adequate suspension/brake setup for my 68 911 with 930 turbo engine

[adomakin]

what would be an adequate (read as safe!) suspention setup for my 1968 911 when ive installed the 3.3 turbo engine that im planning on fitting? i havn't seen the car yet but i think it may be a short wheelbase car. do i have to install aluminium rear arms or is that just a nice mod that people generally like to do? my mate is trying to put ally sc arms on his s/w/base car and its looking like he's going to have problems with the pivot point bracket on the torsion tube being in the wrong position and i dont want to go through all of that if standard long wheelbase arms will do. any views?

andy,

essex, uk

[jess p]

All 911 and 912 cars from 65-68 had the short wheelbase. The
pickup points on the torsion tube are different than cars 69 and later. If you attempt to bolt on trailing arms from cars later than
68, they will not match up properly to the swingplates. That includes turbo trailing arms. The only real and proper way to make a swb car to a long wheelbase car is to cut out the torsion tube and weld in one from a 69 or later. I am in the process of doing this and can provide you pics on how it is done. Believe me, it's not as bad as it sounds. The other issue is that when you do convert your car to lwb, it essentially moves the wheels back 2 inches, and requires you to weld on turbo flares to correct the look.





76 911s
66 912 v8
68 912 2.2 with nitrous

[Randy Webb]

I would never put a turbo in a SWB car...

After it crashes, maybe the insurance co. will spring for the new trosion tube...

[Tyson Schmidt]

Hmmmm.... short wheelbase car with Turbo engine. Let's see, if you use the '78 and later 930 trans with that, it will move the engine another 2 inches back. This will enable you to eliminate the front torsion bars altogether, since the front wheels will no longer be making contact with the ground.

Ever riden a unicycle? I suggest using two e-brake handles that independently operate each rear e-brake, so you can actually get the car to turn by pulling on the appropriate lever.

[KobaltBlau]

BUMP because tyson is funny.

Any news, adomakin?

[MT912RS]

The shock towers won't work either.

[B D]

For braking a parachute should be adequate.

[adomakin]

Update.

Ive basically been throwing thousands at the engine (hence no move on the other bits) and have come to the conclusion that a later shell would be the best option. better brakes, adequate suspension (to start with!) galvanised shell, less rot, etc etc etc. So im now in the process of finding a nice straight sc/930/carrera/964 shell to throw lots more money (that i haven't got) at.

Up the 'ammers.

Andy,

UK

[KobaltBlau]

Thanks, Andy.