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The Racers Bench Is the track just too much for you? Want to know what will beat what? Talk about it here!!

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Old 07-06-2013, 06:52 PM   #1
mustang_gt808
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Default just picked up bfg drag radials

so i just bought me some 275/40/17 drag radials!! question what psi should i run? streets drag and at the local drag strip? and what RPM should i launch at?
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IF THE MUSTANG FORUMS APPROVES THEN YOUR CAR IS HORSEPOWER APPROVED!!!!!!

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Old 07-07-2013, 03:10 PM   #2
808muscle
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At the track I would start at 18 psi and go down from there. You basically want to run the most amount of psi to get your best 60 ft but not too low to where it slows you down on the top end of the track. I run 18 with my MT DR's but my car is an auto so it launches easy. Make sure you do a real good burnout to heat em up. You want 40 mph for 4-5 seconds. Try launching at 3k and if it bogs, then up to 3500 then 4k until it just hooks. I imagine dumping the clutch at 5k would just spin the tires. Its gonna be a learning process. Shift at or near redline for your best ET. Your really gonna have to drive it like you stole it to get your best ETs.

On the street run them around 30 psi, check the tire to be sure. You dont want to run low psi on the street. It wont like the turns. I have a portable compressor than inflates my tires at the track so I can drive it home.
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Old 07-07-2013, 06:52 PM   #3
mustang_gt808
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Quote:
Originally Posted by 808muscle View Post
At the track I would start at 18 psi and go down from there. You basically want to run the most amount of psi to get your best 60 ft but not too low to where it slows you down on the top end of the track. I run 18 with my MT DR's but my car is an auto so it launches easy. Make sure you do a real good burnout to heat em up. You want 40 mph for 4-5 seconds. Try launching at 3k and if it bogs, then up to 3500 then 4k until it just hooks. I imagine dumping the clutch at 5k would just spin the tires. Its gonna be a learning process. Shift at or near redline for your best ET. Your really gonna have to drive it like you stole it to get your best ETs.

On the street run them around 30 psi, check the tire to be sure. You dont want to run low psi on the street. It wont like the turns. I have a portable compressor than inflates my tires at the track so I can drive it home.
thank you i will try that and let you know whats the results! thanks for your help
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IF THE MUSTANG FORUMS APPROVES THEN YOUR CAR IS HORSEPOWER APPROVED!!!!!!

2005 mustang gt
5 speed
JLT cold air intake
bama race tune 93
pypes xpipe
pypes muffler delete
ford racing 4:10s gears
JnA LCA
BFG drag radials 275 40 17
sr 1.5 lowering springs
blacked out head,tail,signal.brake lights
20%tint
fron chin spoiler
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Old 07-07-2013, 06:52 PM
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