new to mods. help needed?

[modracer18]

we have DW11 that we have raced a few times and the car is really loose in the feature we no traction. we are running on 3/8 mile big banked track that is black slick in the feature. hoping someone can give us some idea were we are going wrong. Scale numbers are Lf541 Rf496 Lr677 Rr607. cross weight 50.5 Left side 52.5 rear%55.4. its setup as a 4/4 bar with brake floater Lr with a chain on Lr. springs are Lf500 Rf550 Lr225 Rr200. shocks are Lf6-2 Rf4-12 LR8-2 Rr3-3. We are trailing the Rr 1/4''. we have a 1/2'' stagger in front and 1/2'' in back. were on a pullbar with 20 degrees of angle with 7 degrees of pinion. Car was scale with 15 gal. of fuel. wondering if we to bump up the rear % to around 57 or so we running alcohol and are we tie down the RF too much. any and all help would be great!

[drtrkr244]

Bump up the rear % as you stated and take out lead of RR. You need to get the car tight enough to be able to run 2-3" of stagger.Most race tracks turn radius' will require that much stagger.

[modracer18]

im trying to get more stagger that's been tough but I was figured we didn't have enough rear%. thanks for the help

[modracer18]

how many people are running 9'' on the front

[thinkstomuch]

is the LR 8-2 shock and Bilstein?

[modracer18]

yes its a Bilstein 2-8

[MM90]

Take some angle out of the pull bar.

[thinkstomuch]

i'm not sure but I don't know that the LR Bilstein you have can contend with the RF you are running. The valving looks stronger but I don't think it will perform for you like the Bilstein 6-3 3-6 whichever it is. I feel like the combo of LR to RF that your using is making the issue. It would be worth a call to a shock guy, I highly recommend Martin Motorsports Racing Shocks. To me everything else looks okay, just my opinion.

[powerslide]

Maybe i missed it but is the car loose on entry or exit?

[modracer18]

Maybe i missed it but is the car loose on entry or exit? its loose on entry and middle is the biggest problem

[modracer18]

MM90 if 20 degrees is to much what would be a good angle to run

[modracer18]

we also have 6'' of spilt on the jbar. 1 1/4 above the pinion. im thinking that's to much split. its a quickchange

[washeduptoo]

What tire are you running? If you can fix entry, the rest might fall in place, put a stiffer lf spring and try that. best of luck.

[powerslide]

After clarifying that you are loose on entry i think i would go to the front springs. Swap what you have on the car now. You might also try raising the idle by about 500rpm

[FlatTire]

First things first and some of the others pointed it out as well but whenever you are diagnosing a handling issue, typically the problem starts before it becomes apparent. So lets say if you were tight on exit, you would most likely go after fixing the car for a tight in the middle condition. Same thing with the issue you are having now. Correct the root cause, not the effects that typically show up later in the corner. Traction is a product of momentum, and momentum results in forward bite on exit!

-The more angle you put in the brake floater rod on the left rear, the more free you will be on entry when you are on the brakes. So take some angle out so its pretty much level. I always liked a brake floater, but only on the RR which will help keep you tight on entry. Just depends on what type of set ups you run if you need to float the LR or RR.

-Definitely lead your RR by .25" instead of trailing it .25".

-The thing about increasing rear weight is it takes traction off the front tires especially when you mount it behind the rear axle.

-On your RF shock you have a 4-12 listed. I'm assuming this is a 4comp/12rebound. If so when the car gets over on the RF in the middle, you might experience a loose condition as well as lacking a little fwd bite because of the large amount of rebound keeping the car tied down on the RF. I'd get all these split valve shocks off the car and get me a good simple standard valve base line set up first.

-Definitely swap your front spring around. Or just put a 550 on the LF and leave the RF alone.

-Another good thing to do if you can is raise your RR bottom bar on the birdcage to tighten entry. Or drop it on the frame.

[modracer18]

were running American racer kk704 tires

[washeduptoo]

Most in my area with those tires are running jbar at middle of pinion on qc and with 5-6inches of rake. I still would try stiffen the lf spring first or swap springs like it was suggested. Best of luck.

[modracer18]

ok thanks for the help everyone