in the water at last
08-13-2013, 06:38 AM
#1
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in the water at last
in the water just need help with props 36 glad w/900 blower motors have 4 blade 32 yes they slip 4000 RPM ran 78 MPH the old motors were 500 EFI any body do this before
08-13-2013, 08:50 AM
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As I told you in the other thread...
"those XR drives will be toast in a heartbeat with this power. They will not come even remotely close to standing up to that power. If you're smart you should sell those XR drives while they're still good (have value) and bolt on a complete set of Imco SCX drives. I would also suggest going to the SCX lowers with #6 shafts on this project. You're going to need the larger propshafts and #6 props.
No idea what you'll need for props until you can give us an idea what you think this will make for power, once we know this we can get you in the ballpark. Just taking a stab in the dark and saying these engines will make 900hp, the boat will run around 112-116 mph (depending on drive setup and height), so you'd need something like 35p or 36p props at that power level.
Until you swap out those drives, I'd leave some small props on it, this will extend the short life you'll have with the XR drives. Honestly, those things wont last long at all behind your new power... get them off the boat ASAP!"
"those XR drives will be toast in a heartbeat with this power. They will not come even remotely close to standing up to that power. If you're smart you should sell those XR drives while they're still good (have value) and bolt on a complete set of Imco SCX drives. I would also suggest going to the SCX lowers with #6 shafts on this project. You're going to need the larger propshafts and #6 props.
No idea what you'll need for props until you can give us an idea what you think this will make for power, once we know this we can get you in the ballpark. Just taking a stab in the dark and saying these engines will make 900hp, the boat will run around 112-116 mph (depending on drive setup and height), so you'd need something like 35p or 36p props at that power level.
Until you swap out those drives, I'd leave some small props on it, this will extend the short life you'll have with the XR drives. Honestly, those things wont last long at all behind your new power... get them off the boat ASAP!"
08-13-2013, 09:02 AM
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sounds good just have to call Dave at IMCO was hopping to put it off and get some time on the water summer is half gone its a good winter job................
08-13-2013, 09:09 AM
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If you're going to run those XR's out for the rest of the season, I would highly suggest you not put larger props on those drives. They will blow as is with the 32's, very quickly if you get the boat out of the water frequently. Your best bet would be to put some smaller props on it (say 4 blade 28p) just to break the engines in and to help save the props.
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08-13-2013, 01:40 PM
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No need to change out your drives. I just put Arneson ASD7Ms on my 1994 Top Gun. I need more HP. I have twin 605HP engines. Trade???? Then you can save your drives from breaking if you are careful not to hammer them too much and I can go faster without having to worry about my drives breaking.....LOL......What's my chances? ZERO?
