496HO or 500EFI with whipple in the future?
01-06-2002, 02:08 AM
#1
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496HO or 500EFI with whipple in the future?
I am most likely purchasing a new 27' to 28' single engine boat this year and am going back and forth between engines (496HO or HP500EFI). My final goal is a solid 72-75mph boat at 6200 feet elevation, with regular trips to sea level. I am not afraid to put a whipple on the motor if I have to, after the warranty is up. Nordic, Fountain and Formula are the most likely candidates right now. With that in mind any suggestions on motors? Thanks.
01-06-2002, 10:36 AM
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I would pass on the 496 which has cast pistons and perhaps crank if there is a slightest chance of a Whipple in your future. You may be able to find a 454 or 502 mag somewhere as a leftover which is a much better affordable candidate. Make sure you get the XZ or XR drive. Good luck!
01-06-2002, 04:00 PM
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Does the 495MAG HO bolt on without mods in place of a 7.4MPI BravoIII in a turnkey repower? How about the HP500 and is it compatible with the BravoIII?
From what I can tell the HP500 is about $8,000 more but it includes $3,000 CMI Headers... $5000 for a blue printed/heavy duty HO motor does not seem to unreasonable to me, if I had $20,000 to dish out that is.
Jamal
From what I can tell the HP500 is about $8,000 more but it includes $3,000 CMI Headers... $5000 for a blue printed/heavy duty HO motor does not seem to unreasonable to me, if I had $20,000 to dish out that is.
Jamal
01-06-2002, 06:57 PM
#8
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Whipple the HP. Mine is sweet. Check out the pics.
engine stb
engine port
whipple
cmi
[ 01-06-2002: Message edited by: BadCat ]
engine stb
engine port
whipple
cmi
[ 01-06-2002: Message edited by: BadCat ]
01-06-2002, 07:07 PM
#9
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How many on this board have actually run at 6200ft in elavation? I do on a regular basis and believe me you will need a blower to reach those speeds.I lost 12 mph after correctly proping my boat by going up 6200ft. The only solution was after the blower was installed.My expierance is that 6200ft +5psi boost=sea leval 
01-06-2002, 08:27 PM
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I'm with ya on that Donzi22. I am usually at 3200ft and I loose 5 mph (65) from 500ft elavation. If money isn't the issue the HP500 will get you the closest, but I think 75 is a stretch without a whipple. My plan is to add the whipple this year. Just my .02 worth! 
