Thanks for the replies. I extracted many of the questions and here are they details.
Ok, for one what kind of QA1 coilovers are you using? Did you just get them "off the shelf"? or were they built for YOUR car? What spring rate are you running on these coilovers?
They are off the shelf parts. I used HAL-GMP3350-3 which is spec'd below.
Suspension Height Adjustment Stock
Coil-Over Kit Position Front
Recommended Front-End Weight 1,701-1,900 lbs.
Shocks Included Yes
Adjustable Valving Yes
Internal Design Twin-tube
Gas Charged No
Number of Valving Selections 12
Shock Body Material Aluminum
Shock Body Finish Clear anodized
Bushing Material Polyurethane
Bushing Color Black
Coil-Over Springs Included Yes
Spring Rate (lbs/in) 350 lbs./in.
Instead of changing your pedal ratio, why not use a proportioning valve? Or do you know what size the piston is in your MC? You know one of the issues you could be having is, the MC piston might be a little to small, and creating to much pressure when you step on the brakes, making your brakes to touchy.
I have an adjustable proportioning valve for the rear but the issue is that the pedal is too stiff. The MC has a 1 1/4 bore off an astro van and I have an extra MC sitting around off an S10/Regal/Malibu that has a smaller bore. Based on what I was reading I beleive the smaller bore makes the brake less touching. For some reason I always get confused with the efffect of MC ratio on the brakes.
No offense but, if you are not well verced in suspension set-up, you are just going to make you car not fun to dirve.
I agree completely which is why I'm asking the questions now. Before I start buying all new stuff I'm hoping a little advise on my current mismatched parts will point me in a better direction.
I agree, look to matching your spring rates up first. Being QA1's I'd assume the standard 350 lbs spring.
Most likely coming down on your bump stops and unloading the rear end.
If you are serious in performance stiffen up the subframe and look into a different spring and shock set up. Rear should be fine.
Support down bars for the front, cross bar right above the sway bar and weld up your subframe seams.
I'd like to see a video of your runs.
I'm also thinking the light coilovers aren't helping me. I have the subframe fairly stiff but have not welded the seams as of yet. I did add some down bars and also welded in a supprt bar near the sway bar.
I have some video but they didn't turn out well at all and you can't really see what's going on. I wish my Replay XD had a video screen so I could test in advance.
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