New Style Russian motor

[Don Ferrette]

"Dont tell me you are going to suggest that the cowl helps the stability of the boat????"

Seen it more times than I care to think about!

 

[EatMyShortsRacing]

Don,

Sorry, was having a joke with Ian

As soon as I lose my cowl on the twin 90 rigger I either bring it in immediately or look for a place to park it. not much of a cowl but boy does it make a difference to the boat handling!!!

EMS Racing too subtle for my own good

 

[Don Ferrette]

I know you were Craig, so was I!

 

[Ian Inverarity]

Yeah, well I deliberately designed that cowl to make down force, so when it came off it was a p[roblem. A bigger problem was the tank followed straight after making the boat very light at the front and over she goes....

Then I went to the EMS style cowl clips and never had the cowl come off again!!

Craig,

I think all the HP's have always had needle roller top ends, I had one of the first batch (Which was actually a bit more than 15cc!) and it had needles, but the older LS's or what-ever they were called back then had bushed rods. You may still be able to get them.

The only problem I can see with the top end needles is if they are run way too lean (over-heat, but so does the big end, look at your old rods I sent you!) or if there is detonation. If there is detonation the needles pound into the surface hardening of the rod. My A100 rod which blew had signs of that.

Change the mono motor to the same specs as those twin motors for even more fun! B) See Jerry has released a new larger mono for 90's and 100's? 44" long. Might even take an A100!

Nitrocrazed racing: Thinking the un-thinkable.....