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  1. #1
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    4 out of 4 members liked this post. Yes Reputation No

    Custom turbos being made by SJL Custom in Ontario, Canada

    Hi all,

    Well this time I think I have a shop that will complete the modifications on the N54 turbos.

    They are going to start machining this week and everything has been going really well.

    The pics that I am posting, you will notice a huge difference in both exhaust and compressor side.

    So they are hoping that they should have the prototype ready to go by the end of the month!

    But I am going to keep my fingers cross just the same.Click here to enlarge

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  2. #2
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    saw this on n54... great work, looks like its going to be promising
    JB4LIFE

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    This is what is also going on, from SJL Custom:
    They will be working on the wastegate solution this week. They have the engineering part done just need to start making the parts. The stock materials used are really cheap and soft, thus creating the result everyone encounters. As far as comparison to the RB turbos, SJL's they believe will create a little more additional power, approx 50hp more. My compressor wheel is a little more efficient as far as they can tell. Fit? everything will bolt up like stock.

    Future developments will include lightweight billet compressor wheels, Titanium Turbine wheels, and the possibility of ball bearing cartridges, all reducing the amount of turbo lag and spool up time. First they want to get these done and see what we get as far as dyno and performance numbers.

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    50 hp more than RB turbos (which still haven't been maxed out) with a little more efficient compressor wheel? LOL

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    Click here to enlarge Originally Posted by lonely335 Click here to enlarge
    50 hp more than RB turbos (which still haven't been maxed out) with a little more efficient compressor wheel? LOL
    I apologize about the "50HP more" I should have not posted that until the turbos are put together and we have some dyno results. Sorry about that.

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    when i see projects like this even though the work is very impressive i question if its worth laying out the money vs just buying the rb turbo's and then spending everything else somewhere else under the hood

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    whats the stock inducer and exducer specs? And should just start with billet wheels I know a local shop in michigan that makes 59mm billet wheels those should work?

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    1 out of 1 members liked this post. Yes Reputation No
    This is from SJL Custom:

    "Farley may have misunderstood what I was trying to explain to him. Im not creating these to start a pissing match. The RB turbos are without a doubt a great upgrade that has been thoughtfully engineered. Im not here to knock them. Farley brought this project to me after I myself was looking for a turbo upgrade for this engine platform. I got in touch with Farley after I saw a post of him trying to find someone to build him a upgrade. He brought a set of used turbos to me to see what I could do. My setup is not a copy. I have been engineering my setup for the last 6 months. I have created many hybrid turbo upgrades for my clients including ones for the Nissan GTR, Porsche Turbo, Audi A4, and most recently the Bentley Continental GT just to name a few.

    The additional 50hp will come from non generic mitsubishi parts. We have the ability to create our own custom billet wheels. This is something we will be developing after we have tested our prototypes and have a baseline. We have CAD engineered the programs for this billet upgrade to be as efficient as possible, thus resulting in the additional power.

    Again, the RB turbos are a fantastic upgrade that has proved itself. Im not taking anything anyway from them."

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    Very nice!

    Sometimes I think about this: The stock compressor housing was desgined to work effiecently with the stock sized wheel, now you've added a larger wheel that can now move a larger volume of air, but through the same tiny compressor housing and piping....I wonder how these turbos would be with a propely matched compressor housing.....
    BMW Master Certified Tech - ///M Specialist & Diesel Specialist
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    alot better with a bigger hot side thats the flaw

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    From SJL Custom:

    "Our upgrade will install like stock. No additional modification to the stock location and plumbing necessary. Wastegate materials are made from 330 stainless steel. All components in these prototypes are MHI, (for now). I will keep my measurements under wraps until our dyno and performance testing."

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    I applaud the efforts, and if proven to be more powerful then it would be worth it. But i highly doubt this is going to be cost effective for anyone involved.

    Hopefully they provide at least another viable option, but as you can see, there are a few other "upgrades" out there, and none of them seem to be as capable as RB's, menaning not really upgrades.

    You have to remember, RB's are just now hitting the streets 2 yrs later...

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    U
    Click here to enlarge Originally Posted by DLV-Engineering Click here to enlarge
    Very nice!

    Sometimes I think about this: The stock compressor housing was desgined to work effiecently with the stock sized wheel, now you've added a larger wheel that can now move a larger volume of air, but through the same tiny compressor housing and piping....I wonder how these turbos would be with a propely matched compressor housing.....
    +1000 what he said.

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    Exactly, it has a limit and I've always said it's going to be tapped out around 550rwhp.

    Click here to enlarge Originally Posted by 600whp S4 Click here to enlarge
    alot better with a bigger hot side thats the flaw
    I just bumped into this thread and happy to see some realize you can only squeeze so much out of a housing. I just posted this on N54tech this morning:
    I personally dont believe any gain possible over RBs as long as the stock housings are utilized. The RBs will flow well than enough more to maximize the housing itself, which will be at the housings limits before the wheel limits come into play.

    Although I would not say this is a copy as was suggested above, I do also want to say that you do not need a set of turbos in your hand to take a concept from as pictures will work fine. farbmw has been a subscribed member to my thread for many moons, and pictures have been posted for nearing 2 years at this point. But I am also not saying thats what is being done here either, that would be a little presumptuous. I would say that great minds think alike.

    One more thing. We all could throw more elite and expensive components in the mix (ie. billet compressor wheels, ti turbines, ball bearings, etc) but ultimately that affects the bottom line and expense to the customer with very little if any benefit in HP (in this application) vs. the dollar spent (ie. mainly due to turbine housing limitations). Ultimately I came to the conclusion that the masses would want to spend less than $3k for a full upgrade including a wastegate overhaul, and that is very difficult thing to do with the level of components/materials/fab work/and machine time that has to be done.

  15. #15
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    Click here to enlargeClick here to enlargeClick here to enlarge
    [SIGPIC][/SIGPIC]

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    Click here to enlarge Originally Posted by Rob@RBTurbo Click here to enlarge
    Exactly, it has a limit and I've always said it's going to be tapped out around 550rwhp.



    I just bumped into this thread and happy to see some realize you can only squeeze so much out of a housing. I just posted this on N54tech this morning:
    I personally dont believe any gain possible over RBs as long as the stock housings are utilized. The RBs will flow well than enough more to maximize the housing itself, which will be at the housings limits before the wheel limits come into play.

    Although I would not say this is a copy as was suggested above, I do also want to say that you do not need a set of turbos in your hand to take a concept from as pictures will work fine. farbmw has been a subscribed member to my thread for many moons, and pictures have been posted for nearing 2 years at this point. But I am also not saying thats what is being done here either, that would be a little presumptuous. I would say that great minds think alike.

    One more thing. We all could throw more elite and expensive components in the mix (ie. billet compressor wheels, ti turbines, ball bearings, etc) but ultimately that affects the bottom line and expense to the customer with very little if any benefit in HP (in this application) vs. the dollar spent (ie. mainly due to turbine housing limitations). Ultimately I came to the conclusion that the masses would want to spend less than $3k for a full upgrade including a wastegate overhaul, and that is very difficult thing to do with the level of components/materials/fab work/and machine time that has to be done.

    Agreed.

    I don’t think bigger gains will be achieved w/o changing the housing. Some people want to keep it concealed for warranty proposes but I don’t get it. Why I should spend that kind of money to upgrade the power and then hide it due to warranty issues?? And limit the potential of UPGRADED turbos??

    Let say you blow the engine, the will rip that engine apart. They will find it the moded turbos. Also how you will explain a broken rod/piston/ring land? I mean they are not stupid. I would hardly believe you could pass it as warranty.

    As for HPFP/Injectors then, yes. Probably they will never look over there.

    But don’t live in fear. Eventually the warranty will expire and you don’t have to hide in the closet anymore. LOL

  17. #17
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    know the prices??

    and availability of these turbos?

    some form of contact??
    [SIGPIC][/SIGPIC]

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    Click here to enlarge Originally Posted by carcars Click here to enlarge
    know the prices??

    and availability of these turbos?

    some form of contact??
    We are hoping to have the Dyno #'s and everything else by the end or beginning of the month, and I will post it ASAP.Click here to enlarge

  19. #19
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    OP Edited to insert attachments inline so they resize.

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

  20. #20
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    OP Edited to insert attachments inline so they resize.
    I am unable to edit:

    "Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system."

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    Click here to enlarge Originally Posted by farbmw Click here to enlarge
    I am unable to edit:

    "Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system."
    That's odd, you should have the ability to edit the first post, not any of the others.

    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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