XRAY - Model racing cars

hi i race on indoor carpet set up is xray carpet setup apart from 40 weight shock oil f+r ,rear shock on inner most setting 5.5mm ride height the problem is first 2 rounds i just don't have any rear grip i know you get more grip from more rubber being put down but would like more rear grip from round 1 by round 3/4 car is well set up with plenty rear grip is there anything i can change on car to get intant rear grip from round 1 ? i use sorex 28 jb tyres thanks

Please post your entire set-up sheet. This way we can find a solution to your set-up problem.

hi its the standard xray carpet set up apart from 2000 diff oil, rear shocks on inner most hole, rear camber -2, 40 weight shock oil f&r, sorex 28jb tyres thanks for any replys

You can try softer rear diff oil. 1K or even lighter oil will make the car easier to drive on-power. I would also suggest you to try front downstop 6 and rear 5. Try a softer front spring, 2.8 instead of 3. Remove your ackerman shim. Try a longer rear link on the upper bulkheads.