DonE

What needs to be done to fit this transmission into a 79 930? I know the bell housing needs to be shortened, but what about the front mount? I do not want to cut the car or mess with the torsion bar assembly.

I already have the plumbing, pedal kit, slave/master cylinders, etc.

Will this tranny fit this car?

Thanks

(cross-posted on Pelican)

Geoffrey

The input shaft also needs to be shortened

DonE

Is that basically it? I will not have to cut the car or remove the torsion bars?

Geoffrey

Thats it. You may have to change pressure plates from the long bellhousing style to the short bellhousing style depending on what you have and which TOB you are using.

PorscheMD

I thought on pre-86 cars you had to weld a different mount for the trans to bolt up to allow for clearance of the torsion bar tube.

nathanUK '81 930 G50

You do, but you don't have to cut or remove anything from the torsion bar area. >89 non G50/50 turbo's.

PorscheMD

Thats what I was thinking. I have done the conversion on an 87' and was able to use the existing mounting location. I believe pre 87 it is a simple as welding a mount to the existing location.

DonE

Cool - now I need to sell my 4sp gearbox. Thx

Bruce M.

Hey, Don--

Wasn't it only a few months ago you were saying that you couldn't justify the cost for this swap?

Funny how that happens.

All I know is that it sure as heck woke up my car. I have 7.5/1 compression and a 935 clutch, though, so my take-off was much harder than the one you describe with your current set-up, and therefore the improvement from this swap in your car might less noticeable, at least in that area.

Are you doing to run an LSD? I would, with the power you describe, and especially if you hit the track.

DonE

Yah yah yah....

On the other hand, that should tell you what kinda price we are talking about for the G50 parts.

125shifter

Since nobody else has asked: why not a /50 or /52? Aren't you worried about a failure with a tranny for an NA engine?

Bruce M.

The G50s have handled a LOT of turbo power over the years of conversions...Excellent track record. Even some drag boys have used them.

E-man930

I was also under the inpression that ONLY the G50/50 or G50/52 trannies should be used with a turbo setup...

Bruce M.

Nope. G50s are routinely used, to good effect.

Chet 930

I just picked up a whole G50 setup for my 77 with the short bellhousing. Only drawback is that I have to get a LSD unit for it. Not going to install it right away because the car isnt back from IA yet anyhow, but whats a typical rebuild cost for one nowadays?