454 mag rev limiter
#4
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Join Date: May 2004
Location: Flat Rock MI
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Re: 454 mag rev limiter
According to the merc service manual that I have, Rev limiter is set at 5100 with a recommended operating range of 4600-5000. If you want to raise it , go with a MSD soft touch with a 5200 or 5400 chip.You need to find out where your peak HP is and at what rpm it is at. Generally anything over that is not going to produce any better results. You would be just spinning the motor and your HP would start to drop after you have reached your peak rpm. Hope this helps.
#6
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Re: 454 mag rev limiter
My 1996 502 Mag, GenVI, is set at 5050 according to the Merc Service Manual or 5100 according to the owners manual if that helps at all.
#7
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Re: 454 mag rev limiter
The correct number is 5050
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#10
VIP Member
Re: 454 mag rev limiter
Most boats I have been in including my own are off by as much as 500 rpm + or-
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