tube chassis front strut question
#1
Junior Member
SHOW GUEST
Thread Starter
Join Date: Oct 2008
Posts: 5
tube chassis front strut question
My first strut car, picked up as a roller, Passenger side strut spring is lower than drivers (and softer), shouldn't the springs on both sides be the same height from the bottom of the strut? Drivers side is very stiff also. previous owner says all was well when he ran 8.40's but not sure if I trust him.
#2
Senior Member
DYNO OPERATOR
Join Date: Apr 2008
Posts: 504
Your description means that you have preload in the driver side. You are looking at the movable part of the spring perch. I always run them exactly the same in front and usually in the rear as well. Someone may have been trying to get preload in the suspension with the front springs. I would not recommend doing it that way. The accepted method in tube cars is to get your preload with the rear suspension. The driver side will be lower to the ground with positive preload. Your previous owner may have tried to preload without changing the rear suspension? I would put the springs in the same position on both sides and be sure that you have 1/2" of shock still available at race weight for bump travel before the rubber snuber begins to hit. You will likely need to check the rear preload after setting the springs in the correct settings so you know where you are.
Bruce
Bruce
#4
Junior Member
SHOW GUEST
Thread Starter
Join Date: Oct 2008
Posts: 5
Bruce, maybe "thanks" isn't good enough, I really appreciate the reply, It really helps when someone with experience is kind enough to share his time and knowledge to help someone out. I've googled for 2 days and couldn't get that information from anyone running struts.
Thanks again,
robert
Thanks again,
robert
#5
Senior Member
DYNO OPERATOR
Join Date: Apr 2008
Posts: 504
You are welcome Robert. You can run between 1/2" and 3/4" showing on the front shocks for bump travel regardless of front shock travel. The rears, it depends on how long the travel is in them, the front are always set to .5 to .75" when best. After pre-loading the chassis from neutral your suspension and shock tops will be at different heights, and that is normal FYI. Have fun with your new car Robert, adjusting them is 1/2 the fun of racing for some of us.
Bruce
Bruce