Here's the setup I am running right now. Lights conversion-crank is turboed,streamlined and "ramped". Ramping was done with high-density,chemical resistant RTV. PTO is stock. I replaced flywheel with K&B version. Original head clearance was over twenty thousandths. I set it at ten thousandths. I am currently making a new head button to use std glowplugs. I had trouble with the original carb,so I replaced it with a D&J carb. I am running 65% nitro with 9% oil. I am running an "Equi" big belly pipe with 3/4" removed from the flat band. Prop is an Octura X450 that is back-cut and detounged. The boat is Tommy Lee's wood oval boat with the turn fin. I ran the boat with my K&B 45 that I ran at the WTC last year (tied with Jay for first,dumped in the run off). I then switched to the Novarossi .46. I ran it awhile to get some time on it and to get the needle. The boat is noticably faster with the Novarossi. With a little more break-in It will be a "rocket".
Bob, that sound great! Be CAREFUL with that low oil (i hope is has some castor in it)...we have stuck a couple of pistons running low oil on new engines once we really leaned on them. Can you tell why you were having trouble with the Nova carb? Did you remove the low speed needle? I have the std plug heads instock now if you need another one.
Thanks for the feedback on the header!
Glenn
Glenn we are having problems with the carb as well. When you tighten down the pull bar that snugs the carb into the engine, the barrel locks up and doesn't turn.
-Jr.
Jr, that is a weird one...I have never heard of that, so I just took one of my motors and tightened the draw bar as tight as I could get it (bent the wrench) and the carb still feels completely normal. If you want to send that carb back so I can check it out I will be happy to send you a new one. Have you been able to use it at all? Does the carb seems to be working OK for you? Is it still stock or did you remove the low speed needle? I know Martin has been using the prototype Zoom, but I have been using the stock one (with the low speed removed) and have been very happy with it.
Let me know if you want me to get a new carb on the way to you.
Thanks for the feed back!
GQ
Wow talk about customer service. Glenn is on top of things. Haha
Yeah the carb is completely stock from the factory. When we tightened the drawbar it would lock up as it was. The only thing that has been done since is to try to wet sand the barrel to help free it up some but that didn't seem to help a whole lot at all.
We are using it, but have to be careful because it occassionally sticks when running so you just have to be aware of "OFF" on the throttle trigger. lol. But I'll shoot you a PM and we can figure something out. Maybe I can send it to you for you to look it over.
Other than that, the engine is running GREAT and Mark's crank is working out perfect.
Thanks,
-Jr.