Originally Posted by
cherokee180c
I only added the winning comment to let others know how good these motors are. I have yet to get beat on HP alone and my 7 port .21 w/053 pipe pulls almost every .28 at the track, including high dollar modded motors, down the straight away.
My engine did get hot at the end of the main. It was around 255 deg. F at the end of the run. It normally runs around 230 deg. or below, which it did in the 5 minute qualifiers. It was definitely lean cycling down off the HSN, which made it a bi_ch to drive. I don't think the neddles are turning as it seems fine for 10 minute runs. I am using Byrons Gen 2 30% fuel, which I love, and an OS P7 turbo plug (It was around 75 degrees and very sunny on Sunday). Again I have no prior nitro experience except with Helicopters and planes so I really don't know what I am doing with the engine, but I am an old ex sponsored electric on road guy so I have some good technical ability. I did notice a bit of dirt buildup around the back plate screws, which may have adherered to some oil leaking out, so I tighted the plate screws up a bit. They probably turned another 1/8 turn until I thought they were really snug. How do I pressure or leak test or should I just seal certain areas?
Thanks
you may want to seal up the back plate and carb if havnt already done that i use rtv silicone gasket sealer and it works great also try changing fuel lines on carb and exhaust side. my go .25 6 port runs 250-260 after 45 mins running but runs around 230-240 in 7 min heats that we run thnx will g