Cool Article:Big Bang Theory
#52
That motor is pretty sweet though if i had the means to go new that would probably be on the short list for sure. There was actually a surprising amount of LS based engines at IBEX. Heard that the emissions reg in the coming years was going to be all engines under 500hp. . . . . . fingers crossed on lots more of these.
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Last edited by glassdave; 11-29-2011 at 06:28 PM.
#53
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I think that Mast is just in the first stage of proving the performance and durability of the LS platform for marine use...because really, as of right now, there isn't much hard data and facts out there regarding LS engines in marine applications.
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#56
Dave, I agree completely. I used to work for Merc in Fond du Lac in Plant 12...I worked in the ITC (indoor test center) area as an engine development engineer and ran tests with engines running literally hundreds of hours of WOT for hours at a time and then idle for hours at a time, then back and forth many times. Clearly a marine engine needs to be robust enough to handle the duty cycle imposed by boaters.
I think that Mast is just in the first stage of proving the performance and durability of the LS platform for marine use...because really, as of right now, there isn't much hard data and facts out there regarding LS engines in marine applications.
I think that Mast is just in the first stage of proving the performance and durability of the LS platform for marine use...because really, as of right now, there isn't much hard data and facts out there regarding LS engines in marine applications.
didnt get a chance. These were actually quite a few with LS's in there display.
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Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
#57
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Not looking for that though, i am simply looking to build under 500HP for a nice reliable runner. Personally i dont need 1200+ HP in a 27. Also not looking to buy engines i have a builder in mind already that is well up to the task. Right now i am just looking at options on the various LS blocks/heads/induction available and wondering what is the best starting point.
Here's some out of the crate LS7's with only a cam swap. As usual I think Weismann was ahead of the curve running LS's years ago. I'd like to hear an update on his experience with them. Sounds awesome! [YOUTUBE]http://www.youtube.com/watch?v=EFZP9G3K-CE&feature=related[/YOUTUBE]
Last edited by HaxbySpeed; 11-29-2011 at 11:51 PM.
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Awesome vid Haxby!! Thanks for posting.
I agree that the 525 is amazing...hoping my next rig will have one.
My development work was primarily reliability related on the Verado and a couple other outboards...the REALLY cool stuff (525, 1075, etc) were all across town up on the hill at the Merc Racing plant.
My development work was primarily reliability related on the Verado and a couple other outboards...the REALLY cool stuff (525, 1075, etc) were all across town up on the hill at the Merc Racing plant.
Last edited by Wasted Income; 11-30-2011 at 09:44 AM.
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CMI makes a nice unit but a little pricey. There are lots of cast manifolds available too. We've been using LS engines for years in aluminum jet boats up here. If you want to make your own the cheapest route is GM performance parts. They've really done a good job of keeping parts prices down to help promote the platform. The LS3 is a great starting point if you want an all aluminum engine and will make 500hp with just a cam swap. Personally I like the LSX 376 forced induction package. It's got a tougher rotating assembly and 9:1 compression. With a cam swap it'll make just a bit under 500hp but live on cheap gas.