LS Build: In Progress
03-01-2019 | 03:56 PM
#152
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From: Harrington DE
where I need it the most is above 6,000. This boat is under 5000 lbs with 2 of these motors. I don’t need any extra torque. I’m sure these motors will have more horses and ft lbs than the old school 5.7’s that came out.
03-01-2019 | 04:02 PM
#153
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From: San Tan Valley AZ
The old 5.7 and big blocks vs LS engines dont even belong in the same category. Light years ahead. Yours will be a goid runner just not optimal intake for rpm range of a boat but will mske good power regardless
03-01-2019 | 04:06 PM
#154
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From: Harrington DE
under 10/10 loss below 5000 rpm’s on a 6.2. But above 5000 should be 15-20 gain. It’s what I wanted. Upper end horses. Broad power curve. It will still make more power than the 5.7’s from 1500 rpm up.
03-01-2019 | 04:35 PM
#155
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From: Harrington DE
that intake design is no different than a 525 efi or the intake that came off of the 5.7’s. Straight runners with an open plenum.
Last edited by Hot Rod 29; 03-01-2019 at 07:06 PM.
03-01-2019 | 05:15 PM
#156
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From: San Tan Valley AZ
I just realuzed it is fitech. I tjought it was holley sniper intake, which is the one I tested before. Very similar design but have to testing on that intake to backup previous statement as it is not the holley. Disregard
03-18-2019 | 06:25 PM
#160
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Joined: Jun 2009
Posts: 952
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From: East Greenwich, RI
You almost want to go straight to a museum so it doesn't get dirty. Beautiful.
BTW - Does anyone have the dyno sheet/numbers for a stock Merc 330 or 420? I'd love to see how the torque numbers compare.
BTW - Does anyone have the dyno sheet/numbers for a stock Merc 330 or 420? I'd love to see how the torque numbers compare.
