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    • VAC Motorsports creates a 700+ horsepower VF-Engineering supercharged stroker 4.4 liter E9X M3 S65 V8 with a billet dry sump oil system

      Now this is a serious build that gets tremendous nod of approval from BimmerBoost. VAC built an S65 V8 out of an E9X M3 with forged internals including low compression pistons with increased stroke from new rods an a 4.4 liter crank. The end result is a bottom end good for well over 700 horsepower with forced induction as seen pictured below with the VF-Engineering Vortech based centrifugal supercharger kit.

      Not only is the motor built, stroked, and supercharged VAC also gave it a billet dry sump system. Some people believe the stock S65 V8 oiling system is up to par but tuners in the know who have disassembled these motors seem to agree on premature bearing wear which the oiling system likely is contributing too. Whether one believe the stock oiling system is up to par or not the billet dry sump system here is definitely a large improvement over the stock system and certainly offers a bit of peace of mind.

      Very nice work here by VAC and hopefully they can provide more info on how the dry sump system gets along with supercharged S65 V8 applications and if there is any need to worry about extra stress on the crank. This is definitely one of the baddest S65 V8 forced induction builds out there, great job VAC and give us a dyno shoot as soon as you can.

      This article was originally published in forum thread: VAC Motorsports creates a 700+ horsepower VF-Engineering supercharged stroker 4.4 liter E9X M3 S65 V8 with a billet dry sump oil system started by Sticky View original post
      Comments 59 Comments
      1. Mr.Squeeze's Avatar
        Mr.Squeeze -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        In the trunk is fine with me.

        Cams also? You sure?
        100 percent sure that's what I was told when I ask how much it cost to built the motor.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mr.Squeeze Click here to enlarge
        100 percent sure that's what I was told when I ask how much it cost to built the motor.
        What price did they quote?

        They have to be running Schrick cams just wondering which ones and how they are with boost as they seemed to be designed with a naturally aspirated application in mind.
      1. Mr.Squeeze's Avatar
        Mr.Squeeze -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        What price did they quote?

        They have to be running Schrick cams just wondering which ones and how they are with boost as they seemed to be designed with a naturally aspirated application in mind.

        40k + to build that same set up without the blower.

        Some money can be saved by not using the cams and dry sump.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mr.Squeeze Click here to enlarge
        40k + to build that same set up without the blower.
        That's way on the high side, not sure what is accounting for that $40k. Should be $40k with the blower and dry sump all installed.

        Click here to enlarge Originally Posted by Mr.Squeeze Click here to enlarge
        Some money can be saved by not using the cams and dry sump.
        Naturally, also with using the stock crank. But what fun is that?
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Naturally, also with using the stock crank. But what fun is that?
        Are you sure it's the stock crank??? This is back from 8/31:
        Click here to enlarge Originally Posted by Mike@VAC Click here to enlarge
        Hey guys, we are wrapping up another stroker and I managed to snap some pics this time Click here to enlarge We should be setting it up on the engine dyno in the next few weeks....there will be a vid. More soon!

        Specs:
        _VAC 4.4 stroker kit
        -VAC crank
        -CP pistons
        -Carrillo rods

        _Darton flanged sleeves
        _ARP hardware
        _billet dry sump oil system

        _VAC Stage 3 cylinder heads
        -Schrick camshafts
        -Schrick valvetrain

        _some custom bits
        _More info soon!

        http://www.germanboost.com/images/im...kmaster2-2.jpg

        http://www.germanboost.com/images/im...hmaster1-1.jpg

        http://www.PorscheBoost.com/images/i...5schrick-1.jpg

        http://www.germanboost.com/images/im...kercrank-1.jpg
      1. leo985i's Avatar
        leo985i -
        Amazing built!
      1. The Ghost's Avatar
        The Ghost -
        Click here to enlarge Originally Posted by Mr.Squeeze Click here to enlarge
        40k + to build that same set up without the blower.

        Some money can be saved by not using the cams and dry sump.
        That would be ridiculous for the power. That'd be the clue to move to another platform.
      1. MrClean335i's Avatar
        MrClean335i -
        Click here to enlarge Originally Posted by The Ghost Click here to enlarge
        That would be ridiculous for the power. That'd be the clue to move to another platform.

        GTR
      1. mkodama's Avatar
        mkodama -
        Where's the dyno!!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Are you sure it's the stock crank??? This is back from 8/31:
        It can't be the stock crank, it's a 4.4 liter. The comment was in reference of ways to keep a builds costs not referring to this particular build.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by MrClean335i Click here to enlarge
        GTR
        Taking the GTR to high HP levels isn't cheap either. Especially once building the motor, trans, etc.
      1. Bimmer182's Avatar
        Bimmer182 -
        This thing is insane! Definitely nice to own one.Click here to enlarge
      1. benzy89's Avatar
        benzy89 -
        This motor is just begging to be fed some DCTs
      1. Mike@VAC's Avatar
        Mike@VAC -
        @benzy89: that other post is a different engine.

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        @Mike@VAC tell me how much the dry sump system would run and if there is any need to worry about extra stress with a supercharged application.
        $6800 for billet dry sump kit that utilizes an amazing Dailey 5 stage pump.

        For a 4.4 liter I would need new rods but I could use my same pistons. Would need the crank as well. How much a difference do you feel the extra displacement makes? Why not go more aggressive than 4.4 liters?
        We wanted to stick with the GTS theme. Others have more aggressive options, we chose this one since most of our clients would prefer the 4.4 over 4.6. We stock the 4.4 units.

        Also how strong do you feel the block is? This is sleeved? Do you feel flex is an issue? How much HP do you think the block can support even when sleeved? The bore spacing is pretty tight even with the stock bore.
        Yep, sleeved. We haven't even thought about pushing the limits of the engine yet, but we have sleeved S62s making over 1k hp with no issues.

        Freaking sick build guys, major props.
        Thanks man, wait till I get a video together of the n/a 4.4 ;-)
      1. Mike@VAC's Avatar
        Mike@VAC -
        Oh, peep this one ;-) (installs in stock housing) **I know, I know, our car is a DCT**

        Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mike@VAC Click here to enlarge
        $6800 for billet dry sump kit that utilizes an amazing Dailey 5 stage pump.
        And this is perfect for supercharged applications? Ugh this build of mine isn't cheap but I'm going to need this.

        Click here to enlarge Originally Posted by Mike@VAC Click here to enlarge
        We wanted to stick with the GTS theme. Others have more aggressive options, we chose this one since most of our clients would prefer the 4.4 over 4.6. We stock the 4.4 units.
        I figured, that makes sense. Plus you know the stroke/rod ratio is correct as BMW chose it themselves. An extra 400cc's would be nice. If I do it down the line I'll get the crank and rods from you guys.

        Click here to enlarge Originally Posted by Mike@VAC Click here to enlarge
        Yep, sleeved. We haven't even thought about pushing the limits of the engine yet
        I have Click here to enlarge I intend to take it to the damn maximum.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mike@VAC Click here to enlarge
        Oh, peep this one ;-) (installs in stock housing) **I know, I know, our car is a DCT**

        http://i1184.photobucket.com/albums/.../s65dogbox.jpg
        Sick, this should go in its own separate thread.
      1. PEI330Ci's Avatar
        PEI330Ci -
        Click here to enlarge Originally Posted by Mike@VAC Click here to enlarge
        $6800 for billet dry sump kit that utilizes an amazing Dailey 5 stage pump.
        To be fair to those that have never gone this route, there are still additional costs involved to complete the install.


        • Oil tank + Breather system
        • Fabrication in trunk to mount oil tank (Usually requires moving the battery, and cutting out the floor of the trunk)
        • 30+ feet of -12 AN line
        • Oil filtration
        • -12 fittings for oil lines
        • Bulkhead fittings for running the lines through trunk floor


        Then there's the fun of 15-20 quart oil changes...but the good news is that you'll find the engine makes more power and you can run a TON of ring gap to make monster power.
      1. Mike@VAC's Avatar
        Mike@VAC -
        Sticky and I have had this discussion before (you too, I think?) and I clearly advised against it for any car that will see the street. I do know people who have street legal cars with DSK and it's pretty foolish IMO - BUT it's their choice Click here to enlarge

        Click here to enlarge Originally Posted by PEI330Ci Click here to enlarge
        To be fair to those that have never gone this route, there are still additional costs involved to complete the install.


        • Oil tank + Breather system
        • Fabrication in trunk to mount oil tank (Usually requires moving the battery, and cutting out the floor of the trunk)
        • 30+ feet of -12 AN line
        • Oil filtration
        • -12 fittings for oil lines
        • Bulkhead fittings for running the lines through trunk floor


        Then there's the fun of 15-20 quart oil changes...but the good news is that you'll find the engine makes more power and you can run a TON of ring gap to make monster power.
      1. Mike@VAC's Avatar
        Mike@VAC -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        And this is perfect for supercharged applications? Ugh this build of mine isn't cheap but I'm going to need this.
        It's perfect for a road circuit car.

        I figured, that makes sense. Plus you know the stroke/rod ratio is correct as BMW chose it themselves. An extra 400cc's would be nice. If I do it down the line I'll get the crank and rods from you guys.
        Cool :-)

        I have Click here to enlarge I intend to take it to the damn maximum.
        Until we smoke the S65 in our white car, I doubt anything will happen here. We are going to start a project on our E90 M3 soon - that will make a lot more torque (esp down low Click here to enlarge than we are used to seeing Click here to enlarge