496 Dyno testing and myth busting!
#41
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#42
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Great information. I'm shocked with the 60hp loss through the outdrive . Maybe my insurance will go down if I tell them my prop shaft horsepower.
#43
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That's what I heard abot the turbolators. For condensation in mid-winter climates like Michigan, Wisconsin, etc.
Hopefully great news about the 496's. Otherwise the cost of boats with a minimum of 525's standard package would jack up. Not to mention drop in re-sale value....
Hopefully great news about the 496's. Otherwise the cost of boats with a minimum of 525's standard package would jack up. Not to mention drop in re-sale value....
#44
I guess that also goes to show that the 496ho's are not 425pshp. Ive heard people battling it out that the 496ho is 425 and the hp500 is 470 so theres not much difference.
#45
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Great Thread!
Hey Bob,
Have you ever hooked your propshaft Dyno to a 415HP/502MagMPI Bravo 1 package?
I've read that the 502Mag only makes about 400HP at the crank so that would only be about 360 @ the prop?
Thanks,
Hey Bob,
Have you ever hooked your propshaft Dyno to a 415HP/502MagMPI Bravo 1 package?
I've read that the 502Mag only makes about 400HP at the crank so that would only be about 360 @ the prop?
Thanks,
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Patrick
Patrick
#46
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I've heard that too...that the 502 MAG was always weaker than advertised when dyno'd. I believe Merc and the other manufactures have to be within +/- 10% of the advertised HP.
#47
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That's what I heard abot the turbolators. For condensation in mid-winter climates like Michigan, Wisconsin, etc.
Hopefully great news about the 496's. Otherwise the cost of boats with a minimum of 525's standard package would jack up. Not to mention drop in re-sale value....
Hopefully great news about the 496's. Otherwise the cost of boats with a minimum of 525's standard package would jack up. Not to mention drop in re-sale value....
#48
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Shooter, how did you have your elbows polished? I've got the F&M stainless motor covers, and getting the elbows polished would really make for a nice touch on these black motors.
#49
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Merc in the later years dropped the 470 rating...