SX/SXi/SXi Pro Help on mods?

[jjk8]

My brother in law in currently riding an 01 SXI Pro. He is considering dumping the ski and getting a superjet after riding mine. Although that doesn't break my heart, I'm thinking he has some untapped potential he could unlock in his SXI, maybe I'm wrong. It is bone stock and I think the jetting is way fat,, I realize we need to get this figured out but I'm having difficulty finding information to starting a baseline on the jetting. We ride at approx 5-6000' of elevation. Are there cheap mods that can be done to open these machines up? He made mention of the weight difference between the two machines as well. ThX..

 

[sxipro02]

FP limited pipe hands down best power adder
9/17 skat swirl big hub impeller TBM pump cone/stuffer works well too
R&D aquavein intake grate
mill the stock head for better compression
advance the timing if WOT isnt important to him. I dont suggest it but others will

 

[sxipro02]

BTW, If the ski is stock the jetting is probably fine but you might have carb issues causing it to run rich. I have been messing with mine for about two years now trying to get it to run right. I finally found the issue to be the needle and seat hanging open off throttle and causing it to run rich all the time and it kept me from tuning it in after all my mods. My ski was basically stock when it started and now I have countless hours of time and waaaaaaay more money than I will ever admit put into it trying to get more power. wish I would have rebuilt the carbs a few years back and skipped half the mods I did lol.

 

[jjk8]

FP limited pipe hands down best power adder
9/17 skat swirl big hub impeller TBM pump cone/stuffer works well too
R&D aquavein intake grate
mill the stock head for better compression
advance the timing if WOT isnt important to him. I dont suggest it but others will[/QUOTE






I dont think he wants to spend more than around 500 for now, so the pipe may have to wait. In what order would you do the mods you suggested? Also is there anything there can be done to trim weight?

 

[97superjet]

500 wont get him that far on parts...maybe a decent used exhaust and an intake grate or something...I had a fully built race 750sxi with every bolt on possible and I didnt like it compared to my stock (at the time) SJ...the 750 did have more top end than my SJ did but didnt have even close to the low end...my SJ with a FP, hooker impeller and xmetal steering is a waaaaaay better ski..tell him to get the SJ

 

[sxipro02]

FP limited pipe hands down best power adder
9/17 skat swirl big hub impeller TBM pump cone/stuffer works well too
R&D aquavein intake grate
mill the stock head for better compression
advance the timing if WOT isnt important to him. I dont suggest it but others will[/QUOTE






I dont think he wants to spend more than around 500 for now, so the pipe may have to wait. In what order would you do the mods you suggested? Also is there anything there can be done to trim weight?

FP limited is the best mod for power. If he has 500 to spend Id spend it on that and a intake grate.

 

[PWCSAR]

Rule of thumb.. Double your budget on these things!!! Definately find a used Factory pipe and aquavain.. Will need to rejet for pipe but that's cheap.. He'll notice a big diff right there... Or do steering (complete) Rideplate & aquavain..

 

[sxipro02]

^^^ more than likely wont need to rejet, the pro's came pretty rich stock. may need to go to 80 pilots if anything