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How to work out 0-100 time from drag slip?

Abo Bob

By Abo Bob,
in Motorsport Discussion & Builds

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Abo Bob Grand Master

Abo Bob

Posted
Posted

I'm told that the boffins can work this out using your 60' time and I can't remember what else.

Can anyone figure mine out for me and/or show us all how it's done?

http://www.skylinesaustralia.com/forums/at...achmentid=25227

Thanks a lot.

rs73 Grand Master

rs73

Posted
Posted

This could be tricky, but can be calculated providing your car can maintain constant acceleration rate from start to finish line. However it's almost impossible due to:

- Gearing Ratio (accelerating on 1st, 2nd gear is faster than 3rd, 4th etc)

- Aerodynamic Drag (the higher the speed, the greater the drag is)

- Other factors (track condition, tractions, wind, etc)

- Human factors (Driver skill, etc)

But for the heck of it if those factors above (and any other factors) are non-existent:

Say you got a 1/4 mile time of 12.5seconds (t) and your terminal speed (v) is 180km/h.

So:

v = 180km/h = 180,000m/3600sec = 50m/sec

Thus:

acceleration (a) is v/t = 50/12.5 = 4m/s^2 (4 meters per second to the power of 2)

Therefore your car's 0-100km/h time:

v1 = 100km/h = 100,000m/3600sec = 27.78m/sec

a = v1/t1 --> find t1 required to reach 100 km/h

4 = 27.78/t1 --> t1 = 100/4 = 27.78/4 = 6.945sec

:Nerds:

rs73 Grand Master

rs73

Posted
Posted

Well you obviously did not read my post properly:

However it's almost impossible due to:

- Gearing Ratio (accelerating on 1st, 2nd gear is faster than 3rd, 4th etc)

- Aerodynamic Drag (the higher the speed, the greater the drag is)

- Other factors (track condition, tractions, wind, etc)

- Human factors (Driver skill, etc)

Emre Proficient

Emre

Posted
Posted

Here is the easy way to calculate it.

Click on this link, have a quick read, than put your numbers up.

If you want a challenge than go to this link.

I put your numbers through this extremely complicated calculation and got a reading of 5.31 sec.

:D

PS: Do not take any of the results as gospel as they are just a calculation.

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