View Poll Results: Have you had problems with your N/A tranny?
Yes
16
32.00%
No
33
66.00%
I installed a 944 S2 tranny
1
2.00%
Voters: 50. You may not vote on this poll
have you had problems with your N/A tranny?
12-15-2009, 08:24 PM
#16
Nordschleife Master
I know 5th is shorter in the turbo boxes, but its still not as low as the NA's.
I've been wanting to swap out my trans for a turbo one, but I was worried it would be to high geared for the NA engine to pull at lower highway speeds.
12-15-2009, 09:47 PM
#17
Rainman
Rennlist Member
Rennlist Member
it works just fine, in 4th even at those speeds with some throttle it still picks up decently. of course if you want to pass someone you can go to 2nd and still have some windup room, 3rd goes to 105 or so.
it takes a fraction of a second longer of clutch slipping off a light but it really is nothing.
it takes a fraction of a second longer of clutch slipping off a light but it really is nothing.
12-16-2009, 03:57 AM
#18
Racer
Join Date: Sep 2005
Location: Bay Area, California
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Go out and test drive any 944 NA and you will see how much acceleration you are missing. Of course you have to test drive a 944 that is still in fairly good condition.
12-16-2009, 04:12 AM
#19
RL Community Team
Rennlist Member
Rennlist Member
I have had one fail (my '84, original gearbox). I replaced it with a used early one for $300 about 8 years ago (and it's still working). Later I bought a late one for $150 as a spare.
It seems logical to replace a failure-prone part with a higher quality part, but NA trannies are easy to find and fairly cheap, and they last a good while, so for now I'm going to stick with them.
My biggest problem with the NA tranny is how heavy it is, I threw out my back last month moving some engines and a 944 tranny... Lift with your legs, guys!
It seems logical to replace a failure-prone part with a higher quality part, but NA trannies are easy to find and fairly cheap, and they last a good while, so for now I'm going to stick with them.
My biggest problem with the NA tranny is how heavy it is, I threw out my back last month moving some engines and a 944 tranny... Lift with your legs, guys!
12-16-2009, 07:58 AM
#20
Rainman
Rennlist Member
Rennlist Member
lol
12-16-2009, 06:13 PM
#21
Race Director
Thread Starter
It's not a matter of the "output shaft and internals".
The Ring and Pinion gears are what fail on an N/A trans, due to many reasons. You will find that cars that have higher mileage, have been abused, and/or have been driven for a length of time with a failing clutch center are candidates for transaxle failure.
Tolerance levels increase with wear as well. Ideally you would have the transaxle cracked open at specific intervals to have the lash adjusted for the r&p so that they fit together properly. Otherwise the increased tolerance will cause failure, especially in a high shock instance (like dropping the clutch at high rpms or speed shifting). However there is no mention of regular lash adjustment intervals in the FSM.
The S2 transaxle (and 951) have a different r&p ratio (among other differences of course) that make for a more robust r&p.
Keep in mind that if you swap to a S2 trans that it is geared differently than your 944 N/A trans, you may not like it.
The Ring and Pinion gears are what fail on an N/A trans, due to many reasons. You will find that cars that have higher mileage, have been abused, and/or have been driven for a length of time with a failing clutch center are candidates for transaxle failure.
Tolerance levels increase with wear as well. Ideally you would have the transaxle cracked open at specific intervals to have the lash adjusted for the r&p so that they fit together properly. Otherwise the increased tolerance will cause failure, especially in a high shock instance (like dropping the clutch at high rpms or speed shifting). However there is no mention of regular lash adjustment intervals in the FSM.
The S2 transaxle (and 951) have a different r&p ratio (among other differences of course) that make for a more robust r&p.
Keep in mind that if you swap to a S2 trans that it is geared differently than your 944 N/A trans, you may not like it.
Based on this feedback and the other I have received I am looking for an S2 at this point.
12-17-2009, 12:18 AM
#22
Drifting
i actually blew out my original trans, clutch already replaced, BUT......i didn't blow out the ring and pinion, i seemingly chipped the gears in second (shifting fast). it would always pop out, but if you drove easy, you could hold it in second. i gave it to andy (nine44) for helping me out on my car, hoping he could reuse it.
the "new" one i bought was from an 84 with similar miles (about 120,000) but has always seemed like it has more slack and whine.
i drive my car easy now. it isn't worth it to mess up a daily driver and force it off of the road because some girls want to race you...
the "new" one i bought was from an 84 with similar miles (about 120,000) but has always seemed like it has more slack and whine.
i drive my car easy now. it isn't worth it to mess up a daily driver and force it off of the road because some girls want to race you...
12-17-2009, 03:57 PM
#23
Three Wheelin'
my stock n/a trans has 216,700 miles on it, the last 3 with a 400 horsepower v8 pounding on it, and it's still drivable, but it's starting to lose it a little, it's pretty rough and second gear is almost impossible to get into at speed...gonna need a turbo trans soon
12-17-2009, 04:14 PM
#25
Racer
I recently replaced my whiny transmission after 9 years, for two and a half of the nine it survived my turbo charged motor. The N/A tranny was sweet with the turbo but I could not launch the car due to the fear of my R/P breaking, I love the 6 speed.
12-17-2009, 06:28 PM
#26
Three Wheelin'
