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Just curious what other 1st gen road race guys run for suspension?

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Just curious what other 1st gen road race guys run for suspension?

Old 12-14-05, 09:54 AM
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Just curious what other 1st gen road race guys run for suspension?

What shocks and spring weights do you use?
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Old 12-14-05, 11:12 AM
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It varies a lot depending on the class. Pro-7 guys often used to run something in the 350 front / 175 rear range. On my EP car, after going to a ISC third link and panhard I'm experimenting with much higher rates. Unless you modify the strut tubes, most racers are kinda stuck with adjustable Tokicos as an affordable racing shock. When you are ready to move upmarket there are several options at MANY times the money, like custom valved Bilstiens, and Advanced Design shocks through Ground Control I think. Shocks can make a HUGE difference for advanced drivers, but a small fraction of racers would have any idea how to set them up properly - so plan on a real development program when you get there.
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Old 12-14-05, 12:35 PM
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I just remembered I didn't specify what class! I am in ITA / ST-4 (EMRA)
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Old 12-14-05, 08:29 PM
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As Boswoj said. The higher spring rate you go, the more critical shocks become. 350 / 175 or so is a good basic setup for use with Tokico's. Anything much higher is going to require true racing shocks.
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Old 12-15-05, 08:56 AM
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Originally Posted by Boswoj
It varies a lot depending on the class. Pro-7 guys often used to run something in the 350 front / 175 rear range. On my EP car, after going to a ISC third link and panhard I'm experimenting with much higher rates. Unless you modify the strut tubes, most racers are kinda stuck with adjustable Tokicos as an affordable racing shock. When you are ready to move upmarket there are several options at MANY times the money, like custom valved Bilstiens, and Advanced Design shocks through Ground Control I think. Shocks can make a HUGE difference for advanced drivers, but a small fraction of racers would have any idea how to set them up properly - so plan on a real development program when you get there.
Great advice....

If you're just autocrossing or doing HDPE consider this front set up. www.racersareme.com
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Old 12-15-05, 08:59 AM
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With slicks I use 500#/in front and 300 in the rear
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Old 12-15-05, 06:25 PM
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Originally Posted by aussiesmg
Great advice....

If you're just autocrossing or doing HDPE consider this front set up. www.racersareme.com
that is pretty cool stuff
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Old 12-15-05, 06:26 PM
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Originally Posted by speedturn
With slicks I use 500#/in front and 300 in the rear
on a 1st gen? seems kinda high.
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Old 12-15-05, 08:40 PM
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that is about what Susko recommends....
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Old 12-15-05, 09:34 PM
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oh yeah, I run ISC bilsteins, with some spring rate testing going on.
my pro7 runs toks.
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Old 12-15-05, 09:49 PM
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interesting...
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Old 12-15-05, 10:40 PM
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Hey NP7 - (Marcus isn't it?)

Do you run modified struts with the Bilstiens, or are they just standard with perches? Do you know the model number of the shock?

Thanks - Rick
Just doing some more research.
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Old 12-16-05, 10:44 PM
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Yep, Marcus.

They are ISC modified strut housings (standard cartridge inserts, similar to a ground control setup. My spare set is still in a pile in the shop from the 25 hours, but Dave TurnerMotorsports posted these numbers :
Front P30-0104 (insert)
Rear B46-0347 (shock)
here:
https://www.rx7club.com/showthread.p...light=bilstein
I can check for sure next time I'm at the shop.
Marcus
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