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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. Sticky's Avatar
        Sticky -
        Man am I jealous of this. Part of me wants to go to a 4.4 liter now. Definitely want the dry sump as well.

        @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.

        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?

        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.

        Freaking sick build guys, major props.
      1. Autobahn335i's Avatar
        Autobahn335i -
        @Sticky : How will your build stack up against this? Just curious.
      1. LostMarine's Avatar
        LostMarine -
        This is sure to hush up some formerly very vocal people Click here to enlarge
      1. Mr.Squeeze's Avatar
        Mr.Squeeze -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        This is sure to hush up some formerly very vocal people Click here to enlarge
        I will have a up close and personal picture of this as promised today LostMarineClick here to enlarge
      1. Eric335's Avatar
        Eric335 -
        Thats insane. Very well done
      1. Torgus's Avatar
        Torgus -
        "bottom end good for well over 700 horsepower" Will the blower be able to push 700hp? Dry sump ftw. Looks like a bad ass engine.
      1. flipm3's Avatar
        flipm3 -
        Wow...insane!

        I would love to have two of these. One for the living room and for the E90 M3....haha

        Hopefully they get this motor in a car, dyno'd, and spitting our crazy numbers on the track.
      1. TZ04XJR's Avatar
        TZ04XJR -
        Click here to enlarge Originally Posted by flipm3 Click here to enlarge
        Wow...insane!

        I would love to have two of these. One for the living room and for the E90 M3....haha

        Hopefully they get this motor in a car, dyno'd, and spitting our crazy numbers on the track.
        Seriously I could admire it all day! I have a meeting and should be getting ready to leave right now, yet hear I am just staring and drooling over this thing. Haha

        Sigh.. With every day that passes the more I feel a S/C E92 M3 DCT is in my future Click here to enlarge
      1. Andrew@activeautowerke's Avatar
        Andrew@activeautowerke -
        Dry Sump Click here to enlarge
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by TZ04XJR Click here to enlarge
        Sigh.. With every day that passes the more I feel a S/C E92 M3 DCT is in my future
        i was gonna say it will take getting used to go from a sedan to coupe, then i remembered they made the e90 M, and its badass. (AK's) and so you can have the best of both Click here to enlarge
      1. Trojan4evr's Avatar
        Trojan4evr -
        There's a Jizz party in my pants...Click here to enlarge This is seriously impressive.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Autobahn335i Click here to enlarge
        @Sticky : How will your build stack up against this? Just curious.
        I have the stock stroke and no dry sump. I'll add a dry sump soon enough. If I re-do the stroke I'd probably do a billet block as well. I'll only explore this if I can fit a much larger blower but first I just want what I have currently done and to enjoy it for a bit .

        My build will provide more power than this but will be more peaky.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Torgus Click here to enlarge
        "bottom end good for well over 700 horsepower" Will the blower be able to push 700hp? Dry sump ftw. Looks like a bad ass engine.
        600 wheel can be done on the stock internals and blower so 700+ is child's play with this even with the same blower.
      1. MisterEm's Avatar
        MisterEm -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        first I just want what I have currently done and to enjoy it for a bit .
        When is the suggested ETA?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by MisterEm Click here to enlarge
        When is the suggested ETA?
        Anytime I say a date something happens a the last minute pushing it back. I'd expect 6 weeks. I don't know how much longer I can take this.
      1. TZ04XJR's Avatar
        TZ04XJR -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Anytime I say a date something happens a the last minute pushing it back. I'd expect 6 weeks. I don't know how much longer I can take this.
        You and me both.. I can't go an hour without somebody asking where my ride is.. Next week always turns to next week. Just got the message saying next Wednesday. Oh well ill just keep rockin the loaner 5 series and saving tons on gas.
      1. TZ04XJR's Avatar
        TZ04XJR -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        i was gonna say it will take getting used to go from a sedan to coupe, then i remembered they made the e90 M, and its badass. (AK's) and so you can have the best of both Click here to enlarge
        I like the looks of the sedan, but damn the coupe is sexy! I'm not sure what I'll do, but the S85 w/ DCT is certainly an option.
      1. benzy89's Avatar
        benzy89 -
        Attachment 22666

        Cannot wait to see this thing tear up the streets in Philly
      1. Mr.Squeeze's Avatar
        Mr.Squeeze -
        Click here to enlarge Originally Posted by Mr.Squeeze Click here to enlarge
        I will have a up close and personal picture of this as promised today LostMarineClick here to enlarge
        As promised for @LostMarine I went by VAC and looked at this 700 crank HP motor and took some pictures for you.

        Click here to enlarge

        Click here to enlarge


        On a serious note @Sticky I was told that the Dry sump the oil would have to be in the trunk no room. This car has Cams in it also I think it would be nice to see a YSI on it instead of the SI blower that it has now.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mr.Squeeze Click here to enlarge
        On a serious note @Sticky I was told that the Dry sump the oil would have to be in the trunk no room. This car has Cams in it also I think it would be nice to see a YSI on it instead of the SI blower that it has now.
        In the trunk is fine with me.

        Cams also? You sure?