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    • Watch a Dinan 4.6 liter stroker S65 V8 E92 M3 get smacked around by a cammed C5 Z06

      To get a lot more power of the E92 M3 in NA form beyond bolt ons increasing the displacement is really the way to go. An extra 600cc's is a nice chunk to pick up made possible by the relatively short stroke in stock form providing quite a bit of room to grow. However, the LS6 V8 under the hood of the C5 Z06 is sill larger at 5.7 liters. With an aggressive cam only the Z06 can put out in the 420 wheel range and with exhaust and intake 450 wheel is within reason.


      The S65 V8 at 4.6 liters is capable of 441 wheel horsepower. So, on paper, this actually makes for a fairly good race especially with a DCT M3. Yes, the C5 Z06 has a weight advantage but the M3's higher redline makes for a gearing advantage. So what is the problem? The 20 inch Hartge wheels the owner chose to put on his car which are basically boat anchors sapping power. The Hartge badge on the trunk clearly not making it up for it.

      Furthermore, the 441 wheel number for a stroker M3 came from an RDsport setup, not Dinan. Dinan uses a fairly mild tune and has yet to demonstrate as high of dyno numbers with their motor. To really take advantage of this setup the M3 owner needs to ditch the wheels, get a new tune, and also look into Schrick cams as the stroker moves the peak of the powerband to the left. Much more horsepower is there to be had by moving the torque curve to the right towards redline with a more aggressive profile similar to how this Z06 gains power with its cam setup.

      Enjoy the race, but seems silly for the M3 owner to spend all that money on the motor only to limit it in other areas.

      This article was originally published in forum thread: Dinan 4.6 Stroker M3 vs C5 Z06 started by Sledgehammer View original post
      Comments 226 Comments
      1. Sledgehammer's Avatar
        Sledgehammer -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        We don't know what the HP is with the Dinan stroker it would have to be done. I can't speculate, I'd venture to guess it would be healthy.

        Dinan doesn't do cams because for one they were not available when this kit was designed and for two it would increase the cost both in hardware and in tuning. Same reason for RDsport.

        You can look at Schrick cam results on other M motors if you like.
        So basically their are no quantifiable results out there or published yet for the Schrick cams and S65 motor. Thats interesting...

        I've found a VAC stroker with the motor showing around 549 crank HP though the graph looks like crayons but whatever. But nothing at the wheels or for a stock S65 with either cam set installed and dyno'd
      1. LostMarine's Avatar
        LostMarine -
        I was going to say, at the time, the cams were not an option for dinan. also, dinan is never know to be more aggressive with going for hp. also, at the time, upper 3xx's and low 4xx N/A dynos were not ever seen. I dont think any progress was made to the strokers after it was released, as far as dinan goes

        I do know of ONE cammed s65, that out out over 4xx hp, but it was not stroked. In fact , there are no details of it anywhere that I can find other than a 60-130 run that claims cams added..
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Sledgehammer Click here to enlarge
        So basically their are no quantifiable results out there or published yet for the Schrick cams and S65 motor. Thats interesting...

        I've found a VAC stroker with the motor showing around 549 crank HP though the graph looks like crayons but whatever. But nothing at the wheels or for a stock S65 with either cam set installed and dyno'd
        VAC has used these cams already and uses Schrick cams in their builds. You can talk to them.

        As far as Schrick cams with strokers, you don't have a big sample size. Tuning VANOS with aftermarket cams is something few tuners have down.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        pper 3xx's and low 4xx N/A dynos were not ever seen
        Upper 3XX's were seen.
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Upper 3XX's were seen.
        i think 37-380 were seen, but few, if any over 390. so comparatively, 440ish was a good jump
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        i think 37-380 were seen, but few, if any over 390. so comparatively, 440ish was a good jump
        Yes, compratively, 440 was good. That wasn't with a good tune or cams though and simply through a header revision.