Bone stock
Time is kinda slow if you have factory 3.23s
Right on par if you have factory 2.73s
I had an 01 Z28 with 2.73s and it ran 13.8 @ 102 stock. Added 3.23s, slicks, a stall and a tune and it went 12.70 @ 107.
Right on par if you have factory 2.73s
I had an 01 Z28 with 2.73s and it ran 13.8 @ 102 stock. Added 3.23s, slicks, a stall and a tune and it went 12.70 @ 107.
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Thread Starter
TECH Apprentice
iTrader: (2)
Joined: Sep 2010
Posts: 321
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From: QuarterMile, KY
Yeah i was thinkin that but then i figured i would wait until after headers but since you say it would be a good idea i prolly will go ahead and do it, thanks
Thread Starter
TECH Apprentice
iTrader: (2)
Joined: Sep 2010
Posts: 321
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From: QuarterMile, KY
Also like i said first time in auto and all i was doing was foot off gas then tromp. Do you guys in autos hold brake and get the rpms up to about 1500 then release? thanks again
7 Second Club
iTrader: (5)
Joined: Nov 2001
Posts: 8,834
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From: Gainesville, Florida # of drag strips runs: ?!?!?
I footbrake mine to about 900-1000 rpm and roll into the gas on street rubber. Got me a best of 2.00 60 foot time on the stock Goodyear GSCs.
Derek
Derek
10 Second Club
Joined: Oct 2007
Posts: 2,630
Likes: 28
LOL, I was talking to the OP but I will help you out too. After every time you go to the dragstrip, check out dragtimes.com and click on "tools" and then "density altitude calculator". Use the menu bar to find your dragstrip and the date you ran to get the actual DA for the particualr time of day that you ran. Plug in your 1/4 mile ET and mph and it will convert it to corrected sea level numbers. For your 13.86 @ 103 I just picked 5.54pm (no idea what time of day you ran) and it was 70 degrees with 29.89 bp and 53% humidity. The DA on that run would have been 932 feet (0 is sea level). Your run would have been this with sea level air:
Stock and Mildly Modified Naturally Aspirated Engines
13.734 @ 103.942 MPH
13.734 @ 103.942 MPH
The usefullness of this tool is incredible. You might do a particular change to your car that you think will help you out, but the air isn't there that day and your car runs the same. So you go home discouraged but in actuality you picked up 10hp. The DA calculator will show you that your car would have run better.
An example would be for your car that you go and add an electric water pump and an underdrive pulley. You take your car to the same track and you run an identical 13.86 @ 103. You are confused as to why, but when you check the weather, you see that it is 78 degrees, with low pressure and 85% humidity. The calculator will show that you would have ran a 13.6ish, so you know that you did a change for the better, compared to your 13.86 you ran on the 29th.
