Why are Vette's still push rod and plastic?
#1
Le Mans Master
Thread Starter
Why are Vette's still push rod and plastic?
Ok you Vette head experts, why in 2019 do Vette's still have a push rod engine and bodies still plastic (or some variance of plastic)? Thanks
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01-18-2019, 08:08 PM
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#3
There's no requirement to start a new thread every day.
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#4
Scientific Negotiator
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St. Jude Donor '07-'08-'10, '14
30mpg and no door dings while whuppin up on everyone.
I'd ask why the others aren't running SMC and rods!
I'd ask why the others aren't running SMC and rods!
#6
Yeah, first real snowstorm of the season tomorrow. I got 3 shovels and 2 ********* to help me clear the driveway. Counting the days to spring...…
Don't rag on old technology; they'll be making electric Corvettes soon enough......
Don't rag on old technology; they'll be making electric Corvettes soon enough......
#7
no rust.
not as heavy.
not as heavy.
Last edited by c54u; 01-18-2019 at 07:48 PM.
#8
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CORVETTE TODAY Host
St. Jude Donor'15
Lamborghini still uses push rods....if it's good enough for them, I think it's good enough for Corvette.
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#11
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#13
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Are you using the pejorative term "plastic" just to **** people off, or what? The original Corvette used a fiber glass body, an innovation of its time. The current SMC is a much more modern variation. You should ask why other models "still use" metal and have not upgraded to synthetic material. SMC is the more modern material, so you've got that whole idea entirely backwards. Why a push-rod? Why not? What's so great about a DOHC engine? It's much more complex and tends to whine like a ricer. The push rod is simple, has tons of torque, and holds its own with everything else, as the specs easily prove. Mine gets 27.5 mpg, so it has nothing to apologize for. Surely you know these basics already. The real question is, what value is there in starting an argument?
Last edited by mschuyler; 01-18-2019 at 08:25 PM.
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#15
Le Mans Master
Why change What Sells...So Their
#16
Safety Car
Actually, this gets discussed some around the rule making for various endurance racing series (ACO, organizers of 24 hours of Le Mans, and FIA and the US sports car authorities).
A pushrod V8 weighs less than a 4 cam DOHC v8 of similar displacement. Adding to the advantage, the weight in a pushrod V8 is lower, which makes the CG of the entire car lower. As long as you figure out how to make enough power, a pushrod V8 actually has those advantages over some of the more 'exotic' 4 cam engines that they are up against.
A pushrod V8 weighs less than a 4 cam DOHC v8 of similar displacement. Adding to the advantage, the weight in a pushrod V8 is lower, which makes the CG of the entire car lower. As long as you figure out how to make enough power, a pushrod V8 actually has those advantages over some of the more 'exotic' 4 cam engines that they are up against.
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#17
#19
Safety Car
My Mustang buddy says same thing. I tell him because it still kicks a Ford motors ***. The GM OHV still beat the Ford DOHC engine for top speed and is rock solid. Rumor has it C8 will be a OHC motor. NASCAR package is still a OHV motor and seems to perform just fine.
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V Vette (01-18-2019)
#20
Le Mans Master
Thread Starter
Are you using the pejorative term "plastic" just to **** people off, or what? The original Corvette used a fiber glass body, an innovation of its time. The current SMC is a much more modern variation. You should ask why other models "still use" metal and have not upgraded to synthetic material. SMC is the more modern material, so you've got that whole idea entirely backwards. Why a push-rod? Why not? What's so great about a DOHC engine? It's much more complex and tends to whine like a ricer. The push rod is simple, has tons of torque, and holds its own with everything else, as the specs easily prove. Mine gets 27.5 mpg, so it has nothing to apologize for. Surely you know these basics already. The real question is, what value is there in starting an argument?
Last edited by V Vette; 01-18-2019 at 09:10 PM.
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