I have made leaps and bounds in my project. The things I changed were carb settings, cooling water flow, gas tank check valve and pump nozzle size. This thing is starting to rip, and I like it! So my carb settings needed a much lower pop off, I read for days and ordered a 95g and 2.0 needle seat. Installed these to get a pop off pressure of 16psi (lower than expected) LS120 and HS145. I then took the aluminum nozzle apart that I bought on ebay and started measuring, my stock nozzle was 84mm this one was 80mm. I rolled up a piece of 1/8" aluminum to be 84mm and modified the aluminum nozzle. Because this nozzle was originally to small, it was causing low speed cavitation and an awesome top speed (not what I wanted).
The pics are before cutting the nozzle to length and adding repads for tapping m6x1.25.I then moved on to the cooling system, because I installed dual cooling and I'm running in 50 something degree water the engine was never getting warm. I used small ball valves to control the water flowing though the dry pipe jackets and out of the head to the pisser. In addition to this I tapped into the water flow (pre exhaust manifold) and routed it to my water box for less sound (with ball valve).
I'm also experimenting on where to place the gopro, I had it on my had pole and the video is shaky but you can tell this think is starting to rip! The powerband hits right away and goes all the way to rev limit.
After making changes to my cooling system I used an inferred thermometer to check exhaust and engine temps. My engine was anywhere from high 130's to 158 depending on where I shot with the thermometer. The dry exhaust was much hotter (as planned with ball valves) in the 180 degree range. It seems as though things are really starting to come together.
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