EspenT

We're puting toghther our race car and run upon a minor setback. The engine mounts on the GT does not fit into the old crosmember. There seems to be at least three ways to make the engine fit in the car.
1 Drill some new holes in the old crosmember and use the GT engine mounts.
2 Make some custom engine mounts.
3 Get a GT crossmember.

Would solution 3 get me into problems later when fitting the suspension ?

Gues someone has done this before and allredy have the solution.

Jim bailey - 928 International

For your intended use why not solid mount the engine.

BC

1) Not very clean
2) Sound like a big todo with little gain?
3) This is the best and easiest solution.

Later engine in older car fits just fine, no issues when you use the later K-members.

Richard S

Use a later cross-member. Drilling holes in the existing one will NOT work, the early crossmembers are shaped differently than the later style crossmembers. By drilling holes in the early crossmember, this causes the new style motor mounts to be too close together, and the oil pan will not clear them when installing the engine. The later crossmember will bolt into the early cars, I did this same thing on my 1980 928.

Rich

Peter F

And I think that means any cross member can be used from S4 cars as well.
(not only GT version since they are the same)
So any crossmember from -87 or maybe even earlier will fit.

/Peter

BC

Any cross member from the cars that use the round mounts will work.

Vilhuer

All crossmembers which use round fluid filled mounts will work. This means '83 MY or younger.

EspenT

I'l guess it's not to hard to find another one then.
Feel bad about not geting to use this one after all the love and care spent on it.

BC

A fellow powder coater! Hello Brother! Wonderful. How did you get the bushings off the lower rear arms or did you paint them without disassembly?

Jim bailey - 928 International

You could use the early rubber mounts...with your nice clean early crossmember.

EspenT

Thanks everyone..
Went with the old rubber mounts. Didn't know i still had them floating around in the shop.
I didn't want to solid mount it becase I want to get suspension input trought the seat not engine vibration.

BrendanC, I have to admit that the parts that had ruber bushings that i could not remove only has paint on them. My father in law works in a powder coating shop and has powder coated almost every part on the car that could be powdercoated.

marton

some people say that the 16V heads work better on the newer blocks = more HP
Plus you can throw away a lot of the more complicated things from the newer cars like flappy

Marton

EspenT

This is a Twin turbo setup using two turbonetics T04E, DTA standalone engine mangement and a few custom made parts.
Not much left of the "complicated things" that I would rather describe as old fasioned and simple.
There is a lot of horsepower to gain just by replacing that old bosch system with a modern properly maped engine managment.

JEC_31

Wow, you are getting serious.

Got pics?

...and FWIW I happen to agree on the value of standalone management.

EspenT

I understand that people would like pictures of this.. And there will be. But now is not the time. There are still isues that needs to be solved and parts to fabricate.