Super Jet Magnum size for Freestyle Brapp

[iptamenos]

what pump size you must have for freestyle ??


after checking on x i see that everyone use different pump setu p

the guyz which built the motor by metal use 148 mm
wdk use 155 mm
other 145mm
a forum friend told me to use 140 mm

finally which is the best for freestyle

 

[DAG]

they are all the best for freestyle, but whats the best for your motor?

 

[iptamenos]

who will tell me that i ask 3 different persons and all answer different options

 

[steve-uk]

depends on your set up .. mainly determined by motor size

 

[iptamenos]

they now my setup

 

[oxnard111]

Tell us about your engine... what size, carbs, electronics, hull weight/style

 

[sjetrider]

We do not however. So advise from this thread will be minimal. I would go with whoever built the motors advise. This way you keep all info correct when trouble shooting.

I prefer the 144mm mag for freeride/freestyle use. Seems good all arround. However the big boys in pro freestyle are mostly using 148mm now. The 148mm pumps seem to work best with the 1000cc motors and powerfactory pipes that come on strong at mid.. They keep these motors in mid rpm range and like the mid range hit for back to back tricks so the 148 stays looser at very bottom allowing the motor to rev quicker but once the pump is loaded it explodes giving them the thrust needed.

make sense? it does in my mind but thats a confusing place sometimes.

for 800cc range and b-pipe I think your better at 144mm mag.

140 is a lead ballon offering quick loading and hook up but little explosion and it weighs 2 million pounds.

 

[Waternut]

In my mind... The best one for you application is the one your engine builder recommends and if that isn't an option then get the one that you can get a deal on. Although I do think I'd stay away from the 155 mag pump unless you've got 1000cc+ but that's just my opinion.

 

[kevbo]

You may as well be asking what size shoes are best for freestyle.

 

[iptamenos]

i am using dasa 870cc pv 8mm stoker
i am not thinking to install 155 mm
but lots of riders now use 148 mm so in the future maybe i will go 992 cc i i need a magnum now but also to work with the future setup
i don't want to buy a 144 now and in the future not work with the 1000cc and also the opposite

 

[steve-uk]

if your planning to upgrade to the 1000cc id go with the 148mm

i ran a 148mm mag in a 701 b-piped engine and it ran fine even though many told me it was way to big... ski ran awesome

i now have a team scream ss865 at first bore and im running a 144mm

 

[iptamenos]

if your planning to upgrade to the 1000cc id go with the 148mm

i ran a 148mm mag in a 701 b-piped engine and it ran fine even though many told me it was way to big... ski ran awesome

i now have a team scream ss865 at first bore and im running a 144mm

how is the ss with 144 mm will you prefer the 148mm

 

[steve-uk]

i never tried it with the 148, jr freestyle did and he said it lacked bottom end, he swapped to a 144 and it was night and day improvement

 

[skinnyman]

if your planning to upgrade to the 1000cc id go with the 148mm

i ran a 148mm mag in a 701 b-piped engine and it ran fine even though many told me it was way to big... ski ran awesome

i now have a team scream ss865 at first bore and im running a 144mm

Was the pump you ran a 6vien 148 I had one and proped it for my 5mm able it was awsome
I would think a 148 12 vien would kill a 701 limited

 

[steve-uk]

yes it was a 6 vane

 

[Tyler Zane]

140 is a lead ballon offering quick loading and hook up but little explosion and it weighs 2 million pounds.

what makes the 140 any heavier than the others?

 

[Matt_E]

The wear ring. It's a standard 144 wear ring with additional metal to bring it down to 140.

 

[Tyler Zane]

ah, i see. hopefully my 140 will work out good with my ported 701ish (81mm bore= ?cc)

 

[Jr Freestyle]

ya i ran a 148mm 12 vein setback on my xscream ss845 w/total loss, powerfactor, and xscream 46mm carbs , and it had no bottom end i swapped to a 144mm 12 vein setback w/ 13/18 prop and the thing hooks up like crazy on bottom . i think the the 148mm are more for 1000+cc

 

[Matt_E]

I'm certainly very happy with my 140

ah, i see. hopefully my 140 will work out good with my ported 701ish (81mm bore= ?cc)