G31 trans in 951 race car ?
01-05-2009, 04:38 PM
#16
Rennlist Member
If I could put together a gear box rated at about 600 ft/lb, and only pushing about 400 ft/lb, wouldnt that be bulletproof? The axles/joints, could be had at well over those ratings. Making the next weakest link what? The tq tube? Wouldnt a modified G31 handle that load just fine? Some sources Ive found claim the GTP was pushing over 600, on the G31/03. Still trying to find the source again, that gave details on the G31/03 designation. If I remember the /03 was Porsche nomenclature for different gearing than the 931 G31. I could be wrong, I cant find the article now. Shoulda bookmarked it.
01-05-2009, 06:28 PM
#18
Rennlist Member
01-05-2009, 07:50 PM
#19
Formula One Spin Doctor
Rennlist Member
Rennlist Member
Its a almost 100% street car. Im just looking for peace of mind, that I can drive how I want when I want. I dont abuse my cars, but still.... Im thinking I could throw 10k(obviously the less the better) at a TA project over the next year. There has got to be a solution that Porsche has already dne for high tq setups. Not sure where to begin tho. Im in the process of researching, and trying to even figure out what all my options are. Still digesting alot of info. Id like to keep things as close to the 944 pedigree as possible. No major outcrosses! The G31 seems to be pretty close to fitting my needs. Not real expensive either. In my spare time Im planning on researching this to the tilt. Ill post back findings, data, etc. My goal is to try and do this purely Porsche.
Ive been looking into things like the GTP as examples, sources giving me info on the GTP are conflicting with each other as far as specs go. Anybody know where to look for definitive data on the GTP? Schematics would be nice. I have only found half *** sources so far. I realize the stock TA should "suffice", but im not really one for shoulds, and maybes. There has got to be a way to fit a bulletproof TA into my car for +/-10k, and keep it porsche/audi.
Ive been looking into things like the GTP as examples, sources giving me info on the GTP are conflicting with each other as far as specs go. Anybody know where to look for definitive data on the GTP? Schematics would be nice. I have only found half *** sources so far. I realize the stock TA should "suffice", but im not really one for shoulds, and maybes. There has got to be a way to fit a bulletproof TA into my car for +/-10k, and keep it porsche/audi.
When you say GTP are you talking 924 carrera GTP... If so , the GTP did not have a standard 931 box , hell not even close ......
Also the 924 GTP was not the fastest of the genre , the 924 gtr that ran in the Trans-Am where faster and had more power and the 944 GTP that ran in Imsa and The trans-am series had more power , most i have seen had Hewlands.
You will be OK on the street with your 951 box ...........
924 GTR vs V-8 , 600- 700 bhp trans-am cars . well if you can get past ***** -T
http://www.youtube.com/watch?v=qNR3vkmX6Fk
http://www.youtube.com/watch?v=ANR2uccxczs
The 924 is running second driven by Miller .........................
01-05-2009, 08:28 PM
#20
Rennlist Member
When you say GTP are you talking 924 carrera GTP... If so , the GTP did not have a standard 931 box , hell not even close ......
Also the 924 GTP was not the fastest of the genre , the 924 gtr that ran in the Trans-Am where faster and had more power and the 944 GTP that ran in Imsa and The trans-am series had more power , most i have seen had Hewlands.
You will be OK on the street with your 951 box ...........
924 GTR vs V-8 , 600- 700 bhp trans-am cars . well if you can get past ***** -T
http://www.youtube.com/watch?v=qNR3vkmX6Fk
http://www.youtube.com/watch?v=ANR2uccxczs
The 924 is running second driven by Miller .........................
Also the 924 GTP was not the fastest of the genre , the 924 gtr that ran in the Trans-Am where faster and had more power and the 944 GTP that ran in Imsa and The trans-am series had more power , most i have seen had Hewlands.
You will be OK on the street with your 951 box ...........
924 GTR vs V-8 , 600- 700 bhp trans-am cars . well if you can get past ***** -T
http://www.youtube.com/watch?v=qNR3vkmX6Fk
http://www.youtube.com/watch?v=ANR2uccxczs
The 924 is running second driven by Miller .........................
Which hewlands transmission did the 944 GTP use? Could the hewlands stuff be worthwhile for the street?
Even if the stock one will work, this would still be a fun project. Still would be nice to know I could even abuse it a bit. I dont abuse it, but my thought is that if it can take the abuse, and I never abuse it, it should last a long time. Longer than stock.
01-05-2009, 09:05 PM
#21
Rennlist Member
Also, sometimes I might wanna turn the boost up
Im thinkin around 400 on my setup will be under about 1 bar. Racing gas, and more boost, and the power would go up significantly.
Im thinkin around 400 on my setup will be under about 1 bar. Racing gas, and more boost, and the power would go up significantly.
01-05-2009, 09:26 PM
#22
Rennlist Member
Tone, the Hewland would cost more than the car. There are meant to be a few guys running over 500hp with 968 trannys, even 951 trannys. If you're only going to build a high hp road car you will be fine with a strengthened stock tranny, unless you want to dump the clutch all day long. Racing put's MUCH more stress on the components than street.
01-05-2009, 09:51 PM
#23
Rennlist Member
Nice links AW. What was your association with these cars? I'm sure you could do a whole thread on this that we'd all find very interesting.
Those Fords were very quick. The kid in the 2nd car was doing a great job. Wonder what happened to both him and the inimitable ***** T?
Those Fords were very quick. The kid in the 2nd car was doing a great job. Wonder what happened to both him and the inimitable ***** T?
01-05-2009, 10:08 PM
#24
Rennlist Member
01-06-2009, 12:09 AM
#25
Rennlist Member
The GM hydromatic 3 speed auto is close to bullet proof... (Ferrari 400i uses that.) But I wouldn't want that slush box in my car!
01-06-2009, 12:42 AM
#26
Three Wheelin'
If something different is what you have in mind for your uhm.. uhm.. 944 based project STREET car than go with the easy yet economical 968 transaxle as you only need a few parts to go with it to get it to work flawlessly. The G50 unit will handle much more power than the older design of the stock transaxle and you have more gear selection which is what is great about this scenario! This upgrade by itself is the most beneficial thing one can do to a 951 HANDS DOWN!
01-06-2009, 04:02 AM
#27
Burning Brakes
Join Date: Jan 2007
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That TH400 also ran in my 3/4 ton truck for 500,000 miles too. Spent most its life commuting and towing farm trailers! The seals got stiff, and the torque converter started slipping badly. Had it rebuit for 400 bucks and I was back chuggin (hopefully for another 500K).
01-06-2009, 10:52 AM
#28
Three Wheelin'
Upper picture is of a 937 GTR one that ran in Le Man's in '81 or '82
Lower picture is of Jurgen Barths personal 937 GTS which had a few special tweeks other than the normal clubsports!
Lower picture is of Jurgen Barths personal 937 GTS which had a few special tweeks other than the normal clubsports!
01-06-2009, 03:10 PM
#29
Rennlist Member
Nice pics BF. What is that small bar on JB's car? A brace or securing the cooler?
01-06-2009, 03:29 PM
#30
Rennlist Member
If something different is what you have in mind for your uhm.. uhm.. 944 based project STREET car than go with the easy yet economical 968 transaxle as you only need a few parts to go with it to get it to work flawlessly. The G50 unit will handle much more power than the older design of the stock transaxle and you have more gear selection which is what is great about this scenario! This upgrade by itself is the most beneficial thing one can do to a 951 HANDS DOWN!
Yeah great pics too!