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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Why no Corvette or F-body Transmissions?

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Why no Corvette or F-body Transmissions?

Post  jevs on Sun Apr 14, 2013 8:42 pm

Just started looking around on these cars today. I had a 944 a long long time ago that I liked and I am kind of hunting around for something neat to build. Pretty much looking at things with LS swaps.

I was just wondering how come no one seems to mod the car to just use the corvette transmission in the rear. I am sure there is a reason, but I just have not seen it yet.

One thing I ran into with my GTM was a bunch of hassle finding a transaxle with good gear ratios for an LS motor. I don't even want to mess with these if I cannot have proper gear ratios to take advantage of the great MPG's an LS can get. I am not interested in a track car, so the higher gears matter to me.

Anyway, are their any reasonable to accomplish options to use the rear mounted corvette trans, or a front mounted F body trans?

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Re: Why no Corvette or F-body Transmissions?

Post  Arthropraxis on Sun Apr 14, 2013 8:53 pm

The turbo transaxle uses almost the same gear ratios that the Corvette C5 uses for the first 5 gears, it is missing the sixth gear overdrive. Some use 18 inch wheels and an early model 5th gear to get better highway cruising RPM and mileage.
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Re: Why no Corvette or F-body Transmissions?

Post  jevs on Sun Apr 14, 2013 9:35 pm

Yeah I kind of read about that much. It just stinks that it will not take full advantage of what the LS has to offer on the highway. So how about a GM transmission (front or rear mount)? Anyone doing those?


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C5 trans

Post  kevin924kevin on Mon Apr 15, 2013 8:21 am

I am in the process of using the complete corvette drive line.
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Re: Why no Corvette or F-body Transmissions?

Post  docwyte on Mon Apr 15, 2013 8:53 am

Look into the amount of fab work Kevin is doing to fit the Corvette transaxle and you'll understand why hardly anyone uses it.

The Camaro/Firebird T56 won't fit as the 944 is a rear transaxle car.

While I'd love to have the Corvette 6th gear for relaxed highway cruising, the amount to make it work isn't worth the reward.

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Re: Why no Corvette or F-body Transmissions?

Post  xschop on Mon Apr 15, 2013 9:19 am

It fits in the 928. I took a nice ride in a supercharged 928 with the 6 speed transmission this weekend. 70mph on the hiway was 1475 RPM Very Happy
Dinsdale took a trip from Houston Tx. to Iowa and back without a hitch.....

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Re: Why no Corvette or F-body Transmissions?

Post  v8carreragts on Mon Apr 15, 2013 1:10 pm

Sweet!
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Re: Why no Corvette or F-body Transmissions?

Post  Admin on Mon Apr 15, 2013 6:12 pm

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It's not unheard of, you just have to look around and you'll find it!

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C5 trans

Post  kevin924kevin on Tue Apr 16, 2013 8:27 am

Admin, looks graet are you close to having the install done.more pics.
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Re: Why no Corvette or F-body Transmissions?

Post  Porch on Thu Apr 18, 2013 11:12 pm

It's not impossible, you just have to gut the back half of the car to do it. I'd love a few extra mpg's but the cost/benefit just isn't there.
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Re: Why no Corvette or F-body Transmissions?

Post  xschop on Fri Apr 19, 2013 7:45 am

Not only the extra overdrive, but first gear is actually a V8 first gear. Even the 951 trans 1st is too short IMO for the torque.

Also the rear housing for the R&P can be swapped quickly as the gear lash/preload is set within the housing itself.
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Re: Why no Corvette or F-body Transmissions?

Post  Porch on Fri Apr 19, 2013 9:23 am

So we're talking thousands of dollars and potentially a hundred hours or more of labor to get a 1st gear that's a little better, and a 6th gear that drops the RPMs on the freeway.


Seems like you should have just bought a Z06 at that point. It's a better car all around anyways.
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Re: Why no Corvette or F-body Transmissions?

Post  xschop on Fri Apr 19, 2013 10:09 am

Some people have the skills and will.
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Re: Why no Corvette or F-body Transmissions?

Post  Lemming on Fri Apr 19, 2013 12:34 pm

Not to mention that once done, you are a hop, skip and jump from installing an emco sequential affraid
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Re: Why no Corvette or F-body Transmissions?

Post  xschop on Fri Apr 19, 2013 12:54 pm

...not to mention the 45-55 weight distribution Very Happy
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C5 trans

Post  kevin924kevin on Fri Apr 19, 2013 3:53 pm

Hi all, i need to chime in on this one do to the fact i am doing it. In my opinion the benefits out way the cost. Yes there are some mods required to make the vette trans work, but really not that bad. In my situation,i have choosen to do a few extra mods at my choice. The trans tunnel cross member at the back of the car can be modified in a few differant ways, I choose to use the double 1.75 DOM seamless for strenght ie side impact, and run a complete brand new cross member from frame rail to frame rail. The plates that came with my cage i had made longer to allow the new cross member to tie in at that location. The mods to the torsion tube have to happen to allow the trans to fit in that space. Again there are various ways this can be done. I choose to use DOM tubing again for the upper support between the pieces, and i will do a tube across the bottom bolted in place for that piece of mind.Their are a lot of cars that have the torsion bars removed and run the coil overs with out a hitch. The ease of changing the gear ratio in the vette trans speaks for its self. I plan to autocross my car, but i am building it for a highway cruiser and day to day driving.With the shock package i will run, this car will handle far better than it ever did. The weight balance will be more in line with 50/50. My car from factory was 53 front and 47 rear. My LS3 is only about 70 pounds heavier than my stock motor.Everyone is entitled to there opinions and choices. I do not plan on building a piece of crap. Do it once and do it right is the only way in my opinion. I may have over engineered things but that is my choice, i am the one that will be driving this car and saftey is important. My car will do over 200 MPH and should do 0 to 60 in under 4 seconds.Simple super car numbers at a fraction of the cost. This mod is not as scary as my build site shows, it can be done for a fare cost. The trans it self is less than a lSD porsche trans. I paid 1100.0 US dollors for the complete trans torque tube assembly with 18000 miles on it and it has LSD and will take the torque and HP the vette motor produces all day long with out issues.Again everyone make ther own choices this happen to be mine. Personaly i think it is the right choice for what i want out of my little car. My car will weigh in at 2500 or less, power to weight is everything.
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Re: Why no Corvette or F-body Transmissions?

Post  bluejk09 on Sat Apr 20, 2013 11:31 am

Anybody have any idea of the cost of a corvette trans swap by a shop? I know it's very labor intensive but have no idea how many hrs it would take?

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Re: Why no Corvette or F-body Transmissions?

Post  suboptimalfit on Sat Apr 20, 2013 12:43 pm

from the 928 side of things, what Chop and Dins have done is a life saver! The early 5speeds were prone to synchro issues and questionable shift quality. even with easy shifting, & the best gear oils the boxes were light duty, super expensive to repair, piles of aluminum... what's not to like about upgrading? Very Happy






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Re: Why no Corvette or F-body Transmissions?

Post  Porch on Sun Apr 21, 2013 6:58 pm

Even the T56's are fairly weak, though. The only reason to bother with a T56 swap is that you could put in a Transzilla or similar upgraded T56. I have a friend who grenaded his Z06's T56 with a drag launch on street tires and he is definitely not the first. Say what you want about his driving abilities, but the fact is that the T56's themselves aren't a silver bullet for power, they take a lot of work to put in, and the benefits are pretty lame at best.

Some might call that "doing it right", but i'd just say you're spending time on something that most people won't really benefit from. But, it's not my build and not my time and money, so if you really think that's going to make or break the car for you then go for it!

I'll just keep driving mine and you guys can keep yours up on jackstands until it's just like a stock Corvette Razz
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Re: Why no Corvette or F-body Transmissions?

Post  docwyte on Mon Apr 22, 2013 9:46 am

way too much work for the benefits you get. I'm also not keen on cutting up the chassis. If I had the skills and lots of spare time on my hands it might be an interesting exercise, but it's just not practical.

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Re: Why no Corvette or F-body Transmissions?

Post  944convert on Mon Apr 22, 2013 10:52 am

docwyte wrote:way too much work for the benefits you get.
It’s often the intangible benefits that’s most important. Finding the answers to questions they have…questions that we would never have thought.

It’s not always “doing it right” but seeing if it can be done at all.

Just the challenge alone and the immeasurable satisfaction when it is completed to you own total satisfaction.

You don’t have to win a race to feel like a winner. You can feel like a winner by just building the car and enjoying every minute while doing it. cheers

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C5 trans

Post  kevin924kevin on Mon Apr 22, 2013 11:25 am

It’s often the intangible benefits that’s most important. Finding the answers to questions they have…questions that we would never have thought.

It’s not always “doing it right” but seeing if it can be done at all.

Just the challenge alone and the immeasurable satisfaction when it is completed to you own total satisfaction.

You don’t have to win a race to feel like a winner. You can feel like a winner by just building the car and enjoying every minute while doing it.
This statement says it all. Thank you 944convert.
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Re: Why no Corvette or F-body Transmissions?

Post  Porch on Mon Apr 22, 2013 4:29 pm

You don’t have to win a race to feel like a winner. You can feel like a winner by just driving the car instead of working on it all the time and enjoying every minute while doing it.

FTFY
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Re: Why no Corvette or F-body Transmissions?

Post  944convert on Mon Apr 22, 2013 8:49 pm

Well, if that makes you feel better then I'm happy for you.

But don't stop now...fix those the other postings too lol!

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