I set my Falkens Zeix Z12's to 40/40 air pressure and cleaned out my hatch. While driving I found that going into those sweeping corners that my traction is at its limit and my tail just hangs out. I had to work the steering wheel alot in order to counteract the slide.

Are my tires the culprits here?

 

Drop the rears to around 35PSI and see how it does. I have found for my Accent my fronts do best from 40-42PSI, rears from 32-36PSI. I'm running Falken Azenis RT-615k's. There isn't enough weight in the rear to get a good contact patch at 40PSI on my tires at least.



Do you have a rear sway bar? That will add grip for the fronts so you'll tend to get more oversteer. What other suspension mods? I see you have a Beta swap, That should induce some understeer unless your suspension is diving pretty hard on your outside front tire due to the weight. I haven't pushed my Beta Accent all that hard, but it understeers noticeably more than my Alpha Accents.



I will warn you that all seasons are generally destroyed by Autox. I got 3 events out of my Toyo Proxes 4's before they were completely destroyed.

 

You can get temperature probes/IR guns for fairly cheap these days, try looking at cooking supply stores. The problem I found with tire pressures is that unless you know what pressure is giving you peak grip, it is just tuning the handling by removing grip from one end.



'tis an interesting topic

 

It is best to be able to go up or down, I bring a small compressor. I also usually start a bit higher than I think I should run and bleed off the extra pressure. I usually go in 1PSI increments, but I start pretty close to where I need to be now.



I do have an infrared thermometer and check my tire temps across the tread section.



You can also look at your tires and get a decent idea how appropriate your pressures are. Te heavily scrubbed area should generally be to the edge of your actual tread blocks on the tire's shoulder, but never beyond that point or your pressure is too low. You can also make lines with chalk from the sidewall to the tread face to see where the tire is contacting the ground if your tire doesn't show well on its own.

 

Cool tips man!



SCaccent, what other chassis mods have you performed? Getting all your tires working properly is important, but that might only be masking other problems.