C5 Z06 Wheel/Tire Advice
#1
Melting Slicks
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C5 Z06 Wheel/Tire Advice
Im going to start participating in HDPE events and have two sets of wheels I can use.. The tires on both sets of wheels need to be replaced so the question is which wheel should I get tires for and run on the track..
I have stock C5 Z06 wheels front - 17 x 8.5, rear - 18 x 10.5 and CCW Classics fronts are 18 x 10 and rears are 18 x 12...
I have never tracked a car, but did about 10 or so events on a motorcycle..
Ill be driving the car to and from events and I dont want to be changing tires... What do you guys think I should go with??
Thanks,
I have stock C5 Z06 wheels front - 17 x 8.5, rear - 18 x 10.5 and CCW Classics fronts are 18 x 10 and rears are 18 x 12...
I have never tracked a car, but did about 10 or so events on a motorcycle..
Ill be driving the car to and from events and I dont want to be changing tires... What do you guys think I should go with??
Thanks,
#2
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Im going to start participating in HDPE events and have two sets of wheels I can use.. The tires on both sets of wheels need to be replaced so the question is which wheel should I get tires for and run on the track..
I have stock C5 Z06 wheels front - 17 x 8.5, rear - 18 x 10.5 and CCW Classics fronts are 18 x 10 and rears are 18 x 12...
I have never tracked a car, but did about 10 or so events on a motorcycle..
Ill be driving the car to and from events and I dont want to be changing tires... What do you guys think I should go with??
Thanks,
I have stock C5 Z06 wheels front - 17 x 8.5, rear - 18 x 10.5 and CCW Classics fronts are 18 x 10 and rears are 18 x 12...
I have never tracked a car, but did about 10 or so events on a motorcycle..
Ill be driving the car to and from events and I dont want to be changing tires... What do you guys think I should go with??
Thanks,
275/40/17 (and the front is 9.5 not 8.5)
305/35/18
GREAT dual use tire that is sticky but you can drive to the track on them and they last long.
Wait till you build up track experience then throw some hoosiers on the CCWs.
#3
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When I was running Stock C5Z sizes I ran with Nitto 555RII's in
275/40/17 (and the front is 9.5 not 8.5)
305/35/18
GREAT dual use tire that is sticky but you can drive to the track on them and they last long.
Wait till you build up track experience then throw some hoosiers on the CCWs.
275/40/17 (and the front is 9.5 not 8.5)
305/35/18
GREAT dual use tire that is sticky but you can drive to the track on them and they last long.
Wait till you build up track experience then throw some hoosiers on the CCWs.
#4
Racer
RA1's, R888's. Both sets of are great for racing. Strong and light. With the CCW's you more room for wider rubber though.
Last edited by hamdog; 02-15-2010 at 11:13 PM.
#5
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When I was running Stock C5Z sizes I ran with Nitto 555RII's in
275/40/17 (and the front is 9.5 not 8.5)
305/35/18
GREAT dual use tire that is sticky but you can drive to the track on them and they last long.
Wait till you build up track experience then throw some hoosiers on the CCWs.
275/40/17 (and the front is 9.5 not 8.5)
305/35/18
GREAT dual use tire that is sticky but you can drive to the track on them and they last long.
Wait till you build up track experience then throw some hoosiers on the CCWs.
#6
Melting Slicks
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So..
With stock wheels go with the nitto R2s..
front - 275/40/17
rear - 305/35/18
CCWs, go with Nitto NT-01s
front - 275/35ZR-18
rear - 315/30ZR-18 98W BLK
Ive heard great things about the Toyos but they're pretty pricey mounted on the CCWs..
R888s - $560fronts, $670rears
RA1s - $638fronts, $770rears
With stock wheels go with the nitto R2s..
front - 275/40/17
rear - 305/35/18
CCWs, go with Nitto NT-01s
front - 275/35ZR-18
rear - 315/30ZR-18 98W BLK
Ive heard great things about the Toyos but they're pretty pricey mounted on the CCWs..
R888s - $560fronts, $670rears
RA1s - $638fronts, $770rears
#7
Safety Car
Note that 315/30r18 is 25.4in tall and the 275/35r18 is 25.6in tall, so don't expect your Active Handling to be happy if you use those sizes. This is one of the reasons I'm on R888s 275/35r18+305/35r18 ... since I drive them daily and want something that works with the nannies in case the wife grabs the car...
#8
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Note that 315/30r18 is 25.4in tall and the 275/35r18 is 25.6in tall, so don't expect your Active Handling to be happy if you use those sizes. This is one of the reasons I'm on R888s 275/35r18+305/35r18 ... since I drive them daily and want something that works with the nannies in case the wife grabs the car...
at what point does it become an issue with AH?
#10
Safety Car
I'm not sure anybody knows the official cut-off for what affects AH, but everybody seems to agree you need a bigger rear and the closer you get to the stock difference the better if you're going to use AH.
#11
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As long as the rear tire is larger you shouldn't have any problems with TC other than earlier activation if the wheels spin. Active Handling is happy with equal diameters front and rear. Some cars don't have any TC issues with equal diameters either. However, you never know whether your TC will have an issue until you try it.
AH may not have any issues if the rear wheels are smaller in diameter as it doesn't use wheel speeds to determine whether or not the car is yawing sufficiently to go in the direction the driver is turning the steering wheel. When AH applies the brake to an individual front or rear wheel it uses the wheel speed sensor at that wheel to determine how close to lock up the wheel is.
Bill
#12
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Um, according to the Nitto website 26.3 is for the 305/35r18 -- you mentioned using a 315/30r18? I agree the 305/35r18 combined with a 275/40r17 or 275/35r18 works well.
I'm not sure anybody knows the official cut-off for what affects AH, but everybody seems to agree you need a bigger rear and the closer you get to the stock difference the better if you're going to use AH.
I'm not sure anybody knows the official cut-off for what affects AH, but everybody seems to agree you need a bigger rear and the closer you get to the stock difference the better if you're going to use AH.
I did a quick look at whats available and setup a spreadsheet.. Toyo proxes are definitely the closest matched for the CCWs, RA1s would also work well on the stock wheels..
#13
Drifting
Hey Gang,
I was going to post a nearly identical thread with similar questions, mind if I toss some queries in?
I've got a '99 FRC DD that I'm also setting up for Track Days (maybe 6 a year), plus a bit of auto-x. Our local track is not super fast, but has plenty of corners. I'm looking at a set of C5 Z06 wheels to replace the street worn thinspokes, which have Toyo Proxes T1R's on them - which are great in the rain for a DD, which is particularly important around here.
For std Z sizes I've found the T1R's at 1010tires, Bridgestone Potenza RE760 Sports and Firestone Firehawk Wide-Ovals at Tire Rack (F1 Supercars too, but the wet numbers don't look very good by comparison), and Michelin Pilot Sport PS2s at Discount Tire. I'll need to take a trip into Wash to source the tires, so have been looking at the major vendors there.
By the numbers the Potenzas come out at a pretty good bargain ($766 plus taxes, etc). And, the PS2s are highly reccommended but are pretty pricey ($1454 plus taxes, etc). Should I also be looking at the Nitto 555RIIs for a DD and Track Day car on stock Z rims? Any suggested vendors?
Don't mean to hijack the thread, but didn't think it warranted a duplicate.
I was going to post a nearly identical thread with similar questions, mind if I toss some queries in?
I've got a '99 FRC DD that I'm also setting up for Track Days (maybe 6 a year), plus a bit of auto-x. Our local track is not super fast, but has plenty of corners. I'm looking at a set of C5 Z06 wheels to replace the street worn thinspokes, which have Toyo Proxes T1R's on them - which are great in the rain for a DD, which is particularly important around here.
For std Z sizes I've found the T1R's at 1010tires, Bridgestone Potenza RE760 Sports and Firestone Firehawk Wide-Ovals at Tire Rack (F1 Supercars too, but the wet numbers don't look very good by comparison), and Michelin Pilot Sport PS2s at Discount Tire. I'll need to take a trip into Wash to source the tires, so have been looking at the major vendors there.
By the numbers the Potenzas come out at a pretty good bargain ($766 plus taxes, etc). And, the PS2s are highly reccommended but are pretty pricey ($1454 plus taxes, etc). Should I also be looking at the Nitto 555RIIs for a DD and Track Day car on stock Z rims? Any suggested vendors?
Don't mean to hijack the thread, but didn't think it warranted a duplicate.
#14
Melting Slicks
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more reassurance..
I got some responses from a few more people and they also recommended the nitto R2s..
sticky, close to stock tire diameters and decently priced... i have my answer..
thanks for all the help guys, very helpful.. looking forward to getting on the track..
the r2s are a decent tire especially to start with.
go with the R2's on the stock rims and dump the pretty ccw's for some track ones down the road, the R2's will do fine in the wet if you have to contend with it (not happy in standing water) R2's will handle wet but you're absolutely ****ed if it starts to pool......
thanks for all the help guys, very helpful.. looking forward to getting on the track..
#15
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TC and AH activation are two separate things and the tire diameters have a different effect on them.
As long as the rear tire is larger you shouldn't have any problems with TC other than earlier activation if the wheels spin. Active Handling is happy with equal diameters front and rear. Some cars don't have any TC issues with equal diameters either. However, you never know whether your TC will have an issue until you try it.
AH may not have any issues if the rear wheels are smaller in diameter as it doesn't use wheel speeds to determine whether or not the car is yawing sufficiently to go in the direction the driver is turning the steering wheel. When AH applies the brake to an individual front or rear wheel it uses the wheel speed sensor at that wheel to determine how close to lock up the wheel is.
Bill
As long as the rear tire is larger you shouldn't have any problems with TC other than earlier activation if the wheels spin. Active Handling is happy with equal diameters front and rear. Some cars don't have any TC issues with equal diameters either. However, you never know whether your TC will have an issue until you try it.
AH may not have any issues if the rear wheels are smaller in diameter as it doesn't use wheel speeds to determine whether or not the car is yawing sufficiently to go in the direction the driver is turning the steering wheel. When AH applies the brake to an individual front or rear wheel it uses the wheel speed sensor at that wheel to determine how close to lock up the wheel is.
Bill
Obviously you need to be careful and not get to close to the 9mph limit as when you have normal wheel speed differences in a corner you would set the code falsely.
When the codes are set it disables ABS/TCS/AH.
They will automatically clear after 50 ignition cycles with no more codes set. ABS/TCS/AH will re-enable after the condition clears.
Just as an FYI, ABS/TCS?AH are all handled by the EBTCM. There are many codes from the wheel sensors, steering sensor, yaw sensor, lateral acceleration sensor that will disable TCS/AH but not effect ABS. If your wheel speed sensors are working properly I think there are only 4 codes that will disable everything. C1225, C1226, C1227, C1228. These are more than a 9mph difference for 2.5 secs from any sensor.
Last edited by geerookie; 02-17-2010 at 02:32 PM.
#17
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#18
Burning Brakes
Im currently looking for fresh tires myself. A set of 555RII's is about 100 more than a set of NT-05's. This is probably a simple answer, but are the R2's significantly better performing than the NT-05's for the extra cost?
#19
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I run NT-05's 285/35-18 all around and ran 1.02's and 03's at Limerock all day long. C5 coupe, 3400# w/driver, stock LS1 with 111k miles, not even headers.
#20
Im going to start participating in HDPE events and have two sets of wheels I can use.. The tires on both sets of wheels need to be replaced so the question is which wheel should I get tires for and run on the track..
I have stock C5 Z06 wheels front - 17 x 8.5, rear - 18 x 10.5 and CCW Classics fronts are 18 x 10 and rears are 18 x 12...
I have never tracked a car, but did about 10 or so events on a motorcycle..
Ill be driving the car to and from events and I dont want to be changing tires... What do you guys think I should go with??
Thanks,
I have stock C5 Z06 wheels front - 17 x 8.5, rear - 18 x 10.5 and CCW Classics fronts are 18 x 10 and rears are 18 x 12...
I have never tracked a car, but did about 10 or so events on a motorcycle..
Ill be driving the car to and from events and I dont want to be changing tires... What do you guys think I should go with??
Thanks,
after you wear them out if you want something faster I'd go with the RII. they're an excellent dual purpose tire.
if thats still not fast enough your only other option is to get a tire trailer and slap some r-comps on those ccw's. but then you would be swapping tires at an event, which you didn't want to do.
in order to keep you from having to swap tires how about I take those ccw's off your hand.