I have 15 inch wheels with falken azenis on my integra..

What tire pressures should i use for autocrossing?

I had one guy tell me to set my front to 40 and my rear to like 55

?

 

HAHAHAHA the tire can't even handle 55 psi.

um go 35 or 40 azenis don't heat up 2 much at an auto-x. at a track I would say 29 or 30 for the azenis. also you may want front and rear at different psi depending on how its handling.

 

Yeah, i thought that idea sounded kinda stupid. Of course i didnt say anything, just nodded.

Should the back tires always be at a lower psi?

 

I run 35 front / max PSI in back to get the back to rotate a little more; in an EG though.


works for me.

PS: A quick search brought this interesting thread up:

https://honda-tech.com/zerothread?id=168024

Enjoy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoltonGSR &raquo;</TD></TR><TR><TD CLASS="quote">Yeah, i thought that idea sounded kinda stupid. Of course i didnt say anything, just nodded.

Should the back tires always be at a lower psi?</TD></TR></TABLE>
depends on the car and the feel, i like the car to rotate more, thats why more in the rear for me. See how it does out there, and adjust accordingly.

 

I run 35-36 for auto-x all around but I run a stiff rear-end to get my back end to come around.

 

i run about 40 front/back then adjust based on the course or if you're getting more over/under steer than needed.

 

On my ITR, using 15x7 rims and Azenis for AutoX.
I like to set it cold at 36-38front and 39-41 in rear depending on ambient temps.

They will then heat up another 2 or 3lbs on there own after that.

 

GSR, but running the wrong sized tires.
RT-615 Azenis 205/40-16
32/36 psi cold for the first run.
34/38+- afterwards, allowing the rear to gain pressure if I want more rotation, reducing it if I'm having issues keeping the tail in check during slaloms.

I just used the chalk method to find the minimal pressure to not roll over onto the sidewalls. 34 psi hot is all those small tires needed. With 205/50-15 RT-615 Azenis, I needed 36 psi up front to avoid sidewall rollover.

 

Thanks for the replies..

So im guessing the higher pressure in the rear is to help bring the tail around in tight corners?

Where do i get chalk?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoltonGSR &raquo;</TD></TR><TR><TD CLASS="quote">
So im guessing the higher pressure in the rear is to help bring the tail around in tight corners?</TD></TR></TABLE>

Yes, though running low pressure can do it as well. Some people even claim that low rear pressure provide a smoother break away than high pressure does, when you slid the tail.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoltonGSR &raquo;</TD></TR><TR><TD CLASS="quote">
Where do i get chalk?</TD></TR></TABLE>

A chalkboard. Staples carries it. White shoe polish works as well. Maybe find some kids playing Hopscotch and steal their chalk?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TunerN00b &raquo;</TD></TR><TR><TD CLASS="quote">

Yes, though running low pressure can do it as well. Some people even claim that low rear pressure provide a smoother break away than high pressure does, when you slid the tail.

A chalkboard. Staples carries it. White shoe polish works as well. Maybe find some kids playing Hopscotch and steal their chalk?
</TD></TR></TABLE>LOL

I think ill try 35 front 40 rear next time...

 

I know several people who have run above the max tire pressure label on the side. That number is fine as long as you don't drive on it for more than 30 mins or so.

On my 00 civic Si which should weigh about the same I ran 42f and 38r. And adjusted the rear pressure for more rotation or less. I also had Koni Yellows, Ground Controls, and Comptech 22mm Rear Sway bar/tie bar. Run the front shocks at full soft and rear shocks about 1-1.5 turns from soft.

 

So for example lets say i ran like 38 Front and 45 Rear..

When i take tight corners my tail will actually slide?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoltonGSR &raquo;</TD></TR><TR><TD CLASS="quote">So for example lets say i ran like 38 Front and 45 Rear..

When i take tight corners my tail will actually slide?</TD></TR></TABLE>
Its possible. Why I like it though is to help induce lift oversteer. It is alot easier this way IMO. When you learn to steer with your throttle, your times will improve.

 

I adjust my tire pressure so that I am using the most of my tire possible, I let the suspension take care of rotation.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoltonGSR &raquo;</TD></TR><TR><TD CLASS="quote">Where do i get chalk?</TD></TR></TABLE>

In the school supplies section of your local Wal-Mart or Target. It's really cheap, like 50 cents.

 

If you're running Azenis, do the complete opposite in the rear. Run like 38 front and 28 rear, and go from there.

Lower pressure in the rear still allows the rear end to break away, but it does so much more gradual than what high pressure does.

Try it high if you want, but I think once you go low pressures in the rear you'll like it a lot more. If 28 isn't low enough, then do 26, 25, etc. I wouldn't go much lower than that, though.

If you need to go to the far extremes, then I recommend changing your suspension setup (springs, swaybars, etc). Tire pressures are for fine-tuning, not completely changing your handling characteristics.

I've been autoxing an Integra on a mix of street tires for over 10 years now...trust me on this.

 

Todd00 aren't you concerned with the tire rolling off the bead at those lower pressures?

 

BEad rolling off isn't going to happen, maybe at 5psi.

For my GSR I personally run exactly what Todd said.....36-38ish in the fronts, 29 or 30 in the rear. With 500lb springs and a 23mm rear bar...I get all the oversteer I want, and the only way to negate it a bit for some of the more slippery asphalt courses is to lower the rear....I learned it from several national competitors using almost my exact setup

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dyingwish &raquo;</TD></TR><TR><TD CLASS="quote">BEad rolling off isn't going to happen, maybe at 5psi.

For my GSR I personally run exactly what Todd said.....36-38ish in the fronts, 29 or 30 in the rear. With 500lb springs and a 23mm rear bar...I get all the oversteer I want, and the only way to negate it a bit for some of the more slippery asphalt courses is to lower the rear....I learned it from several national competitors using almost my exact setup</TD></TR></TABLE>
I'm "game" to give it a shot at my next non points event but I have seen tires roll off with about 20lbs or so at the autox before. Non of them where Azenis but, still.

 

I'm not doubting it COULD happen, but I seriously doubt it. I figure with Azenis the super stiff sidewall and relatively slow speed it's a tiny chance. Now that I said that, someone is going to roll one completely off the rim

 

My freakin' azenis are only 3 months old with about 4000 miles on them and been through 2 autocrosses and the fronts are already at the top of abe's head when i measure with a penny while the back are at his ear... WTF.. Are these tires THAT soft???

 

No, you alignment must be way off, either that or you are seriously overdriving the car....work on smoothness over all-out throttle pummeling

I get 50 runs minimum out of my Azenis, and I cheap out and purchase take-offs.

 

Well... ive done 26 runs so far...

Last time we had a small course so we did extra runs...