Close

    • PAW Motorsport offers N54 ported/polished cylinder head upgrade - $3995

      PAW Motorsport is offering a cylinder head upgrade for N54 based BMW vehicles. There is a substantial gain in port flow velocity without a sacrifice in low lift situations. Flowbench charts show an increase of about 35% with gains from 161 cfm to 227 cfm. Both intake and exhaust ports have been ported and polished along with modified intake and exhaust valves. The claimed power gains with the head alone are in the 40 hp range. Charts and pictures are below.

      Expect before and after results on a PAW DCT N54 project car in the next few weeks. For those interested in this upgrade there is a core charge in the $2800 range which obviously is refunded when the core is received.














      Further Details:








      Charts and Data:








      This article was originally published in forum thread: PAW offers N54 ported cylinder head upgrade - $3995 started by Sticky View original post
      Comments 325 Comments
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by mazdaspeed6 Click here to enlarge
        Hey matt if your looking for a tester I'm only an hr and a half away Click here to enlarge
        We will talk when the time comes. I would like to see what the before and after really is. Maybe have you go to EPL for a before run, come down and get the head put on and go back to them for another run.
      1. DLV-Engineering's Avatar
        DLV-Engineering -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Exactly, they have some big plans in the works for multiple platforms.
        Yup, Lenny(M54B25) has been tuning BMW/Mini since about 2006-07 and other vehicles even longer and was always traveling to other countries to tune race cars. Seems to have a good background.
      1. Eleventeen's Avatar
        Eleventeen -
        The increase on the intake side is pretty impressive, but 4 grand for one head is ridiculous. BMW or not, they aren't doing anything new here. If they included cams, then okay; but they don't.
      1. DBFIU's Avatar
        DBFIU -
        Well look at the volume, its low. This isnt an S50 head port job and valve cut for 900 bucks. There are not that many N54 owenrs who are going to risk being the first ones to get this mod. Hence why they need to sell them at a premium, after all they are also taking the risk by entering a small volume market. This is how business works.

        I would have to say that I disagree that this head wouldnt benefit the stock turbos, I think all else being the same, youll pick up 20 whp at least just from this head upgrade on stock turbos and bolt ons.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        Well look at the volume, its low. This isnt an S50 head port job and valve cut for 900 bucks. There are not that many N54 owenrs who are going to risk being the first ones to get this mod. Hence why they need to sell them at a premium, after all they are also taking the risk by entering a small volume market. This is how business works.

        I would have to say that I disagree that this head wouldnt benefit the stock turbos, I think all else being the same, youll pick up 20 whp at least just from this head upgrade on stock turbos and bolt ons.
        This. And even spool time would be reduced possibly.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
        This. And even spool time would be reduced possibly.
        It should reduce spool time as you are making the motor more efficient although it seems the flow gains really come at higher rpm's.

        And yes, DBFIU is right on but try explaining that to people who want things for free.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        They said they use their own custom made inconel exhaust valves. Usually BMW made them sodium filled stainless steel, but inconel is not a cheap metal to work with. I could easily see $100 a valve, plus new seals. 24 seals plus new exhaust valves is at least 1300 bucks.

        Upgrade valves for my ancient e28 are almost 80 a pop. If I built the head it would be over 1000 bucks and not even include the cam. And that's just parts...not including the labor by the machine shop.
      1. jaza45's Avatar
        jaza45 -
        I've personally seen this head and dyno charts and it shows gains of around 40hp, they are also have from what I've seen the best N55 tune out there.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by jaza45 Click here to enlarge
        I've personally seen this head and dyno charts and it shows gains of around 40hp, they are also have from what I've seen the best N55 tune out there.
        Funny you mention that, we will be putting up info on the N55 tune soon as well Click here to enlarge
      1. mazdaspeed6's Avatar
        mazdaspeed6 -
        Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
        We will talk when the time comes. I would like to see what the before and after really is. Maybe have you go to EPL for a before run, come down and get the head put on and go back to them for another run.
        Sounds good, I'm double checking all my connections Saturday I have a small exhaust leak.. As soon as that's squared up I'm looking to dyno
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
        Yeah my apologies on that one. I wasnt trying to group everyone in on that comment but i think the people who actually invest the time and money into their cars would see where im coming from and know they arent included in it. But thank you for clearing it up.

        Sorry just ranting a bit. Had several customers call me today and try to get me to go down in price on work, or say 'xyz shop has them for this much, and they are charging me abc to do it'. One customer doesnt bother me but when you get 4-5 people in a row it gets a bit annoying. Still working on the customer relations end of things.


        Back on topic, carry on Click here to enlarge
        Days of $850 DPs and $2000+ exhausts for N54s are numbered thats for sure Click here to enlarge thank the online community for that and forums such as this one or any other enthusiast forum for bringing knowledge of "worth" to the dudes who're paying cash for work on their cars...paying for labour though is a different thing and personally don't mind paying a bit extra when I know work will be done with good quality...but if you can get a deal on something why not? I'm sure you look for deals when you're spending money right? Ease up a bit and understand that you're on the receiving end of this game and maybe you need to open up a few more shops so you can reduce labour costs a bit by raising volume

        I think this cylinder head is a great upgrade, probably a bit on the expensive end...it'll cost probably around another 1200-1500 to be put in...so ~$6000 for a cylinder upgrade definitely isn't negligible or for your average impulse buyer out there...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Ease up a bit and understand that you're on the receiving end of this game and maybe you need to open up a few more shops so you can reduce labour costs a bit by raising volume
        Keyboard economics.
      1. DBFIU's Avatar
        DBFIU -
        You are all wrong.

        Rule number 1 in business, an item or service is worth whatever someone is willing to pay for it. Buying and selling is a completely subjective transaction; enough with trying to label the worth of items. Thats the price, people can either pay for it or not; thats why we live in america; kthx bai
      1. klipseracer's Avatar
        klipseracer -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        You are all wrong.

        Rule number 1 in business, an item or service is worth whatever someone is willing to pay for it. Buying and selling is a completely subjective transaction; enough with trying to label the worth of items. Thats the price, people can either pay for it or not; thats why we live in america; kthx bai

        +1.

        Value is subjective.... I mean what is the value of your Redbull?... No really what is the value?
      1. DBFIU's Avatar
        DBFIU -
        Attachment 4913
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Days of $850 DPs and $2000+ exhausts for N54s are numbered thats for sure Click here to enlarge thank the online community for that and forums such as this one or any other enthusiast forum for bringing knowledge of "worth" to the dudes who're paying cash for work on their cars...paying for labour though is a different thing and personally don't mind paying a bit extra when I know work will be done with good quality...but if you can get a deal on something why not? I'm sure you look for deals when you're spending money right? Ease up a bit and understand that you're on the receiving end of this game and maybe you need to open up a few more shops so you can reduce labour costs a bit by raising volume

        I think this cylinder head is a great upgrade, probably a bit on the expensive end...it'll cost probably around another 1200-1500 to be put in...so ~$6000 for a cylinder upgrade definitely isn't negligible or for your average impulse buyer out there...
        .


        So i like buying ebay downpipes and knockoff exhaust systems for my BMW? This is the typical mindset of every person I have come across these days...why spend money on quality parts built here? I'll just pay some guy in Taiwan who makes $#@! ebay downpipes or exhaust that kinda doesnt fit right, but whatever, as long as I didnt spend 2k on an exhaust that would fit perfect.

        I need to move my demographic to people 30 and up....they understand what it takes to make a quality part and will pay for it. And they are usually keeping their car for the long run, not leasing it and putting cheapo parts on it just to get some speed kicks out of it for a little before they return it.


        Open more shops? If I had more work to do and I was overloaded then yes, but around here theres a shop on every corner. Makes no sense to. This isnt a chain repair shop, we specialize in a few certain things and the market demand is not enough to expand the shop to more than one location. Plus trying to find good employees these days sucks. Everyone wants to get paid for nothing or slack off immensely when they can.

        If these guys churned out 20-30 heads ready to go, then yea maybe the price would be less but as a small niche company prices are going to be expensive due to low demand. If YOU had that kind of money to layout, would you do it and then hope that you can sell all 20-30 heads before another company jumps in and cuts all the profit out because they are copying you, and not spending any money in R&D?
      1. n54BoostOnCoke's Avatar
        n54BoostOnCoke -
        + 1000 , What Matt doesn't see is that same brand will sell an exhaust for Evo for 800 and 1300 for 335 , BMW tax is there and you can not deny it.
      1. n54BoostOnCoke's Avatar
        n54BoostOnCoke -
        However PAW is going to change the game on n54, I think I want to keep my car and build it =]
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by n54BoostOnCoke Click here to enlarge
        + 1000 , What Matt doesn't see is that same brand will sell an exhaust for Evo for 800 and 1300 for 335 , BMW tax is there and you can not deny it.
        So when an evo uses one exhaust pipe and a BMW uses 2, another muffler and resonator, it's going to sell for the same price? Using more mAterials but taking that profit out of my pocket....suree great way to run a business.

        An evo exhaust consists of a long straight pipe, one bend and a muffler. And they sell that $#@! for 600 bucks.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
        So when an evo uses one exhaust pipe and a BMW uses 2, another muffler and resonator, it's going to sell for the same price? Using more mAterials but taking that profit out of my pocket....suree great way to run a business.
        Don't forget smaller market with less developers for the N54...