OEM 155 Pump Talk

rubbertoe

rubbertoe

X-H20 certified
Location
San Diego
Glad to hear this ! your prototype nozzle was a touched on topic of discussion at this weekend ride sesh .Are you still able to run a trim system with this "big ol" nozzle ?
 
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freestyle 650

freestyle 650

Location
prescott arizona
rubbertoe said:
Glad to hear this ! your prototype nozzle was a touched on topic of discussion at this weekend ride sesh .Are you still able to run a trim system with this "big ol" nozzle ?
Click to expand...

Yes I'm running a oem 155 trim ring with the rubber seal built into it, had to grind down the fiberglass in a few spots to allow the trim to move better, but, yes I still have trim, although it's only about 15 degrees of throw
 
vshockey10

vshockey10

Location
Midwest
There ya go. I'm trying to find a 155 mag now but they are all sold out and 8 weeks out in production. Need to find an impeller and sj shaft now temporarily


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AdzUK

AdzUK

Location
England
Had my nozzle bored to 89.5 and deffo made some difference, would like to try go larger. Have a spare nozzle so will try glassing that, or is there any i could buy that are larger?

Thanks.
 
jules210

jules210

Location
wisconsin
air blair said:
Im scared to say anything. As people way more educated than me will tell you differently. I run 155 and wont go back. Tunnel needs to mate. Mate.
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Sick! I'm looking at running 155 pump on my 95 701 superjet. I can kill two birds with one stone; trim setup and more volume. IMO the gp1200 trim ring off the 155 pump with the rubber edge looks way better than the raiders 144 pump metal trim ring for holding water inside the pump configuration. Just wanted some insight on whats done to the 701 motor (mines bone stock) you have and whit kind of setup do u run with that pump: cone,prop, nozzle, reduction nozzle, ect.
 
jules210

jules210

Location
wisconsin
alex_hockey said:
I used a gp1200r style nozzle and welded on mounting tabs. The nozzle has interchangeable rings. I can change both steering and reduction nozzle dia. I was running a 7/14 with good results on the standard cone and no spacers. If I went to a stubby cone I could reduce that diameter. Like I said 86mm reduction and 90mm steering icouldnt even get the ski to plain on the water. Pump tuning is very important in my mind and takes themost time to find a good combo.
Click to expand...

What kind of nozzle was it and where did you get it from
 
Kawastyler

Kawastyler

Location
Germany
Have seen this weekend a DVX with 5mm cast Dasa in and oem 155s pump.......was extreme impressed aboutthe power ofthis ski. Other was a heavy selfbuild glas freestylehull with a setup close to the dvx but heavyer and tho 155s disnt work very giod in this ski
 
Christian_83

Christian_83

Xscream
Location
Denmark
@jules210, you have you widen up the pump tunnel, as a stock SJ only was made to feed a 144mm pump. Otherwise you will have a bottle neck effect.
@Kawastyler, yes it was Tims old DVX hull right? I think my DASA SS 850 was really really close to that. And i guess the glass freestyle hull is Christian Loofts Obsession? he is running my old OEM 155 pump and prop.
 
Freakrider

Freakrider

X247
Location
Tampa Bay area
I took a 98 GP1200 nozzle and had it bored to 90.35 mm. It's thin on the very outside edge but tapers thicker quickly. Do you guys think I will eventually have a problem with it that thin ? So far 4 rides and it's golden and hits strong ! Notice the oem trim ring and flow guard.20150919_103359.jpg
 
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