Proper settings for aligning a drag car gbody.

TNTS79

Dragway Regular
Jan 6, 2006
1,252
0
0
Illiniois
What do you mean by properly aligning a drag car?? What specs are you refering to...

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http://www.pro-touring.com/forum/showthread.php?t=54157
 

TRZ Motorsports

Frequent Racer
Nov 8, 2005
362
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0
Orlando, FL
www.trzmotorsports.com
Between 1/16" and 1/8" of toe-in, 0 deg. camber, and as much positive caster as you can get, up to 8 degrees positive
 

mean78malibu

Dragway Regular
Mar 15, 2008
998
0
0
Pittsburgh, PA and Philly Area
Thanks TRZ! I am familiar with all the specs except caster. Is there any way to add caster without changing the upper arms? Can you use the shims on the upper arm to accomplish this?
 
I have a local racer align my stuff.

He runs low 8z in the 1/4 on a stock suspension car so I defer to him.

He jacks the front of the car about an inch and you have to sit in the car while he aligns it.

Also wants the car"as raced", besides the driver being in it, fueled, tire pressure etc etc.
 

cutlass389

Frequent Racer
Feb 2, 2009
684
0
0
NC
x2 on the meat sack behind the wheel and slightly elevated front attitude.
 

cutlass389

Frequent Racer
Feb 2, 2009
684
0
0
NC
Sorry, I didn't know this was a formal affair. :oops:
 
A

Anonymous

Guest
equal caster, equal camber, set toe with front end elevated slightly. reason for the equal camber and caster is because a split in your specs is set up for crown of the road. just mind the bumpsteer toe change, i set my fathers at 1/32 in due to the massive change in toe between compressed and extended suspension.
i work at an alignment shop, and i do racecars all year round. having a meatsack in the car helps too, but under acceleration it will make no difference.
 
A

Anonymous

Guest
im saying that the caster and camber be equal from side to side, because there is no crown in the road to adjust for. try it .
 

TRZ Motorsports

Frequent Racer
Nov 8, 2005
362
0
0
Orlando, FL
www.trzmotorsports.com
SS_Sean said:
I had my alignment guy use TRZ's specs, but the best I could get in camber was 4.2, but that was with stock A-arms.
I believe you meant caster. 4 degrees positive is all these cars can do from factory. You probably wont notice much in mph, but you'll feel it at the top end, it'll be much smoother.