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08-26-2003, 11:11 PM
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#1
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Platinum Member
 Platinum Member
Join Date: Feb 2001
Location: poughkeepsie, ny, usa
Posts: 1,051
boats, cars
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which engine 502efi or 500efi ?
which engine one or the other or both requires the most maint. for reliability and trouble free operation?
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08-26-2003, 11:49 PM
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#2
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Charter Mod
 Charter Member
Join Date: May 2000
Location: E Dock
Posts: 6,455
368 Skater
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I would defintely get the 500. It is just as tough as the 502 and has more hp.
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08-27-2003, 12:07 AM
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#3
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WHYC / NIOC
 VIP Member
Join Date: Feb 2002
Location: Lake Michigan
Posts: 6,197
42 Fountain/370 SeaRay
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The 500 has better internals...such as bigger better vavles, 2.25 Stainless and 1.88 Inconel, J.E. forged Aluminum pistons and Crane roller rockers.
The cranks are GM forged steel and are Tuftrided...I don't think the 502's are but I'm not sure.
__________________
Saris Racing 800SC
Bmax/-2 IMCO's
Cryo Gear sets
IMCO Boxes
MitcherT
Livorsi
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08-27-2003, 12:38 AM
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#4
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Registered
Join Date: Mar 2002
Location: racing capitol of the world
Posts: 3,352
07 368 SKATER and shes bad
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4 YEARS WOT NO FAILURES. HP500EFI.NO DOUBT
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08-27-2003, 01:05 AM
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#5
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Forum Regulator
Join Date: May 2001
Location: Wanderer
Posts: 15,259
Active Thunder 37' & other Factory boats, 13' Mini Hawk
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500EFI hands down. If you have the cash... 525EFI.
__________________
Brian T.
Active Thunder Factory Rep.
Web: ActiveThunderBoats.com
Email: brian(a)activethunderboats.com
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08-27-2003, 03:18 AM
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#6
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Registered
Join Date: Feb 2003
Location: Huntington Beach, CA
Posts: 1,747
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Love my 502's. . . would trade 'em for HP500EFI's in a heartbeat.
In fact, it would take a team of the Best and the Brightest from M.I.T., with their most advanced technological equipment, to be able to actually calculate how quickly I would make that trade.
And I love my 502's.
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08-27-2003, 08:15 AM
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#7
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Guest
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No brainer.... 500's
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08-27-2003, 09:15 AM
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#8
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Deep Impact Boats
VIP Member
Join Date: Jan 2003
Location: Ft. Lauderdale, FL
Posts: 1,539
Building boats for you
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One 502Mag doesn't have enough for the 26 Sonic.
I have a friend with one... and it's a dog planing off real GPS top end is 64, which isn't too bad considering what motor is in there..
Go for the 500 if you can go the extra cash...
You'll never be upset if you have "too much power", but you'll be really pissed if you don't have enough.
__________________
Tim Gallagher
Deep Impact Boats
General Manager
(305) 343-7990
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08-27-2003, 09:33 AM
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#9
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Registered
Join Date: Jul 2003
Location: Spring, TX
Posts: 2,750
1998 Wellcraft 22' Scarab
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What is the internal difference between the 500-EFI and the 525-EFI?
Roby
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08-27-2003, 01:34 PM
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#10
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Registered User
 Gold Member
Join Date: Feb 2001
Location: Tampa, Indian Shores Beach
Posts: 3,301
Don't even mention the word boat
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26Sonic,
I have owned both and go with the 500efi, it sounds meaner is faster in hp and rpms, just all around better motor. Plus you will always wish you had it if you go with the regular 502.
Will 
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