How Bad Did The DA Hurt My Time?

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Old 08-14-2010, 03:59 PM
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Default How Bad Did The DA Hurt My Time?

I went to test my new setup yesterday and first of all it was HOT & HUMID!!!

Car details in my sig.

Best Time:

I don't have the slip with me so here is what I remember.

1.72 60'

1/8 MPH 91.25

11.90 ET

115.5 MPH

I couldn't get the car to hook (4,400 converter) so I had to settle for soft launching the car.

The DA was 2,700

Thanks,

Bill

Last edited by Bill'sWS6; 08-14-2010 at 04:23 PM.
Old 08-14-2010, 05:07 PM
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Well I've ran 11.79 @ 118 mph in 4000' DA @ 2300' elevation. Thats 3700lb raceweight, an m6, 224 cam and unported 243s. If you ran in 0 DA I'd say you would pickup 2-3 mph and .2-.3 tenths in your 1/4. Sometimes there is more to DA readings than just the numbers. I've ran in 3000' DA with around 80% humidity and ran the same times as I've ran in 4000' DA with 20-30% but much hotter temps.
Old 08-14-2010, 09:15 PM
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Go to Dragtimes.com enter the info from your slip and you will get a DA corrected time.

Old 08-15-2010, 09:02 AM
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corrected time is
Stock and Mildly Modified Naturally Aspirated Engines
11.518 @ 119.415 MPH

Extensively Modified Naturally Aspirated Engines
11.639 @ 118.191 MPH

Extensively Modified Supercharged and Turbocharged Engines
11.754 @ 116.932 MPH
Old 08-15-2010, 10:05 PM
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Originally Posted by Nitroused383
Well I've ran 11.79 @ 118 mph in 4000' DA @ 2300' elevation. Thats 3700lb raceweight, an m6, 224 cam and unported 243s. If you ran in 0 DA I'd say you would pickup 2-3 mph and .2-.3 tenths in your 1/4. Sometimes there is more to DA readings than just the numbers. I've ran in 3000' DA with around 80% humidity and ran the same times as I've ran in 4000' DA with 20-30% but much hotter temps.
this is very true da should be used as a tool cause not all numbers are the same...for my car it seems to run better with the lower temps vs the same da at higher temps with a higher barometer or lower humidity...

also I just ran in about the same DA 2600 ft and when I will run in -700 to 900ft my mph will increase 3-4mph...
Old 08-16-2010, 11:28 AM
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As mentioned, the DA is just a calculation and can vary depending on time of year, what the #s are (temp, humidity, barometer, water grains and dewpoint). The rule of thumb is a tenth per 1000 DA (but that's a rough guess, and can be more or less with each car depending on how fast it is and how the engine is set-up for the conditions).

I'd say your time will drop 2-3 tenths and pick-up 2-3 mph in really good air.

Derek
Old 08-16-2010, 12:21 PM
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yeah you should pick up a good bit, whats your race weight? in cool air i did a 11.90 at almost 116 MPH in a 348 RWHP 3460 lb 98 camaro. i would think u should be good for low 11's at 119-120 when u can hook er up



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