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C900 Performance, Mods & Tuning Covers Tuning & Performance modifications for the Classic 900 (C900)

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  #1  
Old 2nd February 2006
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Default Here's an awd c900!

Hi guys.
A guy here in Denmark has made an awd conversion, and thought you might wanted to see the pictures. He uses his 300bhp car to do rally-cross events in Denmark and especially sweden. He has made EVERYTHING himself, using a Peugeot 605 diffential to transfer power to the rear wheels.
Here's pictures:








A 4-speed kokill gearbox is used, along with a home-made driveshaft to connect to the rear differential. All pictures are either of gearbox, or the rear wheel-pair. And yes, it's a track-road you see on the rear wheel aswell. Believe it's to keep it secure when rally-crossing...
Enjoy,
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  #2  
Old 2nd February 2006
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A few more:




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  #3  
Old 2nd February 2006
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Will be interesting in hearing more about how he built it, that's a project and a half, one for me for the future i think.

You can convert the Vauxhall Calibre (sp??) 4 wheel drive system to fit a NG 900, i wonder if there is a similar mod for OG 900's????
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  #4  
Old 2nd February 2006
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well I thought I'd seen it all. now I'm sure I must have done.
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Old 2nd February 2006
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Quote:
Originally Posted by SI
i wonder if there is a similar mod for OG 900's????
Only if you can find a car with a similar chassis to borrow the drive-train from. Otherwise you'd have to make it all yourself like this other guy has.
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  #6  
Old 2nd February 2006
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The best bit is that he's ditched the rear trailing arm in favour of double-wishbones.
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Old 2nd February 2006
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Yeah, he might aswell, since he was re-making everything back there anyway...

The 605 differential has the same gear-ratio making the converting possible.
Daniel.
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  #8  
Old 2nd February 2006
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Thats pretty amazing, its all independant suspension now and all wheel drive, do you know this guy personally Daniel?

He must work for a garage or have his own workshop, good on him
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  #9  
Old 2nd February 2006
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Quote:
Originally Posted by Matthew
The best bit is that he's ditched the rear trailing arm in favour of double-wishbones.
That's how I would do it- simply copy and paste the front suspension set up at the rear with fixed track rods. Worked for Audi in 1980 (only they had to make do with struts ).
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  #10  
Old 2nd February 2006
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Quote:
Originally Posted by Eric van Spelde
with fixed track rods
Fixed at one end, but adjustable at the other presumably? So that some degree of rear-end tracking can be achieved?

The MX6 guy in the link in this thread had great success bu adjusting the rear tracking:
http://www.saabcentral.com/forums/sh...ad.php?t=67514
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  #11  
Old 2nd February 2006
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Quote:
Originally Posted by ShadowWorks
Do you know this guy personally Daniel?

He must work for a garage or have his own workshop
Unfortunatly, I didn't have the time to go with two mates of mine when they visited him, amongst others. He has a few machines to make stuff in his garage, and no, he dosn't have a shop, it's just him and his garage...
Had an 8v engine standing around too, producing around 160bhp N/A:

The other guy they visited, is building his very own gearbox for his c900 using a bmw differential and buttons on the steeringwheel to change gears... I have pictures of this too, will post later in it's own thread.
Daniel.
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  #12  
Old 2nd February 2006
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This looks like something i want to do, except 2 throttle bodies and a v large plenum instead of the air filters, sweet.
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  #13  
Old 2nd February 2006
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Friend of mine built up an RWD, semi-mid engined c900 for ice racing. Did the same as this guy - cut out the floor in the hatch area and welded in the front shock towers and all that. No engine up front, just the rack, the sus and the fuel cell. He made a hole in the front of the gearbox for the shift rod and somehow made that work. Cool stuff!

What's this AWD car do for a centre diff, or how is the power split, if there is any split? Is the Pug diff a locker? How about the front? Has he broken anything in the drivetrain? I notice there's some reinforcement on case where the inner driver mounts, but only on one side.
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  #14  
Old 2nd February 2006
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This sucks.

Just install another complete 16vT motor and gearbox and suspension in the back. THEN you have AWD and a LOT of power
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  #15  
Old 2nd February 2006
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Heh, then spend some time figuring out how to synch up the gearboxes, plus finding a place to put a fuel tank...

The manifold on that B201 is interesting. Any idea who made it? The only North American source I know of for such things is MSS, and I believe theirs are welded together, not cast.

At one point, I was seriously considering going that route with my rallycar, but then I realized that a) I would still have to find a way to play with ignition, and b) buying the manifold plus two DCOE 45 Webers would run me just about as much, if not more, than just setting it up with SDS. Now 'all' I do is swap my coil pack and ECU over from the SPG to the rally car when the latter needs to run...then spend 20 minutes reprogramming it because SDS doesn't store more than one map... Time to buy another ECU! Or go with another stand alone system!
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  #16  
Old 3rd February 2006
Eric van Spelde Eric van Spelde is offline
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Quote:
Originally Posted by Matthew
Fixed at one end, but adjustable at the other presumably? So that some degree of rear-end tracking can be achieved?
Well, adjustable on both sides presumably, but not connected to a steering rack or something else that moves .
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  #17  
Old 3rd February 2006
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This is my uncles ice racer he built last year in 6 weeks its a compleat home build car even the suspension but it is a c900 16 valve turbo motor and 5 speed locked transmision in the rear of the car.
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  #18  
Old 6th February 2006
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Quote:
Originally Posted by Eric van Spelde
Well, adjustable on both sides presumably, but not connected to a steering rack or something else that moves .
Four-wheel steering anyone?
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  #19  
Old 6th February 2006
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Quote:
Originally Posted by Saab-Daniel
A guy here in Denmark has made an awd conversion, and thought you might wanted to see the pictures. He uses his 300bhp car to do rally-cross events in Denmark and especially sweden.
I remember about 15+ years ago, Anders Nordstadt built an awd C900 for use in the European Rallycross Championship. I remember seeing it when he raced it at the Brand Hatch Rallycross GP one year. I seem to recall he had assistance from the Saab factory in building it.....it may be in the Saab museum now...??
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  #20  
Old 7th January 2008
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i found this on the net a while ago, thought i might as well share it...
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