2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

racing the 2.4

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Old Apr 10, 2006 | 09:49 AM
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racing the 2.4

i went to the track yesterday and i got a 15.8 as my best time with the mods in my sig, (check drag racing forums for more detailed info on the run) and i was kinda let down seeing as there are some 2.2's running better times than that, i was wondering if it could be due to my car having such low miles (2700) maybe it will get better with time, im an automatic so the driving skill isnt much of a factor, who else with an auto 2.4 or even 5 speed has ran anything close to this?
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Old Apr 10, 2006 | 11:49 AM
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Originally Posted by celicacobalt
i went to the track yesterday and i got a 15.8 as my best time with the mods in my sig, (check drag racing forums for more detailed info on the run) and i was kinda let down seeing as there are some 2.2's running better times than that, i was wondering if it could be due to my car having such low miles (2700) maybe it will get better with time, im an automatic so the driving skill isnt much of a factor, who else with an auto 2.4 or even 5 speed has ran anything close to this?
from what everyone says a 2.4 should run faster than that stock... so i dont know what to tell you man. i really want to take mine to the strip, good luck man with improving your time... trying using the "L" gear or something.
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Old Apr 10, 2006 | 11:51 AM
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2006 victroy red cobalt ss 2.4 vvt auto: s/c ground effects

it says Auto
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Old Apr 10, 2006 | 11:51 AM
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its almost definatly the Auto ..unless other autos are running faster

are you "torque braking" at launch or just givving it from idle
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Old Apr 10, 2006 | 12:59 PM
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maybe just maybe its cuz of the mileage cuz I noticed a difference when I got to 5000 miles and now I'm at 6500miles.
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Old Apr 10, 2006 | 12:59 PM
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well on my first 2 runs which were the slowest ones, i tq broke them and started in L with trction control off, on my last and fastest run i tq broke but I started in I gear. im thinking lowering my tire pressure to 45psi wasnt low enough or that my car is still breaking in. and yes its automatic for those that were wondering. ill go again in 1 month with lower tire pressure and see if i get a better outcome
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Old Apr 10, 2006 | 01:00 PM
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Originally Posted by Dragonsfire12345
maybe just maybe its cuz of the mileage cuz I noticed a difference when I got to 5000 miles and now I'm at 6500miles.
yeah im at 2700 right now in my miles so it could be that
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Old Apr 10, 2006 | 01:07 PM
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Originally Posted by celicacobalt
well on my first 2 runs which were the slowest ones, i tq broke them and started in L with trction control off, on my last and fastest run i tq broke but I started in I gear. im thinking lowering my tire pressure to 45psi wasnt low enough or that my car is still breaking in. and yes its automatic for those that were wondering. ill go again in 1 month with lower tire pressure and see if i get a better outcome
I thought the max pressure was 32psi?
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Old Apr 10, 2006 | 01:10 PM
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yeah really, i just boosted my pressure yesterday from 29psi to 37 and i had a hard time getting it that high, but i do have aftermarket tires
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Old Apr 10, 2006 | 01:11 PM
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i couldve swore that its says 50 psi on my pirellis...? can anyone go look real quick to verifiy, the print is real small and maybe i need to put my glasses on to see it
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Old Apr 10, 2006 | 01:12 PM
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I'll brb
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Old Apr 10, 2006 | 01:17 PM
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ok I looked and the little sticker on the door says 32psi
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Old Apr 10, 2006 | 01:18 PM
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that my be why ran a 15.8
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Old Apr 10, 2006 | 01:19 PM
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wow, ill have to go look at mine cuz i thought when i looked on the tire itself yesterday that it said 50 psi, ive never checked the door before though
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Old Apr 10, 2006 | 01:19 PM
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thats probably the max for the tire.
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Old Apr 10, 2006 | 01:20 PM
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well the wierd thing though is on my last run i hooked up perfectly at 45psi
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Old Apr 10, 2006 | 01:21 PM
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so, i am confused then i guess i have always kept my tires on all my cars at max psi i guess i should stop doing that and look on the door.
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Old Apr 10, 2006 | 01:22 PM
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now I wanna go to the track and see what 32psi does
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Old Apr 10, 2006 | 01:22 PM
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yeah cuz the door says for the 205 50R17 which is the stock pirellis we have should be at 32psi
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Old Apr 10, 2006 | 01:24 PM
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well now i feel dumb for having my tires that high
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Old Apr 10, 2006 | 01:26 PM
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Almost all passenger vehicle tires should be inflated to 30-40 psi, personally I keep mine in the high 30's, DO NOT inflate them to their max pressure for daily use, if you hit a large pothole they could EXPLODE due to the pressure, many tires are rated for 50psi MAX but if you keep them there they could explode under normal conditions, use the tire pressure ratings that are stated in your manual
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Old Apr 10, 2006 | 01:28 PM
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i have 1 question about that, if you were to go get another tire that wasnt stock how do you know what psi to keep it at if all it states on the actual tire is the max pressure?
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Old Apr 10, 2006 | 01:46 PM
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You should still use the same pressure as stated by the car, as i said, i inflate my tires about 5 psi than it says, because i like spinning my tires

The higher pressure you use, the less road friction you'll get, but you'll get less traction in the process, and same goes for vice-versa
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Old Apr 10, 2006 | 01:52 PM
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i see so ill go drop my pressure when i leave work today down to 32 psi
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Old Apr 10, 2006 | 01:53 PM
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your ride will be alot smoother, and you wont spin as easily
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