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    First Pics: MHP M156/M159 Rifle Drilled 9310 Billet Camshaft Blanks

    MHP is proud to be the only aftermarket tuner featuring aftermarket camshafts for the AMG M156/M159 Series of engines. Cams are billet 9310, rifle drilled, and after final heat treating and polishing look like black chrome. DLC coating for cams and buckets is optional.

    Click here to enlarge

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    Gains will range from 50-90HP N/A on the stock bottom end depending on supporting mods, tuning, and the specific grind in question.

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    Pics of the stock cams for sake of comparison (lobe size/shape)

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    I look forward to seeing the results but didn't you tell me extracting performance out of the stock cams was extremely difficult and you weren't even sure if it could be done? I think it was something to do with the grind and material?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Click here to enlarge

    Another...

    The M156 is seriously under cammed. It has sticks that are on par with 4.6L 4v Modular cams despite being 99CI larger, stock cams have zero overlap as well so we aren't taking advantage of those collectors just yet. There are HUGE gains to be had in the cam dept on these motors no question. AMG had to use tiny cams to pass emissions and for fuel economy with such a large N/A motor in such heavy platforms.

    We talked before about the not so hot gains with S65/S85 cams?

    Stock M156/M159 cams are cast chilled nodular iron, which is too soft to regrind. Cam regrinds are $#@! anyway, so it was billet from the beginning for us. These cams in theory at least will eliminate the cam scoring issue that plagues M156s due to the flat buckets (not spinning) and the lack of cam dowels which allows the cam lobes to hit the bucket centerline vs offset thereby not spinning the bucket and galling the cam. You want the lobe to hit off center so the bucket spins to dissapate energy.

    Anyway since our cams are so hard they won't gall even if the bucket doesn't spin.

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    Click here to enlarge Originally Posted by MHP LLC Click here to enlarge
    Stock M156/M159 cams are cast chilled nodular iron, which is too soft to regrind.
    That is what it was, makes sense. You needed blanks to your spec to do what you were able to do.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Is that dad's set. F'en A bro great job

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    Click here to enlarge Originally Posted by Mthis Click here to enlarge
    Is that dad's set. F'en A bro great job
    Why are you homeless?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    That is what it was, makes sense. You needed blanks to your spec to do what you were able to do.
    Yes, one of the major hurdles was making the blanks. That along with about 500 other things it seems, it was not an easy task to get where we are but it should slam the door shut on M156/M159 performance for us. Stroking will be icing on the cake.

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    Click here to enlarge Originally Posted by Mthis Click here to enlarge
    Is that dad's set. F'en A bro great job
    Thanks Hagi!!! That set is destined for a CLK BS.

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    Click here to enlarge Originally Posted by MHP LLC Click here to enlarge
    Yes, one of the major hurdles was making the blanks. That along with about 500 other things it seems, it was not an easy task to get where we are but it should slam the door shut on M156/M159 performance for us. Stroking will be icing on the cake.
    I think the stroker motor will be truly awesome. Nothing like brute force NA power.

    Hmm... a CLK63 black series with your stroker motor and some juice would be a ton of fun.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    Is diamond-like-coating worth it? I was planning on doing it for valve-train parts in my VG30dett build. What are some of the benefits?

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    DLC is "Diamond Like Coating" and has been used in industrial drills, etc for over a decade now. It's basically a super hard coating that eliminates friction. Ferrari claimed a 8% frictional loss when using DLC on it's cams/buckets in the 599GT0 vs GTB.

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    Click here to enlarge Originally Posted by MHP LLC Click here to enlarge
    DLC is "Diamond Like Coating" and has been used in industrial drills, etc for over a decade now. It's basically a super hard coating that eliminates friction. Ferrari claimed a 8% frictional loss when using DLC on it's cams/buckets in the 599GT0 vs GTB.
    So is that a "yes, I would use it"? Click here to enlarge

    8% sounds good to me! I will be approaching 8500rpm.

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    Click here to enlarge Originally Posted by SlicktopTTZ Click here to enlarge
    So is that a "yes, I would use it"? Click here to enlarge

    8% sounds good to me! I will be approaching 8500rpm.
    It really all depends on what your components your VT consists of. What metals are used? We have 9310 on 9310 so the savings won't be as great as on Ferrari's V12 but there are still savings to be had. If cost effective I would go for it!


    Thanks

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    Good stuff Andy. Do you know when the CLK BS will have these installed?

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    Click here to enlarge Originally Posted by Nrgy Click here to enlarge
    Good stuff Andy. Do you know when the CLK BS will have these installed?
    Hey Jeff,

    Asap, along with a handful of others! Objective results coming soon.

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    Hey Andy - look forward to dynos and seeing (but especially hearing) video clips of these babies. Nice work - an angry, somewhat-lopey 63 will be pretty sweet. Asked on AMGP as well, but figured you probably visit here more often... do the lobes have tooling marks/ridges on them? Never seen that on a cam before - is that on purpose? Or an optical illusion?

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    Click here to enlarge Originally Posted by c32AMG-DTM Click here to enlarge
    Hey Andy - look forward to dynos and seeing (but especially hearing) video clips of these babies. Nice work - an angry, somewhat-lopey 63 will be pretty sweet. Asked on AMGP as well, but figured you probably visit here more often... do the lobes have tooling marks/ridges on them? Never seen that on a cam before - is that on purpose? Or an optical illusion?
    Hey Brett, glad to see you here. I'll answer on AMGP as well, thanks for the heads up. M156s/M159s with our sticks will sound like cammed big blocks, there is no sweeter sound than a lopey 4v!

    You are correct there are ridges, these are the blanks we'll use to custom grind each set to order. To get them ready to install (I'll post pics of them in this state very soon) we need to final grind, polish and heat treat one more time. After that the exterior color will change (to more of a black or smokey chrome), and they will be smooth as a baby's butt.

    Thanks!

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