15 inch drag radials
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Pro
Joined: Nov 2011
Posts: 592
Likes: 13
From: Austin Texas
15 inch drag radials
Currently running Mickey Thompson 275/60/15 ET street Radial pro tires but I have seen far more people running the 325/50/15 tires on C6's. Has anyone run both? Which did you prefer? Mostly used for roll racing but it would be nice to he able to hook this car up in 2nd gear.
Team Owner
Joined: Nov 2007
Posts: 24,035
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From: Gilbert AZ
Haven't ran both but the few people I talked to said the pros hook better at 1/4 mile and prepped track. That is to the older ET street 325s. The new ET street Rs are same or better than the pros.
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Pro
Joined: Nov 2011
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From: Austin Texas
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Team Owner
Joined: Jan 2007
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From: cookeville tennessee
For the track 1/4 are the 1/8 mile the 275 hands down.
Burning Brakes
Joined: Jun 2003
Posts: 846
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From: Knoxville TN
To add to what Unreal stated.. The Pros worked better than the old MT street radials. But the Pros and now the newer ET Street R & ET Street S/S all have the same R2 compound. I know RPM's red C5Z ultra car has been like 1.16 60' on the new 275/60R15 S/S.
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Joined: Nov 2007
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From: Gilbert AZ
Melting Slicks
Joined: Jul 2011
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From: NJ
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Pro
Joined: Nov 2011
Posts: 592
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From: Austin Texas
So the 325 is hooking better on the street. I had no chance of hooking 2nd before from about 35-40mph even at just 14-15psi of boost. It will hook 2nd now at 17-18psi. I have not tried to go higher than that. It could have been old warn out 275's.
How much HP would you say you need to really use a 325? This car makes 1100rwhp and over 1000tq at 21 psi. Being turbo I can make a boat load of torque pretty low if I would like to. I have to ramp to boost in to even give the tires a chance to hook.
How much HP would you say you need to really use a 325? This car makes 1100rwhp and over 1000tq at 21 psi. Being turbo I can make a boat load of torque pretty low if I would like to. I have to ramp to boost in to even give the tires a chance to hook.
Melting Slicks
Joined: Jul 2011
Posts: 2,042
Likes: 24
From: NJ
You have plenty enough power for the 325... order it and don't look back... a 28 inch tall tire is not "over tiring" a car with that much power. My buddies ZR1 makes no where near that and he is loving the 325.
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Pro
Joined: Nov 2011
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From: Austin Texas
What are you guys using to balance them if you are balancing them at all? The shop put some sticky weights on there but the a-arm pealed them off. I think I might need to put them closer to where the caliper is.
Instructor
Joined: Dec 2014
Posts: 110
Likes: 14
From: Crosby TX
You'll definitely have to move them in board from where the control arm rides. I had to remove a fair amount of material off of the lower control arm just to keep the wheel from hitting it. The lower the car rides the more material has to come off. I had similiar issue on the front with Alumastars because I've got a Z51 optioned car.
Safety Car
Joined: Mar 1999
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From: Toronto, Canada
This is apparent when the car has been sitting overnight. For the first five minutes of driving the tires feel out of round and get slightly better once they warm up. Not sure if my tires are bad but I'm hesitant to buy another set.