zeitgeist57 Posted February 18, 2019 Report Share Posted February 18, 2019 LS7-based DOHC 750hp 8,000rpms :megusta: http://roadstershop.com/engines/mercury-racing-sb4-dohc/ Quote Link to comment Share on other sites More sharing options...
cstmg8 Posted February 18, 2019 Report Share Posted February 18, 2019 I would love to hear this thing. I wonder what the price range is? If you have to ask..... Sent from my Pixel 2 XL using Tapatalk Quote Link to comment Share on other sites More sharing options...
iwashmycar Posted February 18, 2019 Report Share Posted February 18, 2019 (important preface) Mercury is selling this crate engine as a turn-key product, including a fully tuned ECU and wiring harness. It even comes with the front end drive components such as the alternator, AC pump, pulleys, belts and all necessary brackets. There’s also an option to upgrade to a carbon fiber intake manifold cover and have it painted any color you want. What is the cost of this wonderful thing, you ask? Is it a fair trade over a year’s worth of therapy sessions? That’s for you to decide, but it comes to $32,995 and that’s with the ECU and wiring. https://jalopnik.com/this-750-hp-ls7-crate-engine-from-mercury-racing-will-s-1823828455 Quote Link to comment Share on other sites More sharing options...
Geeto67 Posted February 18, 2019 Report Share Posted February 18, 2019 every time mercury marine adds DOHCs to a SBC, the engine is legendary. BTW, why can't chevy do that? What's going on at gm where even FORD made the jump to DOHCs and chevy is still behind? Quote Link to comment Share on other sites More sharing options...
cstmg8 Posted February 18, 2019 Report Share Posted February 18, 2019 Awesome. Sent from my Pixel 2 XL using Tapatalk Quote Link to comment Share on other sites More sharing options...
Robochan Posted February 18, 2019 Report Share Posted February 18, 2019 BTW, why can't chevy do that? What's going on at gm where even FORD made the jump to DOHCs and chevy is still behind? Behind? The LS is one of the most compact engines due to its pushrods while still being a powerhouse. The coyote or even this mercury won’t fit into most cars like a corvette, Miata, Foxbody, etc. Isn’t their new torque converter trans faster than most double clutch’s? “WhY DoSnt ChebY mAke a MOtor THat cOSts triPlE a LS aNd woNT Fit in TheIR fLagsHip?” Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted February 18, 2019 Author Report Share Posted February 18, 2019 Ford just made a 7.3L gas engine for their HD trucks. Brand new in 2020...with pushrods. Different engine configurations for different purposes. LS does well on a balance of complexity/packaging/cost. Ford's got some screamer DOHC V8s, and more power to them as well! Quote Link to comment Share on other sites More sharing options...
Geeto67 Posted February 18, 2019 Report Share Posted February 18, 2019 Behind? The LS is one of the most compact engines due to its pushrods while still being a powerhouse. The coyote or even this mercury won’t fit into most cars like a corvette, Miata, Foxbody, etc. Isn’t their new torque converter trans faster than most double clutch’s? “WhY DoSnt ChebY mAke a MOtor THat cOSts triPlE a LS aNd woNT Fit in TheIR fLagsHip?” Car manufacturers don't really build their engines with the primary focus to swap into other platforms - they build them to use in their own specificly designed chassis first. yes the LS engine is compact, and maybe there is some merit in the engine being compact for new car sake, but if you look at the MM LS7 specs it's only 3 inches longer and 2 inches wider than a stock LS. My ass it won't fit into any corvette with those specs - Big block chevys are way larger than that. The lack of the coyote fitting into older products has more to do with how ford designed their old stuff than it does with the size of the coyote - the old 5.0L ford 302 engine was narrow and so they designed their cars with very narrow engine bays. Even their old products like the 429 didn't really fit into the old mustang chassis (ever see someone work on an old Boss429? engine has to come out to change the plugs). That being said, coyote fits in a fox so well they sell bolt on kits - and as for the miata? yeah there are plenty of 302 fords to swap in that chassis, and they make a better swap anyway than a coyote or an LS. Next to Honda, GM is one of the biggest engineering juggernauts in the automotive industry. They have in the past made DOHC v8s (original LT5, Cadillac Northstar, the new cadillac v8) but they always end up back with the pushrod v8. DOHCs rev higher, flow more, generally make more power, and are more fuel efficient. I feel like if GM adopted the DOHC layout, they would be leaps ahead of whats out there, but they keep coming back to that old pushrod v8 - how very harley davidson of them. Quote Link to comment Share on other sites More sharing options...
Versluis Posted February 18, 2019 Report Share Posted February 18, 2019 Car manufacturers don't really build their engines with the primary focus to swap into other platforms - they build them to use in their own specificly designed chassis first. :dumb: Quote Link to comment Share on other sites More sharing options...
Robochan Posted February 19, 2019 Report Share Posted February 19, 2019 and as for the miata? yeah there are plenty of 302 fords to swap in that chassis, and they make a better swap anyway than a coyote or an LS. Now I know you’re stupid. Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted February 19, 2019 Author Report Share Posted February 19, 2019 Next to Honda, GM is one of the biggest engineering juggernauts in the automotive industry. They have in the past made DOHC v8s (original LT5, Cadillac Northstar, the new cadillac v8) but they always end up back with the pushrod v8. DOHCs rev higher, flow more, generally make more power, and are more fuel efficient. I feel like if GM adopted the DOHC layout, they would be leaps ahead of whats out there, but they keep coming back to that old pushrod v8 - how very harley davidson of them. They are also more complex from an engineering standpoint, as well as considerably bigger packaging in an engine bay. They also did the "Shortstar" 3.5L DOHC V6 in the late 90s/early 2000s as well as some DOHC V6's in the Z24/Luminas in the early/mid 90s... Quote Link to comment Share on other sites More sharing options...
Dammit Charlie Posted February 19, 2019 Report Share Posted February 19, 2019 Huh. Coyote in a Miata.... Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted February 19, 2019 Author Report Share Posted February 19, 2019 Huh. Coyote in a Miata.... I think that's "fake news"...comments elude to it being made up. Quote Link to comment Share on other sites More sharing options...
Robochan Posted February 19, 2019 Report Share Posted February 19, 2019 I think that's "fake news"...comments elude to it being made up. Shits more fake than an Emma Watson porno. Quote Link to comment Share on other sites More sharing options...
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