 Stock CV Joint Angle of Degree Articulation, Is More Better for a Stock Axle? |
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| 914Sixer |
 Dec 9 2015, 06:47 AM
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#21
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914 Guru  Group: Members Posts: 9,034 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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Yep, that is why Eric Shea says he ONLY sells GKN/Lobro.
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| ChrisFoley |
Dec 9 2015, 08:17 AM
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#22
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I am Tangerine Racing Group: Members Posts: 7,968 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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I didn't have any CV failures until my supplier changed from unbranded to Empi 2 years ago. I changed to GKN/Lobro as soon as the data started coming in from a couple of track drivers.
Wndsrfr installed one of my older (pre-Empi I believe) axle assemblies right before Daytona last weekend and had no issues other than some grease slinging. Although I never expected my stock replacement axle assemblies to be used in high powered track cars. |
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| DBCooper |
Dec 9 2015, 09:10 AM
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#23
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
QUOTE(Mueller @ Dec 8 2015, 08:13 PM)  Wondering if this is false economy if not using good parts? Meaning could a GKN/Loebro Type I CV be just as strong as an EMPI* Bus CV? *EMPI comes up quite a bit when looking at CV joint failures. I think I can answer that. I have bus CV's on one end of the axle and at different times OEM 914/T1/Lobro replacements on the other. The bus ends don't break, I've only broken the OEM 914/T1/Lobro CV ends. The bus CV's are a lot stronger, and you can see why in the photos up above. |
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| Dave_Darling |
Dec 9 2015, 06:22 PM
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#24
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914 Idiot Group: Members Posts: 15,063 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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QUOTE(gryphon68 @ Dec 8 2015, 11:41 AM) Wow, looks like a Nadella joint that was disassembled, cut in half, and then put back together again. --DD |
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| Eric_Shea |
Dec 10 2015, 12:34 PM
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#25
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PMB Performance Group: Admin Posts: 19,289 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains  |
QUOTE(DBCooper @ Dec 9 2015, 08:10 AM) QUOTE(Mueller @ Dec 8 2015, 08:13 PM) Wondering if this is false economy if not using good parts? Meaning could a GKN/Loebro Type I CV be just as strong as an EMPI* Bus CV? *EMPI comes up quite a bit when looking at CV joint failures. I think I can answer that. I have bus CV's on one end of the axle and at different times OEM 914/T1/Lobro replacements on the other. The bus ends don't break, I've only broken the OEM 914/T1/Lobro CV ends. The bus CV's are a lot stronger, and you can see why in the photos up above. (IMG:style_emoticons/default/agree.gif) Bus CV's are very stout. I think we must be careful when comparing apple and oranges though. I "always" advise customers going with over 140-150hp to go with the larger CV's. GKN or not, the smaller Type1 CV's are not rated for higher HP applications. Porsche used them with the 914-6 but, that was the "only" six cylinder production car I know of that had such small CV's. It's an extremely common failure point for modified cars. It's also a common failure on stock cars that are now approaching 46 years of age. Here's my guide: Stock to 130HP - GKN/Loebro Higher HP (above 140-150) - I still like GKN/Loebro but we use 108mm 911 CV's with custom floating axles exclusively. |
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| Mike Bellis |
Dec 10 2015, 06:37 PM
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#26
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Resident Electrician Group: Members Posts: 8,346 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None
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Ultimate 108mm CV
http://www.rcvperformance.com/product-deta...spx?sku=SI-15RF Must use a sliding axle but comes with a "no questions asked lifetime warranty". I have these with 300M cages so I son't think they will ever break.  |
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| Mueller |
Dec 10 2015, 08:42 PM
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#27
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914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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QUOTE(Mike Bellis @ Dec 10 2015, 04:37 PM) Ultimate 108mm CV http://www.rcvperformance.com/product-deta...spx?sku=SI-15RF Must use a sliding axle but comes with a "no questions asked lifetime warranty". I have these with 300M cages so I son't think they will ever break. Mike, how much did the axles cost to go with those CV joints? |
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| Mike Bellis |
Dec 10 2015, 08:52 PM
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#28
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Resident Electrician Group: Members Posts: 8,346 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None
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QUOTE(Mueller @ Dec 10 2015, 07:42 PM) QUOTE(Mike Bellis @ Dec 10 2015, 04:37 PM) Ultimate 108mm CV http://www.rcvperformance.com/product-deta...spx?sku=SI-15RF Must use a sliding axle but comes with a "no questions asked lifetime warranty". I have these with 300M cages so I son't think they will ever break. Mike, how much did the axles cost to go with those CV joints? $110 each side (two different lengths) from Pacific Customs. http://www.pacificcustoms.com/porsche-930-...moly-axles.html |
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