Lowered Pics
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Joined: Oct 2001
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From: Broken Arrow, OK (Tulsa)
Car: 1990 Iroc-Z
Engine: 350 L31 Vortec
Transmission: 700R4
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I am going to get some measurements for you guys tomorrow, then maybe take the isolators out of the back and put hose in and see how it looks and measure that as well.
I went from running consistant 2.0 60 ft's to 2.2. Not sure what hurt me most, the shock change, the spring change, or the lca angle?
Spohn Adj PH
Lakewood LCA's
Eibach pro-kit springs
koni yellows
Complete list of mods
Re: Lowered Pics
Originally posted by Shaun 90 Iroc
I went from running consistant 2.0 60 ft's to 2.2. Not sure what hurt me most, the shock change, the spring change, or the lca angle?
I went from running consistant 2.0 60 ft's to 2.2. Not sure what hurt me most, the shock change, the spring change, or the lca angle?
When you lower a 3rd gen, the front and rear roll centers go down (like most cars),but a strut supension car will have a more rapid drop in the front roll center as opposed to the rear drop ewhen the front and rear of the car is lowered equally 1inch. The rear will go down a 1/2" but the front rollcenter will go down more about 1-1 1/2" (based on alignment specs)
What does this do? It increases the roll axis angle (imaginary line drawn from the front roll center to the rear roll center) The rear is higher in proportion to the front compared to where the sat before you lowered the car. With the roll axis inclined forward, weight transfer is not a previlant front front to rear on launch.
How to fix? Jegs sell a great little panhard relocation bracket for about $50 if I recall that gives you adjustabilty of the rear roll center hewight without altering the ride height of the car.
(I just posted this picture a few days ago on another post talking about Spohn products but it will work here also showing the Jegs unit)
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