I bet grandpa is half deaf as well! Lol.

The RR and Allisons are all over the spectrum in tractor pulling. Extremely interesting engines.

They are very cool engines for their time. We have around 75 of these engines laying around here. My boss has cornered the market on these engines and P51 airplanes and parts. We manufacture many of our own parts also to keep these engines going.

A Rolls Royce Griffon that was through my machinist's shop a few years back.

Kevin

Man, that thing has some throttle response! My neighbors really wouldn't like me if that was in my shop. LOL

Any idea which country that was in? Finland, Norway, or ?

I have always wanted to build a Hot Rod with a RR Engine, but the cost of a engine is CRAZY!

Old magazine articles on The Green Monster dragster said those engines were rated at altitude, and the horsepower would be twice the rated number when used on land.

3000 X 2 = a whole bunch.

Before that, faster cars were made with the WW1 "Liberty" V12 engine.

The company on the sled is in Germany.

I remember seeing a lot of WW2 aircraft engines used in the old unlimited hydroplane race boats, Rolls Royce and Allisons.
I 'm wondering how many different liquid cooled aircraft V motors R.R. made during the 1930 and 1940 before they became obsolete due to the Jet engines being developed?
Which one was the biggest and which one made the most HP?
I got into flying in 1988 after getting pissed at NHRA and its politics and learned that all the current aircraft engines back then were low RPM motors, all under 3000 RPM for peak power
Some of the airplane racers would turn up the governors to allow some of their motors to rev a little past 3000 RPM up to 3200 RPM. The actual prop tip speed was the limiting factor due to potential prop tip damage if it exceeded supersonic tip speed

I spent a little bit of time in Geramy back in 1967/68. The announcer is not speaking German, hence my question