Visit The Dirt Forum for More Information

Author Topic:   Comparing percents
uforacing51
Dirt Freak

Total posts: 349
posted September 07, 2002 03:48 PM
I am trying some things out for next year, and the last race of the year has been cancelled anyway. I purchased a set of scales, and wanted to weigh some cars to get some baseline figures to compare to. I was accused of wanting to "steal" my buddies set up. hmmm... thats never happened before, but I am still wanting to compare.
My 79 Monte scales out at:
55% on the left
45% on the right
46% rear
47% cross
Now this worked very well the other night with a dry slick track with some groove up high and very low but the track was taking color in the middle. I am wondering if I should have more rear for a heavy track. I have been told that its hard to get much more rear on a pure stock because you don't have the jacks to move the % with. Has anyone had more rear and is it hard to get? I also noticed that the frame is bent and I already fixed it once so I am thinking the car is nearing retirment.

Jimhobby02
Dirt Full Roller

Total posts: 69
posted September 07, 2002 11:28 PM
A good car builder can get around 52 percent rear out of a metric car. No jacks needed.

uforacing51
Dirt Freak

Total posts: 349
posted September 08, 2002 12:00 AM
What is the best way to achieve this? adding more weight or what? I have heard of some people tweeking the frame and other things, any suggestions.

Jimhobby02
Dirt Full Roller

Total posts: 69
posted September 08, 2002 01:37 PM
Slide the body back. Keep it at stock height by using tubing on big washers to secure the body to the frame. Place the cage, (the four point portion) as far back as is legal for your class. Maybe leave an inch in case it moves. Move the engine mounts back to where they barley hang over the frame in the front. (metric car) A 22 gallon fuel cell mounted way back and to the left, battery box over the rear axel just in front of the cell, and left of center. Steel fuel cell can made of 1/16 inch steel. If you have any questions pm me.

flyinsquirrel
Dirt Full Roller

Total posts: 31
posted September 09, 2002 06:52 PM
i run a 87 monte carlo ss and have around 60%tail weight. car is 3400lbs. the best advise to give is make the car as light as possible when building it. EVERY POUND COUNTS. my cars is 2200lbs. with no lead. thats race ready (minus lead) with driver in. you might want to buy stock in grinder wheels and drill bits. remember "safety is always first."

uforacing51
Dirt Freak

Total posts: 349
posted September 09, 2002 09:19 PM
with that much rear, how does it handle? I am trying to find a happy meduum for a tacky, kinda heavy but not dry slick track

flyinsquirrel
Dirt Full Roller

Total posts: 31
posted September 22, 2002 11:52 AM
the track we race on is always dry slick. on a dry slick track this set up is always fast. on a tacky track have to make a few adjustments. mainly stagger and ride heights. never move lead.

Back to the Archives