autocross suspension mods - Chevy Impala SS Forum
 
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post #1 of 8 (permalink) Old 03-01-2004, 10:18 PM
twbelieves
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I just bought a 96 SS green with a few mods already done: Eibach springs, flowmasters, 373's, new Khumo's, programmable emc. I love a great handling car and want to set up my SS fro autcrossing but don't know where to start. Can anyone help with ideas?
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post #2 of 8 (permalink) Old 03-02-2004, 01:36 AM
AutocroSSer
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Which autocross class are you looking to go towards?
post #3 of 8 (permalink) Old 03-02-2004, 01:43 AM
fro SS
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Definitely going to need a set of sway bars. F-body front and HA/HO rear is a great combination, unless you have a lot of horsepower. In that case, you may want to look into getting a less aggressive rear bar.

Shocks are a must - Bilsteins or HALs (HALs = more expensive, Bilsteins = best for the money).

Oh yeah. If you do new sway bars, you need new rear control arms (the stock ones will snap in two). BMRs will do, Global Wests are the best, and Hotchkis is somewhere in between. KAOTIC SS is selling his own design which is reputed to be excellent and economical. Check the Vendor's Area.

Oh. And you DEFINITELY need a PST Polygraphite Super Front End rebuild kit, available for $300 shipped to your door from your's truly. A set of Poly body mount bushings will firm up your ride (guess who sells those, also!).

www.powerperformancemotorsports.com
 
post #4 of 8 (permalink) Old 03-02-2004, 09:44 AM
BAD ROD
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I need to add my 2 cents on shocks. Not sure why, but everybody seems to overlook the Koni's these days. They are a good shock that at one time was the perferred shock of the Impala SS. I have had mine on for several years worth of very hard driving and they are still working great! They are adjustable (yes, they are a royal pain the butt to adjust compared to the HALS).

I guess in terms of shocks we have a good selection available. The Bilstiens are excellent, the HALS have a great reputation and are very flexible, and I feel the Koniís are equally as good. It is nice to have choices!

Mike
post #5 of 8 (permalink) Old 03-02-2004, 10:26 PM
twbelieves
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Quote:
Originally posted by BAD ROD:
I need to add my 2 cents on shocks. Not sure why, but everybody seems to overlook the Koni's these days. They are a good shock that at one time was the perferred shock of the Impala SS. I have had mine on for several years worth of very hard driving and they are still working great! They are adjustable (yes, they are a royal pain the butt to adjust compared to the HALS).

I guess in terms of shocks we have a good selection available. The Bilstiens are excellent, the HALS have a great reputation and are very flexible, and I feel the Koniís are equally as good. It is nice to have choices!

Mike
post #6 of 8 (permalink) Old 03-02-2004, 10:30 PM
twbelieves
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Konis have long been the way to go. I prefer to set up my suspension for street and autocross as one. Konis adjusted halfway used to work on the imports and my 71 340 duster that used to clobber the camaros. But 71 was a long time ago and maybe there is a better shock. I'm surprised to have to rebuild the front end. Keep the advice coming, sooner or later I will have to make a decision and then the bucks will flow. Oh my my my.
post #7 of 8 (permalink) Old 03-02-2004, 10:56 PM
bengston
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If you want to get some real advice, you might want to answer Ed's question...
post #8 of 8 (permalink) Old 03-03-2004, 01:37 AM
AutocroSSer
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Wayne speaks the truth

And no, a front end rebuild may not be necessary. Hell, depending on the class you're looking to run it may make the car illegal for the class!

Mike : you pointed out the Koni "issue" in our app. Namely, great shocks but a PITA to adjust. If they were like MOST of the adjustable Koni apps where it is a knob on the shock, it'd be different. I'm about to take out my JIC coilovers in the WRX (love the autocross handling with them, but the ride sucks for a daily driver!) and replace with aftermarket springs, Koni strut inserts (which ARE easy to adjust in that application), and camber/caster plates in front (don't need them in back with how I am set up). It should give me "9/10ths" of the handling I have now on perfectly smooth surfaces, probably AS GOOD handling on "not so smooth" (unfortunately, most of our local autocross sites are "not so smooth", and a LOT better ride quality.
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