20 in rims
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Intermediate
Joined: Jul 2009
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20 in rims
hell all my good people,just purchased the american dream 2009 c6 my question is, running a 20x9 in front 20x11 in rear three piece forged wheels, is that a bad idea because i like to drive fast and if this combo is to dangerous please let me know. don't like the look of 19 - 20 combo.
Tech Contributor
Joined: Mar 2003
Posts: 12,094
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
I wouldnt say its dangerous but its all show and no go. There arent any performance tires available for a 20" rim that will have any real traction. Nitto makes a 305/20 drag radial but its not going to handle well and thats it for performance tires. Outside of that you will be lighting up the tires with 400HP in 3 gears. A friend had a 345/20 in the rear with 420rwhp and they lit up in 3 gears. The tire was a nitto Invo which is quite possibly the worst performing tire/size I had ever seen. I think stock runflats are better. I really cant deal with bling and no performance. Its like having a 6cylinder corvette.
The best tire size for real handling and traction is 18" all around.
The best tire size for real handling and traction is 18" all around.
Last edited by SpinMonster; Jul 16, 2009 at 05:48 AM.
Racer
Joined: Jan 2006
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From: Ossining "Routine to Extreme"
Originally Posted by pinky *****
hello all my good people,just purchased the american dream 2009 c6 my question is, running a 20x9 in front 20x11 in rear three piece forged wheels, is that a bad idea because i like to drive fast and if this combo is to dangerous please let me know. don't like the look of 19 - 20 combo.
I wouldnt say its dangerous but its all show and no go. There arent any performance tires available for a 20" rim that will have any real traction. Nitto makes a 305/20 drag radial but its not going to handle well and thats it for performance tires. Outside of that you will be lighting up the tires with 400HP in 3 gears. A friend had a 345/20 in the rear with 420rwhp and they lit up in 3 gears. The tire was a nitto Invo which is quite possibly the worst performing tire/size I had ever seen. I think stock runflats are better. I really cant deal with bling and no performance. Its like having a 6cylinder corvette.
The best tire size for real handling and traction is 18" all around.
The best tire size for real handling and traction is 18" all around.
) will be off.If you want to go fast you'll need a good tuner to tune your car and do some performance mods.
Give Chuck CoW a call, he's a supporting vendor here on the forum also he is a very well known and knowledgeable tuner and will be more than happy to answer any questions you have about the car. Here is his number 914-332-0049
Mrs. CoW
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Joined: Mar 2009
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I wouldnt say its dangerous but its all show and no go. There arent any performance tires available for a 20" rim that will have any real traction. Nitto makes a 305/20 drag radial but its not going to handle well and thats it for performance tires. Outside of that you will be lighting up the tires with 400HP in 3 gears. A friend had a 345/20 in the rear with 420rwhp and they lit up in 3 gears. The tire was a nitto Invo which is quite possibly the worst performing tire/size I had ever seen. I think stock runflats are better. I really cant deal with bling and no performance. Its like having a 6cylinder corvette.
The best tire size for real handling and traction is 18" all around.
The best tire size for real handling and traction is 18" all around.
Thread Starter
Intermediate
Joined: Jul 2009
Posts: 26
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20 in rims
first thanks 4 your input, second how does it drive with the 20s how fast did you go with them, what's people talking about with the traction control not working right and the speedo am i better of just keeping the stock
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Joined: May 2007
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From: Dallas TX
Pro
Joined: Jun 2006
Posts: 589
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From: Cincinnati OH
I had 19x10 and 20x11 CCW's on my '06. Speedo will be fine provided you do not change your overall diameter. Traction control and all nannies will work provided you get wheel sensors and resync to car. Actually, you loose the ability to turn them all completely off if you don't get sensors.
To Spin's point, traction was limited with my supercharger combo, but it greatly improved when i switched over to 325/25/20 Pilot Sport 2's out back. For my money, that's about as good as it gets for the 20" wheel right now. The rear would still wiggle a little in 3rd, but not totally rip loose like it would with the stock runflats.
To Spin's point, traction was limited with my supercharger combo, but it greatly improved when i switched over to 325/25/20 Pilot Sport 2's out back. For my money, that's about as good as it gets for the 20" wheel right now. The rear would still wiggle a little in 3rd, but not totally rip loose like it would with the stock runflats.
Last edited by SSJCreeper; Jul 16, 2009 at 09:47 PM.
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Pro
Joined: Jun 2006
Posts: 589
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From: Cincinnati OH
Yep, you can run that combo. The 20" wheel at all corners seems to be popular with some of the Z06 guys. Offset is the key thing to look out for. You'll want to make sure they don't stick out of the fenders. Traction control should not be an issue. I ran a set of wheels for a while without sensors. Traction control still worked, however I could not disable active handling and traction control without having the sensors.
Safety Car
Joined: Jan 2006
Posts: 3,598
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From: indianapolis indiana
have been running zr1 size wheels and tires for 4 years now on my o5...zero issues. of course 18 dr would hook better....but with my power level blowing the tires off saves my drive train lol
