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Tuesday, October 6, 2015

What do Corvettes GT LMP, C7 GT3 and C7.R have in common?

If one believed the marketing bullshit pushed by +General Motors on the Chevrolet website and even more bullshit spouted off constantly by +Tadge Juechter , buyers of the newest Corvettes Stingray and C7 Z06 do not just buy the newest and greatest Corvettes ever or even a self proclaimed SUPERCAR, they are buying cars that dip into supposedly rich Corvette racing heritage.  In other words, the "lucky" buyers buy cars that are derivates of race cars.

Unfortunately, there is a slight problem here, GM and Juechter stretch the facts to the point where the stretch becomes an outright bullshit and fraudulent marketing claim.  What is going on here?  Would GM lie to their customers to promote sales?  Would Juechter feed the Corvette enthusiasts with bullshit?  After all, automakers like Honda make the same claims, referring to their racing program as the foundation of certain street legal automobiles. 

So... let us go down the list of those cars that supposedly put the newest Stingray and especially Z06 "at the intersection of LeMans and autobahn" and put the buyers behind the wheel of a "disguised race car".

So here is the latest iteration of Corvette Daytona Prototype class... REAR MOUNTED MID ENGINE STEEL space frame designed and fabricated by a sanctioned supplier, along with the body and powered by not the current LT series engine but the previous generation LS7, reduced to 5.5l and using multiport injection and sequential six speed transmission.  Suspension: custom coilovers.  Parts common with Corvette C7 Z06: headlights and tail lights.



Moving along, the C7.R car and the bullshit and misinformation behind it, as discussed here long time ago... The car is built by Pratt and Miller, just like the previous versions. 
The chassis consists of stock aluminum C7 frame modified with addition of full safety cage.  Suspension uses custom coil overs.  Engine is once again, 5.5l variant of C6 LS7 block, with addition of direct injection, six speed sequential gear box.  Parts in common with C7Z06, headlights, tail lights, rear bumper, door shells, partial C7 frame. 


Finally, here is the newest addition, Callaway Corvette C7 GT3.  Unlike the first two cars, this car uses a normally aspirated variant of LS9 block based and using multiport fuel injection.  Suspension is coilovers,chassis similar to C7.R, carbon fiber body panels (made in Germany, along with the rest of the car).   Transmission is once again sequential six speed manual gear box.  Parts in common with C7 Z06: partial chassis, headlights, tail lights.



Nothing could be further from the truth regarding the racing experience laying foundation for the development of these cars but... three cars have one thing in common: they all avoid using the current generation of Corvette engines, LT series, supercharging and the leaf springs. 

Now, Callaway is the real curious case here.  Never mind the story with LS7 based two other cars but what could possibly drive Reese and his tupee to ditch the newest and greatest Corvette engine ever
and go with LS9 instead?  Could it be the matter of reliability and overheating issues?  Certainly, considering the current offerings from Callaway that include supercharged Stingray and "fortified" Z06, why wouldn't Reese rely on LT4 as the foundation for his racing project? 

As already pointed out in this blog, Juechter and his crew can bullshit the public all day long about racing credentials of the newest Corvettes, including the Z06 flagship but the reality of the situation accomplishes the exact opposite.  Of course, as long as the senile and gullible buyers can be found, the bullshit shall continue, with GM claiming those race credentials while peddling true pieces of shit to the dumb buyers, hoping just a few try to live up to the claims and only a few of these LT1 and LT4 turds blow up.

Of course, GM is not shy about bullshitting the senile buyers, telling them partial truths and technically not lying but accomplishing exactly the same thing, as continuously proven by the tools learning the hard way that there is a big difference between illusion and reality.


4 comments:

  1. I see that the C7.R car retains the 'fangs' on the front bumper. I wonder why they'd do that if it was so inefficient. Their race car has always done well as far as I know.

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    Replies
    1. As far as you know does not mean much obviously. When GM tried to force AFM on C6, it failed miserably and C7.R has had quite a few mechanical failures.

      LOL, at your fangs insinuation, too. Who do you think pays for these cars and then uses them in the Z06 advertisements? Hard to see there are no leaf springs on C7.R but would be super easy to notice lack of these fangs. Aerodynamics and engineering are less important than marketing. No surprise you cannot figure this part out.

      Delete
  2. Ok the part about the C7.R's engine being an LS7 is false. The C7.R uses an LT5.5. And technology used in the C7.R IS used in the production Z06, and I can say that because my dad owns a C7 Z06, and it's quite amazing.

    ReplyDelete
    Replies
    1. You and your dad are victims of misinformation although that LT5.5 gave me a chuckle.

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