Freestyle 144 v 148 Mag on 1000cc?

[peterlocal22]

trying too

 

[circafwsk8r]

trying too

there's a technical database that shows peoples setups. can always compare off that. I run oem 144 with hooker 10/16 876 4mil nonpv novi 48's msd enhancer, lighten oem flywheel. all about how you like your setup and how quick u want it to pull to the red. ive rode setups w dif pumps for me u gotta balance what your doing and what you wana spend. Unless you've actually changed pumps with an engine from 144 on up and tested shouldnt really say much. I haven't . take what people say with a grain of salt. YOu should know instantly if ur under pitched. you know when your tires spin before they take off lol. i saw wanderer1 rok he sold last week. 927 66e. Nice ski, but i would take my setup any day over those big 66e's. also would say my setup makes more power. Point being bigger isnt always better. Go put a 155 behind it i guarantee youll have more power? :joke:

 

[jahimmelspach]

For what it's worth when I had my xs 1000 with xs 46 carbs, b pipe mod, enhancer, tbm.
144 solas mag
11/17 hooker
it was a great combo. Pleasantly surprised.
I also rode that engine setup before I purchased it in a glass fs2 with the 148 in it.
the lighter Bob hull is an obvious difference, but I didn't feel much of a difference as far as pump thrust.
not a perfect test by any means, but it have me an idea.
My .02

 

[Bobert540]

there's a technical database that shows peoples setups. can always compare off that. I run oem 144 with hooker 10/16 876 4mil nonpv novi 48's msd enhancer, lighten oem flywheel. all about how you like your setup and how quick u want it to pull to the red. ive rode setups w dif pumps for me u gotta balance what your doing and what you wana spend. Unless you've actually changed pumps with an engine from 144 on up and tested shouldnt really say much. I haven't . take what people say with a grain of salt. YOu should know instantly if ur under pitched. you know when your tires spin before they take off lol. i saw wanderer1 rok he sold last week. 927 66e. Nice ski, but i would take my setup any day over those big 66e's. also would say my setup makes more power. Point being bigger isnt always better. Go put a 155 behind it i guarantee youll have more power? :joke:

That's almost like saying stock tires will give you more traction than drag slicks....


You don't need to jump from 144 to 155 but 144 has its limits. An 1100pv motor tuned properly would probably just spin props all day in a 144. That's just wasting power if flat water tricks are your goal.

 

[wanderer1]

there's a technical database that shows peoples setups. can always compare off that. I run oem 144 with hooker 10/16 876 4mil nonpv novi 48's msd enhancer, lighten oem flywheel. all about how you like your setup and how quick u want it to pull to the red. ive rode setups w dif pumps for me u gotta balance what your doing and what you wana spend. Unless you've actually changed pumps with an engine from 144 on up and tested shouldnt really say much. I haven't . take what people say with a grain of salt. YOu should know instantly if ur under pitched. you know when your tires spin before they take off lol. i saw wanderer1 rok he sold last week. 927 66e. Nice ski, but i would take my setup any day over those big 66e's. also would say my setup makes more power. Point being bigger isnt always better. Go put a 155 behind it i guarantee youll have more power? :joke:

I wouldn't know. Unfortunately I was in an accident and injured the day after I bought ski RTR and felt the 14/19 Sola's Concord the PO installed was probably a good starting point. Maybe when I'm healed I'll try changing a pump and engine for once lol. Derail

 

[NVJAY775]

I think pump tuning has a ways to go actually. Some that have honestly tried a lot of different impeller pitches, cones, red nozzle ID sizes, steering nozzles, really know what's up. But unfortunately not many have the time, or cash to do those things.

I'll try and find a pump writeup I read a while back and post it up. For some it's going to be old hat, but for others it's going to really open your mind on how pumps work and why.

I may be at a higher elevation, 4,500', but I can honestly say that you really have to know what kind of riding you want to do before setting up your pump.

I myself want silly bottom end hit as soon as I can get it. My current set up is 781, tl, pfp, 195 psi, boyesen intake, 48 fs carbs and am currently running a 9/15 hooker in a 144 mag, 86 red nozzle and want a stubby cone to try. I'm going to try going down a couple increments in impellers to see how it goes. I'm sure it's only going to get better, because going down already has made a noticeable difference in bottom end hit and I'm lovin it. Being able to come into a wake at slower speeds and getting the hit is nice.

I'm still thinking once more guys actually try propping down for flatwater they will see the light. Especially the pfp setups. Prop down, smaller cone, larger red nozzle id and let that high hp engine launch you.

I think if you have a high hp engine, you're going to be stoked with almost any pump set up, mainly because that beast will battle through most pump set ups. But take your time and match the pump properly to what you are wanting to do and you'll be really stoked.

Then once the pump is happy try some different intake grates and feel those differences too. Lots of stuff to play with to get your ski to match your riding style... But it's all a good time and time well spent.

I think over the next year, more and more input will be shared on pump stuff, to help everybody out with at least getting some descent starting points.

I've been steered wrong a time, or two. But in their defense, the past trend has been to prop up with a lighter hull, or more hp and that doesn't always work.

Hopefully guys that have really done some r n d will post up their findings. I know as we "high elevation guys" learn more, we'll post up our findings in hopes to help out.

Brraapp!

 

[Philip Clemmons]

You should be around a 13/18 or 13/19 in a 148 with that setup, assuming its tuned properly. In a 144, its more like 14/19 to 16/21.

That's assuming no engine issues of course. What do you mean by no bottom end? Does the ski rev but not pull, move, or jump out of the water, or is it low on power at the hit of throttle?

Hard to tell if you're spinning the prop or have a power issue in your setup/engine.

 

[Superjetjim]

Just something to add into the mix... Brand new Skat 155mm Prop out of the box, prior to fiiting, straight onto the lathe to hold it true and measured with a digital angle guage at my local Jetski tuning shop - results as follows, seen with my own eyes as he did it..

Claimed pitch engraved into hub = 10/18

Actual pitch Blade 1 = 13/20
Actual pitch Blade 2 = 12.5/20
Actual pitch Blade 3 = 13/20

If your tuning and you don't appear to be seeing the results you expect, check your pitch manually, my local shop check all props that come in and rarely see what it claims.

And just for the thread record, I skipped the 148 as suggested at the start of this thread and went straight to a 155 Skat as the price was the same, will be trying it this weekend if she lets me out

Jim

 

[Superjetjim]

.

 

[Philip Clemmons]

1-2 degrees of variance from stated pitch is unfortunately "normal" for our props. My last one was off over 2 degrees on the trailing edge, and was a dog. Once I repitched to what I had ordered, it really woke up.

 

[Matt_E]

That's unfortunately the norm for Skat impellers.

 

[circafwsk8r]

That's almost like saying stock tires will give you more traction than drag slicks....


You don't need to jump from 144 to 155 but 144 has its limits. An 1100pv motor tuned properly would probably just spin props all day in a 144. That's just wasting power if flat water tricks are your goal.

my point being is spending 1500-2k on a bigger pump Gona yield that much dif. For me no. But I don't compete and I'm also not rich. I haven't been impressed w some bigger pumps for the money you spend.

 

[Bobert540]

my point being is spending 1500-2k on a bigger pump Gona yield that much dif. For me no. But I don't compete and I'm also not rich. I haven't been impressed w some bigger pumps for the money you spend.

I agree, that's a lot of dough to shell out for a pump. If you are going to run a big $$ money motor though, why not make use of the power?

That 1100 would scream on the top end with the right prop in a 144 but that doesn't seem be the goal since he was looking for low end.

There are so many factors getting a boat to run right. I see so many threads where people buy bigger motors but seen to be let down. With the right supporting mods, smaller motors can rip as well. Spending time with the builder of the motor or someone with the experience and know how is priceless. I enjoy wrenching but I would rather be riding then trying to swap pump/props all summer...