choosing a tire size. HELP!

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Jul 5, 2020 | 11:17 AM

GM DR

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Staging Lane

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From: Toronto

choosing a tire size. HELP!

Hey Guys need some help in choosing wheel for my 2002 Camaro SS SLP, so I am thinking of 275/30ZR19 tire size all around, oh yeah I will be lowering the car with coilovers as well. Has anyone run that size of wheel and if so can you please send so pictures?
Thanks

Jul 26, 2020 | 11:55 AM

BandDirector Blk98ZM6

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From: Macon, GA

Quote:

Originally Posted by GM DR

I ran a set of 275/30/19's on stock C6 19x10's all the way around and was lowered as well. WORST RIDE I'VE EVER HAD! I couldn't get traction with the 30 series tires, AND every bump shook the whole car violently. Now granted, I was on Eibach springs at the time, and that may have had something to do with it too...it got to the point I didn't even want to drive the car any longer. It took me about a year to save up to step back down to 18" rims, and change over to Strano/Koni lowering set-up and I got my ride and handling back. Going to a 275/30/19 tire was one of 2 major mistakes I've made with my Z over the years...the other was running a set of LT headers, untuned, which I credit, at least partially, with costing me my original LS1 motor.

It did look good, but it truly wasn't any fun to drive. I'm actually back down to 275/40/17 these days because I believe it's the best tire size for street/drag/autocross on the 4th Gen F-Body. I've been on the stock 245/50/16's, 3 sets of 275/40/17's, 2 sets of 275/35/18's, and one set of 275/30/19's over the years with 7 different sets of wheels, so I've got some experience in this area...

Jul 26, 2020 | 12:15 PM

Bspeck82

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Quote:

Originally Posted by GM DR

You can but it looks goofy on these cars. I wouldnt go bigger than 18, 17s being a good balance of looks and ride quality.

Jul 26, 2020 | 01:30 PM

GM DR

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Staging Lane

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From: Toronto

Thanks for your input on this. So I am thinking now to run 275/35ZR18 with Ground Control coilovers instead. Do you thing that will be better for a 4th gen?

Thanks

Jul 26, 2020 | 03:05 PM

BandDirector Blk98ZM6

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From: Macon, GA

Quote:

Originally Posted by GM DR

Thanks for your input on this. So I am thinking now to run 275/35ZR18 with Ground Control coilovers instead. Do you thing that will be better for a 4th gen?

Thanks

Yes. Much better than a 30 series 19! On hard launches, I do get slightly better traction with a 275/40/17, but the 275/35/18 only rides slightly rougher than the 40 series 17...

Jul 26, 2020 | 03:23 PM

GM DR

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Staging Lane

Joined: May 2013

Posts: 95

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From: Toronto

Quote:

Originally Posted by BandDirector Blk98ZM6

Yes. Much better than a 30 series 19! On hard launches, I do get slightly better traction with a 275/40/17, but the 275/35/18 only rides slightly rougher than the 40 series 17...

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I must likely will not be racing the car will be driving it on the streets. My car get about 30 to 60 miles put on her a year. This year looks like 0 lol I am updating somethings on it.
How low is your car 1.5"?

Thanks

Jul 26, 2020 | 08:53 PM

SAPPER

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From: Halfway back on the Highway to Hell...again!

If going with coilovers, I'd suggest 18s. My sons car is on 18x10.5, 315-30-18 all the way around with Viking DA Coilovers. Fronts required a 3/8" spacer. I used the same on rear and had to do some massaging to hump in wheel well. Tires are flush with fenders and performed excellent. Well enough for him to do very well at LSFest AutoX.