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How do you guys find those 1/4m MPH vs HP calculators? any accurate?

Such as

http://www.race-cars.net/calculators/et_calculator.html

I don't see why everyone's so touchy over dyno results.

How do you guys find those 1/4m MPH vs HP calculators? any accurate?

Such as

http://www.race-cars...calculator.html

I don't see why everyone's so touchy over dyno results.

I did it and it was very wrong, my boat weighs about 1600 kg = 3527 lb, my trap speed is around 133mph, it said I had 647RWHP.

On the dyno at unigroup it says about 500hp ATM, so thats 150 stray horses my car does not have.

The ET one was at least partialy right with my 3527lb and 500 hp giving a 11.17, my best is 11.13, but the trap speed was 122, its missing the 11mph that I do have.

Mark did u actually weigh ur car? My GTR weighs 1550 which is full weight

Last time at the Creek on the scales with me in it (80kg then, fatty) it was 16??, no carpet/sound deadening/no rear seat, it does have a steel Bonds half cage in it though and a full tank of fuel .

Unless the scales were faulty ?????

I might have to re-weigh it without the anchor

Congrats on the airport high speed run Robo :D

Awesome top speed!!

Thanks mate, its was fun, apart from the f**king rocks, and my standard size brakes trying to slow me down from 245kph so I didnt hit the big white cones..

RB25/30RWDFTW

Good luck for me but bad luck for some other cars with the radar playing up, my last run was about 1200, apparently the radar glitch happened after I left.

That yellow 34 GTR was puching a heap of power to, there is a linky somewhere with incar footage.

Well I was a bit disappointed I had to leave so early, would have loved to see a few of the higher hp cars run..

The rocks and stone chips were a little annoying..

Your right though, those cones do approach very quickly.. Might be time for a brake upgrade mate :D

I did it and it was very wrong, my boat weighs about 1600 kg = 3527 lb, my trap speed is around 133mph, it said I had 647RWHP.

On the dyno at unigroup it says about 500hp ATM, so thats 150 stray horses my car does not have.

The ET one was at least partialy right with my 3527lb and 500 hp giving a 11.17, my best is 11.13, but the trap speed was 122, its missing the 11mph that I do have.

Mine says 560-580

Is the mercury 34 really running stock bottom end?

Can't find my hpi mag with full write up but found this http://www.mercurymotorsport.com.au/2011/04/“nitto”-r34-gtr-–-1072hp-at-all-4-wheels/

Maybe they have more than 1?

what the deal with manual vs auto trans with those moroso's. ..say my car made 710 moroso hp auto ..but if i put a manual in it

and it traps another 3.5-4mph..it would show more hp on a moroso, yet no make anymore, is that correct or how they work?

i have seen them, they are a basic sliding rule thing

cheers

darren

Edited by jet_r31

what the deal with manual vs auto trans with those moroso's. ..say my car made 710 moroso hp auto ..but if i put a manual in it

and it traps another 3.5-4mph..it would show more hp on a moroso, yet no make anymore, is that correct or how they work?

i have seen them, they are a basic sliding rule thing

cheers

darren

I'm not really an expert on the subject but if you take out an auto and put in a manual, aren't you going to make more HP at the wheels?

This would also coincide with your higher trap speed

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