Drag Racing Tech - With QA1s in the rear. can you take out the bumper stops
dnkynrbk
03-14-2008, 02:05 AM
Saw this in a post and didnt know if you removed the bumper stops if this helped your 60ft. It was saying your car bounces off the supports. thanks for any info
JL ws-6
03-14-2008, 05:25 AM
Take them out. I was having mad problems with the rear unloading about 3 feet out last year, front would come up, car would move foreward a foot, rear would go down hit the bump stops, bounce off them and unload the tires, and blow them off. Couldnt' get anything better then a 10.9 out of the car with high 1.5 60 foot times. I went home, took the bump stops off, next time I ran the car it went 10.69 with a 1.49 60 foot, didn't change a single other thing.
Rip them off.
dnkynrbk
03-14-2008, 09:04 AM
Hey that is the same problem im having too. So I hope this solves the problem. With the 12 bolt it sits higher in the rear then my 10 bolt did. Did you cut the springs or I have been told to take out the rubber boot and put a garden hose around the 1st coil. Or just leave it. Running a 28 inch tall slick
1lejohn
03-14-2008, 09:52 AM
I removed my spring pads, it drops the rear 1/2'' maybe a little more. I have a 12 bolt but still running Koni sports in the rear. I have Afco's in the front, waiting to have the rear Afco mount welded on the rear. I just cut a 1.46 short time with the current set up. I 'll keep the bump stop mod in mind when I install the Afco's. Presently the car doesn't hit the stop.
JL ws-6
03-14-2008, 10:57 AM
Remove the rubber spring isolater, I just put fuel tubing over the spring to lower the back about 3/4 of an inch, front is lowered about 1.5 inches.
Definately take the bump stop off, and hit the floor with a hammer where the tq arm probably already left a small mark, because now the rear can move as much as it has to, and the floor will get in the way. If you don't clearance for it don't worry, it will take care of itself.
Old Geezer
03-14-2008, 02:05 PM
Referring to a known quote:
"Girls squat, racecars don't." Attributible to Madman??
Tune the suspension w/ the proper shock settings, etc.
JL ws-6
03-14-2008, 02:18 PM
settings are all fine, but the car has to have the ability to move without hitting stops, it's not like strapping the front end down.
heavy6.0
03-14-2008, 04:15 PM
Hey that is the same problem im having too. So I hope this solves the problem. With the 12 bolt it sits higher in the rear then my 10 bolt did. Did you cut the springs or I have been told to take out the rubber boot and put a garden hose around the 1st coil. Or just leave it. Running a 28 inch tall slick
Hey this is off topic but hope to see you at the Jake Yeates Memorial race at rogersville, mo april 26th. We are sponsoring the race and will be giving away gift certificates. See you there!!