mods and bent wheels.... - Saab Performance Bulletin Board - Saabnet.com
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mods and bent wheels....
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Posted by Dean [Email] (more from Dean) on Wed, 14 Jun 2006 17:22:41 Share Post by Email
In Reply to: Well they wil be great, dudewithasaab, Wed, 14 Jun 2006 09:47:37
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As for bending wheels:

This suspension design has limited travel in the front! With lowering springs, there is even less travel. When hitting a bad pot-hole, the suspension bottoms out on the bump stop and then its the wheel working against the mass of the vehicle. With 18: tires, there is very little cushioning for the tire. Many, many, many 16" wheels get bent. 18" is crazy unless the roads are very very good. Bent 18" wheels get very expensive.

With worn shocks, it gets all the worse. If you slam the brakes and then hit a pot hole, the hard braking will make the suspension dive at the front and then when you take the hit, some of the vertical travel is already gone.

18" wheels can make your brakes look real weeny too.

If you want better handling, that is not how you should spend your money.

Mods are not cheap, but there is a sequence that makes sense in terms of cost/benefit.

Mods in this order:
rear sway bar (DIY)
maximum performance tires, 16 or 17"
steering rack clamp+brace (DIY)
koni sports shocks and new upper strut mounts * (difficult DIY)
front control arm bushings (no great advantage combining with shock work)
subframe brace (can be DIY)
perhaps different brake pads (DIY)

* perhaps lower or better springs (ask others) if roads are decent, and consider cutting back the bump stop (easy) to get more vertical travel in which the shock can absorb energy.

As you make these mods, you probably will be after more power:
Re-torque the head bolts unless you know this has been done once.
K&N 33.2663 air filter (DIY)
3" duct mod (DIY)
remove turbo compressor discharge silencer or install Viggen IC (DIYx2)
rework the TBTC to remove flow restriction (DIY)
install low restriction exhaust system (many DIY)
install MBC+A for major increase in power and fastest boost response (DIY)
install a metal piston type BPV (DIY)
switch to NGK BPCR7ES11 plugs, gap to .039 - .040"

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