2021 Supra stock at quaker city 1/4 slips

Gsinghp71

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Gurinder Singh
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12.44 was best I hit today. Anyone else with better time with stock car?
Thnks

Post yours stock numbers

Next dyno day, then its time to mod

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Gearbangin

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Quaker City Ohio? Been there the track ends up hill.
 

Camus

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Good time! my best stock was 12.7, and when I say my best, was my only shot, a lot of people that day:


My trap was 112 mph, it was a cold day, that helps.
 

JoeDaMechanic

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12.105 stock, was still trying to find the right rpm to launch at. Probably could have left with a few hundred more rpm still. Just read that some people were launching in 2nd for their best times. I'll have to try that next time. I think 11's are possible.
 

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MisterSkiz

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12.105 stock, was still trying to find the right rpm to launch at. Probably could have left with a few hundred more rpm still. Just read that some people were launching in 2nd for their best times. I'll have to try that next time. I think 11's are possible.
Definetly with those trap speeds.

Did you happen to tinker with the tire inflation at all?
 

turbopk

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91 or 93 pump gas?
 

turbopk

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I wonder how much of a difference if any does running 91 vs 93 pump make as far as 1/4 mile times...?..
 

MisterSkiz

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I wonder how much of a difference if any does running 91 vs 93 pump make as far as 1/4 mile times...?..
I guess it depends on how much knock the car is sensing and timing it is pulling.

If folks are getting low trap speeds on their cars, they should get some fresh 91/93...pull the negative battery cable for a bit, put it back on, then take the car on the highway and do some high gear pulls at lower speeds to try to get the car to learn the fuel trims and timing allowances again.
 

wrapfee

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12.105 stock, was still trying to find the right rpm to launch at. Probably could have left with a few hundred more rpm still. Just read that some people were launching in 2nd for their best times. I'll have to try that next time. I think 11's are possible.
Isn't this insane? I'm on this section looking for tips and tricks on launching and to see if anyone else is experiencing this. I've been cursing Michelin's name since I bought this car and was just about ready to junk these tires at 2,000 miles out of frustration.

I actually tried launching in second tonite just to see how it was and it still spun! Granted, this was just on a local road, chilly night, no prepping anything, etc. But that's still ridiculous.

And the launch control is a joke.

I dug out my Dragy tonite just out of curiousity (again, local roads, full tire pressure, chilly night)...

12.36 @ 115.71
12.37 @ 116.06
12.44 @ 115.86

I have an AA catted DP and Armytrix cat-back. No tune. This car will run 11.9 with traction. I'm too ashamed to take this car to an actual track. Hard to believe my two cars before this were a 6MT R8 and a 6M Evora 400, and the car I can't launch is an automatic Supra. :thumbsdown:
 

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