AMG went to nice lengths to make the AMG Hammer 6.0 engine a beast. Together with re-engineering it.
With regards to Mercedes V8’s, The M117 will get largely ignored. It’s in some fairly lazy automobiles, in any case. The R107 era 560 SL isn’t generally known as a street scorcher. The SEC that’s the foundation for this Hammer was respectable, nevertheless it wouldn’t scare a Camaro. However then AMG acquired ahold of the M117.
In 1986, the horsepower measure you’d get from a “560” Mercedes stands at 239 horsepower. AMG discovered a further 139 horsepower. Out of an N/A engine, that’s nearly remarkable. Whereas most firms will tune a automobile utilizing present {hardware}, or add a blower, Erhard Melcher determined to completely re-engineer the M117. And within the period, it created a legend as we see from this automobile on RM Sotheby’s.
By 1986, the M117 had aged 15 years. However Melcher didn’t see it as a misplaced trigger. In his eyes, a breath of recent air is all it nees, actually. Designing the cylinder heads to be DOHC and 4 valve as an alternative of two valve elevated air move.
Model new cylinder heads have been developed, taking the automobile as much as DOHC standing. However lets not relaxation on simply that anecdote. AMG created cylinder heads from primarily scratch. Granted, they may faucet into their motorsport information, however to make it work, there’s quite a lot of hurdles to beat first.
Energy is a high precedence, however so is reliability. If these heads fail, the AMG title is impacted straight. So oiling, cooling, and vibrations all have been ironed out. Then on high of that, there’s packaging. The M117 isn’t precisely a small engine and placing a pair of camshafts on the highest of every cylinder head takes up a whole lot of room.
Then, route the exhaust (the one with greater move price) round this new, wider cylinder head. And do the identical with the consumption manifold, too. Then be certain the timing chain is the proper size, and might accomodate any distinction in angle on the chain tensioner. Porting and sharpening the 2-valve cylinder head would have been means simpler. However that’s not the AMG means.
Respiratory apparently actually wakes up the M117, as the brand new heads, coupled with a displacement of 6.0 liters created the legendary “Hammer.” Quicker than any Ferrari or Lamborghini on the time, it put AMG on the map. Extra importantly, the M119 V8 is straight influenced by Melcher’s DOHC work.
Photographs: RM Sotheby’s
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