waxhead
wannabe backflipper
- Location
- gold coast
Awesome
Sx-r 260
- Thread starter Austin_landers
- Start date
- Location
- Wichita ks
Added a 3rd cooling line to the exhaust and heat wrapped it .
Added a 3rd 1/2” line off the pump . Now have 2 1/2” feeding the engine and one just for the intercooler .
Got it on the water for a test ride . Water conditions not good with 30-40mph winds . Stock prop and intake grate .
64mph with the stock 12/17 sxr prop
I will have a 17/27 prop tomorrow to try . Hoping 10 pitch jump on the trailing edge gets me another 10mph
- Location
- Corona, California
Dang that’s sick ! Videos if you could I want to hear and see it rip !
- Location
- Wichita ks
Installed 17/27solas , now getting 68 mph but low on rpm. Currently pulling 73-7400 rpm and 9lbs boost . Should be 8-8100 and around 12 lbs . Going to repitch the trailing edge to a 24 and re-test.
- Location
- Wichita ks
Did some pump tuning at the end of summer and was able to get 7800 rpm and 71.1 mph with good water conditions . I still am 3-400 rpm and 1 psi boost low . Going to add a 6 degree ignition advance to the ski and I should pickup another 300 rpm . I think 73 maybe 74 is achievable with good water conditions. 
- Location
- Wichita ks
Warm weather is here in Kansas so time to starting wrenching again. Picked up a 2019 gp1r hull in January on a vacation to the west coast. Got another running ultra 250 from a copart insurance auction. I’m hoping I can take it up a notch and build turbo , aftermarket ecu 1500 gp1r.
Attachments
- Location
- Cleveland, Ohio
As I’ve been following this thread i was thinking to myself that you should to swap everything into a gp1. Can’t wait to see how this one turns out!
- Location
- Wichita ks
I was originally going to do that but none of the Intercooler piping or exhaust was going to fit. Also the top exhaust manifold won’t fit under the hood liner. So I’ll just keep the sxr together and it will be a fun 70mph ski I can cruise the lake on. I have plans to possibly make a removable seat frame with a 3d seat for lake cruising.