- Location
- Brigantine, NJ
Better than yours 550 freestyle build.
- Thread starter Foximus
- Start date
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
Im not sure that will work? I dont know I havnt mocked it up yet, but I believe I need a spacer due to the fact that the o ring wont reach the pump hub and seal. I'm not worried about structural gap.
ps. thanks for the link.
ps. thanks for the link.
- Location
- Brigantine, NJ
You want a mechanical seal too. You don't want the pump pressure against the o-ring. The metal to metal mechanical seal protects the o-ring from pump pressure and makes the o-ring more of a plan-B to catch what gets past the mechanical seal.
Don't know if that makes sense....hard to put in words??
Don't know if that makes sense....hard to put in words??
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
no no it makes sense. But from what I'm seeing in the TBM cone. I'm going to have to cut the stock cone such as you showed me. But keep the sealing lip.
That way the TBM seals agaisnt the OEM cone and the oem cone seals in the hub. Like a step down adapter sort.
That way the TBM seals agaisnt the OEM cone and the oem cone seals in the hub. Like a step down adapter sort.
madscientist
chilling with these guys.
- Location
- good old p'cola
keeping the o-ring was my thought as well
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
Took the pump out and got to work tonight. I wanna be able to get a good couple hours of riding in tomorrow.
I was wrong about the spacer though. It did not need the stepped spacer. Once the hub was tightened down there was only about a 3/16" gap to fill. The O-ring just barely reached into the main hub.
As it is made for the sxr, I had to cut up my OEM cone to use as a spacer so the TBM cone would seal due to the fact that the 650 pump hub is 6mm shorter in length. I think it was worth the sacrifice.
To explain for other readers:
As it is made for the sxr, I had to cut up my OEM cone to use as a spacer so the TBM cone would seal due to the fact that the 650 pump hub is 6mm shorter in length. I think it was worth the sacrifice.
So I cut the OE cone flush with the mounting tabs, and was left with the shell. The inner diameter was 39mm. Left with a little bit of spare time and a steady hand I used a porting dremel to bore it out to 48.1mm. No time for a lathe here :damnit:. Then using a welding glove and a belt sander I decked the ring to insure a good seal.
Yes sir! About the closest any 550 will ever get to having a mag pump. :bling:
I was wrong about the spacer though. It did not need the stepped spacer. Once the hub was tightened down there was only about a 3/16" gap to fill. The O-ring just barely reached into the main hub.
As it is made for the sxr, I had to cut up my OEM cone to use as a spacer so the TBM cone would seal due to the fact that the 650 pump hub is 6mm shorter in length. I think it was worth the sacrifice.
To explain for other readers:
As it is made for the sxr, I had to cut up my OEM cone to use as a spacer so the TBM cone would seal due to the fact that the 650 pump hub is 6mm shorter in length. I think it was worth the sacrifice.
So I cut the OE cone flush with the mounting tabs, and was left with the shell. The inner diameter was 39mm. Left with a little bit of spare time and a steady hand I used a porting dremel to bore it out to 48.1mm. No time for a lathe here :damnit:. Then using a welding glove and a belt sander I decked the ring to insure a good seal.
Yes sir! About the closest any 550 will ever get to having a mag pump. :bling:
Attachments
Last edited:
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
- Location
- Brigantine, NJ
Cool beans....you got it. Did you silicone the little ring to the pump?
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
I wasnt thinking with silicone. I just applied some grease. But then I really cranked down the whole casing on the rear 2 bolts. I think it will hold until next rebuild.... but if not... oh well. Those seals are "supposed" to be water tight anyway.
Just took a 5 minute breather from the lake. Holy junk this thing boots 'n scoots! Damn thing just jumps right out of the water any time theres a mid speed crack of the throttle applied. Amazing how much faster the pump reacts now. I had no idea this was possible.
I'm also able to lay into the turns much harder and keep the pump suctioned in, and its almost violent snapping out of flat slides now.
Jeezy creezy.
Now I just gotta get the carbs tuned....
Next project. pnuematic/CO2 powered trim!
Just took a 5 minute breather from the lake. Holy junk this thing boots 'n scoots! Damn thing just jumps right out of the water any time theres a mid speed crack of the throttle applied. Amazing how much faster the pump reacts now. I had no idea this was possible.
I'm also able to lay into the turns much harder and keep the pump suctioned in, and its almost violent snapping out of flat slides now.
Jeezy creezy.
Now I just gotta get the carbs tuned....
Next project. pnuematic/CO2 powered trim!
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
So the last few days Ive been working on ways to make a waterbox small enough to fit up in the nose. For those of you who heard this at daytona know it was a bit loud. Well I finally got something welded up, its tiny, smallest full waterbox I've ever seen, the body is perhaps 6" wide.. I dont have any final pictures but I'll get those tomorrow. I'm running 120 low 120 high and 2.3 N/S. So I should be dumping plenty of fuel. Without the waterbox I was running pretty rich and blacked out my fresh plugs in about 5 minutes, this is with the needles only a 1/4 turn out. I was almost about to buy new 115 low and high jets
I jimmied the new waterbox in yesterday and boom!. The motor is Leaned the hell out. Dies instantly upon WOT. Hesitant everywhere. I end up having to go out to 1.5 turns out on both low and high needles. So I will probably have to go to 122.5 jets. Runs much better on mid and high... I think i gained up to 4-5 mph, as I dont believe I have ever run this fast on a 550 hull. GPS tomorrow.
Its very clear to me now that this is to much motor for this hull as I am starting to form stress cracks all over the hood mounting lip. I really need to buy resin and start on this Carbon fiber project.
With the waterbox its not too much quieter as I didnt make any baffles.... but at least now the harsh crack is gone, and the overall decibles is down. The sound doesnt bounce off the houses across the lake. So its bearable now.
I jimmied the new waterbox in yesterday and boom!. The motor is Leaned the hell out. Dies instantly upon WOT. Hesitant everywhere. I end up having to go out to 1.5 turns out on both low and high needles. So I will probably have to go to 122.5 jets. Runs much better on mid and high... I think i gained up to 4-5 mph, as I dont believe I have ever run this fast on a 550 hull. GPS tomorrow.
Its very clear to me now that this is to much motor for this hull as I am starting to form stress cracks all over the hood mounting lip. I really need to buy resin and start on this Carbon fiber project.
With the waterbox its not too much quieter as I didnt make any baffles.... but at least now the harsh crack is gone, and the overall decibles is down. The sound doesnt bounce off the houses across the lake. So its bearable now.
Ahh man, I should have got a video of Fox hacking up that aluminum waterbox that he made.
Would have been good for this build thread.
But video taping him when he shocked the hell out of himself while powdercoating some motor mounts was a lot more entertaining. Twice!
***ZZAAPP!!***
Hey Fox, did you replace that expansion chamber on your powder gun?
Would have been good for this build thread.
But video taping him when he shocked the hell out of himself while powdercoating some motor mounts was a lot more entertaining. Twice!
***ZZAAPP!!***Hey Fox, did you replace that expansion chamber on your powder gun?
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
Trapped a 49.2 on chop today. Im kinda dissapointed, as my old 550 tipped a bit above 50. However this is just slammed agaisnt the stock 6m6 rev limiter... The 9/17 is just spun out. But I did forget to swap out to the long TBM cone.
I expect with the correct prop, CDI, and long cone I would be able to hit 60 on a long open run. But whats the fun in that?
I expect with the correct prop, CDI, and long cone I would be able to hit 60 on a long open run. But whats the fun in that?
madscientist
chilling with these guys.
- Location
- good old p'cola
i have an 11 - 19 cut for a 650 pump w/ set back to the stator if your interested in it.
as well as a stock sxr also cut for the 650 pump. 13 -18
as well as a stock sxr also cut for the 650 pump. 13 -18
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
na... Im not at all shooting for top end speed, I was just curious to find the outter limits of a js hull now that I have a near unlimited (relatively) power supply. Im not sure to many people have taken these past 52-53. As it is I'm already getting stress cracks all over from this motor. But after the CF is on I have a 14-19 that should do the job quite nicely.
The real quest for this boat is the 550 backflip.
The real quest for this boat is the 550 backflip.
madscientist
chilling with these guys.
- Location
- good old p'cola
cool, just thought i'd offer a trade for your 9-17
Foximus
CFL Cheapass.
- Location
- Oviedo, Fl
LoL. Yea youd like that trade wouldnt you. a 6mm cut back 9-17 c75 hub Hooker will all the impros balancing and lightening work... haha. When exactly you doin that april ride?
Do'H. Nevermind its in your sig.
Do'H. Nevermind its in your sig.
madscientist
chilling with these guys.
- Location
- good old p'cola
here's your sign vvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
Polish jet pilot
4aces4aces4aces4aces4aces
- Location
- Warsaw, Poland
We want the backflip :bow28: or at least a full and high BR!
Keep up the good work! I love 550's!!
Keep up the good work! I love 550's!!