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Old 11-08-2003, 08:08 AM
EDDY merlin's Avatar
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Question merlin 540 ci dyno

Hello ,i have a merlin 540ci engine but i don't now howmuch horse-power and torque it has!
Is there somebody who can tell me what this engine brings?
It's a merlin 3.......10.200 tall deck.......callies crank(4.250)......oliver 6.800 rods...merlin rect heads 119cc chamber,310cc int run (manley severe duty;int 2.30/exh 1.88)......howards mechanical roller cam;#121153, 2500/6700 rpm valve lift;665...exh valvelift;679...adv duration;int 282...exh 290....1.7 roller rockers.
Duration@0.50:int...248,exh...254.,lobe sep 110 degrees
I hope that someone can help me find out this dyno
Thank you ....EDDY merlin:evil:

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Old 11-08-2003, 11:58 AM
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If set-up properly between 350 to 475
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Old 11-08-2003, 01:44 PM
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The merlin 509 crate motor which has the same heads as yours, similar cam, compression, intake, ect, has 540 hp that comes out to a little under 1.1 hp/cubic. A 540 with the similar combo should do that too. So you could probably figure around 550-600hp. Your motor has a little more cam and it is a mech roller instead of a hyd flat tappet in the 509 crate motor, so you might be closer to 600-650.

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Old 12-03-2003, 05:04 AM
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I agree with firestone.

The Merlin 540 is one AWSOME motor, and if its been tweaked 'o man!

Here's a link to the "factory" motors to help you to compare what you have with what is known.

I'm seriously looking at the 509 iron head myself. Even though its their "base" motor, I don't see how you can beat the price for what you receive!

P.S. - I have a friend who has relatives in the Netherlands, are you related to any Puerto Ricans?!!!
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