Looking into different rebuilt 944 engines

pozican · 07-06-2006, 09:13 AM

I was planning on rebuilding my engine, and popping in an aftermarket turbo for some extra power.
So I've started pricing buying a rebuilt longblock, and I came across a 944S engine.

How hard would it be to retrofit my N/A stuff to the 944S longblock?
Would I get any more power out of it?

And actually, if I'm putting an aftermarket turbo anyway, what about a turbo longblock?

It doesn't seem like the longblock would do much for me, but if I'm gonna price them, I may as well price them right...

Thanks guys

-Alex

Techno Duck · Techno Duck's Garage

If you are going through the trouble of swapping a different engine in, find atleast a S2 or the best choice a 968 motor.

pozican · 07-06-2006, 09:23 AM

I don't know if I'll be able to find a full 968 engine, if I buy the longblock, what will it cost me to get all the new parts -- I'm sure my 944 parts will not bolt on...

hpaulb · 07-06-2006, 10:10 AM

Remember the big difference between turbo and non is the compression ratio. You'll have to lower it for a turbo. Might get away with an extra thick head gasket like the (wild fire?) ones used when the block/head is shaved.

BananaClip · 07-06-2006, 10:36 AM

by using the 944S longblock you'd be keeping the 944S valvetrain right? some of your accessories might retrofit it, but it'd be a mixed bag and you'd still need the wiring, DME, and plumbing unique to the S and you'd get barely any gain in power. If you want to go to the trouble of putting in a new engine, get a complete 951, S2, or 968 engine.

Putting in a 951 lump would be so much cheaper and easier than reworking your NA motor and it would probably end up about the same.
I mean everything you'd swap out or modify on it would just get it to the point where it was almost identical to a 951 motor.

If you want to do a 3.0 turbo motor, however, you can get a 3.0 (S2, 968) shortblock and have lower CR pistons put in, and get Lindsey, Powerhaus, Broadfoot, or really any 944 shop to modify a 951 head for it, and put on pretty much the rest of the 951 turbo kit and maybe a bigger turbo. That would be a little more effort and expense than turboing the 2.5, but you would get something you can't buy off the shelf so maybe its worth it !

also don't listen to me im just a dreamer

Britwrench · 07-07-2006, 07:13 AM

Comes down to this:

How much money are you budgeting for the engine rebuild?
Is the rest of car up to date with maintenance?
Suspension and brakes are good?
Transmission and cv joints good?
Everything else working, paint and body good?
What is the future plan for the car? Racing Autox or street?
And there is more..........