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Here's a calculator for 1/4 mile times. not sure how accurate it is but I think it is pretty close. conversion is 2.205lbs = 1 kg

so a skyline being 1390kg is 3064lbs

http://www.robrobinette.com/et.htm

not bad...pretty accurate

kwinanna motorplex is a good 1/4 mile calculator.

These calculators are quite useless.....wait..... they are good for starting useless debates and arguments.

If you are serious about drag racing the information needs to be collected at the track, the actual track you want to race on and do well.

Whats the KW - HP ratio? I've forgotten? My old 32 GTR made 303RWKW last time I raced it, and it ran 11.135 @ 128mph. Isn't that about 430 rwhp? The calc said I needed 491 rwhp? Am I just a hell of a driver or what????!!!!! ;)

406.02hp - lets say you lose that much through the drivetrain - your calc isnt that bad.

Forgot to add that most calculators are at the engine. Most BASIC 1/4 mile calculators that use rwhp assume a % drivetrain loss which is a really bad thing.

Adrian

??? It states: "This calculator esitmates your quarter mile elapsed time (ET) when given the weight of the car and flywheel or wheel horsepower. A 17% driveline loss is assumed for flywheel HP."

I still reckon it's me!

Whats the KW - HP ratio? I've forgotten? My old 32 GTR made 303RWKW last time I raced it, and it ran 11.135 @ 128mph. Isn't that about 430 rwhp? The calc said I needed 491 rwhp? Am I just a hell of a driver or what????!!!!! ;)

1 hp is 0.74569 kw

so according to the calc...I could do a 10.6 with 500rwhp!!!! Now just have to find 500rwhp from somewhere :)

Just a note: You dont lose a fixed % through the drivetrain in ANY circumstance. The same drivetrain will lose say, 80hp with a 300hp engine as it will lose 80hp with a 500hp engine.

You don't magically get a drivetrain that eats more energy from the process.

So while 17% might work for your car NOW, if you increase the power from your engine by 200hp, the 17% wont apply.

Adrian

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