Originally Posted by dyuyeno

I certainly am no expert in suspension setups and would certainly prefer to stay out of the line of fire in any ongoing pissing contests... but would add that I am a very satisfied customer of Robi, having driven to S Cal to have Robi install his budget setup. Has transformed the handling of the car.

I recently did a track event at Thunderhill in N. Cal, where Randy Pobst (very accomplished racer for those who dont know him (www.randypobst.com)), was a guest. I had him take me for some laps around the track in my evo, and he had nothing but good things to say about my suspension setup. He was very complementary and "wouldn't change a thing". I doubt he was just being polite either, since there were several drivers there who's suspension setups did not receive such good reviews.

He was crazy fast in my evo, and if there were major deficits in the suspension setup, I think that his driving would have brought them to light.

just my 2 cents.

Originally Posted by john@rre

I am talking about EVO suspension, not a hypothetical description. EVO suspension when one is talking about the stock dampers has only 5.5 inches total travel, 3.5 inches in bump from ride height, and 2 inches extension.

The bump stop is 2.375 inches in height, which gives an EVO 1.125 inches of suspension travel uneffected by the spring rate of the bump stop itself.

Lowering the car 1.77 inches by using the Espelir GT spring in front results in only having 1.73 inches of bump travel from metal to metal contact, This means one must shorten the bump stop, which will increase its spring rate and ruin the progressive nature of it.

With lowering springs one will be compressing the bump stop at all times in compression, as EVOs have over 950 pounds of weight on either front wheel with the vehicle parked, which makes the reality of the situation being bottomed out all of the time.

Plus increasing the spring rate gives the shock much more stored energy to deal with, which results in poorer ride quality especially on the highway. Add that to the fact the stock shocks are extremely prone to fading (with stock springs!)on the race course makes resolving the lowering spring question extremely easy.

The percived performance increase on track you are giving to lowering springs is more of a function of the progressive nature of the production bumpstops, and an EVO with lowering springs will spend the vast majority of time with the suspension fully compressed onto the bumpstops.



Thanks for your opinion, but I think the wheels need to move up and down for best performance and ride quality.