HOW TO DO AN ADVANCED SEARCH.
Mon Jul 08, 2013 3:56 pm by Admin
For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.
When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).
After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …
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Other Transaxles
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944Hybrids: 924/944/968 and 928 V8 Conversions :: Technical Stuff (other than motors) :: General Mechanical
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Re: Other Transaxles
i was speaking to a friend of a mine who is a machinist about a bullet proof design homade transaxle. heres somthing for you to chew on xshop.mount a lenco 5speed to a very narrowed ford nine inch housing with hubs to attach cv style axles .
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
The subie transaxles suck (with the exception of the STi box). I've seen multiple WRX diff failures. Most subie guys who are making power go to the STi box for the better gear ratios and stronger internals.
The later WRX boxes are better than the early ones (i don't remember, i think it's like 2005+), but they still shatter. The early boxes had significant R&P issues, i don't know if they were officially recalled or not??
My girlfriend has had a '98 forester and now owns a 2005 forester, it has worse freeway RPMs than my Porsche.
Just priced the STi boxes on ebay: $2800-4200.
The later WRX boxes are better than the early ones (i don't remember, i think it's like 2005+), but they still shatter. The early boxes had significant R&P issues, i don't know if they were officially recalled or not??
My girlfriend has had a '98 forester and now owns a 2005 forester, it has worse freeway RPMs than my Porsche.
Just priced the STi boxes on ebay: $2800-4200.
Porch- Posts : 851
Join date : 2009-09-02
Age : 42
Re: Other Transaxles
Had an 09 sube, the 09 wrx (and legacy) were based on the same platform. Yes, the early ones were bad. They fixed it up at that time, but they also went to a worse LSD setup.
gamman- Posts : 112
Join date : 2010-01-12
Location : Canada
Re: Other Transaxles
i found the performance transaxle of your dreams xshop check out california performance mendeola s4 mid engine high performance transaxle for mid engine racing dunebuggies running ls motors they have a website and might even be able to upgrade 944 transaxle check it out california performance .com i dont know why i didnt think of m before my buddy got one of heir trnsaxles in his race buggy .handles up 2 900 hp
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
the transaxle can b shifted with electronic paddle shifters.the cv axles they offer are very heavy duty.the diminsions i don have but i will do some research and find out a little more but i believe for a supercharged motor in a 944 i think this transaxle would work
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
Man, those californiaperformance.com "Mendeola" transaxles are pretty damn nice!! That would be a beautiful solution!
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Now for the bad news: The gear ratios look great, but the R&P ratios are all extremely high (in the 4.xx+ range). They would be perfect if it weren't for that....
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Now for the bad news: The gear ratios look great, but the R&P ratios are all extremely high (in the 4.xx+ range). They would be perfect if it weren't for that....
Porch- Posts : 851
Join date : 2009-09-02
Age : 42
Re: Other Transaxles
The gear ratios look great, but the R&P ratios are all extremely high (in the 4.xx+ range). They would be perfect if it weren't for that....
P.O.T. ....
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: Other Transaxles
might be abe to order custom ratio im checking into it as they do alot of work on volkswagon and 914 porsche transaxles and they do dcustom rebuilds
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
3.0
If only there were a 3:1 R&P for the 944 NA box.....peen the stock gears and cryo-treat, then beef the axles/cv's...
I have another question since I'm not up on gear grinding/angles, etc....
Would it be possible to take the NA pinion shaft, machine off the pinion surface and spline the shaft for a different pinion? IIRC the Hypoid offset is 12mm or so, if another ring and pinion with that hypoid could be sourced....hmmm
I have another question since I'm not up on gear grinding/angles, etc....
Would it be possible to take the NA pinion shaft, machine off the pinion surface and spline the shaft for a different pinion? IIRC the Hypoid offset is 12mm or so, if another ring and pinion with that hypoid could be sourced....hmmm
Last edited by xschop on Thu Jan 14, 2010 5:24 pm; edited 1 time in total
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: Other Transaxles
Now for the bad news: The gear ratios look great, but the R&P ratios are all extremely high (in the 4.xx+ range). They would be perfect if it weren't for that....
......and if they didnt cost 5-10 thousand dollars! Used versions are being sold at 4000. Thats a bit on the high side.
Should start thinking custom gears/ring and pinion. Do our gears or ring and pinion interchange with anything on the road with a V8???
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944-LT1- Moderator
- Posts : 1265
Join date : 2009-06-09
Age : 102
Location : NOTRE DAME
Re: Other Transaxles
944-LT1 wrote:Now for the bad news: The gear ratios look great, but the R&P ratios are all extremely high (in the 4.xx+ range). They would be perfect if it weren't for that....
......and if they didnt cost 5-10 thousand dollars! Used versions are being sold at 4000. Thats a bit on the high side.
That's what I was thinking.
Johnny Johnny- Posts : 164
Join date : 2009-06-09
Age : 53
Location : Oakville, Ontario Canada
Re: Other Transaxles
calif trans axles might be able to source the ring and pinion for a 944 im waiting to hear back.they work on mostly vw porsche units so id guess that the might be able to do somthing for 944
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
another source for high perf gears for porsche transaxle is california motorsports they located in arizona they sell albins off road gears for racing and high perf applications check them out they are a place you might find what you need they have web page
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
I've never pulled one of the 944 transaxles apart, but i'm guessing we have an extremely long pinion that acts as the main shaft in the transaxle? Or is there a coupler in there somewhere?
Porch- Posts : 851
Join date : 2009-09-02
Age : 42
944 pinion
It's all 1-piece machined part, that's why I always wondered if the pinion splines could be machined off and the shaft splined for another splined pinion (like the Vette C5 pinion)
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: Other Transaxles
just got off phone with california motorsports and they will make any custom part you need such as pinion shafts ring gears ectthey use the same machinery that was used to cut the gears in porsche transaxle.his answer to your question about milling off teeth and splining was no.they can make in house any transaxle gear or other part you need .any ratio also i might add th mendeola can be equipped with higher gear ratios such as337 or 355 ect
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
not to confuse anyone but california motosorts is seperate company from california performance transaxle.and california motorsports was glad to answer any questions you might have and would like to help any way that they can.
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
if a 3.0 or so R&P can be done for a grand or so. I bet a few people would be on board.
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: Other Transaxles
give m a calll email m with your needs they very helpfulxschop wrote:if a 3.0 or so R&P can be done for a grand or so. I bet a few people would be on board.
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
the mendeola is offerd by california performance trnsaxle and can be built with 3.xxx gearing im waiting to hear back from them and yes they cost 6 grand but its not a corvette trans and it would prob make a better fit.and cv axles they offer are heavy duty
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
......and if they didnt cost 5-10 thousand dollars! Used versions are being sold at 4000. Thats a bit on the high side.
Should start thinking custom gears/ring and pinion. Do our gears or ring and pinion interchange with anything on the road with a V8???[/quote]mercedes benz?
Should start thinking custom gears/ring and pinion. Do our gears or ring and pinion interchange with anything on the road with a V8???[/quote]mercedes benz?
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
That's funny, a few years back i saw a company from Az that was offering 2.9x R&P ratios for the 016 boxes for 1200 bones. I wonder if that was them?
If a decently priced R&P can be found, I would be up for making the rear shaft bearing backing plates (3/8" is what I have in mind) for these trans and milling the casing 3/8". Then this box would be Rob Proof and have good overall ratios for the V8. A 3.0 ish R&P in the NA box would be ideal.
If a decently priced R&P can be found, I would be up for making the rear shaft bearing backing plates (3/8" is what I have in mind) for these trans and milling the casing 3/8". Then this box would be Rob Proof and have good overall ratios for the V8. A 3.0 ish R&P in the NA box would be ideal.
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: Other Transaxles
u oughta give m a call he said an na rp less than a grand turbo litle more
stu wright- Posts : 312
Join date : 2009-07-19
Age : 61
Location : effingham illinois
Re: Other Transaxles
Replacing the pinion is gona suuuuuck. How are they going to supply a ring without a corresponding pinion?
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944-LT1- Moderator
- Posts : 1265
Join date : 2009-06-09
Age : 102
Location : NOTRE DAME
C5 Automatic R&P Ratio
I was worried about the C5 differentials being 3.42 and up on the Vette transaxle.....
Just found out that the automatic C5 diffs come in 3.15 and 2.73, maybe others...This is good news for mating it to the abundant Aisin trannies...
I just aquired a C5 auto diff with a 2.73 LSD, so no turning back, hehe
AX15 - 3.83 2.33 1.44 1.00 0.79
AR5 - 3.753 2.26 1.37 1.00 0.729
MA5 - 3.753 2.26 1.37 1.00 0.729 (Colorado/Canyon/Hummer H3)
MA5 - 3.75 2.26 1.51 1.00 0.729 (Solstice/Sky)
R150 - 3.83 2.062 1.436 1.00 0.838
R151 - 4.31 3.32 1.52 1.00 0.83
R154 - 3.25 1.95 1.30 1.00 0.75
R155 - 3.954 2.062 1.436 1.00 0.805
NV1500- 3.85 2.25 1.48 1.00 0.80
NV3550 - 4.01 2.32 1.40 1.00 0.78
Aftermarket gearset by OS Giken for Toyota R, GM/Isuzu AR5 and Jeep AX15: 2.701 1.614 1.215
Best gears possible out of 944 Turbo Box with NA 5th swap..... Gears Multiplied x R&P....
1st (3.500) ..... 11.81
2nd (2.059) ..... 6.95
3rd (1.400) ..... 4.72
4th (1.034) ..... 3.48
**NA*** 5th (0.729) ..... 2.46
Rev (3.500)
R&P (3.375)
Just found out that the automatic C5 diffs come in 3.15 and 2.73, maybe others...This is good news for mating it to the abundant Aisin trannies...
I just aquired a C5 auto diff with a 2.73 LSD, so no turning back, hehe
AX15 - 3.83 2.33 1.44 1.00 0.79
AR5 - 3.753 2.26 1.37 1.00 0.729
MA5 - 3.753 2.26 1.37 1.00 0.729 (Colorado/Canyon/Hummer H3)
MA5 - 3.75 2.26 1.51 1.00 0.729 (Solstice/Sky)
R150 - 3.83 2.062 1.436 1.00 0.838
R151 - 4.31 3.32 1.52 1.00 0.83
R154 - 3.25 1.95 1.30 1.00 0.75
R155 - 3.954 2.062 1.436 1.00 0.805
NV1500- 3.85 2.25 1.48 1.00 0.80
NV3550 - 4.01 2.32 1.40 1.00 0.78
Aftermarket gearset by OS Giken for Toyota R, GM/Isuzu AR5 and Jeep AX15: 2.701 1.614 1.215
Best gears possible out of 944 Turbo Box with NA 5th swap..... Gears Multiplied x R&P....
1st (3.500) ..... 11.81
2nd (2.059) ..... 6.95
3rd (1.400) ..... 4.72
4th (1.034) ..... 3.48
**NA*** 5th (0.729) ..... 2.46
Rev (3.500)
R&P (3.375)
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Page 2 of 4 • 1, 2, 3, 4
944Hybrids: 924/944/968 and 928 V8 Conversions :: Technical Stuff (other than motors) :: General Mechanical
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