OK guys, I need traction help!
Thread Starter
Drifting
Joined: Sep 2008
Posts: 1,630
Likes: 3
From: Aiea Hi.
OK guys, I need traction help!
I've gotten myself into a sticky situation, and need to rely on everyone's personal experience.
I've got a set of GFG Trento 19x10 fronts, and 20x13 rears. I'm running Michelen PS2's now, 325/25/20 rears on my Z51 with a widebody kit, and traction had always been a problem running 650 whp.
I'm sending my car to Andy's shop here in the next couple weeks for a forged 402 Stroker with a T trim blower and new blower cam. It's going to come back home with a minimum of 750 whp, and a lot more Torque, which complicates things even further traction wise.
I need some help finding the right combination of wheel/tire. Ideally, I'd like to keep the GFG set that I have now, but they don't make a 20" sticky tire. Not that I can find any way, which leaves me with little option save for busting out the checkbook to the tune of another 7k+ for custom 3 piece wheels and tiresl.
I've checked Spin's "tractionmonster" thread, but that pertains mostly to the standard C6 tire size. I did leave a query just in case, but now I'm asking you guys.
If there were a way to cut and remove an inch from a Z06 set up for the front tires, I'd be up for that, I'm just not sure it is an option.
HELP!
I've got a set of GFG Trento 19x10 fronts, and 20x13 rears. I'm running Michelen PS2's now, 325/25/20 rears on my Z51 with a widebody kit, and traction had always been a problem running 650 whp.
I'm sending my car to Andy's shop here in the next couple weeks for a forged 402 Stroker with a T trim blower and new blower cam. It's going to come back home with a minimum of 750 whp, and a lot more Torque, which complicates things even further traction wise.
I need some help finding the right combination of wheel/tire. Ideally, I'd like to keep the GFG set that I have now, but they don't make a 20" sticky tire. Not that I can find any way, which leaves me with little option save for busting out the checkbook to the tune of another 7k+ for custom 3 piece wheels and tiresl.
I've checked Spin's "tractionmonster" thread, but that pertains mostly to the standard C6 tire size. I did leave a query just in case, but now I'm asking you guys.
If there were a way to cut and remove an inch from a Z06 set up for the front tires, I'd be up for that, I'm just not sure it is an option.
HELP!
Last edited by Spying Beast; Dec 18, 2010 at 08:47 PM.
Pro
Joined: Aug 2010
Posts: 748
Likes: 3
you must have meant 325 on the rear not 225 i hope?
anyway, you cant really have it all with bling bling 20's on the rear. with 700+whp youre just not going to get traction with a non drag radial. the fronts you can leave on there with the baller wheels, just get a nice pair of 18" or 17" forged wheels for the rear, such as CCW's and run a drag radial or an R compound tire.
when you want to show off your car or just cruise, run the 20's. when you need the performance, swap out the rear wheels. shouldn't be an issue.
ohh also you need to maintain .5" larger OD on the rear tires than the fronts for active handling and TC computer reasons.
anyway, you cant really have it all with bling bling 20's on the rear. with 700+whp youre just not going to get traction with a non drag radial. the fronts you can leave on there with the baller wheels, just get a nice pair of 18" or 17" forged wheels for the rear, such as CCW's and run a drag radial or an R compound tire.
when you want to show off your car or just cruise, run the 20's. when you need the performance, swap out the rear wheels. shouldn't be an issue.
ohh also you need to maintain .5" larger OD on the rear tires than the fronts for active handling and TC computer reasons.
Last edited by m R g S r; Dec 15, 2010 at 10:42 PM.
Melting Slicks
Joined: Nov 2005
Posts: 2,345
Likes: 2
From: Houston 06 C6 Ysi SC 402 fgd TX
you must have meant 325 on the rear not 225 i hope?
anyway, you cant really have it all with bling bling 20's on the rear. with 700+whp youre just not going to get traction with a non drag radial. the fronts you can leave on there with the baller wheels, just get a nice pair of 18" or 17" forged wheels for the rear, such as CCW's and run a drag radial or an R compound tire.
when you want to show off your car or just cruise, run the 20's. when you need the performance, swap out the rear wheels. shouldn't be an issue.
ohh also you need to maintain .5" larger OD on the rear tires than the fronts for active handling and TC computer reasons.
anyway, you cant really have it all with bling bling 20's on the rear. with 700+whp youre just not going to get traction with a non drag radial. the fronts you can leave on there with the baller wheels, just get a nice pair of 18" or 17" forged wheels for the rear, such as CCW's and run a drag radial or an R compound tire.
when you want to show off your car or just cruise, run the 20's. when you need the performance, swap out the rear wheels. shouldn't be an issue.
ohh also you need to maintain .5" larger OD on the rear tires than the fronts for active handling and TC computer reasons.
why settle for 750 when the set up you are getting will produce way more than that. just detune it when you put the bling wheels and tires on
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
All that horsepower and the stock suspension ? Larger tires not properly loaded will give you a smaller contact patch and therefore less grip. Yes you need more grip but you need to address the suspension issues together with the tire/rim combination.
Somewhere in Spins thread there are various suspension mods/tire/rim combinations that work with high HP ..... start searching
BTW if I remember powerlabs (sam) has a crazy fast car that hooked why not send him a PM
Somewhere in Spins thread there are various suspension mods/tire/rim combinations that work with high HP ..... start searching
BTW if I remember powerlabs (sam) has a crazy fast car that hooked why not send him a PM
Last edited by Tommy D; Dec 15, 2010 at 10:58 PM.
Thread Starter
Drifting
Joined: Sep 2008
Posts: 1,630
Likes: 3
From: Aiea Hi.
All that horsepower and the stock suspension ? Larger tires not properly loaded will give you a smaller contact patch and therefore less grip. Yes you need more grip but you need to address the suspension issues together with the tire/rim combination.
Somewhere in Spins thread there are various suspension mods/tire/rim combinations that work with high HP ..... start searching
BTW if I remember powerlabs (sam) has a crazy fast car that hooked why not send him a PM
Somewhere in Spins thread there are various suspension mods/tire/rim combinations that work with high HP ..... start searching
BTW if I remember powerlabs (sam) has a crazy fast car that hooked why not send him a PM
I meant 325's, sorry...
Oh, and I have Pfadt coilovers and Built trans and diff...
And yes, Sam does make a ton of power that he got dialed in but his tire sizes are near stock, and he does not run a rear widebody kit...
Last edited by Spying Beast; Dec 18, 2010 at 08:46 PM.
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Thread Starter
Drifting
Joined: Sep 2008
Posts: 1,630
Likes: 3
From: Aiea Hi.
Le Mans Master
Joined: Oct 2007
Posts: 6,149
Likes: 11
From: Greater Detroit Metro MI, when I'm not travelling.
No, not even close: 280 threadwear... They make the R1R which is 140 threadwear and does pretty well for a non R-Comp (I run them up front now) but even that doesn't stick as well as, say, a R888 or Nitto 555R / R2, and those in turn don't hook nearly as well as a drag radial, but with the DR you give up a lot of handling...
If you want to hook up you're going to have to ditch those 20s on the back.. No way around that. Keep them for bling and have an extra set of 18s or 19s for traction?
If you want to hook up you're going to have to ditch those 20s on the back.. No way around that. Keep them for bling and have an extra set of 18s or 19s for traction?
Thread Starter
Drifting
Joined: Sep 2008
Posts: 1,630
Likes: 3
From: Aiea Hi.
Thread Starter
Drifting
Joined: Sep 2008
Posts: 1,630
Likes: 3
From: Aiea Hi.
No, not even close: 280 threadwear... They make the R1R which is 140 threadwear and does pretty well for a non R-Comp (I run them up front now) but even that doesn't stick as well as, say, a R888 or Nitto 555R / R2, and those in turn don't hook nearly as well as a drag radial, but with the DR you give up a lot of handling...
If you want to hook up you're going to have to ditch those 20s on the back.. No way around that. Keep them for bling and have an extra set of 18s or 19s for traction?
If you want to hook up you're going to have to ditch those 20s on the back.. No way around that. Keep them for bling and have an extra set of 18s or 19s for traction?
Last edited by Spying Beast; Dec 21, 2010 at 12:12 AM.
