How big are you tires?

Discussion on wheel & tire issues
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greasychevy
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How big are you tires?

Post by greasychevy »

Im about to pull the trigger on some BFG KDW2s. I have been running on the M/Ts and they getting worn out, and i need some street tires. Anyway Im about to order 275/40/18s anyone have tires that wide on their car yet? im hoping they will clear...
2011 9c1 Hugo Blue
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elc32955
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Re: How big are you tires?

Post by elc32955 »

Sorry.... still running the stock RSA's here....
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95_9C1
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Re: How big are you tires?

Post by 95_9C1 »

I had an idea of widening a set of 9C1 steelies to 10" and throwing on a set of 295/40R18s ...

Still need to take some measurements to determine wheel offset
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The Tech
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Re: How big are you tires?

Post by The Tech »

So how wide can I make the stock steel wheels for the back of the PPV for special occasions. I live 2 miles from the local 1/8th mile track and would like to bolt on some bigger rears at home and drive over to make some passes on Test and Tune nights. I now have four extra stock wheels so I was going to widen a pair for mounting Drag Radials.
2011 Alto Gray Caprice PPV 9C3, Kooks Long Tube Headers, Kooks Drag Cats and Crossover, Solo Axle Back System.
1996 DGGM Impala SS
1995 Caprice 9C1 red over white
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leadfart
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Re: How big are you tires?

Post by leadfart »

I wouldn't widen them at all. MT DR Street II's, 265/40/18, fit great on factory rims. They are almost the same height, slightly shorter, and require no adjustment for speedo or mph, and shift points. I can hook on a good track with my blower motor, should be fine for mild NA setups. :mrgreen:
Bob Dannelley
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The Tech
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Re: How big are you tires?

Post by The Tech »

Thanks Bob, I may go that route.
2011 Alto Gray Caprice PPV 9C3, Kooks Long Tube Headers, Kooks Drag Cats and Crossover, Solo Axle Back System.
1996 DGGM Impala SS
1995 Caprice 9C1 red over white
2015 Bright Yellow Jeep Wrangler, the better half's car.
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greasychevy
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Re: How big are you tires?

Post by greasychevy »

Those MTs are an inch shorter and your speed will be off 3.5% so will your shift points. That's up to you if you're ok with it. Mt also recommends you use at least a 9' wide wheel for them. There are several reasons why, but they main one includes the bead unseating. That being said I am running 275 BFGs for my street tires right now and have had no problems. You can see the sidewall rolling though. you should be fine with the 265s especially for just straight lining. Id run em...

http://www.rimsntires.com/specspro.jsp" onclick="window.open(this.href);return false;
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leadfart
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Re: How big are you tires?

Post by leadfart »

Just an FYI, from my experience, I GPS'ed the speedo with my Garmin, and it is spot on, according to it. In fact, is more accurate with the DR's. My shift points were dead-on, and I experienced no rolling of the beads. I only drive to and from the track with them, however.

I'm running them on OEM 18x8 Caprice-V rims. This is just my experience. Do whatever you feel comfortable with.
Bob Dannelley
2011 Alto Gray 9C3 Caprice PPV-Maggie-11.64@119.68-Sold!
1995 DCM Impala SS-409-Stroker!-11.83@115
2014 Silver Ice LTZ Silverado Crewcab 4X4
2007 Black Z51 M6-Corvette Coupe
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eagle-co94
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Re: How big are you tires?

Post by eagle-co94 »

Is anyone running Camaro wheels with the Camaro stock tires (245/55/18 or 245/45/20 & 275/40/20)? Curious if you've noticed any issues with the extra height or not. Take-offs are a nice option and then I/you can replace with the correct size when it's time.
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gregc
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Re: How big are you tires?

Post by gregc »

eagle-co94 wrote:Is anyone running Camaro wheels with the Camaro stock tires (245/55/18 or 245/45/20 & 275/40/20)? Curious if you've noticed any issues with the extra height or not. Take-offs are a nice option and then I/you can replace with the correct size when it's time.
I had Camaro SS take offs on my 9C1, but the Camaro's tires are taller. I took them off because the rears rubbed even with my fenders rolled. My car is lowered though. In order to get the Camaro rims to work, you can put them on without lowering the car. If you lower the car, you'll have to get 2 sets of fronts, the staggered set up for the rears will rub when you hit a bump.

I've got
275/35R20 for the rear
245/40R20 for the front
These tires are the correct height to match the OEM 18"
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