Carobu Engineering - 560 Dyno Testing

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Grand Master
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All things being setup correctly, I think 450-500hp is achievable for a modified HC 560 and 600-650hp for a 6.9 HC. And that’s NA people, no turbos or schargers necessary! Unless you really wanna go nutz!
 

abl567

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All things being setup correctly, I think 450-500hp is achievable for a modified HC 560 and 600-650hp for a 6.9 HC. And that’s NA people, no turbos or schargers necessary! Unless you really wanna go nutz!

And the drivability? Cost? Reliability?
Torque is the Target, power needs revs.
 

motec 6.9

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With volumetric efficiency power will increase to a point . I already know this from extractors and exhaust. And having tried a larger throttle body. Now I have to fit my billet throttle and frankencis and tune once I have car back. Knowing my luck transmission will cry enough.
 

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That’s not using radical cams either! Might even use LESS fuel depending on how they’re driven! Reliability is built into the stock engines & won’t be affected.

This one apparently made 600hp and that was years ago & prior to the tech now available:
BD051004-B95-E-4-DB8-940-D-5-F0070-DA08-C9.jpg
 

motec 6.9

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Karl Middlehause KHM himself. Jay Leno bought his 600 that has efi and supercharger .
 

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FYI 423lbft is 574Nm. The std Euro 6.9 makes 550Nm which is rather substantial as we know. Making extra torque is no small feat so it’s quite an achievement if true figures.
 

motec 6.9

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My 6.9 is already about 40 foot pounds above that figure dyno corrected.
 

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Grand Master
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Well that sounds encouraging!

So I find it's always better to talk to the horse.... So after messaging Carobu directly they tell me their original figures were incorrectly corrected (they discovered this recently). Not sure why engine dyno figures need to be corrected, but anyways. So the correct figures are (still impressive):

350.9 hp and

395.1 lbft.

Doesn't quite beat the pre-merger AMG M117 DOHC Hammer at:

380 hp and

417 lbft.

Considering the Hammer was a 6L with 32v, the SOHC is closing the gap for FAR less coin!!!
 
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motec 6.9

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Still impressive none the less
 

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Motec what were your figures calculated at the flywheel (I know it's a different engine)?
 

motec 6.9

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2 sheets one Horsepower actual at the wheels and horsepower corrected at rhe wheels all dyno's can do it
 

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