skat trak prop question

[jetracer800]

i have a limited 96xp in it is a 17/22 swirl im running 185psi in each cylinder, my rpms are only 6530 will a super slimline 17/26 bring my rpms up along with a little more top end, im at wits end with my boat my carbs are jetted right and everything else is good, i was just wondering about the 17/26 skat cause my buddys got one for sale, thanks i know stock rpm is around 6700 6800 or a little more last time i checked

[quickSX/XP]

I had a 17/26 skat on my 96, I am going to run a Solas XO, I would be willing to part with my skat for a very reasonable price but I was not running a tach at the time so I do not have any rpm info. Email me if interested

[Bill O'Neal]

When you say you have a "limited" 96XP, do you mean it has a pipe and the other modifications that make it an IJSBA limited racing boat?
What parts do you have that ake it a "limited" ?
Your rpms are way down for a 96XP with a 17x22 swirl impellor in it.

Going to an impellor that is that has that much more pitch is usually not a way to increase the rpm, even though you can run a slimline with a bit more pitch in some cases.

[Jim '97 GSX]

A stock boat can spin a 17/22 swirl 6900 rpm. I would say you have an impeller just the opposite of what my brother had. His impeller was purchased new from scat trac, stamped 17/22 (swirl) and he had NO problem at all spinning it to 7150, the rev. limiter and I could easily catch him on top end w/ my 17/22 swirl turning 6950. Same set ups. He ended up sending the prop out to Scat trac for a 1 degree increase on the leading and trailing edges to make a 18/23 out of it as Skat trac called it. Now turns 6950 +/-. I know that there is something wrong w/ this impeller since we also have a 17/23 and it turns 6800 +/- 50.

The good thing about your impeller, you know what rpm you can turn it. You can send it out to a prop bender w/ a good description of what it is doing and what you want it to do. A good bender can take it from there and tell you what you really have and what it is you are getting back. :D

[jetracer800]

YEAH I DIDN'T TAKE THE PROP OUT BUT MY BUDDY LOOKED AT IT FROM AN ANGLE AND SAID IT WAS A 17/22 NOW I USED TO HAVE A 17/22 ON MY 97XP AND IT TURN AROUND I WANT TO SAY 6900RPM GIVE OR TAKE, SO IM GOING TO TAKE THAT PROP OUT TODAY AND ACTUALLY SEE WHAT'S GOING ON MY BOAT HAS AN EVEN 185PSI IN BOTH CYLINDRES AND NOT PROBLEMS THAT I SEE I'LL GET BACK WITH YA, HEY IF YOUR FROM GRANDVILLE HAVE YOU CHECK OUT THAT BOAT PLACE THAT'S JUST OFF THE HIGHWAY, I SURE MISS BUTCH'S I KNOW THAT MUCH, ID BE DOWN THERE RIGHT NOW TALKING TO OSCAR ABOUT THESE PROBLEMS

[Technical Support]

Just a suggestion, it's very hard for most people to read all caps postings. If you can please use proper case.

[scorpion2]

i have a seadoo 720 turning 6980 with a swirl 17/24 impeller and have seen low 70s. if you want top end you will probably sacrifice low end and it really depends on how the motor is built up.

[Bill O'Neal]

Low 70's ?

[scorpion2]

well 78 on radar and 73 with a gps. if only i could find that right setup again to really keep it going. now running stroker motor with a 17/25 swirl really hooks up and turns.

[Bill O'Neal]

WOW!
A 720 doing 78 mph on radar........... You are my hero !

Where can I sign up for your performance school? [img]smile.gif[/img]