Left side heavy

[Bubstr]

We aren't talking about moving weight. We are talking about static weight.

All weight is static in the garage. We don't race in the garage. When you race you have forces applied to that weight. The difference of 2 to 10 inches up or down can make you a hero or a zero on side bite, not to mention forward bite. There is a relationship between roll centers and center of gravity height for side bite and your asymmetrical instant centers and center of gravity height for forward bite. It will determine if you push or are loose. It will not only effect your forward bite but your rear steer. Saying low weight and high weight are the same is like saying all girls are the same. I thought so, till I had a second to compare her with.

[junebug]

All weight is static in the garage. We don't race in the garage. When you race you have forces applied to that weight. The difference of 2 to 10 inches up or down can make you a hero or a zero on side bite, not to mention forward bite. There is a relationship between roll centers and center of gravity height for side bite and your asymmetrical instant centers and center of gravity height for forward bite. It will determine if you push or are loose. It will not only effect your forward bite but your rear steer. Saying low weight and high weight are the same is like saying all girls are the same. I thought so, till I had a second to compare her with.

I agree that all of these things effect the way the car drives on track...but when we setup a car up we have to use static loads for our baseline since 99.9% of the world can't afford a shaker or a pull down rig....itd be way better if we did have these available...but until they are readily available we have to use static loads in the shop...and use the on track feel as our pull down rig to test roll center heights etc

[Bubstr]

Ok would you like a way of measuring this cheaply? Here is a link to A site by Billy Shope, An engineer and one of the original Ramchargers in drag racing. This is called a traction dyno but the same physical laws apply to side forces. Maybe it's something you would like to mess with, maybe not. Billy is an old acquaintance and he said it would work for side forces just as well as front to rear.

http://www.shopeshop.org/contentsDrag.htm

[Egoracing]

Rims Rims Rims.....We use different left and right side backspacing on Asphalt IMCA cars some are designed for 3"s all the way around some 2" on right 4" on left its good for 2% more left so check and see what the car is made for first. and check all your control arms and track widths compare it to the chassis centerline...If you need to scale it one wheel at a time

I was thinking that something may be off with the wheels also, wrong ones on wrong side would really screw up the left %. Also wrong A-arms on the front and rear end wrong for the car or in the wrong location.

[crateracer16]

I was wondering maybe about my front a arms. I have a chevelle stub and the a arms I got take the small (1.9 press diameter I think) ball joint. All the other chevelle a arms I've seen take a bigger ball joint. Is there a good way to tell? They bolted right up and look correct though. Thanks guys

[setup479point2]

Have you gotten your tape and measured anything yet ? Guarantee you measure both cars you'll find your problem.

[crateracer16]

Tomorrow ill measure.will having a 9" in one car and a qc in this one change much? Got stuck with mandatory overtime all week.

[setup479point2]

Tomorrow ill measure.will having a 9" in one car and a qc in this one change much? Got stuck with mandatory overtime all week.

Yes it makes a difference , quickchange is heavier, but, am not sure how much . My guess is 35 lbs.

[Sportmod Rookie]

Why not call BMS? 785-527-5080

[crateracer16]

I've called bms and really didnt get much besides put some weight here and then try. I've been in contact with another ,awesome , guy at close racing supply(who sells bms) and he's sending me some different setup sheets with all the measurements I need.

[racing_kid]

with the bms we have we get horrible support from bms, im guesing you have to buy A brand new bms to get any kind of good support.
sorry to change the topic but whats a good way to get ahold of the guys at close racing supply ?

[crateracer16]

Call Joel smith at (814) 225-3250. He is an awesome guy!!!

[rubbinsracin]

i live within a hour of BMS and alot of guys are going away from them, partially from the troubles the owner got into and now that this other kid runs it it has gone down hill as far as support....lots of guys around us that used to be huge BMS guys are now going to JET Mods...and man are they fast

[crateracer16]

Ya I called bms directly and I played hell just getting someone on the phone. But call Joel at close racing and he will spend all day on the phone helping you. He knows all the different years and thier different characteristics.

[emod03]

if u have a bms work with joel he has helped me aton over the last 7 yrs... knows alot and isnt afraid to help out. great guys to work with.