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Hydra. |
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Member ![]() ![]() Group: Members Posts: 59 Joined: 23-July 05 From: www.hydraperformance.com Member No.: 4,457 Region Association: None ![]() |
I'm seriously contemplating going with a 3.6L 964 motor for my 914, but I'd like to keep the existing 901 transaxle. I understand that this doesn't leave much in the way of a safety factor, but what can be done to suitably strengthen the 901? Is it absolutely necessary to lock out 1st gear, or would something like an Albins 2.400 1st gear, along with a billet sideplate help out? I understand the alternative is to go with a 915-based setup, but if a 901 can be made to work satisfactorily then I would rather do that...
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Richard Casto |
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Blue Sky Motorsports, LLC ![]() ![]() ![]() Group: Members Posts: 1,465 Joined: 2-August 05 From: Durham, NC Member No.: 4,523 Region Association: South East States ![]() |
Regarding the "through bolting" mentioned earlier. I currently don't think that helps anything. I have had at least one transmission pass through me that was setup with through bolts and was supposedly done by a professional shop. It was a total hack job. I don't think the weak links in this transmission is solved by higher clamping force on the intermediate plate and I don't see loose studs as a common problem (they occasionally back out due to rusted on nuts however).
I am on the fence regarding billet intermediate plates. I see intermediate plates that have worn bearing bores from what I expect are stock engine situations. I can image that the billet plates would be less prone to that problem. When the supply of spare (used, but good) factory intermediate plates runs out, billet replacements will be the only option. There supply of core transmissions to harvest parts from will not last forever. As mentioned above, I think your driving style is going to have a much much larger impact on the longevity than any particular upgrades. And somethings (like the cantilevered first gear) just can't really be solved other than locking it out. Being able to put more power through "reliably" and given a wide range of potential driver abuse, you need a beefier transmission. Hence Porsche moving to the the 915 and eventually the G50. Richard |
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Lo-Fi Version | Time is now: 10th June 2024 - 06:39 PM |
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