155 prop for jetmaniac 727 in a lightweight hull

[McDog]

Thinking of putting a oem 155 pump in a carbon circus with a jetmaniac 727. Any suggestions on skat prop pitch?

 

[Big Kahuna]

Hit up Speedysprocket.

 

[McDog]

Hit up Speedysprocket.

He says u a liar.

 

[Christian_83]

OEM 155 is a wide term, they range from 760cc smaller couches to 1100cc
I have a friend who ran a OEM 155 from a WB 2 760, in a fibreglass Lenzi1 replica (with opened intake duct) and a 701cc PFP, dual 44 mikunis. i ran really well!

 

[cookn]

the 7/15 ish range seems to be where people are going with the smaller displacement. I am going to run a big hub swirl 7/15 in the oem 155 with a 718 and the nozzle bored to 90mm. I won't get to try it for another 3 months or so tho so I'm not much help

 

[McDog]

Thanks guys. I did find on the impros site that skat recommends a 7/15 in the B2 blaster which is a 760 motor, but a circus weighs a lot less. I think it's the best starting point though and i can bend as needed.

 

[Big Kahuna]

The B2 used the 155 to help overcome the amount of wet surface area that hull used. It was a "Wet" hull. Meaning it did not trim up when came on plane. Kinda like the SXR's .

 

[Christian_83]

I might prop down a pitch or two. I ran a 155 OEM pump with a skat 7/14 prop in a KDX carbon hull, with DASA 850 ss, PFP, dual 49 full specs, MSD digital TL.
I think i would go 6/14 or 7/13. The couch hulls also need more topped than a small light freestyle hull. just keep that in mind when your compare props

 

[hornedogg79]

Thinking of putting a oem 155 in a carbon circus with a jetmaniac 727. Any suggestions on prop?

I like the way you're thinking

Sent from my SM-G900V using Tapatalk

 

[air blair]

6/12 swirl. You'll be happy


Air blair cell

 

[cookn]

now the question is has anyone bent 15 deg down to 12? @air blair

 

[newbee]

So i just saw a post saying you can go + or - 3. I will try and find the post. Speedysprocket has some fast turn around on his work.

 

[air blair]

I never have purposely bent an impellar.


Air blair cell

 

[McDog]

Does anyone think the prop should change if it's in a mag pump versus oem?

 

[Big Kahuna]

You mean pitch? Same Pitch from 2 different brands does not equal the same prop.

 

[McDog]

Same skat swirl prop. Just in a 155 mag pump instead of a 155 oem pump. It would have higher pump pressure so maybe affects the needed pitch for the same application?

 

[Big Kahuna]

hmmmmmmmmmm, just try it!

 

[air blair]

Does anyone think the prop should change if it's in a mag pump versus oem?

I'd assume not much of an impellar change would be needed if any. I base my experience off doing it on 144s


Air blair cell

 

[McDog]

Ordered the 6/12 155 skat swirl. Ka-ching! Planning to run it in a max mag pump. I'll report the results asap.

 

[Big Kahuna]

What, No Hooker?