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Why the bleed lines on the side of the block. My Super Magnum 225 doesn’t have them.Another Brand New promax block finished up ready to roll ! View attachment 13427
I’m envious; wishing I had one of those blocks. Daryl Lane ported one for me that turned 10,800 rpms with a 24 Yamaha and 1.87 gears on a 1400 pound Allison Drag witha horn on the motor.I’m guessing for older applications like the 2.5 245 and 200 carb motors . This came in stamped with a 2017 production date brand new straight from mercury . A month later we got another one came in with out the bleed lines . View attachment 13430
I’d appreciate that; please keep me filled in.I’ll let you know how this motor runs soon . We are flooded out here where we run .
That’s a good start. She should limber up and turn more rpms unless you have a limiter in the ECU. You may get to 7500 or so.Hey gmorgan , I got to run my new motor yesterday at the lake . I was loaded with a full tank of fuel , cooler , my wife and myself . It ran a very quick 91 @ 7100 rpm with a 14.5 x 28 Hoss prop that’s at least 9 years old . Still needs some fine tuning and my other prop “Drag3” to try .
Best thing I ever did to my motor was have the stock Brucato 225 curve removed and have Todd Catrett install his version of an A6 curve and go to 56 pounds on the regulator. I had a problem where I could not get the midrange lean enough to not four stroke without being too lean at WOT.No limiter . The brucato box is unlimited with a 260 fuel curve and 56psi fuel regulator . I think like you , with a little break in time and some fine tuning so it idles better ,plus a better prop it’s going to be a great build !
I ran the Jasper River Run last year and this year. With Todd’s curve I used somewhere between 7.5 and 9.5 gallons less fuel. I can’t be exact because it is hard to know whether I started with 30 or less gallons. I filled the tank until it wouldn’t take any more fuel, but there was still air in the top of the tank.I met Todd in jasper this past weekend . Super nice guy ! I want to send him my box to see if he can improve it some .