R34 Gtr On Dyno

[GTR747]

This is nuts...

http://www.datatype.net/gtartdynoday/blue34quartersim.wmv

600BHP

Edited January 23, 2008 by GTR747

[lahsak80]

dayummm

[Owgasm]

haha its spinning on the dyno.

sounds good. Exhaust isn't very loud though. I like it. Silent but deadly.

[GTR747]

gotta love those flame spitting, tyre destroying, clutch wearing GTR's hahaha

[full house]

lol! love it! spinning on the dyno!

[R31Nismoid]

spinning is just cause the guy is treating the dyno like its a race track, kinda silly really

[m3gtr]

spinning is just cause the guy is treating the dyno like its a race track, kinda silly really

Not as silly as you think.

The car is strapped in quite nicely and he was launching it because they were doing 1/4 mile simulations with the guys in the background going " 10.68, woohoo!" obviously referring to a 10.6 down the strip.

i think thats a great idea for gaging a cars potential 1/4 m times.

whats silly about it? I just saw a vid of a 2500 HP supra on a dyno. I think if a dyno of ANY make can handle 2500 ponies, surely, it can handle a standing launch from a car only making 600hp..

#braces for inevitable admin backlashing#

Edited January 24, 2008 by m3gtr

[R31Nismoid]

I dont really see how a dyno simulates a 1/4 run... even close.

surface is different, car has added force via straps, no wind resistance and so on.

Hence i say its kinda silly as it doesnt really prove a thing.

[VB-]

traction levels would be completely different and there would be issues with wheelspin while measuring the distance/time

[rev210]

I think it's clever to bring accelleration into a tune. Certainly analysing the 'time' delta of mods is just as meaningful as horsepower. It picks up non-horsepower changes as a result of things like changes in rotational inertia and throttle response mods that are invisable only looking at horsepower. Enrichment fuel mixtures can play a part in response on and off the throttle pumping and can add precious milliseconds.

The time measurements also remove the 'happy dyno' to some degree, as we can measure the time 'in gear' to go from one speed/rpm to another. Things like gearing and rim/tyre diameter can then be given a chance to factor into the equation.

Certainly doesn't fully replicate on track logging of conditions but, in terms of tune analysis it's the next best thing.

Edited January 26, 2008 by rev210

[GTR747]

hahaha, screw it if its not worth anything towards the tune - its just fun to watch !!!!

[VSPEC-33]

You should actually be able to add extra load to the dyno as the speed increases to simulate the power lost by wind resistance. Whether or not they did it to get that time is another matter......