How would one go about swapping one of these Twin Turbo straight sixes in an early 1985 944 N/A? Would it be worth it? What parts would I need? Thoughts on this would be great!

 

RB is enormous
JZ has been done but not super well.

youd be on your own partswise finding engine wiring, adapting motor to 944 torque tube, mounting the engine, where turbos plumb to...i dont want to knock the idea of engine swaps, im all for them, but i think there are better cars for the JZ to go into than a 944

 

oo ok cool well thanks for the info. i'm just looking for information on replacement engines because i'm gonna need a new one in my early model 944 so i'm just exploring options. if you know of any 944/968 engines for sale just let me know

 

Not to mention the power potential of either motor would destroy the rest of the drivetrain in these cars...

I say do it, and post up a build thread, and let everyone see what is going on!

 

On a scale of 1-10 for difficulty, and expense. These engines would be in the 9-11 range. I consider these types of motor swaps extreme in nature. You are pretty much on your own with a swap like this. There is very little documentation of swap conversions available..unless you are talking about a V8 swap. It may have been done, but unlikely they wrote a step by step guide for others. The fabrication skills to make such a project work are way beyond the weekend warrior wrencher.

I too am not against such swaps. I have done an extreme swap before for myself. Cubic Time, Money, and effort are required.

Calculate what you THINK it will cost, then triple that amount. There are all kinds of surprises along the way with these kinds of custom projects.

Cool just the same.

 

Yea, if you want more power, the v8 swap or even the 951 engine would a MUCH easier alternative. Besides, the RB26TT will not last as long as the Porsche engine either. IIRC, even if you begin to tune them slightly, the turbos only last like 30k miles before you have to replace them.

 

The 2JZ swap has been done. Look on youtube for it. I think it was in a 951 body though.

 

The problem is that it just does not make much sense.


For a small turbo motor there is the standard 951 motor. That is 10x easier than anything you mentioned. Plus once you get too power levels of 400 whp even 944 Turbo running gear is hitting the limits for relability.

You can with out too much effort to get 200-350 whp modified 951 so why bother with these. If it is torque you are after V8 swaps are relativly common and work well.

 

You would also have to consider all the weight your adding in the front. It would destroy the balance. However I love the jz engine, n/a, single, or twin turbo... I say DOOOOOO IIIIIIIIITTTTTTTTTTT

 

I'm sure if someone wanted to drop that much $$$ into a 944 - they would adress the drive train issue somehow

I've heard someone mention that a T-56 can be mounted in the 944 ... don't ask me how, I don't know, but DAMN

 

It is not a formal limit, but once you are at 400 whp you need to start taking care of the drivetrain. Up to that standard 944 turbo running gear is fine. Most of the time you can track 350 whp 944 turbo without beating up the drivetrain much. Beyond this guys start breaking stuff on the track. On the steet you can sustain more hp since most of the time you never use it. However a 944 chassis is not that great over 400 whp anyway. You need to go so stiff on the springs to control the hp you give up streetabilty.

The issue is the suspension geometery is just not good enough for 500 to 600 hp in a street car. So personally I would never bother going that high. I know friend who had a 400 hp street car and while fast is just seem so one dimensional. My 250 hp stock turbo S just was more balanced. Of course it did give up a lot of power and 100 more is probably just about right.

 

WHOA

research time..

 

We need to find out the dimensions of the transmission tunnel in the 944 and the dimensions of the T56. T56 here: http://www.sallee-chevrolet.com/BorgWarner/t56pics.cfm and the tunnell..... ???

 

Why would you bother to make a KA at all, and an SR is pointless as the 944 turbo engine is bigger and just as potent.

That you have an RB mocked up already is very cool though, nice work on that.

 

will be applying for a sponsor membership... will post more details on this topic after thanks