Getting some performance out of this thing...
#1
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Location: Durant, OK
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Getting some performance out of this thing...
Hey guys, what would I need to do to get my 29 with twin 350's to around 85 mph? All I really know is that I'll need hydraulic steering. I'd like to stay away from superchargers if possible. I thought about stroking them to 383 and getting some aggressive head and cam work but I have no idea if that will do it. I have about 25K to spend. I also need help about headers and what the Bravo 1's can handle. I'd like to stay away from having to do much to the outdrives because I know that can get really expensive in a hurry.
Thanks,
Dustin
Thanks,
Dustin
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Yeah, reliability was my main concern. I have just always assumed that if you could get the same power with bore and stroke it would be more reliable. However, I wouldn't be opposed to the idea if I knew that owners have had success with them. That's kind of why I wanted to ask here first before talking to a builder.
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Yeah, reliability was my main concern. I have just always assumed that if you could get the same power with bore and stroke it would be more reliable. However, I wouldn't be opposed to the idea if I knew that owners have had success with them. That's kind of why I wanted to ask here first before talking to a builder.
#6
21 and 42 footers
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how fast are you running now? figure you'll need aprox 200hp per side to get 10-12 mph. Bore and stroke won't get you 200 hp so I hope your already running over 75!!
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Guy near me tried to do the same with a P-29 T/350's, spent a ton and got near 80. Never did bis with the builder (good or bad) but it was a nice package and should've performed better...
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It's all stock, 67 mph on the GPS and each engine has 220 hours. I've been reading some about the Whipples and it does seem like the technology has gotten a lot more advanced since I last cared to do any research, I guess I should expect that things can get a lot better in 10 years. One thing I didn't think about at first is that no matter what the hardware costs, I imagine that the labor charges would be much less to install the supercharges than bore/stroke. I do have a set of Revolution 4 23 pitch props. A friend of mine gave them to me after he sold his boat and put his old props on it. I didn't install them because I knew my boat didn't have enough power to turn them as his had twin 525's.
#10
21 and 42 footers
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If your stock running 67 on 300hp SBC then you'll need to get them to about 650-700hp each to hit 85......pushing 700hp would likely kill the drives quickly unless your real careful.
FYI: A whippled 500efi barely makes 700 so you've got your work cut out for you.
FYI: A whippled 500efi barely makes 700 so you've got your work cut out for you.