impeller is the item to get.
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Centrifugal
Tire Chirper
Australia
44 Posts |
Posted - 09/06/2007 : 14:57:15
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Further information
Installing the billet impeller into a Powerdyne BD11A on an LS1 5.7 caused boost to go from measly 6psi to a far more exciting 10psi with NO pulley change.
Awesome pressure increase for no speed increase  This is the best impeller technology in over 100 years |
Edited by - Centrifugal on 09/06/2007 14:58:28 |
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tequilaboy
In The Fastlane
8 Posts |
Posted - 04/21/2008 : 11:10:35
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I installed Carl's new impeller on Saturday and I've had a chance for a few test drives since then. 5.7 liter L98.
Here's a pic:
With no shims installed, the impeller was even with the surrounding case. The original impeller with 2 shims was sitting noticeably above the case.
With my car pullied for 36,000 impeller rpm at 6,000 rpm, the peak boost has risen by approximately 1 psi, from a baseline of 6 psi with the old impeller to 7 psi with the new impeller.
My peak MAF voltage has also increased from 4.59 volts to as high as 4.96 volts at 6,000-6300 rpm. With my current MAF calibration (which is still unverified) this voltage change is worth an approximate 80 gm/sec increase in flow. Roughly 20%.
Note: I'm using an 05+ Ford MAF in a 3" tube with a 6v->5v voltage divider circuit along with my own custom calibration. Voltage at the sensor itself would be approx. 5.95 volts, which is getting pretty close to the sensor's 6 volt output cap.
The old peak of 4.59 volts was now achieved as low as 5,200 rpm with the new impeller. With the old impeller, this voltage level was not achieved until 6,000-6300 rpm. It would appear that the boost/flow curve has been shifted downward by about 500-1,000 rpm making for a stronger mid-range and top-end. Equivalent flow is now occuring 500-1000 rpm sooner than before depending upon the rpm.
Good results so far.
Update: After swapping my aftermarket 5.75" crank pulley in favor of the stock 7" pulley (now pullied for 42,000 @ 5,800 rpm), I realized that the vacuum/boost gauge I was using was limited to only 7 psi with the needle hitting a stop. I'm now pegging the gauge at 7 psi in the vicinity of 5,000 rpm and above. The actual boost is likely higher. I won't know for sure until I use a better gauge. My Ford MAF is also pegged at 6 volts above 5100 rpm, so the flow has also increased as expected.
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Edited by - tequilaboy on 06/18/2008 18:06:02 |
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tequilaboy
In The Fastlane
8 Posts |
Posted - 08/27/2008 : 10:37:30
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Another update:
I'm now running with a 7" crank and 3.12" blower pulley combination. I've had a chance to check the boost again at the intake plenum, this time with a better 10 psi mechanical gauge.
Its now making 10 lbs. of boost at 6,000 rpm which is about 41,057 rpm at the impeller. Not bad.
The gauge needle is hitting the hard stop above 10 psi as my rev-limiter hits at about 6,200 rpm. Could be up to 11 psi or so at 42,000 impeller rpm.
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Centrifugal
Tire Chirper
Australia
44 Posts |
Posted - 02/23/2009 : 17:46:24
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Yes, these are excellent impellers, I must have fitted in excess 15 of these and with good results
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LV2FLY
Tire Chirper
Canada
21 Posts |
Posted - 05/05/2009 : 14:05:50
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These impellers are poor quality! They crack. I'll be happy to send you pictures and facts from brad.allore@yahoo.ca
The KBC bearing are not the correct application. They both fail in under 1,000km of day to day driving. Here the bearing facts, YOU BE THE JUDGE:
POWERDYNE BD11 IMPELLER SHAFT BEARINGS
Powerdyne Factory Installed (Factory New)
Manufacturer: SKF
P/N: 6202-2RSTNH/HC5C3WT (Highest quality)
6 = deep groove ball bearing
2 = width / height series
02 = bore size of 15mm
2RS(H) = two contact seals
TNH = Injection molded cage of glass fiber reinforced polyetheretherketone (PEEK), rolling element centered
HC5 = ceramic rolling elements
C3 = greater than normal clearance
WT = special grease fill for temperature range -40C to 160C
WT Grease fill for low as well as high temperatures (e.g. –40 to +160 °C). WT or a two-figure number following WT identifies the actual grease. An additional letter or letter/ figure combination as mentioned under “HT” identifies filling degrees other than standard.Examples: WT or WTF1
Replacement Bearing SKF from KAMAN AEROSPACE(Acceptable Replacement)
Manufacturer: SKF
P/N: 6202-2RSH/C3GJN
6 = deep groove ball bearing
2 = width / height series
02 = bore size of 15mm
2RS(H) = two contact seals
C3 = greater than normal clearance
GJN = grease type
GJN Grease with a polyurea thickener of consistency 2 to the NLGI Scale for a temperature range –30 to +150 °C (normal fill grade)
928 Motorssports HP Bearing (Non-Special Application)
Korea Bearing Company (KBC)(now owned by FAG)
P/N: 6202Z
6 = deep groove ball bearing
2 = width / height series
02 = bore size of 15mm
Z= single or double shield
The KBC 6202Z cross references to a SKF Explorer bearing 6202-2Z (the Z or 2Z means double metal shields)
Limiting RPM is 22,000 rpm for a quality SKF bearing only.
Limiting Temperature range see diagram 1. At an average engine compartment temperature of 210 degree F
a SKF 6202-2Z bearing has a max. rpm of about 5,000 rpm.
Check this site out:
http://forums.bimmerforums.com/forum/showthread.php?p=16253876#post16253876
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Carl Fausett
Tire Chirper
33 Posts |
Posted - 05/06/2009 : 09:16:46
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Live2Fly (Brad Aloire) is embarked on a spirited campaign to discredit us and our products because I will not replace his damaged impeller without inspecting it.
Recently, eBay suspended him for his actions. Please take his posts with a grain of salt.
Brad is upset because he dented his billet impeller somehow and he refuses to let us inspect it. Until we see it, we cannot determine the cause of the failure and replace it under warranty. Brad told us he would make life miserable for us unless I replace the impeller for free, and so far, he's been trying. I just do not respond well to extortion.
Our impellers are fully warranted to be free from defects in materials or workmanship. All Brad has to do to get a new impeller is send in the broken one. He wont do it, which tells us he knows its been hit or dropped.
Looking at the photo he is posting around, the impeller vane is bent in. Generally speaking, when an impeller vane stress cracks under load, they are bent backwards. When they are bent down as in this case, they have been hit or dropped.
I can say this: we are now in our 4th production run of these impellers and have sold hundreds of them over 2 years and have yet to have one fail as a result of materials, design, or workmanship.
We have many, many, happy installs with these impellers and some have been kind enough to send us dyno charts before-and-after because they are so happy with the results.
As to Brad's claims about the bearings, he is wrong again. Our bearings start their life as a KBC bearing with metal shields. Then they are remanufactured here in the USA to replace the factory lubricant with special synthetic high-temp grease, and the shields are replaced. They have no special markings on them, they will simply say "6202Z" on the race. But, they are not ordinary bearings.
Been rebuilding and upgrading supercharegers for 9 years now.
Have built a few more than Brad. These KBC bearings, built to our specifications, have been outlasting the SKF bearings we used to use.
Of, course, I cannot say how Brad installed his bearings that caused them to fail in 100 miles like he reports, nor can I say what belt and pulley and shift point he used, nor anything else about his competency. What I can say is that bearings can be damaged during the installation if not done properly and that will yield results such as these.
If any body has any questions or concerns, My name is Carl Fausett.
I am the owner of 928 Motorsports LLC and I can be reached days at 920-485-0928 and via email at carl@928motorsports.com
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LV2FLY
Tire Chirper
Canada
21 Posts |
Posted - 05/06/2009 : 11:28:47
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Hi every one. This is Brad Allore (not Alorie). Carl Fraud can't get anything write. LOL. Here's the facts and I'll be very happy to respond to any questions or request for proof you have. As matter of fact I encourage you to ask me at (brad.allore@yahoo.ca).
I have e-mails from the beginning where Carl refused to warrantee, investigate or review my parts. Here's some background please read the following and you make up your own mind. YOU BE THE JUDGE.
Presently I work as a quality assurance auditor for one of Canada's larges helicopter turbine overhaul facilities, before that I worked for Transport Canada/Aviation as an Airworthiness inspector. I over see the bearing inspection clean room and inspectors who are all qualified to NAVAIR standards (The US Navy standards for aircraft bearings). I hold current FAA certificates & an A&P license. I specialize in everything from ultra-light airplanes to 747's but, my interest is in bogus aircraft/helicopter parts, especially bearings.
If Mr. Fraud thinks I'm trying to get a free set of bearings or impeller. He needs medication. My goal is to provide as much information as possible, facts and only facts and let you make up your own mind in dealing with 928 Motorsports. Since I decided to sell the defective parts on e-Bay I have been contacted by several 928 customer that have had similar experiences in dealing with Mr. Carl & 928 Motorsports. I'm not alone.
We have a car club here at work made up of 7 guys who deal with turbine engines daily. 2 are professional engineers with 30 years experience each. It is fair to say they have seen a few bearings and impellers over the years. We made the rebuilding of my BD 11 a club project and they have been through every step with me. They can't believe some of the BS Carl has fed me and when they saw the KBC bearings supplied by 928 Motorsports they laughed and said they hoped I could get my money back. My mistake was proceeding with Carl's instructions and advice.
They were all impressed with the "design" of the 928 HP impeller. The 928 HP impeller looks like the first stage impeller in the GE CT700 turbo shaft engine used in the S92 helicopter. Until it cracked. They were also witness to the receiving inspection & installation. We used close tolerance techniques for the bearing installation specified by Rolls-Royce Gas Turbine engines. Tools and process the average guy does not have access to.
The CT700 engine is manufacture by us under license with GE. My point is to let you know I have many recourse at my disposal to prove my claims.
All I wanted from 928 was my $495.00 back for the impeller. Not the bogus bearing, belt or hours I spent trying to sort this out, shipping or taxes.
Because of Carl's track record. I told him that I would box up all the parts, everything and return them to him once I had my refund for the impeller. I though that was fair, considering his ........ I was even going to include all the reports, photographs, documents etc. which would of cost him big money to help him sort out defects and design flaws. I would learn my lesson and go away. I guess we are beyond that now.
From: bradallore@sympatico.ca
To: info@928motorsports.com
Subject: Counterfeit Supercharger Bearing failure
Date: Wed, 6 May 2009 10:18:24 -0700
.ExternalClass .EC_hmmessage P{padding:0px;}.ExternalClass body.EC_hmmessage{font-size:10pt;font-family:Verdana;}Gidday Buddy,
Good to hear from you. I bet you have brown eyes Carl.
Cause your full of shit! LOL
Where do you have the bearings remanufactured to ABEC 5 standards? You are either stupid or one hell of a liar. So stop trying to deflect the facts from the issues.
Annular Bearing Engineers Committee (ABEC) Standards (you quote) ABEC 5 are tolerances for the "fitting" of the bearing only. Now pay attention Carl because there will be a short exam after class today.
That would apply to tolerances for positioning the bearing in regards to Outside Diameter (OD) / Outer Ring Size Tolerance or Bore Diameter (ID) / Inner Ring Tolerance. It has nothing to do with ball to race clearances ("C"), shields ("Z"), loads, running rpm or maximum rpm and temperature. Taking a standard 6202Z bearing and (as you say) "remanufacturing" it to ABEC 5 does not make any sense. One would have to surface coat or plasma spray (That means build up the surface, Carl) than machine the OD & ID to meet the limits of which ever ABEC standard is desired. There are very few facilities in the world that "remanufacture" bearings. KBC is not one of them. Why does 928 Motorsport go to all that trouble and expense to "remanufacture' a $2.45 bearing when you can buy a direct Powerdyne SKF replacement from any bearing supplier for $17.55 (Canadian)? Do you have a deflecting comment for that buddy Carl?
There is absolutly nothing wrong with KBC 6202Z bearing used in applications within the environment applicable to a standard 6202Z bearing. You are right there Carl. No argument. However, high speed rotating shafts in supercharge (mechanically driven compressors) is not one such application. Especially when some one (that would be you, Carl) suggest installing "off center shims" because "928 Motorsports does it all the time"
Can you substantiate your claims by way of documentary evidence that your 928 Motorsports HP 6202Z bearing is equivalent or exceeds the SKF 6202-2RSTNH/HC5C3WT as supplied originaly by Powerdyne? Can you substantiate you claims by way of documentary evidence that your 928 Motorsports "special high temp lube" meets or exceeds "WT" specifications or "GJN" specifications? Can you substantiate your claims by way of documentary evidence that your 928 Motorsports HP impeller is certified to 72,000 rpm. I didn't think so.
There is no extortion, no refusal to co-operate, no bad mouthing. Just questions. Just facts. You have not once provided any proof of your claims. You imply on the internet that you have developed hi temp. grease with SKF engineers............lets have some names I might even know them.
An honest person would simply say something like......"928 Motorsports packs the impeller shaft bearings in special high temp lube that meets MIL-SPEC-???? and has a operating temp. of -40C to +104C within the 36k to 45k rpm range."
Was that so hard?
I'm not sending you "Jack Robinson" until I get a full refund for one simple reason. My impeller, bearings and professional engineering reports are going to end up as evidence. Why would I turn over the murder weapon to the accused killer before trial? If your not on medication I suggest you see a Doctor and get some.
Attached is a picture of a bearing from a fellow of your calibre (but, a bit smarter) He took a "off the shelf" FAFNIR bearing and etched a General Electric Gas Turbine engine accessory bearing part number on it. Funny thing is. The only company to manufacture bearing under license for GE is Timkin. GE does not vibro etch anything on bearings. Just another example of turning a $2.45 bearing into a $200.00 bearing.
Have a nice day.
From: Info@928Motorsports.com
To: bradallore@sympatico.ca
Subject: RE: 928 Motorsports
Date: Wed, 6 May 2009 10:49:58 -0500
.ExternalClass .EC_hmmessage P{padding:0px;}.ExternalClass body.EC_hmmessage{font-size:10pt;font-family:Verdana;}
Your "offer" is merely extortion.
Brad says "replace my impeller for free on my word alone or I will defame you to everyone"
Your word is not valued around here, either. Simply you saying the impeller is bad does not make it bad.
Facts are facts, and the fact is you continue to prevent us from a reasonable inspection of our impeller.
I have explained the bearings to you in earlier emails. They are remanufactured here in the USA after they arrive, and they are first-quality ABEC 5 bearings with special synthetic high temp lube in them after they are done. But - they are not re-stamped or re-marked afterwards. They will simply bear the markings 6262Z
There is nothing wrong with KBC bearings as a brand. They have all the quality of all the other major brands, and the KBC bearings have been out-lasting the SKF bearings we used to use.
From: Brad Allore [mailto:bradallore@sympatico.ca]
Sent: Tuesday, May 05, 2009 11:29 AM
To: info@928motorsports.com
Subject: 928 Motorsports
Carl,
Facts are facts unless you can prove otherwise. I asked you several times about the KBC bearings supplied by 928 Motorsports. You have not answered any of my questions because you do not tell the truth and do not have the facts to back up your claims.
You and I have two issues. Bearings & Impeller. Because you have, are, and continue to lie to me (and others) about the bearings I have no trust in you doing the correct thing regarding the bearings or HP impeller. I'm not sending you anything as I feel you are the kind of person who would lie again or damage my evidence to suit you personal needs. I just do not rust you because of your record.
I feel you look for any excuse not to fess up and admit you are wrong or at least willing to have an open professional mind. How may professional Engineers do you have at 928 Motorsports? What is the specification of the 500F degree grease you have installed in the KBC bearings? What standards were used to test the 928 HP impellers to 72,000 rpm? Who certified it? Facts Carl, facts!
I'm not going to knock it off. I'm not going away. I'm willing to meet you in a court of law and let a Judge make a decision. No problem. Bring it on Bud! I deal with people like you every day. I work with USA & Canadian authorities daily to put an end to counterfeits, fraud and fakes.
I have all the evidence here to prove your advertising meets the intent of fraud, your so called products are not as advertised and you Sir are a bold faces lier. Those are facts. Not slander. Knock your self out. It's going to cost you more in lost sales & legal fees to loose in court. Even if you won anything I have nothing. It would be like getting blood out of a rock in another country. Good luck Carl.
You sold me low quality & application made in Korea KBC (Korean Bearing Company) P/N: 6202Z bearings. That's a fact Carl and that is why the 928 Motorsports so called HP bearing failed. That's a fact.
You also had the gull to send me shims to install on a high speed rotating impeller shaft that had a gross/over sized ID and their was no way to correctly (by any standard) center on the impeller shaft. Your advise was, "we use these all the time with no problem". or "we can not source the proper shims". Any judge has the basic knowledge to know that the slightest off center of mass on a shaft rotating between 36,000 rpm and your claimed (sorry certified 72,000 rpm) is going to induce vibration. Which will accelerate bearing failure or fatigue cracks. Leading to compressor failuer, explosion, producing foreign object damage (FOD) to the engine. A shard of impeller rotating in an excess of 36,000 rpm could injure or kill some one.
I'm not bad mouthing you or 928 Motorsports. These are the facts. I'm selling the failed 928 Motorsport HP bearings and impeller on the internet to try and recover some of the money I lost by dealing with you and 928 Motorsports. That simple.
Carl. I'm a reasonable person. I just want the truth. I just want what I paid for. I have never had a problem of paying top dollar for products/services as advertised. I even offered to send my BD11 to you to have it professionally O/H. I'm glad I did not. I bought your products at your suggestions to improve the performance of my Powerdyne BD 11. I never once complained about the price or asked for any discount because I felt the price was fair considering your claims. I was mistaken on all counts.
Your threats don't scare me one bit. I will get satisfaction knowing that either way it's going to be detrimental to you and 928 Motorsports for not providing goods as advertised. Not backing up your claims. Not providing fair customer service.
Yes the impeller are expensive and that is why I will continue to push the issues. I suggest you re-consider my offer. I think if you weigh the economic factors with an open mind you will agree.
"6202Z Bearing for use in applications, 6202Z Bearing are made of Chrome Steel and can rotate up to 15,800 rpm with no problem, each 6202Z bearing has 2 Metal shields to protect the bearing from dust or any possible contamination, also bearings 6202Z are pre-lubricated with grease, 6202Z Bearings are packed in the original manufacturer bag." $2.45 USA each.
Regards,
From: Info@928Motorsports.com
To: bradallore@sympatico.ca
Subject: RE: Happy Carl Customers
Date: Mon, 4 May 2009 08:45:34 -0500
.ExternalClass .EC_hmmessage P{padding:0px;}.ExternalClass body.EC_hmmessage{font-size:10pt;font-family:Verdana;}
This from a customer today:
"well the reason im writting now is that some guy selling a broke 928 impeller on ebay want me to help him bad mouth u and your company. well i told him i wouldnt lie but the truth is u did install cheap impeller bearings on my unit."
If you think you are safe in Canada from a liable suit, you are not.
Nock it off. Send your impeller in to be serviced or shut up. This is your choice.
But you MAY NOT continue slander and liable us publicly without repercussions.
Carl
From: Brad Allore [mailto:bradallore@sympatico.ca]
Sent: Sunday, May 03, 2009 12:41 PM
To: info@928motorsports.com; gretchen@928motorsports.com; Bin (house); Doug Strangway; sgfriesen@shaw.ca; copter@shaw.ca; zedzag@hotmail.com; niru88ca@yahoo.ca; tony.balint@vectoraerospace.com
Cc: Fred Mulligan; Mike Maclean; Mike Allore (hotmail)
Subject: Happy Carl Customers
Well Buddy,
Looks like I'm not the only person you screwed. Lots of response from other unhappy 928 Motorsports customers of yours as well. Here's where we go next:
https://postalinspectors.uspis.gov/forms/MailFraudComplaint.aspx
https://www.ftccomplaintassistant.gov/
https://tips.fbi.gov/
I'm going to encourage every contact I have to report you and 928 Motorsports for fraud & misleading advertisement. You should be ashamed of what you are doing.
928 Customer 16 Quote:
dude im feeling u... i paid 1200.00 for 928 to put the super racing rebuild in my powerdyne. it made it 25 miles down the road and the impeller shaft bearing locked up and it broke the belt. well the ad said the kit included abec 9 ceramic bearings. well i opened it up and it had the same bearing yours does i called carquest they said the bearings cost 8 bucks each. 928 cliamed they were not stock production. well theyve rebuilt my unit 4 times and never got it right... carl can eat shit and die as far as im concerned..lol
928 Customer 17 Quote:
Dam dude that sucks. I just had 928 do a super powerdyne rebuild for me 2 months ago. it cost me 1,400 plus shipping. so what was the problem do you think it was a bad design or some thing i wish i had seen this before. did you get any extra cfm like they clame?
928 Customer 18 Quote:
THANK YOU FOR THE INFO! I was looking at this upgrade before I saw this.
My offer now is a complete refund for all my purchases and then I will return the failed bearings and impeller to you. I'm not interested in any more 928 Motorsports products, advice or dealings with you.
Best regards,
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Carl Fausett
Tire Chirper
33 Posts |
Posted - 05/06/2009 : 12:37:42
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Let me appologise to the forum members for Mr. Allore.
His name-calling and whining tells you all you need to know about where his head is at.
We have been manufacturing supercharger parts and servicing superchargers for 9 years. We warrant our parts as we do our service.
If you have any concerns about what you have heard, please contact me directly. I will be happy to answer all questions.
Carl Fausett
928 Motorsports LLC
920-485-0928
carl@928motorsports.com
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LV2FLY
Tire Chirper
Canada
21 Posts |
Posted - 05/12/2009 : 11:33:19
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Thank you Mr. Carl. No need to applogize, just a need for you to back up your claims of greatness and stand behind your products.
You claim your 928 HP Impeller is certified to 72,000 rpm. Well if that is true why will you not let all of us know, Who certified it? To what standard was it certified and what certification process was used?
You claim to take a $2.45 KBC bearing and "re-certify" it to ABEC 5 standards....really? ABEC 5 only addresses OD and ID fitting limitations. It has nothing to do with any of your claims.
Here's another fact. SKF & Timikin bearings (world leaders in bearings) have never heard of your 500 degree F grease you put into 6202Z bearings from Korea. The engineers I have spoke to find it hard to understand why anyone would not simply buy the correct bearing for this application off the shelf for about $17.00. Maybe you can explain this so we all can be "enlightened".
I'm surprised you have been around for 9 years but, that's understandable. I have aircraft engineers with 20 plus years of experance who still do not know how to look up or apply a standard. What I hear is,,,,"We have been doing it this way for years". I guess that would explain the failure rate. I would think that after 9 or 2o years they could get it right.
So lets give everyone the facts and let them be the judge.
<a href="http://www.picturetrail.com/gallery/view?p=10&imgid=364110483" target="_blank"><img src="http://pic80.picturetrail.com/VOL1932/12019354/22021859/t-364110483.jpg" border="0" alt="Free Image Hosting at www.picturetrail.com" /></a> |
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LV2FLY
Tire Chirper
Canada
21 Posts |
Posted - 05/19/2009 : 15:03:44
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Hi guys and thank you for being objective. I had a long conversation with Todd at www.superchargerrebuild.com this morning. Seems I'm not alone in my experience with 928 Motorsports and perception of Carl. I really cannot stress the importance of having two issues with 928 Motorsports and no trust in anything Carl has to say or the claims they make on the internet. The issues are bearings & impeller failure. Carl has dodged every technical question I have asked. Todd on the other hand has answered all my questions. I think if you take a moment to examine Carl's tall claims. Logic will prevail.
First off, the market for these BD 11 impeller shaft bearings is so small. Who could be possibly interested in the cost to learn Carl's so called special grease which is a mute point anyway. RPM, loads & "C" clearance and materials are very important. I can assure you the bearings I received from 928 Motorsports were off the shelf made in Korea KBC bearing. Several others I have been contacted by have had BD11 superchargers fail within a few hundred miles after a $1,200 plus 928 Motorsports re-build by Carl. I also talked with Powerdyne directly about the SKF bearing they supply. Just look at the part numbers. That tells you something.
Powerdyne Factory Installed (Factory New)
Manufacturer: SKF
P/N: 6202-2RSTNH/HC5C3WT (Highest quality)
6 = deep groove ball bearing
2 = width / height series
02 = bore size of 15mm
2RS(H) = two contact seals
TNH = Injection molded cage of glass fiber reinforced polyetheretherketone (PEEK), rolling element centered
HC5 = ceramic rolling elements
C3 = greater than normal clearance
WT = special grease fill for temperature range -40C to 160C
WT Grease fill for low as well as high temperatures (e.g. –40 to +160 °C). WT or a two-figure number following WT identifies the actual grease. An additional letter or letter/ figure combination as mentioned under “HT” identifies filling degrees other than standard.Examples: WT or WTF1
Replacement Bearing SKF from KAMAN AEROSPACE (Acceptable Replacement)
Manufacturer: SKF
P/N: 6202-2RSH/C3GJN
6 = deep groove ball bearing
2 = width / height series
02 = bore size of 15mm
2RS(H) = two contact seals
C3 = greater than normal clearance
GJN = grease type
GJN Grease with a polyurea thickener of consistency 2 to the NLGI Scale for a temperature range –30 to +150 °C (normal fill grade)
928 Motorssports HP Bearing (Non-Special Application)
Korea Bearing Company (KBC)(now owned by FAG)
P/N: 6202Z
6 = deep groove ball bearing
2 = width / height series
02 = bore size of 15mm
Z= single or double shield
The KBC 6202Z cross references to a SKF Explorer bearing 6202-2Z (the Z or 2Z means
double metal shields)
Limiting RPM is 22,000 rpm for a quality SKF bearing only.
Limiting Temperature range see diagram 1. At an average engine compartment
temperature of 210 degree F
a SKF 6202-2Z bearing has a max. rpm of about 5,000 rpm.
You are right. I do not trust Carl. His first reaction was just as you say. You did something wrong and there was and impact. No warrantee, conversation done. Also would you trust a guy who sent you impeller shims that had a large ID and could not be centered. No centered on a impeller shaft rotating over 40,000 rpm. I say no. Carl told me that he does it all the time. No I'm not a rocket expert but, wouldn't that induce an imbalance? We balance turbine engine compressors (impellers) and turbine wheels all day long. The average person has no idea of how little of an imbalance magnifies itself. Vibrations or imbalances are measure in IPS (that Inches Per Second Carl). Which transmits directly through the shaft to the bearings.
Carl's expertise was also demonstrated when he quoted me ABEC 5 as the standard his KBC bearings that are "re-worked". That's all very nice but, ABEC 5 has nothing to do with grease type, temp., clearance, ball time, or materials. It's simple the degree of allowable tolerance for the OD and ID of any given bearing. Every re-worked, e-manufactured or certified bearing from any industry is identified as such. Even something as simple a a vibro-etch. Not only that. Some guy in WI is not qualified or authorized to claim certification, to certification standards. That is a professional engineers authority only and the P eng. will have the data to back it up. Which brings me to another claim by Carl.
Why don't you guys ask the same question I have asked several times. If the 928 HP impellers has been certified to 72,000 rpm and will run all day long at 60,000 rpm. Who certified it and to what certification standards? Gas Turbine manufacturers are very specific. There are standards. So why not answer the question? Most all standards a public or available on the internet. No spy vs. spy info here.
Guys, I've had the pleasure of being trained by Barry Stanley, professional engineer US Navy retired. In the aviation world and Military Mr. Stanley is considered "the" expert in anti-friction bearings, bearing inspection and failure causes. My company is ISO certified to NAVAIR 01-A1-503 standards for anti-friction bearing inspection. I oversee the bearing inspection QA & Certification.
Here's another fact. Carl claims that he does not identify his bearings as "his bearings". I would think that anyone going to all the time and expense to do as he claims would identify the "as advertised HP bearings". That's allot of money spent and how does a person tell a standard 6202Z bearing from a 928 Motorsport 6202Z bearing? They would look the same wouldn't they? Maybe that's what happened in my case. 928 Motorsports does not have any quality control. If the bearings are the same in appearance then how do I know, or how does Carl know the correct bearings were shipped to me or others. If you bought new 928 HP bearings today, what assures you that you got what you paid for other than the word of a guy that does not know what ABEC standards are or the importance of properly centering shimming on impeller shafts?
My car club is made up of licensed aircraft engineers and technicians. They were there when I opened the box from Carl. They were impressed with the improved design of the HP impeller but, there were a few comments in regards to the machining or finish. When I opened the box with the bearings and they saw KBC, Made in Korea the laughter could be heard in NY.
Yes I'm PO'd but, not a Carl. I'm PO'd at me for being stupid enough to let Carl lie to me and that's what PO's me off. What's done is done and I'm happy to pass on my experiences and let you be the judge. Since I posted the impeller and bearings on e-Bay I have received many e-mail from people who have had similar experiences and worse experiences with 928 Motorsports and Carl. I do not want anything from Carl but, the truth and acceptable answers. I gave up hope of any claim when he said the crack was caused by an impact and there was going to be no warrantee.
I guess no one ever asked Carl the questions until I came along. The 5W's. Who, What, When, Where and Why.
You be the Judge.
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