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sportline or pro kit

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Old Dec 29, 2007 | 10:30 PM
  #1  
digitalrebel's Avatar
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From: Indianapolis, IN
Car: 90 IROC Z
Engine: 350 60 over
Transmission: t5 and 700r4
Axle/Gears: 3.08
sportline or pro kit

I am getting ready to change springs and shocks I have a sportline set but I was thinking of getting the prokit instead. I am also thinking that I will use the kyb agx shocks and struts. Any help or sugestions would be great thanks.
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Old Dec 29, 2007 | 11:44 PM
  #2  
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Re: sportline or pro kit

I have the sportline kit with koni yellows and I wish I would have started with the prokit instead. I don't really care for the slight rake (would rather have it more level) it gave the car and the overall spring rate is a little too soft for me.
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Old Dec 31, 2007 | 09:48 AM
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From: East Tennesse
Car: 1991 RS Camaro
Engine: L03 (want LS1)
Transmission: 700R-4 (and T56)
Axle/Gears: 4th Gen 3.23 posi
Re: sportline or pro kit

SportLines are lower but softer than the Pro-Kit. Being lower and softer isn't a good thing. Most people seem to dislike the softness of the rear springs.
KYBs are a pretty good shock at first, but from what I hear, they tend to wear out pretty quickly.
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Old Dec 31, 2007 | 03:57 PM
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Re: sportline or pro kit

I have both sets. The Prokit is on my car right now and I was thinking of switching to the Sportlines. I like the low factor but I'm hearing nothing but complaints from people who've used the sportlines. If I was to keep my Prokit but cut maybe a coil or so off the front and have the 'rake" would that be ok with the Koni yellows? I wouldn't screw too much up with the spring would I? What about doing the same to the rears?
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Old Jan 1, 2008 | 07:04 PM
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From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: sportline or pro kit

Originally Posted by Demon355
I have both sets. The Prokit is on my car right now and I was thinking of switching to the Sportlines. I like the low factor but I'm hearing nothing but complaints from people who've used the sportlines. If I was to keep my Prokit but cut maybe a coil or so off the front and have the 'rake" would that be ok with the Koni yellows? I wouldn't screw too much up with the spring would I? What about doing the same to the rears?
Steve,

Have a look at the CM motorsports springs. Kubus has them on his 91 RS.
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Old Jan 2, 2008 | 09:51 AM
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From: East Tennesse
Car: 1991 RS Camaro
Engine: L03 (want LS1)
Transmission: 700R-4 (and T56)
Axle/Gears: 4th Gen 3.23 posi
Re: sportline or pro kit

If you are talking about the pretty blue RS with the LS1/T56, I don't know if I'd run them if I was going after performance. They are, from what I can tell, V6 springs and probably not very stiff.
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Old Jan 2, 2008 | 03:40 PM
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From: Toronto, Ont
Re: sportline or pro kit

I'm going to keep my Pro kit. Remove the front isolators and give it a semi rake. My custom Y hangs a little low around the engine x-member.
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