difference between 440s and 550s?

2006superjet

2006superjet

just one more part....
Location
costa mesa ca
440 is way underpowered if you are more than 170lbs dont waste your time. dont get me wrong i started in a 440 when i was 17 and for the $ its still fun.
 
special fx

special fx

X
Location
Brigantine, NJ
I ran a 440 superstock for "freeride" (before there was such a thing!). I had 550 mods before that and they can be comparable. The nice thing about the 440 was it lived forever and 550s seemed to be short lived. I beat the snot out of the 440 and it just took it. The 440 does end up with a lot more transfer volume becuase of the bore size. I thought my 440 was the shiz....we just didn't know any better back then!
 
tnj4life

tnj4life

Location
Marshall, AR
special fx said:
I ran a 440 superstock for "freeride" (before there was such a thing!). I had 550 mods before that and they can be comparable. The nice thing about the 440 was it lived forever and 550s seemed to be short lived. I beat the snot out of the 440 and it just took it. The 440 does end up with a lot more transfer volume becuase of the bore size. I thought my 440 was the shiz....we just didn't know any better back then!
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Stock for stock a 550 gets my vote but I bet you have had some killer js skis. My poor 84 stock js440 was a turd. I now have a 750 in it with alot of cavitation :smile:. I still love riding that ski and catch myself on it sometimes more than the sn I have. Didnt the 440 have a stronger crank than the 550?
 
tnj4life

tnj4life

Location
Marshall, AR
I know this is a little off subject but ive always been curious about the freeride scene before the blessed superjet and 701 come on the scene. Specialfx sounds like one of the pioneers of this. Im curious about the setups and pump mods you guys done to these vintage skis. I bet it was alot harder to ride the waves back then, probably took more skill.
 
FlightPlanDan

FlightPlanDan

Don'tTrustAfartAfter50
Location
Crescent Beach, FL
tnj4life said:
Stock for stock a 550 gets my vote but I bet you have had some killer js skis. My poor 84 stock js440 was a turd. I now have a 750 in it with alot of cavitation :smile:. I still love riding that ski and catch myself on it sometimes more than the sn I have. Didnt the 440 have a stronger crank than the 550?
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Don't get me wrong! I loved the js550. Loved it better with a 440 pump in it. But it just plain wore the hell out. Bored 3 times, re-jetted, pump mods....Granted you end up doing all that to an sj too, but the displacement and a B pipe will make you scream compared to any 550.
I got tired of working on it all week and getting a solid 45 minutes of riding b4 it crapped.
Broke down and got 2 new sj's back in '03 and have had minimal problems ever since.
The sj flew out of my hands (bone stock) the first time I rode it. I was'nt ready for the bottom end hook up.
A square nose 701 is the way to go. I have rn's but the motor is there and you'll find a sn alot cheaper.

Just my .02
 
tnj4life

tnj4life

Location
Marshall, AR
FlightPlanDan said:
Don't get me wrong! I loved the js550. Loved it better with a 440 pump in it. But it just plain wore the hell out. Bored 3 times, re-jetted, pump mods....Granted you end up doing all that to an sj too, but the displacement and a B pipe will make you scream compared to any 550.
I got tired of working on it all week and getting a solid 45 minutes of riding b4 it crapped.
Broke down and got 2 new sj's back in '03 and have had minimal problems ever since.
The sj flew out of my hands (bone stock) the first time I rode it. I was'nt ready for the bottom end hook up.
A square nose 701 is the way to go. I have rn's but the motor is there and you'll find a sn alot cheaper.

Just my .02
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Totally agree, I have a 701 sn with all the bolt ons and theres no comparison on power, pump, and ease of tricks. And yes they are much better all around for anything you do (surf or flatwater). But theres just something about squirlly hulls I love. Click on the fx1 section and you'll see the following of riders on skinny skis. I only ride flat water though.
 
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ATS_Aaron

ATS_Aaron

X-
Location
Shady Shores, TX
I've had two piston port 550's and I can never get them to start reliably. I've read about people having to do dual battery mods because of the same type of problem. I parted them out and bought more SJ stuff with the $$.
 
tnj4life

tnj4life

Location
Marshall, AR
ATS_Aaron said:
I've had two piston port 550's and I can never get them to start reliably. I've read about people having to do dual battery mods because of the same type of problem. I parted them out and bought more SJ stuff with the $$.
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Biggest problem with that is the stock junk bn44 carb, they were hard to dial in with the extra pilot adjustment. Piston ports are not as easy to start though unlike reed motors. When my 84 js440 was still a 440 it started good. Had a primer though.
 
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