Drag Racing Discussions > Front Engine Dragsters

Weight bars

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PSweeney:
Last time I ran my car it hit the bar pretty hard, to the extent it broke the wheel.  It's 138in with SBC shorty glide close coupled.  Motor is 420in SBC injected on alky, making c 600bhp and 500ft lbs ish.  Rear gear is 3.7 and it's on 33x10's

Chassis is CDS I have a full size battery ahead of the motor and a moon tank but little else further forward. We knew we'd need weight but hoped to calm it with 3.7 gear.  Before we go back out with it, I'm making a weight bar to mount in the front axle.  Lead shot is expensive so I'm smelting lead roof flashings.  So far I've got it to 22lb and the material I have will see it total 35lb.   

Does anyone have an opinion on how much weight I'll need ?.  If I need any more I'll have to fab boxes to sit in the chassis also.

rooman:
If it is hitting the bar hard enough to break the wheel it sounds as if the bar is set too high and/or the car is hooked too well. I generally like to run the bar so that the wheel is around 1 1/2-2" off the ground but that number will vary with how rigid the bar is. I would try varying the bar height and/or the tire pressure to get a bit of wheel speed leaving and stop the car from rotating hard.

Roo

dreracecar:
When adding weight to set balence, it does not have to be pretty, just safe. When the proper amount is figured out then steps can be made to clean up the looks.

 I hear the Parks has some new "Lite weight" bars available--- Ti tubing filled with aluminum shot and clamps to the frame with Mag brackets  ;D

Roger:
I'm sure they could build some nice ones; all it would take is a short phone call and a lot of $$$$:)

Ponti:
Steve Field is running about 50lb in his car, which is 148 inch, so I would try close to that best bet is have a word with him.

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