How quick is your car?

[alaric]

A freind of mine has just been showing me a performance calculator. Although it can't take everything into account, it does seem to be quite close for our standard cars.

Here's the link:
http://www.letstorquebhp.com/calculator.asp

e.g. Audi S4, 265bhp, 4wd, 1512kg -> 5.58, should by 5.6!!!

I put in 140bhp at the flywheel for my +2, and a weight of 850kg, and got 6.4sec out. Then I added in my weight, and it went up, somewhat!! If I put in 126bhp and 850kg I get 7.02.

What a nerdytastically great tool. I thought people might find it amusing.

Sean.

[tdafforn]

Strangely the power to weight ratio of my daily commute (pug 106 Diesel) is too low for the web site to give me figures!
Tim

[alaric]

So what's the web site telling you about that car then?

I found the same with our Golf TDI... if I put the power up to 120bhp then it starts to play.

[msd1107]

If you want to know the actual performance of your car get one of these

http://www.race-technology.com/ap22_8_991.html

The cost is reasonable and a group could share the unit.

David
1968 36/7988

[cabc26b]

That was fun , at 185 hp and 640 KG I get 4.14 zero to sixty , which is about right since i have no problem out draging an elise out of a slow corner....

[alaric]

I found it illuminating, that in order to lop 0.5 secs off my 0-60 time I either had to go on a diet and lose 70kg - which is unlikely to happen, if I'm really honest with myself - or bump the bhp up to 152 with a new set of cams, or consider converting to a Spyder chassis, which, I think, is lighter than the original, or find other cunning ways to reduce the weight of the car.

On the Audi S4, a ?400 chip replacement puts the power to 315bhp, and the tool says that'll put the 0-60 to 4.77 from 5.6. That's almost into V8 Esprit territory from an estate car! My chum is seriously considering it...

I think it's a useful tool to asses mods etc and their bang for buck.

Just need to get my car on the road now so that I can see how close it is to the prediction - I'm due to phone in the morning to see if the body's ready. If it is I might get it on the road in time for going to Hethel 3rd week in May - bit of a challenge but I can at least try.

Sean.

[twincamman]

just as quick as sh4t off a shovel ed