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#1
04-15-2002, 06:13 PM
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1/4 mile times... question
What is the relationship between 1/4 time and trap speed? Like if you have a 1/4 mile time of 10.5 @ 120 is that possible? Can it be different? Can one be determined using the other? How does this work?
thanks -Dan
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http://www.insanium.net >1997 Infiniti QX4 .Supercharger .Dual Flowmaster Exhaust .18" ACE T1/Pirelli Scorpio 255/55 V .2 10" JL Subs/300W Phoenix Gold 
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#2
04-15-2002, 06:48 PM
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Trap speed and quarter mile time can vary, even if one of the 2 numbers is the same between 2 cars. It's all about traction, launching, acceleration and what not. An example would be Car A does it in 12s @ 110MPH (I'm just making up numbers), Car B does 12s @ 120MPH. Both cars had the same time, but different trap speeds. Car A probably had good initial acceleration but didn't accel as quickly at higher speeds, like Car B.
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#3
04-15-2002, 06:58 PM
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I've been at the track on test and tune night and there would be some pro stock 1/8 mile guys out there costing the last 1/8 mile and running the 1/4 mile in the 10's @ 90 mph.
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Intake=Akimoto funnel ram II Header=DC sports ceramic coated 4-2-1 Exhaust=Greddy 2 1/4" cat back Suspension=energy suspension polyurethane bushings, KYB shocks, Eibach sportline springs 1 3/4" drop. Wheels=AR TT 16", Nitto NT-450 215/40r16 Best 1/4 mile=15.8 @ 88mph
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#4
04-15-2002, 08:00 PM
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what the %$#?
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http://www.insanium.net >1997 Infiniti QX4 .Supercharger .Dual Flowmaster Exhaust .18" ACE T1/Pirelli Scorpio 255/55 V .2 10" JL Subs/300W Phoenix Gold
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#5
04-15-2002, 08:06 PM
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Trap speed and 1/4 mile time only have a little bit of a relationship to each other.
having a faster time doesn't mean you have a higher trap speed.
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Darkness.  The new official owner of www.darkness.co.nz (but theres nothing there yet.) ------------ "Have you seen Star Wars? The Darkness is the Force on crack"
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#6
04-15-2002, 08:21 PM
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It can come down to boost (when your turbo spins up), traction (suspension set-up, tyres etc), gearbox (manual, auto, ratios) and driver ability.
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#7
04-16-2002, 09:14 AM
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If you get a bad launch , lack of traction you usally have a trap speed higher than pepole expect for some time... If you can run good times at low speeds that means you are a really good driver , launch perfectly , shift correctly and time everything nicely , or have a car set up good for drag racing (like having short ratio gearbox or so...)
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