RB6 low grip battery config/options help

[Chris Elworthy]

Hi lads,

My RB6 is hands down the best 2wd I've driven in high grip but I am finding myself being very off the pace when the track is wet or low grip. The car feels ok on corner entry but washes out badly on corner exit regardless of how smooth I bring the throttle back in.
My car is still set in the standard config with speedo at the back (Orion r10) and saddles in the middle. Is this how people still tend to run the car in low grip or is moving the speedo to the front allowing the batteries to be placed further back be the way to go?

I recently changed the rear lower shock eyelets from the kit long ones to the medium ones to reduce rear droop and get a more planted feel while running on high grip astro, would putting the standard long eyelets back on be useful in low grip- I'm not too sure on what droop does to this car.


Any info would be greatly appriciated


Chris

[Neil Skull]

Hi Chris,
If traction is low it helps to get weight back to give rear grip to the wheels driving the car forward, But if its greasy track then it will make the rear more wild. More droop will help! and just a softer set up and I guess most guys will run a higher camber link all round! I leave the pro drivers to confirm that!

[Chris Elworthy]

Thanks for that Neil, hopefully somebody else can offer some other setup advise.

I'm racing at Kidderminster this weekend for the first time which I'm told is rather slippery when cold/wet so I'm torn as what to do?

I find your comment that the weight too far back can make the car wild? This seems strange? Is it due to more of an aggressive weight transfer from back to front?


Chris

[h0m3sy]

Why not give the RM configuration a try?

[discothesnake]

Hi mate, i tried this layout and found it made a big difference. A bit more understeer but backend was planted.

[InsideLineModels]

Hi Chris,

Here are a few things i'd try.

• Short wheelbase - if you are running RB5 rear wishbones (which will help by themselves) flip them over, this ill reduce wheel base by 3.5mm ish. I run on long wheelbase (1.5mm shorter than normal short) when the wishbones are flipped. It's rare i do this but i did run it like that at the Kidderminster national as it is super slippy there.
• have you drilled the extra inside hole on the RB5 rear arm? This will help drive but also get the car into the turn quicker. I run this position pretty much everywhere.
• lowering the inner links front and back will help. I tend to vary between 2mm and 4mm on the front (4mm - high grip). On the rear I change between 2mm and 0 (0 on low grip).
• Shift weigh back - although for me if you loose to much steering you find yourself trying to force oversteer with the throttle, which can be counter-productive.
• More rear droop should settle the car down whatever the condition, I tend not to touch this much at all and i run a fair amount.

I hope some of that helps

Kev