502efipower
11-23-2002, 10:40 AM
#1
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502efipower
Does anybody know what a merc502 efi motor makes as far as power goes?What are they rated at?
What can be done to increase these motors with out realy hurting reliability?
What can be done to increase these motors with out realy hurting reliability?
11-23-2002, 11:02 AM
#3
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I was trying to get you a link to information at Mercurys web site to information on it but it looks like they have updated their website and I can't find the information I once had.
Another place you might try is
http://www.boattest.com/main.asp
right now some of the links don't work.
Cordell
Another place you might try is
http://www.boattest.com/main.asp
right now some of the links don't work.
Cordell
11-23-2002, 11:52 AM
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yes, 415 hp @ the propshaft,
i have never seen any crankshaft
hp #'s, would guess 445 hp, figuring
the drive eats up 30 hp (hp500=470pshp)
as far as the "increase"goes it depends
on how much your after, and how much $$$$
you want to spend.
i have never seen any crankshaft
hp #'s, would guess 445 hp, figuring
the drive eats up 30 hp (hp500=470pshp)
as far as the "increase"goes it depends
on how much your after, and how much $$$$
you want to spend.
11-23-2002, 04:49 PM
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The 502 Mag EFI works well with a stage 1 Procharger. I have one running 5lbs max boost with Stainless Marine exhaust and a reprogramed ECU. Have not dyno'd it but Procharger has done the same setup and got 620HP. It is very reliable, idles and shifts like a stock motor. You come on boost around 4,000 rpm and it really kicks in, up to that point it handles like a stock motor.
