2011 grt

[charlie11515]

heres my problem guys
when its tacky the car is fast, not so good in the slick,, heres what ive tried so far. 550lf 500 rf 200 lr 175 rr 80 pounds lr bite center of pinion on short bar,, (tried j bar but worse in slick); car enters good, good middle terible off. tried 550 450 on front was beter but would push middle to top of track, added more bite and was better but again cant run middle to top. tried 650 600 can run middle up but still loose, car is set up to the book, thought about lowering rr upper bar,, seems that the car likes mor left rear bite but how far can you go???

thanks for any help
charlie

[washeduptoo]

How much angle in that straight bar and is this on a qc? What tire? This is a spring behind lr and spring in front rr 4 bar car? Is rear end squared in car? Just some things to think about.

[charlie11515]

ill have to measure to be exact tonight but i think its 9 inches on frame and centered on pinion.. 9 inch rear g60 with 2 inches roll out on rear 1 inch on front. spring and shock behind on lr 4 bar. im half inch leed on lr. it seems to like more left rear but i get a push center of the corner

[charlie11515]

this is a tight quarter mile track

[washeduptoo]

How long is this bar? Is it mounted on the frame to the tire side? I would suggest trying to leaving at center of pinion but get about 20 degrees angle in it(which should be about 4-5inches of rake) and square up the rear. You might have to increase the rr spring, if it feels like its staying over on rr now, you might try that 1st. Best of luck.

[charlie11515]

the bar is 19 and a half, would takeing rake out help with center push?????

[washeduptoo]

You IMCA? Usually taking out some rake in the straight bar does help that. Something you might have tried but does work, raise the lrt bar up a hole for more rear steer. Is this an overrail or underslung car?

[charlie11515]

underslung,, dont think i can raise the lrt bar,, i think its already at 47 degrees,, yes imca

[washeduptoo]

You don't have another hole or are you concerned about the 47 degrees? If you have another hole, move it up to try it. Best of luck.

[charlie11515]

ill try it and see.. how much left rear do u run

[washeduptoo]

30-40, We don't have a GRT but we do run the straight bar, guess I should have typed that at the start.

[charlie11515]

there all close,, not that impressed with grt,, thinking about buying a shaw at the end of the year,, have you herd any news on the hoffman cars? good bad? i cant seem to get enough forward bite with 30 pounds lr

[washeduptoo]

I have a friend on Face Book that has one and they like it. You running the short pull bar? What biscuits or spring?

[charlie11515]

long pull rod, straight rod,, kept breaking spring rod

[washeduptoo]

No spring or biscuit on pull bar? That is some of your issues if I understand you correctly. If your concerned about breaking the tube your using, they make a DOM tube that will fit your need. Best of luck.