944Hybrids: 924/944/968 and 928 V8 Conversions
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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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how much power can a N/A tranny take?

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Post  kfsaleh944 on Sun Mar 15, 2020 5:25 pm

im planning on doing a 1JZ-GTE engine swap on my 944, since the 1jz is 280 hp stock, can the n/a tranny handle that amount of power without breaking the r&p?

kfsaleh944

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Post  Rich L. on Sun Mar 15, 2020 9:06 pm

I think your answer is 20% engine power and 80% driving style. I ran the original n/a transmission in my 944 with a 400 hp, 400 lb/ft LS1 on the track for 3 years, probably 15k miles. I ran it hard for long session on multiple day events. It did fine, no broken parts and no darkened fluid. The only reason I change the trans was to add an LSD. And that trans is working well too.

The trick here is mechanical sympathy. I never did a clutch-drop launch. I never pounded a shift. I never raced anyone stoplight to stoplight. All my usage was gentle launches, good warm-ups and then hard, full-throttle 3rd-5th gear running.
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Post  kfsaleh944 on Mon Mar 16, 2020 7:58 am

Rich L. wrote:I think your answer is 20% engine power and 80% driving style. I ran the original n/a transmission in my 944 with a 400 hp, 400 lb/ft LS1 on the track for 3 years, probably 15k miles. I ran it hard for long session on multiple day events. It did fine, no broken parts and no darkened fluid. The only reason I change the trans was to add an LSD. And that trans is working well too.

The trick here is mechanical sympathy. I never did a clutch-drop launch. I never pounded a shift. I never raced anyone stoplight to stoplight. All my usage was gentle launches, good warm-ups and then hard, full-throttle 3rd-5th gear running.

makes sense, ill do my best to drive it with mechanical sympathy. thanks for the advice.

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Post  Hotrodz of Dallas on Mon Mar 16, 2020 12:06 pm

But, not everyone is that lucky. I had a built 944 turbo that made 400 whp and 340 ftlbs torque. Installed an NA trans and it lasted about a week of running it on the highway racing other cars. Never dropped the clutch and never speed shifted. Probably raced someone 4-5 times total. It sheared all of the teeth off of the pinion gear and some off of the ring gear. While I know some people make them last awhile, most won't handle more than about 200 ftlbs of torque.
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Post  kfsaleh944 on Mon Mar 16, 2020 2:36 pm

it depends on the previous owner and how well he treated the car. But its a risk im willing to take since the car is terribly slow, and i cant stand driving a slow car.

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Post  turbobob924 on Wed Mar 25, 2020 9:52 am

I had my buick V6 swap for a while which made 600ft lbs at the wheels
I blew up a couple transmissions due to

Sticky tires
Weak transmission mounts which caused bad shell hop

My current 86 turbo trans is still doing ok

Hope to get my LS swap done this year but it's all in storage now while I'm moving back to Ohio
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