7.5 engine chioce

[lohring]

What have people been running for a 7.5 mod engine? In the Northwest the Nelson seems popular, in California the Johnsons and Mark Grim modified the Rossi into a good engine, and in the Southeast, Carl Ring wins with the CMB Evo conversion. Have any groups been racing these engines together?

Lohring Miller

 

[htbboats]

I've run all of these motors except the CMB .45. I think they are all very close and it would probally depend on who has the best setup/prop on which one is the faster motor. However I have seen the CMB .45 that Ernie Lafuer does run the fastes top end speeds. I just don't like the belt starting. Not to say that at some point I may be made to like it if you know what I mean.

Any of the other motors will run in the low to mid fifties and that in most races can win if the driver does not beat himself which I do a lot of the time.

Mark/HTB BOATS

 

[Brian Schymik]

Ernie's Straightaway speed at the 2002 Internats trials was 53.79 mph. This was the Fastest D tunnel speed. Brian Loy was 2nd at 52 mph. I think he had a K&B???

FYI

Brian