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well im probaly going out to rockingham on saturday, and it will be the first time i run this car in the 1/4, its gone 8.8@80 in the 1/8 what do you guys think it should do in the quarter and what do you think it will trap, does 78-80 in the 1/8 consistenlty. also on my drag radials I have been running them at 35psi just like on the street what do you suggest I drop them to at the track, thanks guys
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1988 mustang 5.0 LX, Edelbrock performer manifold, mac headers, off road H with high flow cats welded in, AC/smog eliminator, frpp 9mm wires, bbk CAI, msd cap and rotor, Flowmasters dumped, steeda tri ax, 3.73 gears, and mickey thompson DR's 13.91@101
1983 pontiac grand prix, weekend car, 355sbc 11.5.1, world heads, forged internals, th-400 with transgo shift kit, 8.5 rear with 4.56's and auburn posi unit, 11.96@115 on et streets. (SOLD)
I've been wondering this for a while... Can someone tell me why some only run 1/8 mile and others 1/4?
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-1994 Mustang GT... K&N filter,BBK Full Length Headers,modified midpipe & Flowmaster muffs, timing at 14*. Best time- 14.74 @ 93.16 Just added: GT40 tubular intake (painted by ME!) -Check profile for pics of our car collection! -Member of MBMCustoms Car Club - AmericanMuscle ROCKS!!
Im guessing you should run upper 13's to lower 14's. I dropped to 15 psi on street tires, not sure what you should do with DR's though. Good Luck with the 1/4 mile.
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2001 Mustang GT-"GONE"
Bassani x-pipe Catted, Flowmasters, CAI, March UDPs, Steeda Tri-ax, Functional Hood scoop, Matrix lowering springs, Steeda C/C plates, Roush LCA, Alpine-9885 Head Unit.
2003 F150 Sport 4X4 4.6-SOLD
1999 F150 Xlt Flaresode 4.6-SOLD
2000 VW Jetta GLX VR6- God I miss my stang.
Last edited by braupe; 11-19-2008 at 03:58 PM.
Reason: typo
well im probaly going out to rockingham on saturday, and it will be the first time i run this car in the 1/4, its gone 8.8@80 in the 1/8 what do you guys think it should do in the quarter and what do you think it will trap, does 78-80 in the 1/8 consistenlty. also on my drag radials I have been running them at 35psi just like on the street what do you suggest I drop them to at the track, thanks guys
If you have a perfect lock and takeoff you'll run about 13.2
Keep your front tires at 35, drop the back to 32psi and make sure you don't run on a full tank of gas. I recommend showing up to the track with between a 1/4 - 1/3 tank of gas depending on how many runs you're going to do. In case it slips your mind, remove everything from the inside of your car that doesn't need to be there (IE spare tire, jack, random stuff in your trunk/glovebox/console, subwoofers etc).
Also, drain/flush all of the coolant out of the radiator and engine block then refill with distilled water and a bottle of Royal Purple's "Purple Ice", NO ANTI-FREEZE. I run only distilled water in my cooling system when I race but if you're nervous about your cooling system, the Purple Ice is the way to go. Water displaces heat faster than coolant and causes less drag on your water pump.
some only run the 1/8 because it is harder to win, think about all the times someone can drive around someone else when racing a 1/4 mile, you have to do everything right, you mess up, you lose, if your asking why some tracks are only 1/8, i'm not sure, maybe they didn't have the room for 1/4 mile track....
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1988 Mustang GT, TTops, 306, AOD with 4r70w gearset and shiftkit, E303 Cam, Ford Racing headers, BBK H-pipe, Flowmaster Cat Back, 3.73's, Traction lok with F150 spring, Eibach lowering kit, B&M Tork Master 2400 Converter, trans cooler, C&L 76mm Mass Air, Accufab 70mm throttle body, K&N filter, Mass Air conversion, Subframe connectors, Lots of Polyurethane, 210HP at 4500rpm, 272 Torque at 3600rpm at the wheels, best 1/4 mile: 14.12
for most race cars you can multiply your 1/8 bty 1.57 to get your 1/4 time. not sure how it works with a street car but it should be close.that would put a 8.8 into a 13.81. my lightning ran 9.00 but it ran 13.69 so it didnt work for that.
If you run regular street tires you should have your front pair a little higher than the max recommended psi, and on the rear pair should stay at the factory recommended psi. When running street radials, the lower the psi, the worse your traction will be.
You're right on the money. One of the places I race is at a local stadium parking lot where an organization called Race Legal holds drag races on weekends throughout the year. The section of the parking lot that was allocated for Race Legal only allowed for an 1/8th mile strip, otherwise it'd be the standard 1/4 mile. Same goes for 3 other places I've raced in California.
You're right on the money. One of the places I race is at a local stadium parking lot where an organization called Race Legal holds drag races on weekends throughout the year. The section of the parking lot that was allocated for Race Legal only allowed for an 1/8th mile strip, otherwise it'd be the standard 1/4 mile. Same goes for 3 other places I've raced in California.
Good enough for me. I was just curious.
I prefer the 1/4 mile still. 1/8 mile race just seems like it would go too quick, not as much of a rush. But I don't know since I've never just raced 1/8 mile.
Back to the original topic: Let us know what you run so one of us can brag about who was right!
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-1994 Mustang GT... K&N filter,BBK Full Length Headers,modified midpipe & Flowmaster muffs, timing at 14*. Best time- 14.74 @ 93.16 Just added: GT40 tubular intake (painted by ME!) -Check profile for pics of our car collection! -Member of MBMCustoms Car Club - AmericanMuscle ROCKS!!
1/8 mile to 1/4 mile 
