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Rear tire psi mickey thompson drags

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Old 08-09-2017, 06:06 PM
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bdickey058
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Default Rear tire psi mickey thompson drags

Running a buddy this weekend at the track. I have a d1sc c6z making 800rwhp. I have 305/45/17 mickey thompson et streets on the rear. First time i went out i spun like crazy in 1st gear. Literally feathering the throttle all the way through 1st. I currently have about 25 psi now. What are you guys running for psi and getting it to hook. The track will be non prepped.
Old 08-09-2017, 06:26 PM
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Originally Posted by bdickey058
Running a buddy this weekend at the track. I have a d1sc c6z making 800rwhp. I have 305/45/17 mickey thompson et streets on the rear. First time i went out i spun like crazy in 1st gear. Literally feathering the throttle all the way through 1st. I currently have about 25 psi now. What are you guys running for psi and getting it to hook. The track will be non prepped.
14-16psi. 18 if prepped.
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Old 08-09-2017, 08:50 PM
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Originally Posted by bdickey058
Running a buddy this weekend at the track. I have a d1sc c6z making 800rwhp. I have 305/45/17 mickey thompson et streets on the rear. First time i went out i spun like crazy in 1st gear. Literally feathering the throttle all the way through 1st. I currently have about 25 psi now. What are you guys running for psi and getting it to hook. The track will be non prepped.
I'm getting ready to order the same tire. What wheels are you running them on? I've got C5Zs. Please post pics if you have them.
Old 08-09-2017, 08:54 PM
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I run my 305/45/18 R's at 15 PSI.
Old 08-09-2017, 08:58 PM
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bdickey058
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Welds.
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Old 08-09-2017, 09:57 PM
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25psi is way too much if you want traction. Fine for driving though.
Old 08-10-2017, 05:51 AM
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Originally Posted by Dimewise
I'm getting ready to order the same tire. What wheels are you running them on? I've got C5Zs. Please post pics if you have them.
Run them on a 9.5 inch C5z wheel.
Old 08-10-2017, 08:44 AM
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Originally Posted by bdickey058
Running a buddy this weekend at the track. I have a d1sc c6z making 800rwhp. I have 305/45/17 mickey thompson et streets on the rear. First time i went out i spun like crazy in 1st gear. Literally feathering the throttle all the way through 1st. I currently have about 25 psi now. What are you guys running for psi and getting it to hook. The track will be non prepped.
Call M/T. A real person( tire tech) will answer your questions. They are very helpful.
Old 08-10-2017, 02:23 PM
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The answer to any PSI question is going to be a range, and you have to find what works for you. There is no magic number anyone on the internet can give you. Depends on the car, track, alignment, tire wear, suspension, etc.

That being said, anywhere from 12-20psi is probably the range you want to test out. Start higher and keep dropping pressure until you get where you want.
Old 08-10-2017, 03:04 PM
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bdickey058
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I appreciate all the guidance guys. Last time I ran I was mid 20's for psi. I'll drop to 18 and keep going lower till I hook
Old 08-10-2017, 05:08 PM
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Originally Posted by Unreal
The answer to any PSI question is going to be a range, and you have to find what works for you. There is no magic number anyone on the internet can give you. Depends on the car, track, alignment, tire wear, suspension, etc.

That being said, anywhere from 12-20psi is probably the range you want to test out. Start higher and keep dropping pressure until you get where you want.
with this guy!
Old 08-10-2017, 05:12 PM
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Even if there was a set magic PSI, most common automotive gauges are lucky to be 2-3psi off standards. So part of finding what works, is finding what works with your tire pressure gauge. I have 3-4 and one can read 15, one 16, one 17 and one 19 all without touching anything.
Old 08-11-2017, 12:36 PM
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i run 18-19psi on my car with ET Street R 17" size on the street and that seems to be about right
Old 08-14-2017, 05:55 PM
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Do most of you guys use the pressurized can trick for the ecm to run air pressure that low?
Old 08-14-2017, 06:09 PM
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16 lbs cold got me my best 60 yet. 1.702 on a non prepped track. 305/45/17
Old 08-14-2017, 06:45 PM
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Originally Posted by Quick2
Do most of you guys use the pressurized can trick for the ecm to run air pressure that low?
Nope. Only need them that low for track/racing. Set down, race, turn back up. Simple enough. ECU doesn't even notice for 100+ miles.
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