Autocross questions

KevinB

Any thoughts about running a bigger staggered setup vs. a square like 285/35/18's on 18x10.5 rims w/ 25mm spacer in rear? (uh oh ...)

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09 6MT MB: Int/Ext LEDs, Stillen G3 + FI test pipes + FI cat back + Stillen sways + Clutch Helper Spring

AutoX Z

It a heavy car that needs a lot of tire but it needs it more on the front. Running a staggered set-up can only result in lots of understeer. I think the trick will be fitting 315's square without having to cut/flare the front fenders.

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2013 SCCA Solo National Champion
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Shamu

Curious what you are basing this on? I have been driving prepared cars etc for a long time and well setup 370z on staggered setup is completely nueteral from what I have seen. I experience very little understeer with 295/315 stagger. I think for average ax driver staggered will work fine if you have flexibility to use differnt suspension setup than stock.

I don't think shoving a 315 under front is going to accomplish much and for people in cooler regions I'd argue solo driver will have issues with getting that much tire warm.

I will be experimenting however I don't think a well setup car on mild 295/315 stagger will see as much understeer as you think. If anything my car tends to have a little oversteer. But I base this from running mostly cool venues as a single driver. Just wish more serious ax guys were trying SP/SSM mods.

A two driver car on warm surface may in fact benefit from 315 upfront. But honestly if I go to 315 front I'm going to 335 rear.

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Grant