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15x8 +20 for track

Posted: Fri Jun 02, 2017 9:14 pm
by anastasic81
Hi, is the offset to low for a track car?

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Re: 15x8 +20 for track

Posted: Sat Jun 03, 2017 10:04 am
by Vat
I run Rota Grids 15 x 7 with +20 offset and I seem to get along okay, but the car is very much dual use. Feels a little flatter vs the factory wheels (which I use when dailying it) with the wider track and possibly a touch 'tramliny' although that really only comes out on the road.

I'm not slammed, about 110 at the front and 114 at the rear running Tein Flex Z coilovers.

It's not strictly speaking legal - the top of the tyre is inside the arch but if you plumbbob it the bottom third is a little beyond the guard. I've only had it rub a couple of times, once on a big dip on the road when I had the front coilovers set fairly soft, and the other time exiting Karussel at Lakeside.

Re: 15x8 +20 for track

Posted: Sat Jun 03, 2017 11:32 am
by manga_blue
The starting point for picking wheels for track cars is to look at the regs for the competition and class that you want to compete in. While 15x8 +20 should fit your car (probably with a bit of guard rolling) it's not permitted in quite a few competition classes.

Re: 15x8 +20 for track

Posted: Sat Jun 03, 2017 2:00 pm
by anastasic81
Thank you for the responses. Car is a social track car. I'm worried about handling and tramlining.

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Re: 15x8 +20 for track

Posted: Sat Jun 03, 2017 2:59 pm
by Magpie
Handling and tramlining are more alignment related issues.

Re: 15x8 +20 for track

Posted: Sat Jun 03, 2017 3:22 pm
by anastasic81
Offset being to wide doesn't have a negative affect?

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Re: 15x8 +20 for track

Posted: Sat Jun 03, 2017 5:22 pm
by The American
15x8 +20 is not extreme