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Thread: Which would run higher RPM's....
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01-11-2003, 08:22 PM #1
Which would run higher RPM's....
A light boat with a 25hp engine, or a heavier one with the same engine?
Michael
Co-Founder of Airide Powerboats
12 ft. Custom Vee 50hp mod. Johnson
23 ft. Chris-Craft Scorpion: 350 Chevy
Mod. 25hp Johnson
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01-11-2003, 09:39 PM #26000 RPM
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The one with the green seats...............
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01-11-2003, 09:51 PM #3
A boat with only a driver will run higher rpms than with 3- 400 lb. passengers. So the lighter boat.
If there is only the weight diff and the prop doesn't cavitate.'90 STV
'96 260
under construction
for far too long
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01-11-2003, 10:03 PM #46000 RPM
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..... not the one with the green seats??????????
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01-11-2003, 10:07 PM #5
Definately the one that nobody's screwed with the tuner on.
Membership upgrade options: http://www.screamandfly.com/payments.php
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01-11-2003, 10:13 PM #66000 RPM
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Yea, it sucks when somebody screws with your tuner......
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01-11-2003, 10:47 PM #7
Mike,
Is it you drivin or the young lady in your avaitor? My money's on the lady!!
Tom
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01-11-2003, 11:10 PM #8
Raceman
What is it with you and these tuners? Hahahaha
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01-11-2003, 11:13 PM #9
Its the lady(my girlfriend) thats behind the wheel!! So the lighter one would run higher?
Michael
Co-Founder of Airide Powerboats
12 ft. Custom Vee 50hp mod. Johnson
23 ft. Chris-Craft Scorpion: 350 Chevy
Mod. 25hp Johnson
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01-11-2003, 11:36 PM #10
You did post this! Lighter=faster! Take all the crap out of your boat and it will go faster, unless you suck air with the prop then for some reason...or get above the powerband. More weight will displace more water(more of hull deeper in water) and then you have to push aside more water to move the boat.
If I don't put a stereo in my boat I'm gonna take the battery out and just use a jumper.
Raceman? Tuner? Isn't the problem that with so many cylinders together it trashes the signals so the tuner/tuned pipe will not work well? Also they are not the same length sometimes as well? Still much controversy about them in every thread I read here. I just wanna hear one of those boats with the pipes stickin' right out of the block!!Last edited by sho305; 01-11-2003 at 11:40 PM.
"As government expands, liberty contracts." -Ronald Reagan
Liberty = boating
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01-11-2003, 11:40 PM #11
I understand now!! Thanks guys for all the responses.
Michael
Co-Founder of Airide Powerboats
12 ft. Custom Vee 50hp mod. Johnson
23 ft. Chris-Craft Scorpion: 350 Chevy
Mod. 25hp Johnson
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01-11-2003, 11:49 PM #12
You may also have more wetted area of the hull, and the water drags against all that area in the water to slow you down. That is the idea with strakes, and sharpening the strakes and transom edge...to make the water exit away from the hull and not drag on it.
Just like if you wash your car on a paved driveway, the water will run slowly down a slope on the pavement. If you run more water it goes faster on top of the other water, but the water against the pavement will still be going slower/dragging on it. Same on your hull, so you want that pad to push you up out of the water, and lighter means higher."As government expands, liberty contracts." -Ronald Reagan
Liberty = boating
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01-11-2003, 11:53 PM #13
That makes since!!
Michael
Co-Founder of Airide Powerboats
12 ft. Custom Vee 50hp mod. Johnson
23 ft. Chris-Craft Scorpion: 350 Chevy
Mod. 25hp Johnson
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01-12-2003, 11:39 AM #14
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01-12-2003, 11:44 AM #15
Yea Norris, what John said, we would LOVE to hear that !!!!