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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Re: Other Transaxles

Post  stuart f. wright on Tue Jan 12, 2010 8:53 pm

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 .
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Re: Other Transaxles

Post  Porch on Tue Jan 12, 2010 10:55 pm

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.
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Re: Other Transaxles

Post  gamman on Wed Jan 13, 2010 6:24 am

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.
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Re: Other Transaxles

Post  stuart f. wright on Wed Jan 13, 2010 8:41 pm

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
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 7:06 am

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
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Re: Other Transaxles

Post  Porch on Thu Jan 14, 2010 2:34 pm

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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Re: Other Transaxles

Post  xschop on Thu Jan 14, 2010 2:54 pm

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. .... Sleep
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 5:12 pm

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
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3.0

Post  xschop on Thu Jan 14, 2010 5:23 pm

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 scratch


Last edited by xschop on Thu Jan 14, 2010 5:24 pm; edited 1 time in total
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Re: Other Transaxles

Post  944-LT1 on Thu Jan 14, 2010 5:24 pm

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! Shocked 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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Re: Other Transaxles

Post  Johnny Johnny on Thu Jan 14, 2010 5:27 pm

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! Shocked Used versions are being sold at 4000. Thats a bit on the high side.

That's what I was thinking.

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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 5:33 pm

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
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 5:56 pm

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
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Re: Other Transaxles

Post  Porch on Thu Jan 14, 2010 7:03 pm

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?
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944 pinion

Post  xschop on Thu Jan 14, 2010 7:16 pm

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)
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 7:25 pm

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
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 7:49 pm

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.
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Re: Other Transaxles

Post  xschop on Thu Jan 14, 2010 7:50 pm

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.
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 8:01 pm

xschop 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.
give m a calll email m with your needs they very helpful
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 8:10 pm

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
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 8:20 pm

......and if they didnt cost 5-10 thousand dollars! Shocked 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?
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Re: Other Transaxles

Post  xschop on Thu Jan 14, 2010 8:35 pm

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.
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Re: Other Transaxles

Post  stuart f. wright on Thu Jan 14, 2010 8:41 pm

u oughta give m a call he said an na rp less than a grand turbo litle more
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Re: Other Transaxles

Post  944-LT1 on Thu Jan 14, 2010 8:44 pm

Replacing the pinion is gona suuuuuck. How are they going to supply a ring without a corresponding pinion?

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C5 Automatic R&P Ratio

Post  xschop on Wed Jan 20, 2010 12:18 pm

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)
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