Doesn't the 540 add 11.5:1 piston or it's 11:1?below are the final details surrounding my build:
540 kit (11:1)
806 cam
moto headz porting
41.5 mm taper bore (sredrum)
jd jetting r&d power bowl kit
havent made any decisions on exhaust at the moment. i am hoping to have all this completed by the group ride in june!
i will have sredrum bore the carb to 41.5mm. i have thought about bumping the compression to 12:1, it will all come down to what piston comes with the ktm kit. all i know is that i am done buying race gas, so anything over 12.5:1 has a tendancy to detonate during the hot texas summer heat.Sounds like a good build bronson. I personally would also bore the carb and try to bump compression up another point or so though...
who knows, i think you may be right. i am just going to use the piston that the kit comes with...Doesn't the 540 add 11.5:1 piston or it's 11:1?
Ok, i just thought that you changed the compression. The piston that comes with the kit makes 11,5:1who knows, i think you may be right. i am just going to use the piston that the kit comes with...
Np. Btw are you thinking about stroking it in the future? I have read that the revs come down, about 8500rpm but if we bore carb, put bigger cams etc, it'll do fine and you have just done thatsweet, thanks for the info.
613cc
78mm stroke
100mm bore
SMR tall cylinder
11-1 compression
My porting
8/07 cam
+ 1 valves
44 taper bore FCR
my intake system
Acrapovic full system
65.1 hp 52 ftlbs on pump gas, and 66.3 hp 52 ftlbs on U4
Not bad for a pump gas build.
Moto Headz Racing
I have 2 of them with the same build. One for sale and one Im keeping.And you still have it for sale right? damnnn awesome machine![]()