• Aug 24, 2010
Redline HTR-GS640/SC – Click above for image gallery

There is an old axiom of hot rodding that still stands true today. You can only go so fast as your pockets are deep. We see quite a few outlandishly-tuned exotics come across our inboxes from one day to the next, each boasting supercar-besting power figures and price tags to match. It's much more rare to see a shop create a car with serious power, a warranty, and a price tag that seems like a performance value.

But that's exactly what Howard Tanner of Redline Motorsports and Dan Carlton of DeNooyer Performance have come up with in the Redline HTR-GS640/SC. Take your run-of-the-mill Chevrolet Corvette Grand Sport with all of its factory handling, stopping and light-weight goodies, then throw a gamut of aftermarket go-fast parts at the engine. Tanner and Carlton bolt on an Edelbrock E-Force supercharger with long intake runners for big-time low-end torque. Throw in a new cam with more lift and duration, robust valve springs with titanium retainers and chromoly push rods. Ice that cake with a Borla exhaust and MGW short-throw shifter and you've got an $82,000 Corvette capable of popping the formerly almighty ZR1 in the eye.

DeNooyer Performance will even warranty the car for three years or 36,000 miles. Plus, you can remove the roof in the Redline HTR-GS640/SC. Not so much in the Blue Devil. Now if they could only come up with a sexier name for this blown Grand Sport... If you like what you see, Tanner and Carlton will be happy to put a set of keys in your hand. From what we hear, they even take trades and will work up financing. Check their site for more information.

[Source: DeNooyer Performance Division via Hemmings]

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    • 1 Second Ago
      • 4 Years Ago
      "chromoly push rods"

      What's next, "composite leaf springs"? Oh... never mind.
      • 4 Years Ago
      DeNooyer Chevrolet, in Colonie/Albany, NY? Right up the street from me, if this is them. They also do Camaros.
      • 4 Years Ago
      Answer: So you can actually get the name out of your mouth on the first try.
        • 4 Years Ago
        Heh, true enough.

        The GS is an odd duck, since it's a mix of parts from the other Corvette models. You can get it in an auto (yuck), it's widebodied like the Z06 and ZR1, you can get it with the magnetic suspension from the ZR1, and you can get it in either the targa or the convertible (I think). A key differentiator, though, would be the platform material. The GS is steel, like the base vette, while the Z06 and ZR1 use aluminum. I'm not sure how much of the CF and other exotic bits that GS has, either... but the GS does weigh a bit more. Aside from that, the LS3 that's used is a little different (due to it's sump system); as such, some bolt-ons need to be creatively mounted.

        Personally, I don't care much for the vents aft of the front fenders.
      • 4 Years Ago
      Earlier this year the Grandsport was selling for - $47,000 for a 1 LT packge. Add $8,000 for a supercharge (while you are pinning the crank tossing in a new cam is easy +$1,000. $700 for a good solid custom tune.....so why the $80,000 price tag?
        • 4 Years Ago
        You wrote exactly what I was thinking....
      • 4 Years Ago
      Because nothing beats performance straight out of the factory with warranty...
        • 4 Years Ago
        Exactly. For the record I read this article AND the ZR-1's warranty summary.

        Game. Set. Match.
        • 4 Years Ago
        Elmo: "And yet another user who fails at reading."

        You mean like the part where you failed to read the "factory" in "factory warranty"?
        • 4 Years Ago
        I'm pretty sure that 3 year 36000 mile warranty destroys the 5 year 100,000 mile warranty from gm.
      • 4 Years Ago
      uhhh because it's proven that it's capable
      • 4 Years Ago
      Take those damn stripes off and you got a deal!
      • 4 Years Ago
      I can't see the engine!

      I hate that they cover up the engine instead of design a great looking one. I want to show it off. I am always disappointed when the hood goes up and my view is blocked.
        • 4 Years Ago
        I completely concur. What's the point of a second hood under the hood?

        Even if the engine aint pretty, lemme look at it when I lift the bonnet.

        Please stop this madness. I'm looking at you GM.
      • 4 Years Ago
      I've dealt with Callaway charged LS3's and With the ZR1.... The ZR1 will always be the better package overall...

      If that were so, packages like the ZR1 wouldn't exist really.

      If you work with a ZR1 you will see where all the money is at.
        • 4 Years Ago
        Aluminum chassis, carbon fiber panels, ceramic brakes. Those silly, silly, pointless things.
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