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Thread: This sounds like no Corvette I've ever heard

  1. #1
    Papa's Avatar
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    This sounds like no Corvette I've ever heard



    I wonder how many RPM that thing is doing -- sounds like 10K+.
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  3. #2

    Steve >> aka: GoDadGo
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    Papa,

    Sounds like a pair of P___ed Off four cylinder engines so I think the car is fitted with a flat plane crankshaft.
    My guess is that L-Series Block can handle the vibrations if the stroke was shortened to 3.25" or less.

    https://youtu.be/Hgi7gW_QyOA

    https://www.youtube.com/watch?v=HIxngbwE8jg

    What-Cha-Think?

    Steve
    Last edited by GoDadGo; 10-10-2019 at 08:57 PM.

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  5. #3
    Papa's Avatar
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    Quote Originally Posted by GoDadGo View Post
    Papa,

    Sounds like a pair of P___ed Off four cylinder engines so I think the car is fitted with a flat plane crankshaft.
    My guess is that L-Series Block can handle the vibrations if the stroke was shortened to 3.25" or less.

    https://youtu.be/Hgi7gW_QyOA

    https://www.youtube.com/watch?v=HIxngbwE8jg

    What-Cha-Think?

    Steve
    I think you nailed that one, Steve.
    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
    (Most viewed Roadster build thread on this forum!)

    Delivered: 6/17/2017
    First Start: 12/30/2017
    Completed: 12/7/2019
    Legal: 1/30/2020

    Member of the Mile-Hi Cobra Club
    Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
    Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread

  6. #4

    Steve >> aka: GoDadGo
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    Quote Originally Posted by Papa View Post
    I think you nailed that one, Steve.
    My Lucky Guess Seems To Now Be Confirmed!

    https://youtu.be/QDolx_sIa5s

    I think that going with the duel overhead cams will really make this thing scream.

    Also, I bet that Mercury Marine was the place where GM hid the development of the new Corvette engine since they already have a big inch DOC Marine LS-7 power plant that sports a conventional 90 degree crankshaft design.

    https://www.hotrod.com/articles/750-...roadster-shop/
    Last edited by GoDadGo; 10-12-2019 at 09:36 AM.

  7. #5

    Steve >> aka: GoDadGo
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    My O.C.D. Best Bet For Bore & Stroke For The C-8-R Engine.

    We know the LS7 block can safely be pushed to a 4.125" bore so here is my OCD best bet for Bore & Stroke for the C-8-R Engine.

    4.125" bore X 3.137795" Stroke = 335.47 CID

    M E T R I C...C O N V E R S I O N

    104.775 MM bore X 79.7 MM Stroke = 5.497.36 CC's or 5.5 Liters.

    My pal Phil races a TOJ-206, shown below, and routinely zings the engine to 10-K so I took that stroke and then played with the bore to get to 5.5 Liters.

    https://www.ultimatecarpage.com/spec...SC206-BMW.html

    https://youtu.be/zm2RdZ-FJmA
    https://youtu.be/uFm3CM8_Zf8
    https://youtu.be/JhR21Q24xHU

    Sorry, but I'm bored today doing some family member senior citizen sitting.

    Steve
    Last edited by GoDadGo; 10-12-2019 at 10:07 AM.

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