In Reply to: What's the advantage of Coil-overs? posted by JeffP on March 03, 2001 at 12:43:44:
I have read everything in the archives about suspension and a fundamental question has not been answered. What is the advantage of going with coil-overs vs. new springs and shocks? I have a 98' M-Roadster that I want to lower a little bit and reduce the body roll some as well. It looks to me that new springs and shocks are in the $750 range and coil-overs are in the $1500. I would think labor would be about the same. comments/suggestions?
I think I can answer this for you. “They are the same thing.” Coil.. refers to the spring, which coils over the shock absorber. The fact is you are driving a car that comes with McFearson struts i.e. Coil-Overs. You have the option of replacing the insert shocks inside the strut assembly or repurchasing the whole assembly that came from the manufacture (this is of cores more expensive.)
I think I know the package you are talking about and it is pretty trick. The reason for the whole assembly is because they modified the strut housing with a threaded collar underneath the shelf that the spring sits on, so you can change ride height of the vehicle. Allowing you to lower the car or raise the car just a bit (probably a half inch max in adjustment). At the same time you can get the car to handle better if you can get all four corners to weigh the same so by adjusting each side slightly you can get the car to be more balanced.
(Example in extreme: if you jacked up the left rear corner of the car with a floor jack, you would ad additional load “weight“ to the right front and also to the right rear.) I have raced cars for 12 years and this will help But you need to take a few thing in to consecration, one.. your weight and the amount of fuel. Example you put the car on four scales and get all four weights perfect by its self but when its in the corner you are now sitting in it and you have a full tank of gas now it was all for nothing. If you go this rough (doing corner weight) I would suggest setting in the car and have a half tank of gas when the technicians do your corner weights.
I hope I did not confuse you in fact , if you would like send me your phone number at [email protected] and I can give you a call. I know about cars and racing but I am still learning about my new Roadster and what is available.