ZR1 Official Power Rating

Discussion in 'American Cars' started by raca4life, Apr 24, 2008.

  1. #1 raca4life, Apr 24, 2008
    Last edited by a moderator: Apr 25, 2016
  2. #2 bob777, Apr 24, 2008
    Last edited by a moderator: Apr 25, 2016
  3. 100hp/l doesn't mean all that much for forced induction engines, though I guess that's pretty decent for a such a large-displacement pushrod engine.
    An LS7 with variable valve timing, stop/start technology, and displacement on demand would've been way cooler than this engine though. Would probably weigh much less too; I have to think much of the estimated +200 lbs in weight is now placed on the front end and up high.
  4. I vote for 2000000000hp.
  5. 638hp and 604ft-lb engine with a 100k mile warranty, what a world that we live in.

    Also, when are magazine reviews coming in?
  6. #6 ajzahn, Apr 25, 2008
    Last edited by a moderator: Apr 25, 2016
    2009 Chevrolet Corvette ZR1: 638 Freakin' Horsepower

    DETROIT � The 2009 Chevrolet Corvette ZR1, which will go on sale this fall for around $100,000, will pack 638 horsepower.

    That makes the ZR1 easily the most powerful vehicle General Motors has ever produced and puts the king of Corvettes into a mighty exclusive club. The ZR1 essentially matches the output of the Lamborghini Murcielago LP640 and trails the extra-extreme limited-edition Ferrari Enzo by only a smidge. Perhaps, just as important to Chevrolet, is that the ZR1 brings 38 hp more to the American-car smackdown than the new Dodge Viper.

    And at an estimated weight of 3,350 pounds, each of the ZR1's horses will have only 5.25 pounds of Vette to carry around. That weight-to-power ratio is closer to the Enzo (5 pounds) than the Viper (5.75 pounds). The Murcielago LP640 saddles each of its horses with almost 6.5 pounds. The ZR1's hp peak comes at 6,500 rpm. Its torque peak of 604 pound-feet comes at a low 3,800 rpm. Passing should not present a problem in the ZR1.

    When it was unveiled at the 2008 Detroit Auto Show, General Motors estimated that the supercharged, 6.2-liter LS9 V8 would make at least 620 hp. The company has learned a thing or two about under-promising and over-delivering. The LS9 is a strengthened version of the tried-and-true small-block pushrod design, with an Eaton TVS (four-lobe) Roots-type supercharger and twin intercooler unit crammed in the V. Maximum boost is set at 10.5 psi and all of the engine's internals have been upgraded to more robust and/or lightweight parts, including a forged steel crank, titanium connecting rods and forged aluminum pistons. It's fitted with a dry sump oil system and is mated to a stout six-speed manual through a twin-disc clutch.

    In the most curious press release line we've read in some time, Chevrolet claims the ZR1 will be the most fuel-efficient 600-plus-hp car on the market today. Um, OK. Guess those upcoming CAFE standards have GM really spooked. In related news: My great grandmother won the national nursing home ultimate fighting championship.

    Notably absent from the press release was any boasting about the ZR1 being able to take the production-car lap record at the N�rburgring � something GM had earlier claimed.

    What this means to you: With the Viper on the chopping block and the Ford GT but a memory, the Corvette ZR1 will be the undisputed king of American sports cars.

    >>> www.edmunds.com/insideline/do/News/articleId=125924
  7. 100 hp/l doesn't mean all that much, ever. It's just a marketing tool companies use to make retards go ooooo, ahhhh.
  8. It means more for an American car.
  9. you should have made it a poll anyways
  10. It's like an amerikan SLR, but shittier and less exclusive.
  11. Should be power plenty to beat the heavy pos Nissan.
    Or not. <A BORDER="0" HREF="http://www.supercars.net/PitLane?displayFAQ=y"><IMG BORDER="0" SRC="pitlane/emoticons/grin.gif"></A>
  13. I was going to make this post <A BORDER="0" HREF="http://www.supercars.net/PitLane?displayFAQ=y"><IMG BORDER="0" SRC="pitlane/emoticons/grin.gif"></A> but then I was like "nah, let them dream".

    <A BORDER="0" HREF="http://www.supercars.net/PitLane?displayFAQ=y"><IMG BORDER="0" SRC="pitlane/emoticons/grin.gif"></A>
  14. lol
  15. but a lot better looking.
  16. No it does not.
  17. And only about 1/4 the price. And it comes with a proper manual transmission.
  18. #18 nappyjb37, Apr 25, 2008
    Last edited by a moderator: Apr 25, 2016
  19. #19 RLQ, Apr 25, 2008
    Last edited by a moderator: Apr 25, 2016
    ZR1 beater.
  20. VVT, DOD, and start stop would SAVE weight? no.

    the 200 pound weight increase is over the entire car, mainly from beefing everything up, bigger rims/tires, bigger this bigger that.
  21. #21 AmFm, Apr 26, 2008
    Last edited by a moderator: Apr 25, 2016
    30,000+ RPM?

    Does this thing not use valve springs or something?
  22. You've gotta be the only non-Corvette fanboy that seems to see things from a logical perspective and not just an Amerikuh rulez #1 Yaaa!
  23. I'm a big Corvette fan, but I don't deny other cars are great. Corvettes have their own appeal. They call it the poor mans Ferrari for a reason. If I had the cash, for sure I would McLaren over the Corvette though. Hell I would take an Aston Martin over the Corvette even though it is slower, because it is just a beautiful car. But I don't have the money, and the Corvette is an awesome car for the cash.
  24. How much weight would that add? Stop-start doesn't weigh anything, as that's largely electronically controlled.
    Now, factor in the weight of the supercharger, the intercooler, associated plumbing.
    The supercharger doesn't do squat for efficiency, unless you think parasitic drag is a good thing. And why do you think they need to beef everything up anyway? It's because of all that extra power. Bigger rims/tires = more unsprung weight, and that's not a good thing. You don't need bigger this, bigger that. The car has more carbon fiber panels, ceramic brakes, and yet it still weighs 200 more pounds? WTF?

    But hey, don't take it from me:
    "There’s no carbon fiber at the rear, part of an effort to keep fore-and-aft weight balance close to 50/50. Due to the extra mass associated with the supercharger, though, Juechter anticipates a 52/48 front-to-rear distribution and a curb weight 'between 3300 and 3400 pounds.'"
    --Car and Driver

  25. dont forget the 500 lbs

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