Ls7 Nsx
Thread TERRORIST
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There was nothing wrong with pushrods when they first came into use as man attempted to outrun dinosaurs. But like I said, build an engine with pushrods, and build the same engine with DOHC, and tell me which makes more power. It'll be the DOHC every time. I don't dislike the corvette because I think its slow, I dislike it because it could have been faster. I understand GM cuts costs like every major car company must do to make money, doesn't mean I have to agree with it.
Either way I know you're just jealous that my engine has DOHC and 5 valves per cylinder and outputs more than 12 BHP/L
Either way I know you're just jealous that my engine has DOHC and 5 valves per cylinder and outputs more than 12 BHP/L
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Build me the exact same engine with pushrods and DOHC, see which one makes more power and is more efficient. The pushrod engine wins ease of manufacturing and cost, and that's about all its good for.
The only good corvette engine was the LT5 in the C4 ZR1, all aluminum high comp DOHC V8 engineered partially by lotus. They showed GM the way, and GM went right back to ancient shit because they're cheap. Except for the northstar, which as we all know is the true powerhouse of GM engines.
side note: fuck the H button on this shitty keyboard.
The only good corvette engine was the LT5 in the C4 ZR1, all aluminum high comp DOHC V8 engineered partially by lotus. They showed GM the way, and GM went right back to ancient shit because they're cheap. Except for the northstar, which as we all know is the true powerhouse of GM engines.
side note: fuck the H button on this shitty keyboard.
Better yet, make it lighter than the LS7 (good luck with 3 more cams and twice the valves), keep the CG low, keep it compact to fit between the Vette's suspension, make more power and get the same gas mileage (sorry BMW M3 and GT3). And you already addressed the cost issue.
Sorry, but the LSx series of motors will shit all over your theoretical DOHC all day in those categories.
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Go ahead and describe this "exact same motor".
Better yet, make it lighter than the LS7 (good luck with 3 more cams and twice the valves), keep the CG low, keep it compact to fit between the Vette's suspension, make more power and get the same gas mileage (sorry BMW M3 and GT3). And you already addressed the cost issue.
Sorry, but the LSx series of motors will shit all over your theoretical DOHC all day in those categories.
Better yet, make it lighter than the LS7 (good luck with 3 more cams and twice the valves), keep the CG low, keep it compact to fit between the Vette's suspension, make more power and get the same gas mileage (sorry BMW M3 and GT3). And you already addressed the cost issue.
Sorry, but the LSx series of motors will shit all over your theoretical DOHC all day in those categories.
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The weight difference would be maybe a couple of pounds, completely negligible. You add 3 cams but you lose all the pushrods and rocker arms. The CG would likewise not be shifted more than a few ten thousandths of an inch, which is again negligible and could be accounted for by changing the oil tank design or something equally as trivial. The engine wouldn't need to be physically larger at all. If the cams called for more valve cover clearance you could easily shorten other components to account for that, if you shortened the stroke you could rev even higher. Audi's V8 engines fit between the radiator and front axle, just as my V6 sits entirely in front of the front axle. They sit the 4.2 in the R8, and even get the 5.2 V10 from the gallardo and the V12 TDI engines to fit without any issue. I don't know why you think DOHC engines are all huge. It would make more power because it could flow more air and that flow is more efficient. Bam.
Ever see a side by side comparison of an old 302 and a new dohc 281?
I race sailboats
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Nope.
Cold Ass Honky
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So pushrods are all about saving space?
I race sailboats
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Kinda odd how none of the LS series engines in those pics have any accessories, and pretty much all the other engines do.
