You CAN turbo an n/a
05-22-2006 | 09:35 PM
#16
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Originally Posted by incessant
Not to split hairs here.. but the only thing "turbo" about that car is the engine. The 951 was all over a different car. Brakes, tranny, suspension, body. Important upgrades made for a reason! I think 951 owners would agree.
Have you ever seen the old turbo ad with the complete tear-down? It is certainly an all together different car (vs. 944 na).
That leaves me to wonder, how long will everything else last now that it is stressed?
Have you ever seen the old turbo ad with the complete tear-down? It is certainly an all together different car (vs. 944 na).
That leaves me to wonder, how long will everything else last now that it is stressed?
05-22-2006 | 10:55 PM
#17
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Originally Posted by incessant
Not to split hairs here.. but the only thing "turbo" about that car is the engine. The 951 was all over a different car. Brakes, tranny, suspension, body. Important upgrades made for a reason! I think 951 owners would agree.
Have you ever seen the old turbo ad with the complete tear-down? It is certainly an all together different car (vs. 944 na).
That leaves me to wonder, how long will everything else last now that it is stressed?
Have you ever seen the old turbo ad with the complete tear-down? It is certainly an all together different car (vs. 944 na).
That leaves me to wonder, how long will everything else last now that it is stressed?
05-23-2006 | 11:24 AM
#19
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Originally Posted by FRporscheman
If the tranny is an NA tranny, I'd be worried about that. Nothing else sets off flags in my head.
05-23-2006 | 11:45 AM
#20
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NA tranny is a known weak point -- people have grenaded it without the added stress of more power. In fact, a couple of Rennlisters have gone through multiple trannies (but they were AXers). My NA tranny ate itself within 5000 miles of an 968 engine swap -- I'd expect a similar experience with a 951 engine swap.
YMMV, of course.... I don't think the Callaway turbo conversions did anything with the tranny. There's are a couple Rennlister with experience on the Callaway turbos -- I hope they chime in.
YMMV, of course.... I don't think the Callaway turbo conversions did anything with the tranny. There's are a couple Rennlister with experience on the Callaway turbos -- I hope they chime in.
05-23-2006 | 12:23 PM
#22
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So, regarding the tranny, can somebody provide the documentation regard when Porsche strengthened the R&P. We were at a tech session the other week at Fred Baker and both the shop manager and the trans expert stated the R&P wasn't strengthened until the S2, not the 951. That says to me that the 951 tranny isn't necessarily that much stronger than the NA trans. IIRC one of the main differences with the 951 trans is the taller gearing.
EDIT I checked the FSM. The only major strength change to the turbo trans wasn't until the Turbo S in 1988 and all turbos from then on. Porsche shot-peened the 1st and 2nd gears to help strenghten them.
The ring and pinion wasn't uprated until the S2
EDIT I checked the FSM. The only major strength change to the turbo trans wasn't until the Turbo S in 1988 and all turbos from then on. Porsche shot-peened the 1st and 2nd gears to help strenghten them.
The ring and pinion wasn't uprated until the S2
Last edited by Manning; 05-24-2006 at 12:20 AM.
05-23-2006 | 01:19 PM
#23
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Brakes, transaxle, and the radiator - those would be the only weak points.
That picture is not very accurate since it reflects updates when compared to an EARLY 944 n/a. Aside from springrate, the suspension is identical.
If you were serious about converting your n/a to a '951,' the only cost effective way of going about this is to buy a wrecked 951 for 2-3k. Then again, this requires lots of spare time. In a nutshell, if you don't have time, just buy a 951.
That picture is not very accurate since it reflects updates when compared to an EARLY 944 n/a. Aside from springrate, the suspension is identical.
If you were serious about converting your n/a to a '951,' the only cost effective way of going about this is to buy a wrecked 951 for 2-3k. Then again, this requires lots of spare time. In a nutshell, if you don't have time, just buy a 951.