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Track tire recommendations for 90 GXL/suspension tuning

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Track tire recommendations for 90 GXL/suspension tuning

Old 11-05-07, 11:09 PM
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Track tire recommendations for 90 GXL/suspension tuning

I'm just about done with my Yokohama AVS ES100s and am looking for a set of tires for the track. Suspension setup is tokico 5 way adjustables, ground control coilovers and eibach springs. Fenders are rolled and camber plates in the front.

Shocks are set at 3R/5F. Camber is 1.7F and 2.7R (camber kit coming soon). Front coilovers are raised all the way and the rears are lowered a few threads. Wheels are 16x7s and I'm currently running 205/55/16s. I want the stickiest tires for my money (don't care about noise/comfort/rain/snow/etc) for hard street driving and autocrossing.

I've heard good reviews about the Falken Azenis RT-615, but they only make them in 225 50 16s, would I be able to run these tires without a problem? Any other suggestions?

Any advice on the suspension setup is also welcome, I'm still learning at this point and figured this would be the best place to get advise. I'm still dialing out a lot of oversteer, would less camber in the rear solve this?
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Old 11-05-07, 11:14 PM
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225 / 50 / 16 on a 7.0" or 7.5" wide wheel is a good set-up.
Offset from +30 to +35 should be good.


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Old 11-06-07, 12:53 AM
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You say it's for track use, then you say street and autocross, what is it? It seems like you're asking for an all around summer performance tire. The Azenis are very good at that and are easy on the budget. Kumho MX's handle the heat of track abuse better and will last a little longer, but are slightly slower at autocross, same sort of story for the Hankook RS2's, either one is also a good choice. There's a new Toyo tire coming out, the R1-R or something like that, apparently meant to be the king in street tire autocross competition, then there's the current best tire, the Bridgestone RE01R, a little more spendy though.

If it was a pure track or autocross tire/wheel I'd say go for some light 15x8's and some 225/45/15's as you'll get a gearing and height advantage.

As for setup, you'll need less rear camber in the rear, and probably more in the front. What are the spring rates and what sways are you using? Less rear camber will probably make for more oversteer, and more in front will definetely do that. Try disconnecting the rear swaybar, that's common with coilovers depending on the spring rates.
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Old 11-06-07, 07:16 AM
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Private tracks I guess you could say, I said track to give an idea of the abuse the tires would be getting. I'll probably start taking classes and HPDE's at Summit soon though. Looks like I'll be going with the Azenis, thanks for the info. No idea what the spring rates are on the eibachs but the sway bars are stock, as are the suspension bushings. I have a friend selling racing beat sways with adjustable endlinks so I'll be buying those soon and I'll see how that feels. With the azenis I'll try running a little over 2 degrees in the front and raise the rear coilovers a bit.
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