I would like to bring this back up and see what everyone gets.

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Fast46Triton ®

1999 Ford F150 XLT Supercab, Shortbed, 4x2, 4 wheel disc brakes/4 wheel Anti-Lock Brakes, Cloth Seats, Amazon green, 16" All season tires, Soft Tonneau Cover, CD Player, 4.6 liter Triton V8, 3:55 ls, towing package, 4 speed auto, K&N Airfilter

 

I question the validity of that and all the other ones 'cause when I punch in my #'s I get:4670lbs+my big butt=4900+/-. 13.57sec.=388HP and 101.08MPH=395HP. But here's the odd part. If I do the numbers I got when the blower didn't come in I get:16.23=227 HP and 86.59MPH=248HP. Numbers that ARE in line with a chipped non-supercharged 5.4. All the online calculators put it in the 380-420 RWHP range.

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Red 99.5 Lightning,#0975,Born 5/6/99...Adopted 5/27/99 Chipped w/SuperChip Flipchip chip,Water Wetter, Mobil 1, Foglamp Covers, 13.573@101.08

 

395 hp sounds good to me!

 

The most immediate problem with most of those equations is that they do not take aerodynamic drag into consideration. Drag goes up exponentially with vehicle speed, it does not rise in a linear fashion, so drag throws them all off a bit. They're fine for rough work, just don't expect them to be spot-on.

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Mike Troyer
Performance Products, Inc.
National Distributor of Superchips
(540) 862-9515
Email: mtroyer@compuserve.com