Anyone have over 500hp in a 382 ???
#1
21 and 42 footers
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Looking to build motors for my 382. Currently running 500EFI's with 8 psi Prochargers. While it's fast, I don't want the blowers and plan on rebuilds this winter. The article about the 382's in the new Powerboat mag has me concerned.
My plan is to build 540's, keep the EFI intake system, roughly 9.5 to 1 compression and aftermarket heads. This should get me in the 620-640 HP range. Magicfloat claims a new 382 with 600's runs 84 (but that maight be with boxes). The Powerboat article claimed 79.XX.
Anyone with 500+ hp willing to provide me with your real world cruise and top speeds? I'd hate to drop this kinda money for just a few MPH.
Russ C.
My plan is to build 540's, keep the EFI intake system, roughly 9.5 to 1 compression and aftermarket heads. This should get me in the 620-640 HP range. Magicfloat claims a new 382 with 600's runs 84 (but that maight be with boxes). The Powerboat article claimed 79.XX.
Anyone with 500+ hp willing to provide me with your real world cruise and top speeds? I'd hate to drop this kinda money for just a few MPH.
Russ C.
#2
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Conntact WAGS382 he has around 620 HP per side in his 382
Here is a link.
http://www.offshoreonly.com/forums/s...d.php?t=102817
Hope this helps,
Don
Here is a link.
http://www.offshoreonly.com/forums/s...d.php?t=102817
Hope this helps,
Don
Last edited by Maritime_Eng; 09-11-2006 at 11:25 AM.
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Russ,
I'm running bone stock 525's with Boxes and have yet to seen 80. I usually have the boat loaded with weekend stuff under the bow and a full tank of gas. I also have the genset which adds some weight.
I'm running bone stock 525's with Boxes and have yet to seen 80. I usually have the boat loaded with weekend stuff under the bow and a full tank of gas. I also have the genset which adds some weight.
Originally Posted by t500hps
Looking to build motors for my 382. Currently running 500EFI's with 8 psi Prochargers. While it's fast, I don't want the blowers and plan on rebuilds this winter. The article about the 382's in the new Powerboat mag has me concerned.
My plan is to build 540's, keep the EFI intake system, roughly 9.5 to 1 compression and aftermarket heads. This should get me in the 620-640 HP range. Magicfloat claims a new 382 with 600's runs 84 (but that maight be with boxes). The Powerboat article claimed 79.XX.
Anyone with 500+ hp willing to provide me with your real world cruise and top speeds? I'd hate to drop this kinda money for just a few MPH.
Russ C.
My plan is to build 540's, keep the EFI intake system, roughly 9.5 to 1 compression and aftermarket heads. This should get me in the 620-640 HP range. Magicfloat claims a new 382 with 600's runs 84 (but that maight be with boxes). The Powerboat article claimed 79.XX.
Anyone with 500+ hp willing to provide me with your real world cruise and top speeds? I'd hate to drop this kinda money for just a few MPH.
Russ C.
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Where is the silver one with black stripes with quad-whipples?
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The actual Spyder boat in all the ads and on the Formula website is on a lift in my boathouse,600's,Stellings,gen and air,84 GPS all day long.Ran it in our Poker Run in late July,5 people,near full fuel,80-81 Gps whenever we needed it. Maybe the California Powerboat guys don't know how to stretch out an Alabama Formula
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#6
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Robert,
Do you think the stellings make that big a difference? 1-2, 3-4 MPH? You know what I have.....if I can make 640hp with the new mills any chance I'll see 85?
BTW: The current motors should red line about 5,500......At 5,000 rpm's w/ full fuel, water, gear, 5 people we saw 86 GPS!!!
Do you think the stellings make that big a difference? 1-2, 3-4 MPH? You know what I have.....if I can make 640hp with the new mills any chance I'll see 85?
BTW: The current motors should red line about 5,500......At 5,000 rpm's w/ full fuel, water, gear, 5 people we saw 86 GPS!!!
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29 labbed Maximas,boxes maybe 1-2 mph on a 382,slightly better handling,but not that big a deal. You should see 85 based on the info you gave me on your future engines.But all of this is part science,part art, you never know
Good luck
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Russ,
I have 645 h.p. side seeing 83-85 mph with stock 28 Bravos, Max Machine upgraded XR's with nosecones, extention boxes, and turning props in.
I have 645 h.p. side seeing 83-85 mph with stock 28 Bravos, Max Machine upgraded XR's with nosecones, extention boxes, and turning props in.
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Originally Posted by RedDog382
Russ,
I have 645 h.p. side seeing 83-85 mph with stock 28 Bravos, Max Machine upgraded XR's with nosecones, extention boxes, and turning props in.
I have 645 h.p. side seeing 83-85 mph with stock 28 Bravos, Max Machine upgraded XR's with nosecones, extention boxes, and turning props in.
Thanks,
Russ C.