Was reading somewhere a while ago about tunability of Saab turbo engines.

The Saab 9000 is FWD so I was wondering what RWD and clutch/flywheel etc. would be compatible and have good ratios for use in a Se7en?

I know that from '93 they had a "GM style bellhousing" which immeadiately made me think of Omega boxes (IIRC they're RWD??? Or is that wrong?).

If not Omega, then what else is "GM compatible" and had appropriate ratios?


Thanks!

James

P.S. Just thought, would an XE bellhousing be compatible so it could then bolt to a Type9?

Omega box bolts straight on.

XE bellhousing fits - Omega box does too but the ratios are horrible I reckon a HD 'long 1st' type 9 from BGH would be about ideal if you stuck a 3.21 freelander diff at the end and didn't go tooo mad with the power.....??

Would be interested in what clutch plate people have used myself as well though

Practical Performance car are slotting a SAAB engine into an old school Escort (see May 2008 editions onwards).
Post 93 9000s have a GM bellhousing and they are using a 94 2 litre Omega box. Probably the 2.5 litre V6 box has the same pattern.
HTH. Cheers, Pewe
PS Sunday Knowl Hill?

Looking at ebay pics of the Omega... that's one fat gearbox!

Omega ratios are either:

3.81:1 - 2.11:1 - 1.34:1 - 1:1 - 0.76:1

or

3.95:1 () - 2.19:1 - 1.39:1 - 1:1 - 0.85:1

which are completely unsuitable for a lightweight kit car imho no matter what diff or wheels you use! OK it's the cheap option and it would get you moving but.............

James, My 9000 Aero is putting out 305 BHP with just an ECU remap and De-catted 3" exhaust. Take a look at UKSaabs Forum and read up on the T5 Suite ECU programming. With bigger injectors 3 Bar Map sensor and ECU tweeks I could easily get well over 400BHP. Don't overlook the older 2.0L lump from the 900 classic apparently good for over 500 BHP for fairly small investment.
I will be at Castle Combe at the end of April with a bunch of Saab owners on a track day event. There will be a few high BHP monsters there that day. Saabs and their engines have been underrated and overlooked for years, which has been good for us Saab owners but the cat is out of the bag now and there are quite a few cars having Saab lumps installed because of their bullet proof tunability. I have seen MK1 Escorts, Astra's and 3 series BMW's appearing on Saab forums, all with Saab lumps pushing big BHP. Go on, stick one in your kit car, you know it makes sense.

Am I right in thinking that the "older" Saab engines used the same pattern as the old Triumph Slant 4 (given thats what it was derived from)? In which case an LT77 from a TR7 should fit..probably no smaller but gives another option for pre '93 engines.

quote:

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Originally posted by D Beddows
Omega ratios are either:

3.81:1 - 2.11:1 - 1.34:1 - 1:1 - 0.76:1

or

3.95:1 () - 2.19:1 - 1.39:1 - 1:1 - 0.85:1

which are completely unsuitable for a lightweight kit car imho no matter what diff or wheels you use! OK it's the cheap option and it would get you moving but.............

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If the xe bellhousing fits,then A-frame attached to a T5 box