Starting to build me SX-R AGAIN

kx454

kx454

Location
Sweet Valley, pa
this is what my ski looked like at the beginning of this year, as of right now she is alittle more beat looking, turf is all faded, scratches and scuffs everywhere, chinpad cover has a rip in it, you know the normal wear and tear. i have got an extensive amount of work to do on this baby and most will start after the daytona ride, but i started getting into it this weekend...

current setup
mildly ported stock bore/stroke sxr
milled stock head 175 psi
taper bored dual 46mm mikunis
jetinetics lightweight charging flywheel
pro k filters
wet pipe
tdr water box
-2 umi pole -1 blowsion steering 0 degree bars
skat 13/18 cutback prop
2 5/8" set back motor
a few other things like bilges and such but you get the drift

coming after this winter

motor

bored to ***cc's :sneaky:
port job
possible girdled head of unknown brand (what do you guys recommend?)
will still run mostly pump gas

thinking of switching to a dry pipe, (thats the reason for the girdled head) have been talking to some people about it, and you can get more of a hit out of it and i already have an ecwi system to get my bottom end back. if i sold my wet pipe it wouldnt be a big loss to buy a used dry. what do you guys think about this option?

hull/pump/everything else

i am going out to watcon over my turkey break and i will learn how to split a hull and other things sooo.......

splitting upper and lower hull(can't wait for this)
shortening hull 2 1/2" or so
getting rid of rear exhaust going front only
dual one way valves
getting as much weight off as possible everywhere
keeping bottom deck black, but having a buddy paint the top, mostly green of course
returf/revamp footholds (make alittle smaller)
fix dings, scratches, and cracks, and some unecessray switch and bilge holes...


tell me what you think about the dry pipe idea, i hear they make more power on modified motors? toss me suggestions and whatnot, but i dont want to hear by a yamaha.......its just out of the question

stay tuned for the laserjet build :friday:
 

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the only couch rider

the only couch rider

Location
Jersey
kx454 said:
this is what my ski looked like at the beginning of this year, as of right now she is alittle more beat looking, turf is all faded, scratches and scuffs everywhere, chinpad cover has a rip in it, you know the normal wear and tear. i have got an extensive amount of work to do on this baby and most will start after the daytona ride, but i started getting into it this weekend...

current setup
mildly ported stock bore/stroke sxr
milled stock head 175 psi
taper bored dual 46mm mikunis
jetinetics lightweight charging flywheel
pro k filters
wet pipe
tdr water box
-2 umi pole -1 blowsion steering 0 degree bars
skat 13/18 cutback prop
2 5/8" set back motor
a few other things like bilges and such but you get the drift

coming after this winter

motor

bored to ***cc's :sneaky:
port job
possible girdled head of unknown brand (what do you guys recommend?)
will still run mostly pump gas

thinking of switching to a dry pipe, (thats the reason for the girdled head) have been talking to some people about it, and you can get more of a hit out of it and i already have an ecwi system to get my bottom end back. if i sold my wet pipe it wouldnt be a big loss to buy a used dry. what do you guys think about this option?

hull/pump/everything else

i am going out to watcon over my turkey break and i will learn how to split a hull and other things sooo.......

splitting upper and lower hull(can't wait for this)
shortening hull 2 1/2" or so
getting rid of rear exhaust going front only
dual one way valves
getting as much weight off as possible everywhere
keeping bottom deck black, but having a buddy paint the top, mostly green of course
returf/revamp footholds (make alittle smaller)
fix dings, scratches, and cracks, and some unecessray switch and bilge holes...


tell me what you think about the dry pipe idea, i hear they make more power on modified motors? toss me suggestions and whatnot, but i dont want to hear by a yamaha.......its just out of the question

stay tuned for the laserjet build :friday:
Click to expand...


nice plans.... although i would have went somewhere warm over winter break to learn how to do that
 
Matt_E

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Very nice plans!

You probably told us before, but here I ask anyways...how did you go about moving the motor back?
 
F

FL-cracker

X-H2O
Location
old exit 72 Melbourne
From what I have heard, it is a good idea to run a Girdled head even with a wet-pipe... SXR cylinders are known to crack just like a 61x 701cylinder from what Kevin Collins at \Legdrag told me.

A shortened hull will help with flatwater BF's only!... And the hull Josh Lustic is Flatwater backflipping is a standard legth Trinity SXR Hull.... there is reason for that, believe it or not.

You got all the right ideas, may want to go with a smaller tank as well.

If it were me, I would grind down like half the material of your stock hull, and reinforce the entire thing with Carbon.... you could probably ditch 20lbs and still be stronger then before.

Then maybe a Trinity Hood, and you would be pretty set-up for flatwater!
 
WFO Speedracer

WFO Speedracer

A lifetime ban is like a lifetime warranty !
Location
Alabama
Let me know if you get that Laserjet shaft resplined for the 650-750 style pump,I am looking for someone to do one as well,I would really like to do a 650 style pump in mine while I am idle this winter.
 
IceRocket1286

IceRocket1286

Site Supporter
Location
Metro Detroit
Dry Pipes make more horsepower. I rode identical skis with dry and wet pipes, and the dry pipe with water injection is much better all around. Hits as hard or harder, and still has great top end.
 
Last edited:
kx454

kx454

Location
Sweet Valley, pa
hmm thanks for the tips guys. also i am gonna rock a TBM super pump cone (got word of one cheap).

i am splitting the hull for two reasons,

1. makes it alot easier to do what FL-Cracker says, and it makes it easier to install one ways and such, plus its allows me to build it how i want it
2.never split a hull and i dont know gives me something to do over the winter
 
kx454

kx454

Location
Sweet Valley, pa
Matt_E said:
Very nice plans!

You probably told us before, but here I ask anyways...how did you go about moving the motor back?
Click to expand...

i simply made small pilot holes in the bottom deck to see how far back the aluminum mounting plate is, i then drilled and tapped new motor mount holes as far back as possible. then drilled and tapped the front motor mount holes, mocked it all up and drilled the bed plate to fit the rear motor mounts because the aluminum did not go back the full 2 5/8 inches. then i had a welder i know cut and weld the driveshaft, then i cut and rewelded the battery tray back an extra inch because the battery hit the throttle drum. and finally i bolted my e-box directly to the bulkhead so it would clear the engine/pipe. pretty straight forward really.
 
SXR-FOREVER

SXR-FOREVER

Finally Flippin
Location
Lake Minnetonka, MN
want to, but wont be able to afford it if I dont go down in a group so more or less waiting for everyone else to make up their mind. Not going to make the mistake of not bringing my ski again.

Is Corey shipping you the laserjet hull or you coming up here to get it?
 
Scorn800

Scorn800

Ride for life
Location
North NJ
brett said:
no one rides kawis out here, must be an east coast thing...:pokey:

j/k. cant wait to watch this years build, good luck!
Click to expand...

What about Matt Smith? he a westsider who rips a sxr
You west coast guys always forget about him. j/k
Kawi-4-life
 
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