Is BHP always measured and quoted at the flywheel?

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

aust_powers - 28 Mar 2006 15:37 GMT

Just interested, If a car is quoted as being 220bhp, that's at the
flywheel, not at the wheels? which in real terms would be lost through
friction, clutch, transmission, etc.. So in real terms it would be
about 170bhp at the wheels?

Austin

Reply to this Message

Ian Riches - 28 Mar 2006 15:49 GMT

> Just interested, If a car is quoted as being 220bhp, that's at the
> flywheel, not at the wheels?

Correct

> which in real terms would be lost through
> friction, clutch, transmission, etc..

Correct

> So in real terms it would be about 170bhp at the wheels?

That's a hell of a lot of transmission losses, IMHO. Losing 23% between
flywheel and wheels is not good, unless perhaps it is a 4x4.

Have you had the car measured somewhere as 170bhp "at the wheels" and
told it is making 220bhp "flywheel"?

Have a look at:

http://www.pumaracing.co.uk/coastdwn.htm

Ian

Signature

Ian Riches
Bedford, UK

Reply to this Message

aust_powers - 28 Mar 2006 15:54 GMT

>Have you had the car measured somewhere as 170bhp "at the wheels" and
>told it is making 220bhp "flywheel"?

No, was browsing the figures on:-

http://www.online-presence.co.uk/_coupe/

Austin

Reply to this Message