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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 09-09-2004, 06:39 AM   #1
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2wd to 4wd conversion

does anyone know what is required to do a 2wd to 4wd conversion?

what parts are needed and how to do it?

i'm not looking for a "don't do it, it's stupid" response

thanks

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Old 09-09-2004, 07:26 AM   #2
 
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Jeez.....you'd need most of a new drivetrain and engine, unless you could source one with a transverse engine (maybe a DSM?) ...

so...

a rear drive axle and diff (or axles if you don't do an old-school solid rear end like a Mustang, which fits)
new, fabricated axle brackets (readily available and easily welded on)
new rear suspension mounts mounted precisely (any errors would really whack out the handling)
center diff and drive shaft (this is the tricky part...)

there's probably more...I'm just going off the top of my head...)

possible area of exploration: find out if there is an available center diff that is small enough to fit with the current Saab center drive axle, enabling you to keep the front of the car stock. My suspicion is that if there was an easy way to do this, it would have been done.

So...let's say you can get this going, you'd need to seriously hop up the engine to compensate for the 25% drivetrain loss you'd see -- and that's if your setup was as efficient as production models. So if you got your 9-3 up to 250bhp, you'd show about 185 whp...which is what you started with. (check my figures on this..)

After all was said and done....you would have spent enough time and money to buy a used WRX.
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Old 09-09-2004, 08:17 AM   #3
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thanks!

i wasn't planning on doing anything, it was more out of curiosity....assuming that the 9-3 was really hopped up on power i.e. 400-500whp, it would become undriveable with a fwd system

does anyone have crazy torque steer with their car? even with my stock 9-3, i can't hold the car straight?

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Old 09-09-2004, 08:25 AM   #4
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what do you mean - undriveable??? As long as your trans holds up it's driveable. Have you seen Nordic Tuning's 420whp (i think it was) 11 second car - it's still fwd - seems to have almost no problems watching it launch.
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Old 09-09-2004, 09:09 AM   #5
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you could use the drive system out of a pontiac 6000 if you were creative. then again, you could just use the whole 6000 and drop a turbo 3.1 in there. those things can rip!
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Old 09-09-2004, 09:12 AM   #6
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those AWD Pontiacs are neat cars too - shame ya had to sell it - bet my old man woulda bought it - I had him ready to before ya e-bayed it.
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Old 09-09-2004, 09:40 AM   #7
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yes, i have seen the nordic tuned 2.5gt 9-3....and to my recollection it is not an 11 sec car, the best it ran was 12.18....anyways, by "undriveable" i mean by comparison to awd or rwd, fwd is not a preferred system for high hp to the best of my knowledge

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Old 09-09-2004, 09:52 AM   #8
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11.03 is damn near 11 seconds to me :P Watch how he handles it
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Old 09-09-2004, 10:31 AM   #9
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someone needs to do this and make a kit.... I mean an AWD viggen... could it get any better?
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Old 09-09-2004, 10:34 AM   #10
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someone needs to do this and make a kit.... I mean an AWD viggen... could it get any better?
always - once you have more - what then would you want? MORE POWER! lol I mean - if there was bolt on's to have 1000whp - there'd be someone with it regaurdless of price - u just gotta figure how much is enough....
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Old 09-09-2004, 12:06 PM   #11
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maybe if you coulf find a NG900 NA 6 with rear wheel drive, drop in a front wheel drive engine and tranny. Might be a way to link it up.....

oh by the way...did you see that 11 second Nordic...dayum that's fast.
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Old 09-09-2004, 12:09 PM   #12
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the v6 ng900's were rwd?

yea, i finally saw it, the last time i saw that saab, it was running mid 12's...apparently they made it faster
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Old 09-09-2004, 04:20 PM   #13
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Quote:
Originally Posted by saabvos
the v6 ng900's were rwd?
nope still FWD
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Old 09-10-2004, 04:58 AM   #14
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My guess would be to find a Pontiac Azteck, or Saturn Vue. I think those may have the best bets for bolting up to the chasis. You could have English folk rummage the breakers for the Vauxhall that WAS AWD It would work perfectly, but its a tricky system.
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Old 09-10-2004, 08:02 AM   #15
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okay...., okay...no rwd in the ng's...how bout a VX Lightening, or Sonet.

Maybe the new 9.2x would be a lil cheaper than stealing one of these or making one..

but "Dayum that Nordic car is fast...., still watching that video" 11 seconds...what in the world must the top end really be on a car like that. He's got to be reving higher than 7k....that's just incredible. where's his site at?
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Old 09-10-2004, 08:21 AM   #16
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http://nordictuning.com/specialproje..._9-3_2.5t.html
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Old 09-10-2004, 08:53 AM   #17
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Quote:
Originally Posted by SaabTuner
http://nordictuning.com/specialprojects/saab_9-3_2.5t.html
"what tha"

Are those stock tires too....wow. thanks SaabTuner...
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Old 09-10-2004, 01:00 PM   #18
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Originally Posted by DC_SAAB
Quote:
Originally Posted by SaabTuner
http://nordictuning.com/specialprojects/saab_9-3_2.5t.html
"what tha"

Are those stock tires too....wow. thanks SaabTuner...
wtf? I don't see anything remotely stock about that car's tires, or just about anything else.
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Old 09-10-2004, 01:04 PM   #19
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Noe Bros has a 4wd Saab (along with a Saab limo), now they are making a twin engine 4wd Saab also: http://www.neobrothers.co.uk/project.htm

Adrian~
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