- Location
- United States
Also If I switched over to the 61x top end on a 6t2 bottom would I need to change anything else?
Super Jet 62T over ported?
- Thread starter superjetchet21
- Start date
- Location
- baldwin ny
wizard say bore shaped like egg+ round pistons= low #s
I made similar mistake, professionally ported motor then I changed head. Dome size giving me much lower compression than suggested. On top of that the cylinders were decked giving me a very tight squish of .035" 155 psi compression. So I thought why not lathe out the squish area to gain .045" squish and check for loss of compression. took out .010" from dome and lost maybe 2-3 psi. I was thinking on getting higher compression domes and resize for squish. My ? is. will a high ported cylinder with high compression make as much LOW end power as a stock 61x cylinder, all things being equal on compression for both ported cylinders ?
So I'm stuck with a fast ski with little gain on bottom end. ? I was thinking that a high ported 61x would be about the same as a stock 62t. Or am I starting to talk out of my ass? Seriously, will I get any performance gain going to 180 psi vs what is now stock 155 compression?
That depends on how high the ports were cut. You need to get the pump load down first, it may have acceptable response. It take a lot of $$$ to overcome an over loaded pump.
measured with calipers. 1.465" or about 1 15/32" from top of cylinder to to top of exhaust port. The motor is piped and proped wtih 10-16 hooker. lighten flywheel and 38 carbs ported. msd, ewis, and so on. It hooks up much better than stock that is for sure. I ride flat water but following close to anther ski the prop doesnt wash out like stock. always wonder what i gave up with ported cylinders. Now that I know there is different porting for freestyle. Fast though. gps 49.6 mph. 6900-7000 rpm.