Weight transfer is good.

[DuceAnAHalf]

Finally getting around to removing the cut PI coils and replacing them with stock springs. Also going to rebuild the lower control arms (bushings and balljoints).

Even with the 90/10 shocks i cant get any weight off the front and onto the rear. With 20PSI in the tires im spinning off the line.
Hopefully now ill be able to cut a 60' faster than 1.97.

[turbo2256b]

What tires are you running?

[mrltd]

325 BFG drag radials

[DuceAnAHalf]

Ive got the tire thats not a problem. There are cars running 7's at nearly 200MPH on the same tires.

Its just that my front end never rises due to the short stiff front springs.

[turbo2256b]

Did you ever try running more air in them.

[DuceAnAHalf]

Did you ever try running more air in them.

i tried 35, 30, 25, and 20. Best time to date is with 20PSI.

[Blaze86Vic]

Generaly you run pretty low PSI in drag because burnout increases PSI a lot. I have not uncommonly heard 12psi.

[mrltd]

Not that much. Radials are tricky because of thier construction. Low pressure is to soften the shock of the launch.

[DuceAnAHalf]

Ive heard of guys running these same tires as low as 15. I believe BFG reccomends no less than 12 or 13.

Bob has a smaller tire, a lot more gear (4.56 vs. 3.55), a lot more stall (IIRC about 4500 vs. 2600), more power(300 vs. 240) and similar suspension (he's got stock shocks, ive got 90/10s), his car leaves harder than mine (damn near pulls the wheel), but we have similar 60' times.

[mrltd]

His used to pull the wheel...on old ass cheap street tires. I've got pics.

Wierd that both of you have similar 60's, with that much difference in setups

[85crownHPP]

make sure to document the controll arm bushings/ ball joint replacement i need to plan

[DuceAnAHalf]

make sure to document the controll arm bushings/ ball joint replacement i need to plan

im either gonna melt the bushings out or use the 12 ton hydraulic press, and im gonna press the ball joint out.

[turbo2256b]

Ive heard of guys running these same tires as low as 15. I believe BFG reccomends no less than 12 or 13.

Bob has a smaller tire, a lot more gear (4.56 vs. 3.55), a lot more stall (IIRC about 4500 vs. 2600), more power(300 vs. 240) and similar suspension (he's got stock shocks, ive got 90/10s), his car leaves harder than mine (damn near pulls the wheel), but we have similar 60' times.

I think BFG recomends 12 to 20 at the strip. Are you and Bob close enough to try each others tires? Bob might need just a little less gear to improve times and you a bit more. Thats asuminng by smaller you mean diameter.
Are you running a front sway bar at the track? If so disconect or remove it at the track it usualy helps. Havent had enough power in one of these boxes yet to see how the rear suspension reacts to a launch. I suspect the rear pulls away from the pavement causing the rear to squat like a stock mustang. To plant the rear tires properly you should see the rear and the front both rise. Whin this happens properly the rear is actualy forcing the tires into the pavement pushing the rear of the car upwards. Sometimes to do this requires different rear control arm geometry and longer shocks. Longer shocks so they dot top out on launch. About 40 to 45% of the rod showing. The Chevs use anti hop bars Mustangs what were the South Side bars to accomplish this. Old Mopars usaualy launch well due to there rear spring mounting locations. I made some mods to accomplish this on my 84 Stang made a big differance on traction road race, street and strip. In fact it got so good the clutch realy needed an up grade to handle it.

[DuceAnAHalf]

I believe Bob has same height but narrower tires. I think my tires would hurt him since they weigh so friggen much (about 75#s each. wheels are around 35 and tires are about 30, i really need some rear pro-stars)

no front sway bar, police rear bar, 50/50 rear shocks, boxed control arms, 165s on a 15x3.5" Pro-star for front tires.

Here is an older video. same suspension but stock shocks, but the old AOD tranny. The rear squats a little but nothing from the front.

http://www.supermotors.net/getfile/267916/104_0479.avi
http://www.supermotors.net/getfile/267936/104_0483.avi

[turbo2256b]

I believe Bob has same height but narrower tires. I think my tires would hurt him since they weigh so friggen much (about 75#s each. wheels are around 35 and tires are about 30, i really need some rear pro-stars)

no front sway bar, police rear bar, 50/50 rear shocks, boxed control arms, 165s on a 15x3.5" Pro-star for front tires.

Here is an older video. same suspension but stock shocks, but the old AOD tranny. The rear squats a little but nothing from the front.

http://www.supermotors.net/getfile/267916/104_0479.avi
http://www.supermotors.net/getfile/267936/104_0483.avi

Too bad my Ansen mag (real mag) wheels are for a chevy bolt pattern