[Daniel_Mc]

emmvette,

Before getting into this let me just say nothing beats seat time and a fresh set of tires and pads. Now as far as coilovers I have been running DRM Coilovers on our 89 since 05 or 07 (can’t remember offhand now..) Your question leaves a lot on the table but I will answer the best that I can. The primary use of our 89 is HPDE and TT events and the coilovers do great in this. Do not expect to put them on and be 10x’s better… The car needs to have a balanced set up. Along with the coilovers I would strongly recommend fully poly bushings, different sway bars (Front 30mm solid some like a 32mm solid however my experience is this is a bit much bar and it causes a push, rear depends on the track and driving style) adjustable end links to take the preload out of the bars and have the cross weighs adjusted with drivers weight and ½ fuel coupled with an aggressive alignment (C4’s like camber). This will get the car to handle the best with the new system. Also the DRM trailing and camber brackets help but are NLA. This before mentioned set up is what I am running for the most part and have had very positive experiences with it. Back around 08 or 09 a good friend and fellow racer was running his T1 C5Z with me at TWS and the 89 hung with him without any issue in the corners. Add a good set of brakes (Not the C5 “upgrade” mess) and you’ll be able to run the car hard without fade or drama. The coilovers when set up properly will allow you to have a very neutral, predictable, balanced, and fun car. You can trail break or throttle steer just as with the stock system. If you have ever noticed if you are going through a corner in a C4 and have it under load that the rear is somewhat unsettled if you hit a bump or rise in the road? This will really take the unsettled feeling out and the car will be more planted.

Autocross is about the same however I do not do this much and do not feel comfortable commenting on this. I will just say what I have noticed the times I have done this in the 89. I have WAY too much bar for the low speeds and have a push. But overall the car handles very well. If I went with a smaller front bar and floated the bar I’m sure the car would do better. Same for the rear I have too much bar and if I backed it off the car feel/handle better. Or at least I think LOL…

As far as the street I like a firm ride and I contribute this to my shock set up not the coilovers. I have really not noticed a better or worse ride under normal driving conditions with or without the coilover

-Daniel