i went to the ring a couple weeks ago and had my hankook Ventus V12 evo K110 tires set at 32 all around. i am lowered on coilovers. i had horrible understeer and the fronts were sliding everywhere! what are some good tire pressures to be running on a track like that? i am going again at the end of the month.

 

i just bought those! decently priced. awesome in the rain and not bad on dry but maybe it's just me but they don't seem as stable as my contis.. i run 36psi myself and with GMS1 they give me decent traction. as for track use i'm not sure what's best :/

 

was that 32 psi cold? if so lower to 27-28psi. My guess is when they warmed up you had to much pressure and couldnt get the traction you could have. Do you have a bigger rear sway bar?

 

way too low. I would try about 38 front 42 rear cold imho...and without good Powell race parts like a hardcore bar and trailing cabs understeer is a fact of life.

 

^^^^^ shameless plug

but he's probably right :P

 

haha with all my mods and my hankook rs3s i usually start at about 32 front and 33 cold but i usually race in cali in the 95 degree heat and they usually end up about 38-40 psi lol

 

I had to run 50 psi in the front on track with stock camber to keep the tires off the sidewalls (with the Contis). I run 38psi hot in the A6s with -2.8* camber. The car is pretty neutral with some camber dialed in, recommend trying that (free, open holes in strut top and bottom) before throwing parts at the car.

 

yeah 32 cold

 

that high? wow ok. you know more then me lol i am more of a staright line person. will this atleast help with understeer?

 

yeah i plan on having more camber this time. the coilovers have camber adjustment

 

Ok i gotta be missing something. iiunno if its because of the type of tires the OP is using or because its front wheel drive. But why would you want 38/42 psi cold? When those rear tires warm up not only are you almost at the limits of what the tire can handle but your creating smaller contact patches on the ground.

Me and my buddies with our Evo's played around with tire pressure at the track. I started off 35psi cold all around. Finished my run and i let my tires/engine cool down for abit. Dropped the pressure to 30psi and then my next run was 28psi cold. Every time i dropped it i was shaving about 1-2 seconds off my lap time.

 

Because the rear tires are only good for holding up the gas tank.

 

your time will drop the more you race the track because you get more and more comfortable

 

ventus v12's have pretty soft sidewalls so 36+psi would be best. i run 30 psi but thats for straight line grip.

 

i agree on that, but the reason i felt more comfortable is because the car was getting better traction, allowing me to push it harder.

 

lol so true.u drive on the front wheels only

 

At 28psi, they had to be on the sidewalls, or they weren't being pushed very hard.

 

I have wanted to buy some of your parts, but for the life of me i cant find them on your website. Do i just need to call?

 

this!

ok i will try the higher pressures

 

lmao, poor old troll





email gloria

 

i've got to say hakook ventus v12's are not as solid in the side walls compared to my old conti's.. was doing a little weave with the wheel to say hello to a friend that passed me on the highway and did the same in front of me (inside joke) and my stability control kicked in and the tires seemed pretty soft. i'm at 36psi. gotta say for the price they are nice tires but am suprised they're not even close to being as stiff in the side walls as my old tires. i'll probably spend a bit more money next time and get something that feels more solid at higher speeds.

 

yup the delta website is behind. I am travelling, will prolly get to meet Flatgod and Outamymind and Penguin Pie this trip, all good.
try email, john@powellraceshop.com
calling when I am travelling will just result in a message for me to call you, which is no problem but save your money and email for the moment cheers and thanks for considering genuine Powell Hardcore Raceparts

 

see post 22. You wont regret trying higher pressures. Remember this, you will need to go in steps of 4 psi up or down initially, you wont prolly be able to tell the difference handling wise otherwise...fyi....after you are close to what you want, then a pyrometer reading across the tire will help dial it in.

But seriously, there is so much deflection with the stock trailing control arm bushings, understeer and worn out tire ribs will be the order of the day.

When GM did/do their testing their, the threw tires at the car continually, because they could afford to...

Conti's or Dunslops would work the best imho....

 

Thanks! After my SFC's sell for my z28 ill send you a message. Ill be wanting a rear bar. Also i know these cars are already stiff but is there any plans to build strut tower braces, or subframe connectors for these cars?

sorry for the thread hijack lol.