ORIGINAL: blw
You would be safe to figure that the 90R3 will be about the equivalent of the Saito .50 or maybe the .56. I have the 170R3 and it is universally accepted to have the power of a 1.20. Nice engine and let us know how you like it.
--------------
Hmm, you may be right on the power output, Barry.
In that case, bash a Super Sportster .40 or Big Stik .40.
I've been thinking of putting my R3 1.70 on a model that looks as though it is made for an inline engine, but using a ring cowl instead. That would look neat. I should have bought one of those larger Super Sportster kits a while back, the .90 to 1.20 size. That would probably look great with the R3 up front. Sure would sound great - as we all know.
Ed Cregger