Ok so I have a SN I picked up and just got a free 650 motor to go in the SN hull while I rebuild the locked up 701 motor. I wanted to have some fun with this and see the kawi 650 exhaust mod that I seen people put on their motors. Well the 650 motor came with a coffman exhaust and a skat 9-17 impeller that I am also going to add on the SN. Well the coffman was on a wave runner and it's the style that wraps around the front of the motor and only way to make it fit was to bypass the water box. I was thinking of doing that since it is rear exhaust. Well I didn't want to take away from the back pressure and possibly take away from the low end.
I have a stock 650 x2 that I can pull the exhaust from and do the swap with the coffman manifold. I also have a jet pro pipe that has a larger chamber then the stock pipe. Well is the larger chamber going to help me on the low end or take away from it? Trying to see which route to go with either pipe when I drop in the 650 in it. Eventually the pipe is going to be on the 701 and match the porting on it when the time comes. Just want to see which way would be best to go with right now with the 650 I am using for now. Any feed would help me out on what to do with this SN for now.
I have a stock 650 x2 that I can pull the exhaust from and do the swap with the coffman manifold. I also have a jet pro pipe that has a larger chamber then the stock pipe. Well is the larger chamber going to help me on the low end or take away from it? Trying to see which route to go with either pipe when I drop in the 650 in it. Eventually the pipe is going to be on the 701 and match the porting on it when the time comes. Just want to see which way would be best to go with right now with the 650 I am using for now. Any feed would help me out on what to do with this SN for now.