Grip Roll

[Rocking Donkey]

I am having trouble with grip roll on a high bite carpet. I'm not sure whether it is caused by the front or the rear and what adjustments to make. The car feels good around most of the track and at higher speeds the front/rear balance is good, but if I attack the sharper, slower corners I end up on my roof.

I'm running a B2 with yellow schumacher minipins as low as I can get the back and the front adjusted so that it is level with the front. Front: Green springs associated #1 pistons and 35wt oil. Rear: Silver springs, associated #1 pistons and 35wt oil. I started with James Welshy40's setup but think the carpet has a bit too much grip for this.

Any help would be much appreciated.

Ben

[Buggy Driver]

I had the same when I tried Minipins at the front on carpet on my B4 instead of Staggers, even after cutting them and adapting the setup quite a bit.
So, if its high bite carpet all around try yellow Staggers instead, they should solve that problem instantly. If you´ll miss steering afterwards, you can alter your setup or finetune the tires by slicing the ribs. You could also do some things setupwise instead like using (more) internal limiters in the shocks to limit the travel to lessen traction roll, but Staggers would do it way more significantly. On full carpet tracks they´re usually the tires of choice and used without inserts.

[Mike Hudson]

try letting off the throttle and letting your car roll into the tight slow grippy corners then put throttle back on exiting, also try schumacher yellow compound minispikes or cut rows off your minipins, the minispikes don't have as much bite as minipins so don't tend to grip roll as much

[Belsten]

I would also run blue springs on the front

[Gayo]

Try some droop limiters on the rear shocks (washers under the piston) to limit downtravel and weight transfert.

[Belsten]

and no 2 pistons in the front

[Rocking Donkey]

Thanks for all the tips and ideas. I stiffened the car up all round going with 35wt oil and silver springs on all corners, and lowered it a bit so that the driveshafts are just below level. I've run the car at the last 2 Newbury Sunday meets and at the last on the car handled a treat. Unfortunately its still a bit rubbish at my normal Friday night club that smaller, tighter with more grippy carpet, but c'est la vie. Now my problem is that the e-clips that hold the bulkhead kingpins in place keep falling off meaning the kingpins slide backward and wishbones snap landing from the jumps. I've just put the last of my wishbone reserve stock on the car and am to scared to run it until I find some replacements!

Ben

[markwilliamson2001]

Simple Answer:

See if you can get hold of a 2nd hand B4... Should be a few about what with the recession and all. Loads of setups for it, and a few of the parts will be interchangeable from the B2.

If you like it, you could go ahead with the X6 conversion which seems very popular at the moment.

Alternatively, the Kyosho RB5 seems to be gaining popularity, and Roger Mills will keenly try and talk you into one.

HTH
Mark

[Mike Hudson]

don't think anyone will be buying a kyosho rb5 anytime soon though...! the retail price that was £170 is now £270!!!