Caterham USA's R400

[BobDrye]

Thanks Hank, I was getting 407 but I was using 2,200 for the tonne.

 

Using that formula for my car I get 491.5 rwhp/tonne. Mazda, Bob D. and some others must be somewhere north of 600 hp/tonne.

 

As I have said before, too much horsepower is just about right.

 

I'm just a "Red Neck" and we say that 2.5 lbs per hp is just right! We like mud and Sprint Cars are @ 1.5

 

My sister is pregnant and I am all excited, I didn't know what sex the baby is going to be and I'm anxiously waiting to see if I will be an Aunt or an Uncle. lol.

[slngsht]

Skip, using Hank's equasion, I come up with 604 for my car. With stickier tires now, I'm definitely feeling the need for a little more

[Hank]

slngsht: You might want to change the 2204.6 lb in my equation above to 2000 lb for a ton and not a tonne. Keep it English units.

[slngsht]

heh... alright. one other thing. I was using estimated engine hp, not rwhp.

 

so, using rwhp, and 2000 lb/ton, i get 485

and for good measure 535 hp/tonne

[scannon]

Every published report I can recall on hp per ton has used the tonne.

 

The also use brake hp per tonne on Top Gear but with the British accent it is difficult to determine whether they are saying ton or tonne.