power factor pipe question?

B

bad93blaster

X-H2
what rpm do you get out of these? My ski is running a little over 7900rpms now. I'm looking for different options

My setup is
6 mill stroke 81ish bore p/v lamey ported by judge. 48 novis, total loss, and speedwerx pipe. They normal freestyle setup lol

142mm skat mag. Prop is pitched at 16.5/24
 
ShowtimeStocks

ShowtimeStocks

Location
Connecticut
i struggled to get much info on them still not 100 percent convinced it would work ok with my powervalve cylider. try brian at thrust innovations he is a very helpful guy
 
waterfreak

waterfreak

I had a vision!
Site Supporter
Vendor Account
Location
s florida
theirs alot of different factors you have to take in consideration (ie timing, carbs and prop) Your best bet is contact Mark Baxter directly at powerfactor.
These pipe really shine with big displacement motors
 
MTRHEAD

MTRHEAD

Location
MotorCity
bad93blaster said:
what rpm do you get out of these? My ski is running a little over 7900rpms now. I'm looking for different options

My setup is
6 mill stroke 81ish bore p/v lamey ported by judge. 48 novis, total loss, and speedwerx pipe. They normal freestyle setup lol
142mm skat mag. Prop is pitched at 16.5/24
Click to expand...

If your really spinning 7900 rpm with that big of prop in a 142mm pump you must be setting speed records. A superjet or even a blaster with that prop, pump, RPM, would reach speeds only heard of from a couple standups in the whole world.
 
B

bad93blaster

X-H2
MTRHEAD said:
If your really spinning 7900 rpm with that big of prop in a 142mm pump you must be setting speed records. A superjet or even a blaster with that prop, pump, RPM, would reach speeds only heard of from a couple standups in the whole world.
Click to expand...

Its 60-63 mph it gets there in under 70ft its all bottom end. I Its pretty much the same setup as lee and scottie mac run
 
B

bad93blaster

X-H2
waterfreak said:
theirs alot of different factors you have to take in consideration (ie timing, carbs and prop) Your best bet is contact Mark Baxter directly at powerfactor.
These pipe really shine with big displacement motors
Click to expand...

What do you get out of yours. I'm pretty sure I'm not lacking any power compared to a big displacement
 
SUPERTUNE

SUPERTUNE

Race Gas Rules
Location
Clearwater Fl.
The problem we have with getting tach peak readings is our XS 1000 makes a lot of power with the power factor dry pipe and we run a big pump and big prop to keep it from slipping when the pipe comes on the power. With the really light carbon hull a 2 couple of inches shorter hull than a stock superjet, you can never get to peak RPM without the ski taking off like an airplane.
 
GIL

GIL

Power In The Hands Of Few
Location
Cullman AL
SUPERTUNE said:
The problem we have with getting tach peak readings is our XS 1000 makes a lot of power with the power factor dry pipe and we run a big pump and big prop to keep it from slipping when the pipe comes on the power. With the really light carbon hull a 2 couple of inches shorter hull than a stock superjet, you can never get to peak RPM without the ski taking off like an airplane.[/QUOTE]

A flatwater backflipping airplane.
Click to expand...
 
B

bad93blaster

X-H2
MTRHEAD said:
are sure on that prop size? what nozzle size? a 16/21 with a 82mm hole at 7900 rpm is 64mph and thats a 140 pump.
Click to expand...

Is that in a blaster? Yes my prop is right.

I'm not looking for anymore speed. Just done want to lose any either. I'm thinking the pf might be alittle more bottom end and with the pipe being low in the hull maybe some handling.

My ski has the jd pump shoe that scrubs speed. 4inch hull ext and pump moved back 2inches
 
MTRHEAD

MTRHEAD

Location
MotorCity
The PF is very similar in spec to the Type 9. In back to back testing with the speedwerx versus a type 9
on the same boat same motor the speedwerx won except for over rev on top end. The type 9 does respond to water injection better than the Speedwerx in my old testing.

What water box are you using in your blaster setup?
 
B

bad93blaster

X-H2
MTRHEAD said:
The PF is very similar in spec to the Type 9. In back to back testing with the speedwerx versus a type 9
on the same boat same motor the speedwerx won except for over rev on top end. The type 9 does respond to water injection better than the Speedwerx in my old testing.

What water box are you using in your blaster setup?
Click to expand...

Oem raider/gp760 water box. I also don't run h20 injection

I know the orig pf was a octane dry pipe wich is a backwards 9. But the pf looks longer so didn't know if it hurt the rpm on top
 
E

egbrig

I don't think the flounder pipe was the basis for the PF. The type 8 had a weak bottom end, seems like the wrong starting point for a freestyle pipe.
 
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
not even close in look. Take a Type 9. Revererse the manifold. Weld on an extension to the coupler, lay it flat so it "U" 's around the front of the motor. You have something that greatly resembles the PF pipe as it looks today without the relief notches in it.
 
Scorn800

Scorn800

Ride for life
Location
North NJ
Big Kahuna said:
not even close in look. Take a Type 9. Revererse the manifold. Weld on an extension to the coupler, lay it flat so it "U" 's around the front of the motor. You have something that greatly resembles the PF pipe as it looks today without the relief notches in it.
Click to expand...

I agree with BK on this
 
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