Why are Vette's still push rod and plastic?
#41
Instructor
- less weight
- much more compact
- fewer moving parts
- lower height
- less cost
- cheaper to build and repair
- lower maintenance costs
- better low end torque
- better power density
- equal or better efficiency
The following users liked this post:
V Vette (01-19-2019)
#43
Le Mans Master
Learn the difference between your and you're. then we'll discuss this like adults.
#44
Instructor
Beautiful Vettes, you have good taste!
#45
Melting Slicks
Member Since: Apr 2002
Location: Tellico Plains Tennessee
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Corvette has already had a duel overhead cam engine, the LT5 designed by Lotus and sold back in 1990 as a C4 ZR1. Terribly expensive but fast for it's time. I saw one at a show with the original sticker on display and the ZR1 option was as much as the base car, about 30k. The engine was so complex neither Bowling Green nor any other GM plant could assemble it. Mercury Marine built it for GM, adding to the expense. Now couple a modern engine like that with a true carbon fiber body and we're talking about one expensive car, way beyond the purchase power of most of today's Corvette owners. But you'd have some bragging rights at the cars and coffee, for what ever that's worth.
#46
Safety Car
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#47
Racer
Your post (and this one) are intentionally provocative. You weren't asking a "simple question" at all or you would not have used phrases like "Why do Vette's still have a push rod engine and bodies still plastic." That is being intentionally judgmental. Then you have the audacity to accuse others of being angry. You are not fooling anyone. You are not the innocent you are claiming to be. Your posts and your constant polling are designed specifically to cause arguments. That you deny this is shameful.
#49
The engine being discussed is the Ford Single Overhead Cam (SOHC) 427; it was developed back in the 60's to beat the Chrysler Hemi in NASCAR but was never allowed to race. Chrysler developed a dual overhead cam 426 Hemi, but the engine never ran and was dropped when NASCAR would not allow the Ford engine to be used. Ford stuffed the "Cammer" into some Mustangs for drag racing, and they were very successful, ultimately giving birth to the Funny Car. Connie Kalitta, and a few others ran the engine in Top Fuel with some success. It was also used in some Ford bodied Funny Cars. I think a few even made it into Fairlane production cars. Very rare engine. Here is a link to the history of the engine:
https://macsmotorcitygarage.com/camm...d-427-sohc-v8/
Phil
https://macsmotorcitygarage.com/camm...d-427-sohc-v8/
Phil
Last edited by phil hunter; 01-19-2019 at 08:12 PM.
#52
Here’s your answer
Easy decision.
#53
Le Mans Master
Member Since: Oct 2005
Location: Left Coast, San Diego
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Your post (and this one) are intentionally provocative. You weren't asking a "simple question" at all or you would not have used phrases like "Why do Vette's still have a push rod engine and bodies still plastic." That is being intentionally judgmental. Then you have the audacity to accuse others of being angry. You are not fooling anyone. You are not the innocent you are claiming to be. Your posts and your constant polling are designed specifically to cause arguments. That you deny this is shameful.
#54
Melting Slicks
About the body panels, would you rather they be made from steel? Maybe aluminum? Just curious what the OP would make them from?
Nice article about current cars with aluminum parts.
https://www.motortrend.com/news/15-a...inum-warriors/
Nice article about current cars with aluminum parts.
https://www.motortrend.com/news/15-a...inum-warriors/
Last edited by proexpert; 01-19-2019 at 11:49 PM.
#55
Race Director
Member Since: Mar 2001
Location: Bonneville Salt Flats, 223mph Aug. '04
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Seriously? Can you not say, "cost, cost, COST?" Also, for the money both manage to work well.
I"m curious, though, what would you prefer to "plastic," carbon fiber? Or...???
I"m curious, though, what would you prefer to "plastic," carbon fiber? Or...???
#56
Le Mans Master
Thread Starter
Your post (and this one) are intentionally provocative. You weren't asking a "simple question" at all or you would not have used phrases like "Why do Vette's still have a push rod engine and bodies still plastic." That is being intentionally judgmental. Then you have the audacity to accuse others of being angry. You are not fooling anyone. You are not the innocent you are claiming to be. Your posts and your constant polling are designed specifically to cause arguments. That you deny this is shameful.
The following users liked this post:
JerryU (01-21-2019)
#58
Jeez, this again?
Because of COST. PERIOD!
They spendt the money over the years developing it, and the only reasons to change the engine design is that they are running on the edge of emissions and fuel consumption limits.
A 4 OHC 4 valve engine is MUCH more efficient.
Aluminim or CF, bodies would cost a lot more. It would require dealers to spend a lot of money on the body shop to deal with the Aluminium or CF repairs. (ask Ford or Audi about Aluminum bodies.) But, Chevy is putting Al doors, hoods, tailgates on trucks so they have to invest in the bodyshop anyway...
So anyway, it's about cost, and ROI...
Because of COST. PERIOD!
They spendt the money over the years developing it, and the only reasons to change the engine design is that they are running on the edge of emissions and fuel consumption limits.
A 4 OHC 4 valve engine is MUCH more efficient.
Aluminim or CF, bodies would cost a lot more. It would require dealers to spend a lot of money on the body shop to deal with the Aluminium or CF repairs. (ask Ford or Audi about Aluminum bodies.) But, Chevy is putting Al doors, hoods, tailgates on trucks so they have to invest in the bodyshop anyway...
So anyway, it's about cost, and ROI...
#59
Race Director
Speaking of alternative body material....
Stainless steel panels worked well on the Delorean but not really practical for Corvette because of weight.
Paint issues/dents/dings/stone chips practically eliminated. You just blend scratches/blemishes into the brushed finish with a scotch pad or steel wool. As long as you stick with the 1982 MT, nice sportscars. Handel great, but slow......................
Stainless steel panels worked well on the Delorean but not really practical for Corvette because of weight.
Paint issues/dents/dings/stone chips practically eliminated. You just blend scratches/blemishes into the brushed finish with a scotch pad or steel wool. As long as you stick with the 1982 MT, nice sportscars. Handel great, but slow......................
Last edited by Kevin A Jones; 01-20-2019 at 09:26 AM.