engine size?

[aerosam]

Originally Posted by Davey

Oldest saying in motor vehicle engineering is "torque turns wheels" .

D.

I thought it was "There's no replacement for displacement!" either one works though

[twinturbo]

Originally Posted by aerosam

I thought it was "There's no replacement for displacement!" either one works though

Tell that to the guys that built the old BMW M10 based F1 engine. That only displaced 1.5L but produced 1500HP!

Or the guys building the Qualifying engines for the Sierra RS500 GroupA. They Produced only ~650BHP from the 2L engine.


Realy, there's no replacement for ..... displacement, a well designed inlet and outlet, combustion chamber, forced induction, fuel control.

Just look at some of that big old american iron 5L engines producing sub 200BHP...




TT

[aerosam]

true - but those were professionally prepared, to last just the one race. It goes back to my original post about power vs cost/reliablitly.

The Americans have never worried too much about getting massive power from displacement, they just shove superchargers on. They haven't so far had to worry that fuel costs lots of money. We went to Florida a few years ago and rented a Chrysler PT Cruiser with a 2.4 Turbo engine that produced a paltry 145bhp, and still only managed 22mpg. American engine design is just light years behind European and Japanese.

[twinturbo]

t power vs cost/reliablitly.

Yes, very true . 2.9 12V Ford engines don't go wrong. Make them into a 24V for an extra 50BHP and they sadly require careful checking and maintenance..

the DOHC 16V produces ~150BHP and is OK apart from head gaskets and other minor bits...

TT