300 hp @ 4000 rpm...can it be done?

Discussion in 'Chevy' started by TXFlyGuy, Aug 21, 2012.

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  1. Oct 18, 2016 #21

    litespeed

    litespeed

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    Just to throw the cat with the pigeons,

    I know the LS V8 is a good solution but why not a BMW V12. Stay with me here fellas.

    The M73 5.4 V12 is a light weight all alloy, very compact motor that was designed to make big torque at low revs. To power the 7series luxury machine along and be capable of high Autobarn speeds. It is single cam and each head has its own separate ignition system and injection. It is designed to have limp home of allowing one bank of cylinders fail and it will continue firing the other bank.

    Due to a 60 degree V12 they are compact light and smooth. A much nicer solution on harmonics for direct drive or a gearbox.


    They are amazingly smooth - such you can rest a Aussie 50 cent on its side and rev the engine. _I have done it on my brothers V12, and 340hp. Correct the cams to suit, a higher compression ratio and that 300hp is attainable at 4,000rpm.

    And the sound of a healthy V12 is glorious. A version of this engine with twin cam heads powered the Maclaren F1.

    Later versions of BMW v12 6.0 litres and twin turbo and can be made do very big torque and hence power at prop friendly speeds.

    They are cheap to buy from a wrecker and easy to get parts for.

    A direct drive Bmw V12 could be built just right for a similar price as the new LS.

    And would be great on the right machine.

    The harmonics are the thing, just sounds right.
     
  2. Oct 18, 2016 #22

    Derswede

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    283 is the Chevy, the 383 is a large block Chrysler. The 283 was a tough engine, my father built quite a few, some beat Richard Petty.

    Derswede
     
  3. Oct 18, 2016 #23

    TXFlyGuy

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    You can buy a Chevy 383 from a number of performance websites. Perhaps Chrysler has one also.
     
  4. Oct 18, 2016 #24

    TXFlyGuy

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    The Titan T-51B has the BMW V12...

    [video=youtube_share;dO3ChxnihpI]https://youtu.be/dO3ChxnihpI[/video]
     
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  5. Oct 18, 2016 #25

    TXFlyGuy

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    And...video #2 of the V12:

    [video=youtube_share;JGHBFi60rG8]https://youtu.be/JGHBFi60rG8[/video]
     
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  6. Oct 18, 2016 #26

    RJW

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    I have two 5.3L Jaguar V12s if anybody wants them. Beautiful motors. $650 each or $1000 for both. Come get 'em.

    Rob
     
  7. Oct 18, 2016 #27

    Toobuilder

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    It's no secret that I'm not a big fan of scaled down warbirds, but hanging a genuine V-12 in one is pretty cool!
     
  8. Oct 19, 2016 #28

    TFF

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    The plus for the BMW 12 is really you can call it a rolls Royce being the same company right now. Kudos to pay for developing the 12.
     
  9. Oct 19, 2016 #29

    TXFlyGuy

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    The only downside is that it simply does not have the power to keep up with the LS3. And it is more expensive. In a side by side fly by, the Chevy is louder, and sounds better.

    Here the V8 and V12 do a fly by:

    [video=youtube_share;ogThexhvSAk]https://youtu.be/ogThexhvSAk[/video]
     
    Last edited: Oct 19, 2016
  10. Oct 21, 2016 #30

    mcrae0104

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    The airplane may be scaled down, bit the irony is full-scale...

    Sounds great, though!
     
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  11. Oct 21, 2016 #31

    max_burke

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    Perhaps given the war history but now that BMW owns Rolls Royce it only seems appropriate! That V-12 sounds incredible.
     
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  12. Oct 21, 2016 #32

    TFF

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    P-51s are not particularly loud for what they are. It would have been nice to hear each by themselves. Nice either way. P-51s have always sounded more Indy car than NSACAR to me.
     
  13. Oct 21, 2016 #33

    Toobuilder

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    Sure sounds a lot better than a O-200 or VW popping away!
     
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  14. Oct 22, 2016 #34

    TXFlyGuy

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    Here ya go...(V8)

    [video=youtube_share;veKWQMKwj-k]https://youtu.be/veKWQMKwj-k[/video]
     
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  15. Oct 22, 2016 #35

    TXFlyGuy

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    And...the V12:

    [video=youtube_share;virDRZ6HW_s]https://youtu.be/virDRZ6HW_s[/video]
     
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  16. Oct 22, 2016 #36

    TXFlyGuy

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    And one more video. This actually gives you a better audio of what the Mustangs (V8 & V12) sound like.

    [video=youtube_share;G7tqZl6Njck]https://youtu.be/G7tqZl6Njck[/video]
     
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  17. Oct 22, 2016 #37

    Toobuilder

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    Sure can hear that gearbox singing with both of them.

    Sorry, but the 12 sounds better.
     
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  18. Oct 22, 2016 #38

    TXFlyGuy

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    Some like the 12, some like the 8. Having listened to both of them, up close and personal, the 8 is louder inflight. The 12 sounds a bit better at low idle speeds. Neither one sounds bad at all.

    Keep in mind the V8 is a 327 truck engine. I suspect the 376 will sound better.
     
  19. Oct 22, 2016 #39

    Will Aldridge

    Will Aldridge

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    IMHO the 12 sounds more authentic as opposed to better. Better is of course a matter of opinion as well.
     
  20. Oct 22, 2016 #40

    TXFlyGuy

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    I would agree to a certain extent. But the general consensus among those that have heard both in person, in flight, is that they both sound real good. The V8 is definitely louder.

    With our GM Hot Cam, at idle speeds, we will sound very close to a V12 Merlin. Of course, nothing really sounds like a Merlin except a Merlin!
     

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