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Stock c8 makes 558whp 515wtq

Discussion in 'Pics and Videos Buffet' started by john11gt, Oct 21, 2019.

  1. ZYBORG

    ZYBORG Let's roll.. Premium Member Established Member

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    420 whaaat????

    ???
     
  2. Klaus

    Klaus Premium Member Premium Member Established Member

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    I think you are talking about the C6 LS7. Regardless, a bad ass motor. If this article is to be believed GM has figured out a way to produce and warranty a 6.2 NA motor that makes +50 more than a Katech built LS7? No way.
     
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  3. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

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    FWIW The Gen V 6.2 GM used in prototype/IMSA weathertech racing makes 600 hp. That said I don't think GM is sneaking those into the C8 press cars. The factory motor has to pass emissions and run on pump gas.
     
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  4. Diablo Mike

    Diablo Mike Trinity Guy Established Member

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    Pretty sure the IMSA spec is a 5.5L LT based engine. Been a 5.5L limit since the C6R.

    They are often restricted by throttle inlets, etc, in an effort to limit power or torque for BoP.
     
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  5. blk02edge

    blk02edge Well-Known Member Established Member

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    Just want to point out that the entire article needs to be read before you go bananas. They do somewhat explain the weird numbers. Its definitely not entirely click bait
     
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  6. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

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    The new motor from 2018 up is 5.5....2017 is last year they used 6.2 GEN V...at least in the caddy race cars. Which I should clarify that I was referring to caddy race cars.
     
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  7. tones_RS3

    tones_RS3 I like members members. Premium Member Established Member

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    Ummmmmmmmmm,............................the C8?!?!
    LMFAO

    giphy.gif

    giphy-downsized-large.gif
     
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  8. kevinatfms

    kevinatfms Ex-Ford/Kia/Hyundai Tech Established Member

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    ON D BIT likes this.
  9. bullitt2735

    bullitt2735 Well-Known Member Established Member

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    what's your dyno trap? trap speed doesn't lie. That being said if the c8 weighs over 3622 without driver and it trapped 123.2mph (weight and mph taken from mototrend)

    The engine definitely has to me making around 550-575hp with that weight and trap
     
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  10. Serpent

    Serpent Bike or Cobra? Established Member

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    Theres multiple classes in IMSA, the prototype class makes more than the GTLM class (thats the class the c7r and c8r are in). all restricted to 500-525hp, somewhere around that ballpark.

    I dont think they ever used a 6.2. Cadillac racing is different from corvette racing.
     
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  11. me32

    me32 BEASTLY SHELBY GT500 TVS Moderator

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    My thinking exactly
     
  12. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

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    They snuck a 2.7 Ecoboost into it...didn't they @03cobra#694
     
  13. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

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    its a GM mill...however that's not really the point...GM can make this kinda power out of a 6.2, but I don't believe that is the case at all here regarding these dyno numbers. I would chalk these numbers up to dyno shenanigans, or operator error....Though I do believe the factory LT2 mill is probably making a little bit more than advertised.
     
    Last edited: Oct 21, 2019
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  14. TERMN8U

    TERMN8U Well-Known Member Established Member

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    I meant C6. ‍♂️Thanks for the correction.
     
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  15. 03cobra#694

    03cobra#694 Want to play a game? Staff Member Super Moderator

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    2 of them.
     
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  16. blk02edge

    blk02edge Well-Known Member Established Member

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    They also made 478whp in the lower gear, no 1:1 ratio. Also baselined a ram after and pulled realistic results.

    GM engineering also said the car will defintitely make considerably more than SAE advertised power when cold.

    Since you didnt read the article :D
     
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  17. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

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    I don't really buy the explanation written in the article, especially since this car made the same power pass after pass....MT is trying to sell some mother****ing magazines :D

    maybe those fellas put a little gm hot cam in it and played with PE :D
     
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  18. blk02edge

    blk02edge Well-Known Member Established Member

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    Haha maybe some nawz
     
  19. UBNZO6D

    UBNZO6D Life-long Hot Rodder Established Member

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    123 @ Fontana is hauling the mail, that's 127/128ish @ MIR or Atco.
     
  20. 03Sssnake

    03Sssnake TK-421 Established Member Beer Money Bros.

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    Dude they are sending me free magazines and I haven’t had a subscription in 6 years...lol mfers at MT are thirsty AF...
     
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