Need more rear "stick" Options

[yeahmag]

So, Evan and I are getting closer and closer to dialing in the car, but it still is a bit rear traction limited. We saw an improvement in predictability, but maybe not more absolute grip when moving from 225lb to 300lb springs. We certainly carried the inside front wheel less and it never snap oversteered...

I'm already very low in the rear, but could use some more camber I think. The Hoosier A7's love camber... I'm also considering a hair more toe in. I'm currently at about 1/8" total toe in and probably get a bit more.

Current basic setup:
Raised spindles - 19mm
Rebel Racing Front and Rear (teflon) bushings
Camber plates
21 mm torsion bars
21 mm front sway bar (set fairly stiff)
300lb rear springs
Koni Yellow rear shocks
Bilstein front shocks

Alignment:
Front:
2.2 degrees camber
6 degrees caster
0.13 degrees toe OUT
Rear:
2.4 degrees camber
0.13 degrees toe IN

I know this is a fairly unconventional set up, but it has been slowly built up and has proven itself to be VERY FAST in the rather large POC/PCA courses we have down here.

For example:


https://www.youtube.com/watch?v=WM72u_fqmX8


Is there anything I'm missing short of an LSD for picking up some rear grip?

[brilliantrot]

Doesn't really fit into the "budget" but I think a good set of custom valved shocks for the rear would help a lot. (front shocks are custom valved Bilsteins from Erik Madsen's 914-6 EP car before he went to Ohlins).

Running off the shelf Koni Sports just can't provide enough rebound dampening for 300lb/in springs. Cranking up the knobs on the Koni's the last outing made the rear grip issue worse which says to me that the springs are providing plenty of stiffness but whatever the bump to rebound ratio Koni uses when you turn the knob on the single adjustable shocks isn't working for the stiff springs. Running the shocks on full soft with triple the stock spring rate has me thinking that's an area of improvement.

But the car is fast and fun so maybe we should just keep feeding it tires and keep the bolts tight and focus on the driver mods..... that's where the big gains are anyways.

-Evan