Calculate 1/4-Mile E.T. From Horsepower - Horsepower Calculator
 

http://www.teamenvy.com/battlecalc.htm

Just something I came across.

I should be running 12s man!

me too. that thing is BS.

How much are you using for weight.

Anyone know how on/off the aeroforce hp gauge is. It's flywheel too right?

put 3000 pounds and 200 wheel horsepower, gives u low 14's which seems right

Based on my time and weight my car makes 188 at the Flywheel

I'm runnin 13.2's lol

Kind of funny how I punch in 240WHP and a weight of 3,200 and I come up with a 13.8? I am assuming your car is about 3,000 and adding 200 for driver. Now these calculators are not 100% but they are usually with in a couple of tenths and don't take into consideration variables such as wheelspin or poor driving. I mean it's just a math calculation based on the power to weight ratio. Hey Asstyme I am from Janesville too;).

get drag radials and the times would be more realistic in real life as well

i call bs:

This part of the calculator is based on a rear drive v8 car which will lose about 20% of the horsepower at the crankshaft. Now a front drive manual trans car will only lose about 5-7% of the HP from the crank to the wheel..... so you would only be producing about 160HP at the crank if this formula was set-up for a front drive stick. I guess using one of these calculators means you need to know a little bit about cars.......

By the way I have no idea how much power your car is rated at stock- my guess is about 160 HP at the crank is about right?

haha... you say it's for people that know about cars, then say a fwd car only has 5-7% loss?? :lol: and it doesn't say anything on that page about it being for a rwd v8

It says i should be running 13.55 and I ran a 13.62. Im guessing im pushing 250hp it says im pushing 248. Seems alright to me.

How much HP are u guys pushing. My car weight 3148 lbs with me and a full tank of gas. Thats the weight im using and the numbers worked out pretty well for me.

145.

who knows... maybe i'm the idiot! wouldn't be the first, or last time

i think its a solid guess...

over the weekend with half tank of gas and me in it my car was 3160lbs

i put that in and my guestamated(sp?) hp and it gave me 12.6's...so with rob and a few others that i'm on the tuneing/moding level runing 12.80's i'd say this thing is dam close!

How much HP u think ur pushing.....im guessing 280 which is 13.0-13.1. Where are you getting 12.6? 310 hp? All on this ricer calculator of course.

Says this at the bottom of the 1st block...

"This calculator esitmates your quarter-mile elapsed time (E.T.) when given the weight of the vehicle and flywheel or "at the wheels" horsepower. A 17% driveline loss is assumed for flywheel HP."

I would assume 17% means RWD

How much does your car weigh with you in it?

Yes, 17% is for rear drive- and an automatic will lose more than a stick, a high stall converter will eat a lot too, so will big transmissions such as a turbo 400 verses a turbo 350 and a Dana 60 verses a 10 bolt. You can buy a desktop dyno program that really can dial in on things and predict how changes will affect things.

right... but it calculate about a 25% loss... who knows

" Hey Asstyme I am from Janesville too"
im only a 1/2 hr away

I hope that calculator is right. With 3000 lbs. and the 271 WHP I dynoed in 4th gear, I got a time of 12.9 and with the 274 WHP I dynoed in 3rd gear I got a time of 12.8. Not bad at all.

3000lbs im assuming ur a thin dude running on fumes :lol:

With traction and a good run I would think you would be pretty close but don't forget the conditions at the track might be a little different that at the dyno. How did you get the car's weight down to 3000? Hope you get yourself a 12. :)