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View Full Version : 1/4 MILE RACING, HARDTOP ON OR OFF?

aQuarius26
09-21-2005, 07:32 PM
I recentally ran a 15.8 sec 1/4 mile at bandimere with my hardtop on. Im looking to go to a test and tune and was thinking about running without my hardtop. Technically, If i remove it, ill save 50 lbs. but be less aerodynamically efficient. My question is, which is more benifficial; Losing 50 lbs.? or keeping the top on for aerodynamic purposes?
Aracheon
09-21-2005, 07:34 PM
You're not going fast enough at the end of the 1/4 with a 15.8 to have the top off make much of a difference. However, it's theorized that for every 100 pounds you remove, that's 1/10th of a second off your time. So you MIGHT pull a 15.75 with the top off.

But, props on the ET... my Celica GT-S ran a 15.5
aQuarius26
09-21-2005, 07:39 PM
You're not going fast enough at the end of the 1/4 with a 15.8 to have the top off make much of a difference. However, it's theorized that for every 100 pounds you remove, that's 1/10th of a second off your time. So you MIGHT pull a 15.75 with the top off.

But, props on the ET... my Celica GT-S ran a 15.5

Im aiming 15.5 this time, being its at night and it'll be much cooler, and that was my first time ever racing in my life with medioker launches. did I mention that I weighed the car alone in @ 2095 lbs.;)
Thats exactally what i was thinking, im not fast enough for it ot matter aerodynamically.
stu
09-21-2005, 07:39 PM
Is it possible that it could fubar up your launch by removing some rigidity from the frame? Hell, maybe it'll make it better like when Camaro/Mustang guys disconnect their front sway bars.
aQuarius26
09-21-2005, 07:47 PM
Is it possible that it could fubar up your launch by removing some rigidity from the frame? Hell, maybe it'll make it better like when Camaro/Mustang guys disconnect their front sway bars.

Good point, I guess we'll see about that one. Hope it works to my advantage.
Aracheon
09-21-2005, 07:52 PM
Im aiming 15.5 this time, being its at night and it'll be much cooler, and that was my first time ever racing in my life with medioker launches. did I mention that I weighed the car alone in @ 2095 lbs.;)
Thats exactally what i was thinking, im not fast enough for it ot matter aerodynamically.


2095?! Holy shit. Imagine what a 4AGE or a 2ZZ-GE would do with a car that light. :D

My AllTrac weighs 3210... :(
aQuarius26
09-21-2005, 07:54 PM
2095?! Holy shit. Imagine what a 4AGE or a 2ZZ-GE would do with a car that light. :D

My AllTrac weighs 3210... :(

Exactally, 138-190 hp with 2zz swap....no no no wait, 138-230 with 2zz swap and turbo;) I heard its hard to control though.
STIBungy
09-21-2005, 07:56 PM
Is that with or without you in it?

My AllTrac weighs 3210... :(
aQuarius26
09-21-2005, 08:03 PM
Is that with or without you in it?

Dosent matter much, with his skinny ass it cant be more then +/- 130 lbs.
Aracheon
09-21-2005, 08:10 PM
Without me in it.

145 pounds, thank you. :D
aQuarius26
09-21-2005, 08:48 PM
For now im gonna drop another 25 reasonable miscalaneous lbs. + the 50 lbs from the Hardtop and be down to 2020 For the test and tune. Ill post next wednsday night with my hopefully improved times.
aQuarius26
09-21-2005, 08:48 PM
For now im gonna drop another 25 reasonable miscalaneous lbs. + the 50 lbs from the Hardtop and be down to 2020 For the test and tune. Ill post next wednsday night with my hopefully improved times.
Skaterkid
09-21-2005, 10:20 PM
Goddamn I need to learn how to launch, I run a 15.7@90 and you run a 15.8@85. Good job on your launch.