Check out my thread at the seadoo forum. If you want to chat, pm me there. www.google.com/url?sa=t&source=web&rct=j&url=www.seadooforum.com/threads/challenger-4tec-upgrade.64188/&ved=2ahUKEwi41LyjpZ7pAhX_l3IEHduMAosQFjAAegQIBRAB&usg=AOvVaw309PRQpE85VZ6c68pXblwq
oh yea, HUGE project. had to cut and paste two hulls together to get the pump/ motor geometry right for the new motor, so I wouldn't have to make a custom drive shaft. cost was an old boat, a newer donor ski, 1k in rebuilds parts, epoxy, lots of tool consumables and a TON of time. Had to even build a custom fuel tank. The whole process is documented on tree seadoo forum in the thread Challenger 4tec Upgrade
Well, you won't find a boat like this out there. the new ones are bigger and not as good looking imo. also, they got rid of the front seat. worst of all, there is no place for my 10" enclosed sub! I actually have seen one of these with a bike engine before. with that setup, you may not have to redo the pump tunnel or fuel tank, though I would recommend going with the 155mm pump for extra thrust. only thing to figure out is how to engage the driveline
def bouncing off the stutter box. much of it I found is coming from the carbon seal, which is on order. also, this prop may be too tall. I bored my nozzle to 84mm and deleted the siphon tubes. we'll see if that helps. I may bore it further.
I have a 96 I want to do this to, do you have a materials list for your build? I've been researching and seem like you came up with a good setup!
Check out my thread at the seadoo forum. If you want to chat, pm me there. www.google.com/url?sa=t&source=web&rct=j&url=www.seadooforum.com/threads/challenger-4tec-upgrade.64188/&ved=2ahUKEwi41LyjpZ7pAhX_l3IEHduMAosQFjAAegQIBRAB&usg=AOvVaw309PRQpE85VZ6c68pXblwq
is that 60mph recorded worn GPS? mine starts to dolphin really bad after 55mph. needs trim tabs maybe
Is it a lot to change the motor and what was the cost?
oh yea, HUGE project. had to cut and paste two hulls together to get the pump/ motor geometry right for the new motor, so I wouldn't have to make a custom drive shaft. cost was an old boat, a newer donor ski, 1k in rebuilds parts, epoxy, lots of tool consumables and a TON of time. Had to even build a custom fuel tank. The whole process is documented on tree seadoo forum in the thread Challenger 4tec Upgrade
so better to buy another boat and sell my boat. I wanted to out in a motorcycle motor.
Well, you won't find a boat like this out there. the new ones are bigger and not as good looking imo. also, they got rid of the front seat. worst of all, there is no place for my 10" enclosed sub! I actually have seen one of these with a bike engine before. with that setup, you may not have to redo the pump tunnel or fuel tank, though I would recommend going with the 155mm pump for extra thrust. only thing to figure out is how to engage the driveline
true. I just don't have the know how nor the tools to Do this. looks fun though
justin stephens when I started, neither did I. But there's no better reason to acquire both.
changed the carbs out bigger carbs an chane the peller . im getting 60 out of my 96 seadoo challenger
mine gos 60 with on 787 rotax
Turn you phone sideways next time :) Seems like its caveating like a bitch at the beginning was it hitting rev limiter?
def bouncing off the stutter box. much of it I found is coming from the carbon seal, which is on order. also, this prop may be too tall. I bored my nozzle to 84mm and deleted the siphon tubes. we'll see if that helps. I may bore it further.
+hybridorbital85 sweet I'm on the seadoo forum and have been following your build love it can't wait to see it all dialed in