PDA

View Full Version : Swing arm car setting down to fast



TRUEBILT
06-02-2014, 11:34 AM
Have an 08 Rayburn swing arm car. Great foward bite but lr always sets down hard and makes car jump right alittle. Should in go up on shock copression or rebound or both ?Thanks Gary

JustAddDirt
06-03-2014, 07:37 AM
go up on shock compression.
depending on what your motion ratio on the swing arm is, it cuts the shock number just like the spring rate.
if you are on say a 50% ratio, and you have a 6 compression shock, you actually have a 3 compression.

swingarm4life
06-03-2014, 07:41 AM
Try putting another 1-14 on rearend. Put one on the outside of the mounting plate on the left and right side.
This will rob you of a little drive off, but you should still have plenty. Or you could put an all compression gas shock on the rear of the birdcage if your birdcage allows for it

grt74
06-03-2014, 06:11 PM
go up on shock compression.
depending on what your motion ratio on the swing arm is, it cuts the shock number just like the spring rate.
if you are on say a 50% ratio, and you have a 6 compression shock, you actually have a 3 compression.

heres a man that knows what hes talking about,youll have to do the math

2old4this
06-03-2014, 06:33 PM
I had same problem with mine. I bumped comp. up to 700# at 5 in a sec. Problem fixed..

Matt49
06-03-2014, 07:02 PM
Trail brake

fastford
06-03-2014, 10:27 PM
if you want to do it with the brake, put a brake floater on the left rear with an aggressive pad and a good amount of angle in bar going from floater to chassis, then do what matt49 said.

TRUEBILT
06-04-2014, 06:41 AM
Going to go up on shock compression, already have two dampner shocks on it. Thanks for all info

SWITCH 625
06-05-2014, 04:01 PM
I have the same problem, but everytime I put any compression in the lr it really makes the car tight. Any suggestions?

grt74
06-05-2014, 04:04 PM
I have the same problem, but everytime I put any compression in the lr it really makes the car tight. Any suggestions?

youll have to free it up somewhere else,but if the lr is crashing down its going to be very hard to have consistant lap times

SWITCH 625
06-05-2014, 04:35 PM
I've tried it with almost all the lr out of the car, like almost straight up across the back. I'm on koni's all the way around and I tried a 30-50 bilstein, which if I'm not mistaken is a 5 comp 3 reb. It just makes the car a lot tighter, I've had m-2's on the car and it doesn't get any better.

drtrkr244
06-05-2014, 07:30 PM
If you are too tight off the gas, heres four suggestions.
1)Increase indexing of LR
2)Increase LR spring
3)Increase bite
4)Soften LF spring

SWITCH 625
06-06-2014, 09:02 AM
mine is more tight on the gas than off

rlj
06-12-2014, 01:35 PM
Move pull bar little to right have some low speed put in shock compression does not work as good as low speed