But do you drive 20k miles per year like the OP?

 

I don't think I'd go 30psi front 35 rear. Seems to me that on the street that would make the front even more wallowy, and on the track you'd end up with something like 37psi front hot pressure which'd be fine, but you'd be over 45psi rear. I guess that would reduce understeer, but only by reducing rear grip and operating the rears at pressures well above where they should be.

For braking, if he's entering turns too fast, of course he should brake sooner, but I would sooner recommend more trail-braking to improve turn-in rather than straight-line braking.

 

I am doing auto crossing only and NEED greater turn in/less grip. i started at 35/35 and it slid all over the place, big times. by dropping the pressure down to 32/32 it most certtainly gained frip, but still wants to push more than I like. I have driven a friends AP1, wit the same alignmebt except more rear toe and a bigger front bar and his car tuens in much better/is more neutral. I am limited as to what I can do with the AP2 and running A-stock. I think the suggested tire pressures is the next step along with me trying to not over drive so har into the turns?????

Yes it is driven some on the street, but am chewing the tires up autocrossing, so worrying about tire wear it a moot point...

 

forgive typos... rushing an heading off to the office, sorry....

 

[QUOTE=ZDan,Jul 1 2009, 02:49 AM] I don't think I'd go 30psi front 35 rear.

 

smilin and you couldn't be more correct on "to be a very common testosterone error (it's still my one of my biggest tendencies)" and it is me to a tee. I am doing fairly well, continuing to gail skill sets and NEED to L E A R N to turn in with more grace... I have been complimented in my skill set thus far, and have had a couple of GOOD drivers tell me to brake earlier, and to look ahead. Both are my next challange!

I DO however find it a RUSH and something I have always wanted to do ;-)

again, thank you...
~Bruce

 

I found it very useful to do performance driving in the rain to learn to turn in "with grace", as you say. If you're in a nice slippery parking lot and try to hamfist the car into a turn, the front end will wash out like crazy. I definitely started to drive smoother with better turn-in after some rain driving.

Just don't do it around curbs or trees or other things you could hit.

 

Same thing goes with Winter slush. I was practicing my LFB this Winter to try and be smooth. We're trying to "train" on skinny street tires during non-season points events to improve our technique.