Thanks

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Thanks

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127 Posts

Round number is 10whp = .1 in the 1/4

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127 Posts

Its just like the 100lbs = .1sec off your 1/4mile!

Also a Stock GT has ran as low as High 14sec! Going by his time and following the 10HP = .1sec rule puts him at 14.9sec stock going by your 150HP over stock and 13.4 et.

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http://www.smokemup.com/auto_math/hp_mph.php

HP based on trap

http://www.smokemup.com/auto_math/hp_et.php

HP based on ET

*This requires that you know the race weight of your car. Also note that this is for RWD so the HP numbers are a tad higher.

**I prefer to use Trap as an HP estimate instead of ET since ET is based on how well you drive (which I don't).

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Like if your car puts down 100 hp, you add 10 hp, you're adding ~10% more power, whereas if the car puts down 1000 hp, your only adding ~1% more.

Example-

Original ET- 15.9

Original WHP- 160

New WHP- 308

160/308 = .519

cube root of .519 = .804

.804 x 15.9 = 12.78 ET, which is about where Rick should be if he got a good launch.

The same applies to the mph, just use 1/.804 or start by dividing 308/160.

308/160 = 1.925

cube root of 1.925 = 1.244

1.244 x 86mph(guess of stock mph) = 106.98 mph which is close to what he runs.

-Matt

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