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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Automatic BH Adapter

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tourqe converter flexplate

Post  stuart f. wright on Wed Dec 23, 2009 8:54 am

xschop wrote:[You must be registered and logged in to see this link.]
Twisted Evil
thats a neat alternative pretty much a direct drive coupler for auto equipped vettes.now if someone could make them for 23 spline porsche shaft and make one to replace the fatory porsche rubber flex coupler for those who dont want to convert to v-8 power and one that bolts to chevy flywheel with c5 bellhousing for those that want v8 power in auto equipped 944 and 968 cars.one quick question are auto equiped bellhousings on a c5 vette the same as a manuel equipped c5 bellhousing im searching for a c5 bellhousing for a conversion


Last edited by stuart f. wright on Wed Dec 23, 2009 9:28 am; edited 2 times in total (Reason for editing : add)
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What Happened???

Post  968gene on Wed Dec 23, 2009 6:07 pm

Did this FS posting get Off Topic or what??? Shocked
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Re: Automatic BH Adapter

Post  gt1scca on Wed Dec 23, 2009 7:05 pm

Yeah, just a bit...

I hadn't noticed all this was in the F/S section.
I'll try to move it to a new thread.

Dang.

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Re: Automatic BH Adapter

Post  stuart f. wright on Wed Dec 23, 2009 7:13 pm

gt1scca wrote:Yeah, just a bit...

I hadn't noticed all this was in the F/S section.
I'll try to move it to a new thread.

Dang.
sorry im just trying to figure out some things on my cnversion
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Re: Automatic BH Adapter

Post  gt1scca on Wed Dec 23, 2009 7:20 pm

I fixed it.

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Re: Automatic BH Adapter

Post  stuart f. wright on Wed Dec 23, 2009 7:34 pm

gt1scca wrote:I fixed it.
lol
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Re: Automatic BH Adapter

Post  stuart f. wright on Wed Dec 23, 2009 8:18 pm

stuart f. wright wrote:
gt1scca wrote:I fixed it.
lol
your good
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Re: Automatic BH Adapter

Post  stuart f. wright on Sun Jan 03, 2010 4:02 pm

xschop wrote:I would be curious to see what the gears look like compared to the manual tranny. I had an 87 auto a few years ago that I got for $500 because is was slipping gears (and other things like oil in the coolant tank), sure nuff got it home, did a flush and put in Mobile 1 and it went 2 summers before it blew. The oil in the coolant tank was a $ 0.75 Viton O-ring in the oil/water cooler housing! I converted it to a manual and sold it. I know from working on that car that the P.O. neglected it. I've only HEARD that the Auto tranny is weak on the Old PHB, But always wondered if the gears were narrow or the friction/syncro discs were weak and could possibly be upgraded. You may be onto something and would be worth looking deep into... To answer your question, I also don't see why you can't make an adapter to fit the C5 auto Flywheel to the Porsche TT shaft. You definitely fit the bill here on this Forum....DIY
and FORSCHE!
i found this site ith some pretty good drawings and technical info on automatic transaxle [You must be registered and logged in to see this link.]
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Re: Automatic BH Adapter

Post  xschop on Mon Jan 04, 2010 6:47 am

Excellent find. I downloaded all the 944 stuff Wink
Hey Stuart, the clutch discs can be beefed up (kevlar) with some digging around. Amazing the R&P Ratio for the Automatic trumps even the 944T R&P. 3.08 and a 3.45
2 different boxes. I'm not up on automatics. Does the Torque converter ratio factor in? 2.08 & 2.5
2.71
1.50
1.00
3.08 R&P

2.55
1.45
1.00
3.45 R&P
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Re: Automatic BH Adapter

Post  Dawgz83948 on Mon Jan 04, 2010 10:37 am

xschop wrote:Excellent find. I downloaded all the 944 stuff Wink
Hey Stuart, the clutch discs can be beefed up (kevlar) with some digging around. Amazing the R&P Ratio for the Automatic trumps even the 944T R&P. 3.08 and a 3.45
2 different boxes. I'm not up on automatics. Does the Torque converter ratio factor in? 2.08 & 2.5
2.71
1.50
1.00
3.08 R&P

2.55
1.45
1.00
3.45 R&P
The R&P may be better but the final drive on the best auto is still just 3.08 whereas the final drive on the 944 Turbo with the N/A gear is 2.63 or 2.80 with the standard 5th gear.
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translation

Post  xschop on Mon Jan 04, 2010 10:54 am

Hey Dawg. I'm talking actual R&P ratio differences here....
944 NA 3.89
944T 3.375
I can't say weather the 944 Auto R&P's are larger at the bearing carriers, but the teath contact area may trump the 944T R&P and on top of that the Auto pinion is on a large shaft secured by 3 roller bearings and the 944 NA and Turbos have only 2.
The 944 NA and Turbo boxes are week at the rear thrust bearing retainers ( reinforcement plate mod proves this).
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Re: Automatic BH Adapter

Post  Dawgz83948 on Mon Jan 04, 2010 11:25 am

xschop wrote:Hey Dawg. I'm talking actual R&P ratio differences here....
944 NA 3.89
944T 3.375
I can't say weather the 944 Auto R&P's are larger at the bearing carriers, but the teath contact area may trump the 944T R&P and on top of that the Auto pinion is on a large shaft secured by 3 roller bearings and the 944 NA and Turbos have only 2.
The 944 NA and Turbo boxes are week at the rear thrust bearing retainers ( reinforcement plate mod proves this).

No I got that, but I wasn't sure if the R&P is a) strong enough to swap or b) if it's even possible.
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Re: Automatic BH Adapter

Post  xschop on Mon Jan 04, 2010 11:33 am

R&P is orientated differently, but Stuart is right, If the Clutch discs and gears could be beefed up, the R&P can take a major beat down. I'm doing research on an alternative "Homemade" transaxle that uses a C5 bolt-on differential. The tranny box has to be short enough to keep the axle out puts around 17-18 inches from the Torsion bar center.
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Re: Automatic BH Adapter

Post  Dawgz83948 on Mon Jan 04, 2010 11:46 am

xschop wrote:R&P is orientated differently, but Stuart is right, If the Clutch discs and gears could be beefed up, the R&P can take a major beat down. I'm doing research on an alternative "Homemade" transaxle that uses a C5 bolt-on differential. The tranny box has to be short enough to keep the axle out puts around 17-18 inches from the Torsion bar center.

Too bad the whole C5 setup couldn't be used.
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tranny ops

Post  xschop on Mon Jan 04, 2010 12:02 pm

The Vette can be used, the entire rear seat and floor metal has to be chopped and the Torsion tube has to be cut also (or a seperate connection tube between T56 and Differential to bypass the 944 torsion tube) which is a buttload of work. That and the early Vette T56 has isssues with synchros. I believe I may have found the 5 speed box I've been looking for... R154 from the Toyota Supra that can handle about anything you can throw at it.... I just got a reply back from the shitlist that a 928 G28 box is @ 17 7/8" flange to axles, the I measured the 944 axles are 16.5" from the torsion bar center.....Decisions
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Re: Automatic BH Adapter

Post  Dawgz83948 on Mon Jan 04, 2010 12:17 pm

xschop wrote:The Vette can be used, the entire rear seat and floor metal has to be chopped and the Torsion tube has to be cut also (or a seperate connection tube between T56 and Differential to bypass the 944 torsion tube) which is a buttload of work. That and the early Vette T56 has isssues with synchros. I believe I may have found the 5 speed box I've been looking for... R154 from the Toyota Supra that can handle about anything you can throw at it.... I just got a reply back from the shitlist that a 928 G28 box is @ 17 7/8" flange to axles, the I measured the 944 axles are 16.5" from the torsion bar center.....Decisions

You may want to look at the Toyota V16x. I thought the 928 would not work because of where the axles are.
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Re: Automatic BH Adapter

Post  xschop on Mon Jan 04, 2010 12:29 pm

BTDT... The v160 is not a good choice for the 944 because of the integral bellhousing....
with the r154, the rear casing can be made to fit the C5 differential and the Bellhousing can be removed and a torque tube adapter and coupler made to drop it over the 944 torsion tube....
I did look at a Getrag 265 with removable bellhousing, but I started looking at replacement part prices and am leaning way harder on the Aisin r154. It is also stronger that the Getrags and the 928/G28 box because of the steel sandwich plate incorporated into the casing. This is the problem with the 928 box in that the long alloy casing expands at high temps causing wear and failure....Not to mention the $2700 ring and pinion sets!
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got jacked

Post  xschop on Mon Jan 04, 2010 1:23 pm

Sorry for jacking your thread Stuart. BTW looking at the 944 auto manual PDF, the way that the dampner is described, I have no doubt that a modded 1x23 clutch disc can be grafted to an LS flywheel for your application. The beefier the clutch springs, the better.
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Re: Automatic BH Adapter

Post  stuart f. wright on Mon Jan 04, 2010 6:45 pm

xschop wrote:Sorry for jacking your thread Stuart. BTW looking at the 944 auto manual PDF, the way that the dampner is described, I have no doubt that a modded 1x23 clutch disc can be grafted to an LS flywheel for your application. The beefier the clutch springs, the better.
i dont know a whole lot about the internal on the 944 auto transaxle but my buddy that went through it said it s built very well .i do know one thing it has one heck of a quick acelleration off the line.and ive put it to the test several times and it hangs in .he pu kevlar friction discs in it .its in the rear so it stays cool plus i running 2 trans coolers 1 in rear n 1 in front.also i might add the stall speed is abbut 2800 rpm very usable.the line pressure cable needs to be adjusted per porsche specs. dont havethe top end of a 5 speed but its very quick off the line .id like to try a 968 auto or even what your thinkig about with vette.i got to have at least 1 vehicle in my fleet automatic.every vehicle i own is stick shift .lol i probaly gonna have 2 use a early flywheel ls wont bolt up i got early 70s sbc 2 pc rear main motor.


Last edited by stuart f. wright on Mon Jan 04, 2010 7:05 pm; edited 2 times in total (Reason for editing : add)
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Re: Automatic BH Adapter

Post  stuart f. wright on Mon Jan 04, 2010 7:23 pm

stuart f. wright wrote:
xschop wrote:Sorry for jacking your thread Stuart. BTW looking at the 944 auto manual PDF, the way that the dampner is described, I have no doubt that a modded 1x23 clutch disc can be grafted to an LS flywheel for your application. The beefier the clutch springs, the better.
i dont know a whole lot about the internal on the 944 auto transaxle but my buddy that went through it said it s built very well .i do know one thing it has one heck of a quick acelleration off the line.and ive put it to the test several times and it hangs in .he pu kevlar friction discs in it .its in the rear so it stays cool plus i running 2 trans coolers 1 in rear n 1 in front.also i might add the stall speed is abbut 2800 rpm very usable.the line pressure cable needs to be adjusted per porsche specs. dont havethe top end of a 5 speed but its very quick off the line .id like to try a 968 auto or even what your thinkig about with vette.i got to have at least 1 vehicle in my fleet automatic.every vehicle i own is stick shift .lol i probaly gonna have 2 use a early flywheel ls wont bolt up i got early 70s sbc 2 pc rear main motor.
ps your not jacking my thread your educating me and i thank you
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Re: Automatic BH Adapter

Post  Admin on Mon Jan 04, 2010 7:31 pm

How hard is it to get the stall converter?

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Re: Automatic BH Adapter

Post  stuart f. wright on Mon Jan 04, 2010 7:37 pm

Admin wrote:How hard is it to get the stall converter?
to get to the converter or get 1
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Re: Automatic BH Adapter

Post  Admin on Mon Jan 04, 2010 8:04 pm

To get one.

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Re: Automatic BH Adapter

Post  stuart f. wright on Mon Jan 04, 2010 8:27 pm

thats the factory converter in the 86 944 auto transaxle the factory specs rate it at 2800 rpm .i posted a site for used parts in that section he probaly has a few


Last edited by stuart f. wright on Mon Jan 04, 2010 8:31 pm; edited 1 time in total (Reason for editing : add)
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Re: Automatic BH Adapter

Post  xschop on Mon Jan 04, 2010 9:11 pm

Admin Quoted that the 944 NA/Turbo R&P orientation wants to "walk over the ring gear". This is where the Auto tranny R&P orientation outshines the 944 manual box. If the torque converter ratio could be decreased and the discs beefed like you have already done. This could be a good V8 ratio box. I think the fact that it is a slush box and high ratio geared, V8 torque may not be so brutal on the gears like the manual boxes.....Yes I know, maintenance...but all the maintenance in the world doesn't make up for beefed up gears
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Re: Automatic BH Adapter

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