Making Billet Aluminum Transmission Adapters - E55 Manual Swap Part 1

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ความคิดเห็น • 331

  • @ahamedkhan232
    @ahamedkhan232 3 ปีที่แล้ว +185

    engraving all the info on the plates themselves is so big brain.

    • @kiwihame
      @kiwihame 3 ปีที่แล้ว +7

      It's the little things. =D

  • @eformance
    @eformance 3 ปีที่แล้ว +40

    I have a couple suggestions about the plates (when I had a shop, I machined > 75 different plates for different makes for a customer): You have a good start with the 2 hold-down bolts in the center. I also recommend that you drill hold-down holes for the drops in a pre-cycle, then bolt down the drops. Then machine the dowel pins and outside profiles. Bolt the plate down by several of the holes, then do the inside profiling. This constrains all of the pieces and prevents wasting carbide endmills when the drops kick out. You can just put optional stops for each of the pauses. I suggest machining the dowel pin patterns into the sub-plate so you can flip the plate over on the dowels and have it exactly centered for the 2nd op. You can follow this pattern for both pieces. I would suggest a live tooled lathe as your next machinery purchase :-). When I did the hubs, I did all turning on a lathe (did both manual and later CNC), then 2nd op the holes and tapping on a Mill. I think it will be tough to maintain very tight tolerances doing the hub machining in the mill on a cheap 3 jaw chuck. Obviously the 1st op doesn't matter, but accurately chucking the 2nd op can be challenging. You might consider machining a fixture to accurately locate and support the 2nd op of the hub, then you'll know center and the face will be perpendicular to the spindle.

  • @Gizawar
    @Gizawar 3 ปีที่แล้ว +152

    Maybe now Tavarish will manual swap his SL55

    • @AbdulrahmanHadid
      @AbdulrahmanHadid 3 ปีที่แล้ว +2

      Same thought

    • @georgobergfell
      @georgobergfell 3 ปีที่แล้ว +1

      Haha, I thought the same as well

    • @lukasmeyer1992
      @lukasmeyer1992 3 ปีที่แล้ว +20

      I am already waiting for this moment for so long. I dont watch his videos anymore, just check every now and then if the SL is already swapped.

    • @gianfrancoa
      @gianfrancoa 3 ปีที่แล้ว +6

      Hahaj I was going to write the same. The only difference is that Tavarish has no idea on how to do it, ad this guys it does.
      Tavarish had has thi project on the shelf for 3 years.

    • @gianfrancoa
      @gianfrancoa 3 ปีที่แล้ว +21

      That's the difference between doers and talkers

  • @FixItRyan
    @FixItRyan 3 ปีที่แล้ว +24

    Imagine driving one of those into the Mercedes dealership!

    • @finlay230
      @finlay230 3 ปีที่แล้ว +2

      Ryan N priceless !😁

  • @eformance
    @eformance 3 ปีที่แล้ว +11

    For through holes I recommend you get some spiral point taps, for blind I recommend you get some "CNC" or Spiral flute taps. That plain tap is the most likely to get clogged and wipe out the threads or break.

  • @vijayvjn6874
    @vijayvjn6874 3 ปีที่แล้ว +18

    this was very well documented as always, can't wait for the next one

  • @nickgeorgiakakis7249
    @nickgeorgiakakis7249 3 ปีที่แล้ว +2

    Excellent!
    You're onto a winner here. Really like the engraving of the specs on the adaptors.

  • @longboarderebright
    @longboarderebright 3 ปีที่แล้ว +13

    its amazing to of found your channel with the orange car you built years ago because i was looking for diy mini race cars! and then i got to see the track car get built, now your in a shop! thanks for the inspiration keep fabbing!

  • @akenthusiast101
    @akenthusiast101 3 ปีที่แล้ว

    I have been watching your channel now since the beginning and i am amazed at the knowledge and technical info you possess. Keep them coming.

  • @davidfrom313
    @davidfrom313 3 ปีที่แล้ว

    Man you are truly a great person, you develop a much wanted part and then you don't sell it until you can offer it at the best price. Keep it up man. Thanks!

  • @SergejKolmogorov
    @SergejKolmogorov 3 ปีที่แล้ว +2

    I have some manufacturing advise for you. You transport the whole power over the bolts that hold small adapters inside the transmission. If you make more edges on adapters themselves, that they fit in each other, those adapters would transport the power also and make the life of bolts easyer.

    • @quickvictor
      @quickvictor 3 ปีที่แล้ว

      Makes sense 👍

  • @KarelBeelaertsvanBlokland
    @KarelBeelaertsvanBlokland 3 ปีที่แล้ว

    Love your work and attention for detail! Well done. Keep on the good AMG work!

  • @kiwihame
    @kiwihame 3 ปีที่แล้ว

    LOVE your work! Just awesome. And the little 'attention to detail' touches are just the icing in the cake. Deeply impressive. Now off to find an E/SL55.

  • @Moolaz
    @Moolaz 3 ปีที่แล้ว +1

    Great job. These look like they are proper quality.

  • @longboarderebright
    @longboarderebright 3 ปีที่แล้ว +3

    i like how you turned the drive shaft instead of from the engine side it looks great!

  • @cecilcompagnon595
    @cecilcompagnon595 3 ปีที่แล้ว

    Beautiful work, skillfully done. Awesome!

  • @regee90
    @regee90 3 ปีที่แล้ว

    Cant wait to buy this kit. Much love from the UK.

  • @sawmebabe
    @sawmebabe 3 ปีที่แล้ว

    Beautiful just beautiful. I look forward to the day I'm able to make my own parts. Lovely content.

  • @adamhamilton8242
    @adamhamilton8242 2 ปีที่แล้ว +1

    This is amazing work! The amount of thought put into this project is astonishing. I eventually want a W211 E63 estate which I’m planning on manual-swapping

  • @gafrers
    @gafrers 3 ปีที่แล้ว

    Wonderful job, great attention to details and precision.
    Love the engraved torque specs

  • @greddy3949
    @greddy3949 3 ปีที่แล้ว +1

    Cant wait to see the vid for the M156 Manual trans swap🙌🏻👍🏼

  • @Doan84
    @Doan84 3 ปีที่แล้ว

    awesome that you engraved all the info on the parts themselves!

  • @endeavour2127
    @endeavour2127 3 ปีที่แล้ว

    Great content, looking forward to part 2!!!

  • @lukep6017
    @lukep6017 3 ปีที่แล้ว +1

    Great job for creating this video. Excellent job

  • @Gatsu3D2A
    @Gatsu3D2A 3 ปีที่แล้ว +2

    I need this! I spread the word on the amg groups. Lots of interest in this.

  • @jdantigua1999
    @jdantigua1999 3 ปีที่แล้ว

    Tavarish youtuber out of Florida will buy one for sure.
    Great video and you are making technology work for us simple mercedes pesants.

  • @1uzfe
    @1uzfe 3 ปีที่แล้ว

    I have to do this to my 1uzfe. Its exciting because I’m studying everything that you showed in this video 😁 I cant wait to implement my ideas on my car

  • @NorVack
    @NorVack 3 ปีที่แล้ว

    Thank you for this, definitely something ill be doing in the future to my s55 !

  • @Emangia
    @Emangia 3 ปีที่แล้ว

    Damn, that looks pretty professional, excellent job!

  • @slvr1.618
    @slvr1.618 3 ปีที่แล้ว

    You just made an engineers wet dream a reality!and Karen is a most welcomed addition to channel,keep up the great work.

  • @kk.7177
    @kk.7177 3 ปีที่แล้ว

    So cool to see you two working together ;)

  • @LyonScapeStudios
    @LyonScapeStudios 3 ปีที่แล้ว

    Awesome work, loving the builds, I really hope you turn the feeds and speeds up on that mill! Let er eat!

  • @MrSnowford
    @MrSnowford 3 ปีที่แล้ว

    Haven't been this excited since I got my CLS55. A manual swap has been a dream of mine someday.......now it looks like it may come true. Can't wait to see ho things progress.

  • @trentdawg2832
    @trentdawg2832 3 ปีที่แล้ว

    Dude, you are an automotive genius, I need one of these for my cls550

  • @vitor900000
    @vitor900000 3 ปีที่แล้ว +12

    Yo! When are you going to get back on the E55 ASL project? Its almost 6 months since the last time you did any progress on it D: I miss it...

  • @gianfrancoa
    @gianfrancoa 3 ปีที่แล้ว +4

    That CNC is impressive and even more impressive is the programming skills.

  • @nissansfinest3245
    @nissansfinest3245 3 ปีที่แล้ว

    This a great project of interest for me. Every since I started manual swapping my Charger SRT8, more and more people are popping up doing manual swaps on auto only cars. Im lookin forward to this finished product. I also think that there should be a gathering for us that are doing these swaps.

  • @suddendilemma5137
    @suddendilemma5137 3 ปีที่แล้ว

    Yes yes more of this yes!👏🏼👏🏼

  • @187g
    @187g 3 ปีที่แล้ว +3

    Nooo waaaay !! Finally ! a manual swapped mercedes 😍 get ready to swap a 6.3L s63 mercedes for me 😍😍

  • @BrianCrofoot
    @BrianCrofoot 3 ปีที่แล้ว +1

    Very interested in the kit. Can’t wait to see the build go in the car as I have an ‘05 E55 that I want to manual swap!
    Edit: I ordered my kit like 2-3 weeks ago! So stoked!!!

  • @hydorah
    @hydorah 3 ปีที่แล้ว

    Bloody brilliant mate! Hats off to you!

    • @hydorah
      @hydorah 3 ปีที่แล้ว

      I found this for you, maybe it will help :-)
      mbworld.org/forums/clk-class-w209/750479-2004-clk320-manual-transmission-swap.html

  • @turbomar6667
    @turbomar6667 3 ปีที่แล้ว +1

    Wishing you great success with your new business👍🇨🇦

  • @n.shiina8798
    @n.shiina8798 3 ปีที่แล้ว +1

    nice work. engraving torque spec is such a nice touch

  • @olegloginov6328
    @olegloginov6328 3 ปีที่แล้ว +26

    Consider one kit sold!
    As far as electronics, I believe there is an option for coding a manual transmission. It is located under Developer mode for DME in factory DAS software.

    • @BmwpetroldoorshoppingcarNordsc
      @BmwpetroldoorshoppingcarNordsc 3 ปีที่แล้ว +1

      Cool if this is true!!

    • @autospeed
      @autospeed 3 ปีที่แล้ว +2

      @@BmwpetroldoorshoppingcarNordsc I wouldn't be surprised, and I'm sure it's true. Merc offered manual transmissions on a lot of these cars for the EU market for many years. All of the Netherlands has Merc E-Class' as taxis.

    • @BmwpetroldoorshoppingcarNordsc
      @BmwpetroldoorshoppingcarNordsc 3 ปีที่แล้ว +1

      autospeed
      True, if I did this to my car I would want to use the standard factory engine management/mapping.

    • @chr1ssss
      @chr1ssss 3 ปีที่แล้ว

      Other m113 manual swaps I’ve seen just leave the existing shifter in park so that is an option too.

    • @srb2az141
      @srb2az141 3 ปีที่แล้ว

      Just use a crossfire trans m113/112 are the same bell housing

  • @sevenpaulperalta929
    @sevenpaulperalta929 9 หลายเดือนก่อน

    This is engineer level work, well done!

  • @grzegorzkolbrecki8344
    @grzegorzkolbrecki8344 3 ปีที่แล้ว

    Just perfect! Perfect project, perfect machine and perfect operator, good job Karen (and the talking guy)! I like the final touches, better than OEM. I'm almost sad that I don't have an automatic MB to convert ;)

  • @collinjohnson7723
    @collinjohnson7723 3 ปีที่แล้ว +4

    The only thing that makes me want to sell my E55 is the trans. The auto isn’t terrible but I miss 3 pedals. Can’t wait for the kit to be available!

  • @diyaarustom9940
    @diyaarustom9940 3 ปีที่แล้ว

    Great job dear, hopefully it will be later an adaptor kit for the M275 engine. Best of luck.

  • @kwbalance108
    @kwbalance108 3 ปีที่แล้ว

    SUBBED! Love this idea!

  • @reidcotten2720
    @reidcotten2720 3 ปีที่แล้ว

    You inspired me a year ago to build this same setup in my 99 clk430. Made my adapters just a little different and had the simpler bolt pattern to work with. I’d love to send you pictures and video if your interested. I’ve followed every step and wound up with an adapter set that I’ve drifted with for over a year now on the same clutch

  • @MikeMcDonoughUS
    @MikeMcDonoughUS 3 ปีที่แล้ว

    Great looking work! Makes me consider a Mercedes based project.

  • @toddtempleton9321
    @toddtempleton9321 3 ปีที่แล้ว

    keep up the good work buddy !!!,!!!

  • @Backyard_hunting
    @Backyard_hunting 3 ปีที่แล้ว +1

    Yes please thank you very much ! Email gone through 🙏🏼😬🥳 champion !

  • @markamd1
    @markamd1 3 ปีที่แล้ว

    HOW doeas this Cahnnel not have 1million subscribers??!! WOW!!! Amazing work brother, keep it up! Hello from Calgary! :)

  • @savostanivukovic9801
    @savostanivukovic9801 3 ปีที่แล้ว

    Absolutely awesome as usual! Well done sir! Would it be possible to provide flange bot style on 350Z transmission side?

  • @rlew12
    @rlew12 3 ปีที่แล้ว

    Awesome kit and development! Are you planning to do a transmission mount adapter or replacement cross-memeber/shifter linkage?

  • @bl00dh4nd4
    @bl00dh4nd4 3 ปีที่แล้ว

    Superb craftsmanship, keep it up

  • @epapa737
    @epapa737 3 ปีที่แล้ว

    I need this can't wait till it's released

  • @tomb375
    @tomb375 3 ปีที่แล้ว

    Amazing Job! Love that CNC machine. I would love a better designed Transmission Pan For the 722.9. Thank you hopefully you see this. Your an excellent designer engineer! Love all your videos and congratulations on your success, God Bless!

  • @valentinolim7144
    @valentinolim7144 3 ปีที่แล้ว +7

    This is the only Karen that the internet will approve.
    The Karen that talks technical and operates CNC.
    We need more Karens like you!

  • @AlexAndreiZAR
    @AlexAndreiZAR 3 ปีที่แล้ว

    Man you are really awesome!

  • @davidmitchell5638
    @davidmitchell5638 3 ปีที่แล้ว

    Doing what tavarish promised us but didn't! Following this wholeheartedly.

  • @flyhacking5830
    @flyhacking5830 3 ปีที่แล้ว

    Quality content as always

  • @Usmanthemecano
    @Usmanthemecano 3 ปีที่แล้ว +1

    Channel is grossly underperforming... Great content

  • @seansswaps3804
    @seansswaps3804 3 ปีที่แล้ว

    I'm glad to see you doing this swap. I tried manual swapping a C32 4 years ago and got stuck at the ECU. I got as far as getting the engine to start and run without the transmission or shifter modules. Unfortunately the engine's power was severely reduced. None of the US based tuners were willing to help me with the swap either. I wish you better luck!
    Mercedes has a flex-plate part number change at engine #60 046180. I ran into this on an M112 and I think it changed in 2004. Not sure if the 113k's were later though.

    • @deepredkadett
      @deepredkadett 3 ปีที่แล้ว

      Why haven’t I read this 1month earlier? Just swapped my Slk32 to manual and have exactly the same problem :-(
      Was able to code it to manual, so could start without shifter and tcu but absolutely no Power :-( :-(

  • @martinprehjan9944
    @martinprehjan9944 3 ปีที่แล้ว +1

    I myself have been looking into this for a M-119 motor for my coupe! ...but ended up converting the NAG1/722.6 to a paddle shit setup using an arduino!
    Hell...I'd even consider swapping in a M-113K just to be able to have a CD-009 backing it, since I would think you probably would not be willing to make one for the M-119!!!
    I guess I need to get intouch with you guys to see if you are willing to make one for me!!! ...that would be awesome!
    Hell why not make one for the M-120 motor, just imagine a 6 speed manual for the v12! I would love to do one myself, it will be smooth and powerful! wow what a combination!
    Keep up the great work, you made a lifetime subscriber out of me, now if i can only become a customer too!
    On a side note, I can count at least half a dozen customers that have asked me for just such a conversion in my shop! If only everything existed so I could just say yes and start ordering swap kits!
    I wonder how hard it will be to make different transmission side and flywheel couplers for say a Tremec 6 speed and a ZF transmission! ...just food for thought guys!!!
    ...and I guess gal!!! As for the female CNC'ist...brains and looks, now she is a winner in my book!

  • @mariosnikolaou5212
    @mariosnikolaou5212 3 ปีที่แล้ว

    Wow congratulations!

  • @winkertune
    @winkertune 3 ปีที่แล้ว +1

    Very very cool! can't wait to see this happen and we see some manual 211 e55s. I recently manual swapped my w210 e55 but I used a crossfire transmission, I wonder how much stronger this trans is?

    • @Realtime1501
      @Realtime1501 3 ปีที่แล้ว +1

      This has been pushed to over 1400hp in the Nissan world using a stock transmission,so I don't think the Mercedes engine will be a problem

  • @papapetad
    @papapetad 3 ปีที่แล้ว

    You may also think about shifter surround to integrate it neatly with the interior + driveshaft and as you said, electronics, to make it a full kit if desired. Working these details out can be great value added for you with customers who wouldn't want to deal with it.

  • @iceeice1234
    @iceeice1234 3 ปีที่แล้ว +2

    Can you please do a super in depth video of how your able to get the electronics to work.

  • @Daemione
    @Daemione 3 ปีที่แล้ว +1

    Can't wait for part 2! Also can't wait for my stock C55 transmission to die so I have an excuse to make the swap. :p

  • @dave7856
    @dave7856 3 ปีที่แล้ว

    Hi Excellent video well done both of you and some very good positive comments, as a confidence check - a run out check on the face of the flywheel clutch surface to check for any misalignment and edge of flywheel for up and down would be my recommendation. Would it not be best to make your crankshaft adaptor from steel?

  • @Dr-Asim
    @Dr-Asim 3 ปีที่แล้ว +1

    Will the back of the crank be able to support the extra weight of having a heavy flywheel vs flex plate, and on top of that it's spaced further out, which also puts even more stress on the end of the crank.
    Really nice job anyways. This is how it should be done. Keep it up 👍🏾

  • @Timzeeee
    @Timzeeee 3 ปีที่แล้ว

    Sorry to ask but what bolt pattern is on the 300xz (8x?)
    Very nice adapter looks very good👌

  • @biomecaman3514
    @biomecaman3514 3 ปีที่แล้ว

    new sub love the content, who is your go to for suspension geometry

  • @patrickwerner6636
    @patrickwerner6636 3 ปีที่แล้ว

    Gutes Video

  • @hamedelrayyes
    @hamedelrayyes 3 ปีที่แล้ว

    That’s a dream coming true, great job, can you tell me what program you used for loads simulation?

  • @bigbird2100
    @bigbird2100 3 ปีที่แล้ว

    Great video 👍 could you use the probe to CCM each part and gather the data .

  • @nfarnell1
    @nfarnell1 3 ปีที่แล้ว

    One Question, will the flex plate be stiff enough to keep the ring gear aligned with the starter pinion? Looks like beautiful product, well done.

  • @iLLWiLLeM
    @iLLWiLLeM 3 ปีที่แล้ว

    Great work

  • @serbancordis3416
    @serbancordis3416 3 ปีที่แล้ว +1

    Electronics are very easy. Find a SDS (cracked version) and i believe there is a setting somewhere in the ECU section where you can select between manual and auto transmission.

  • @sarahdell4042
    @sarahdell4042 3 ปีที่แล้ว +15

    I smell E55 prices on the rise now 😂

    •  3 ปีที่แล้ว

      They have been going up, the last couple of years.

    • @alcantarainterior8078
      @alcantarainterior8078 3 ปีที่แล้ว

      Yep.. The time to buy em is now

    • @alcantarainterior8078
      @alcantarainterior8078 3 ปีที่แล้ว +1

      Btw the cheapest I have seen them is not less than 10,500

  • @csc_1
    @csc_1 2 ปีที่แล้ว

    In Germany we have W211 with manual Transmission from stock. 4 Cylinder engines.
    If you need a hanging MERC clutch pedal. Also the brake pedal is smaller in width.

  • @chesar32
    @chesar32 3 ปีที่แล้ว

    looking forward for next video

  • @autojando7223
    @autojando7223 3 ปีที่แล้ว +56

    Only time you forgot to formally introduce a new face to the channel is when you had a lady on it😂😀

    • @xfmotorsports
      @xfmotorsports  3 ปีที่แล้ว +27

      Mentioned her in a previous video. She does all the office work and some of the design and cnc stuff

    • @autojando7223
      @autojando7223 3 ปีที่แล้ว +6

      @@xfmotorsports
      Oopsss!
      I prolly missed the video.
      Keep the content coming, i'm loving the way you keep transforming channel from DIYer to a professional auto+machine shop with unimaginable prospects. Really wish i could be your intern bro.

    • @BOOYAGA
      @BOOYAGA 3 ปีที่แล้ว

      @@xfmotorsports you got a company email address?
      Have an idea I'll send you, just don't want to share it publicly 😜

    • @mohitkr.chaudhary4005
      @mohitkr.chaudhary4005 3 ปีที่แล้ว +1

      @@karenmork I had once sent an email earlier regarding a question of A Arms setup , but still have not received any response yet .
      If you dont have the specific answer to it or something, that too is fine with me, but atleast you could have informed about the same.

    • @mohitkr.chaudhary4005
      @mohitkr.chaudhary4005 3 ปีที่แล้ว

      @@karenmork Okay , no problem.
      Can you pls confirm the proper email address to which I will send the mail.
      The one link you provided above in the comments is just for text messages. I also had some images attached in my original mail, which I can't attach there.

  • @Vintageguy73
    @Vintageguy73 3 ปีที่แล้ว

    When you make an adapter do you work off the centerline of the crankshaft and transmission shaft and how close are your tolerances? Thanks!

  • @TheKing-pr4ef
    @TheKing-pr4ef 3 ปีที่แล้ว

    Great video man. Is it possible to do the same thing with w211 E350

  • @ludat5951
    @ludat5951 3 ปีที่แล้ว

    Hey man, like your videos, well done !
    I would love to manual swapCLS55 AMG, do you know if your adapters can work on CLS ? I appreciate your input .

  • @RealElwood1
    @RealElwood1 3 ปีที่แล้ว

    Very cool, what CAD/CAE software do you use?

  • @kiml85
    @kiml85 3 ปีที่แล้ว

    Interested in seeming how much electronics work it needs. I love my E55 and the only thing I wish was for it to be a manual.

  • @finlay230
    @finlay230 3 ปีที่แล้ว

    Just awsome 👌👍

  • @jaredp4478
    @jaredp4478 3 ปีที่แล้ว +1

    I would love to see some M120 stuff!

  • @driftalliance1556
    @driftalliance1556 3 ปีที่แล้ว

    love it!

  • @mb1088147
    @mb1088147 3 ปีที่แล้ว +1

    Would adding that much weight to the back of the engine would damage the rear crank bearing, I just thought of that when I saw how far the cd09 flywheel and clutch, looks amazing BTW

  • @alexpr0gressive
    @alexpr0gressive 3 ปีที่แล้ว

    How do you find out the bolt patterns for mercedes transmissions and engines? For example which 722.6 transmissions fit an m104.992 engine? great engineering

  • @johnparrish9215
    @johnparrish9215 3 ปีที่แล้ว

    A pretty Lady with her own CNC machine, she would never be lonely around here that's for sure.

  • @derrickmartinjr6871
    @derrickmartinjr6871 3 ปีที่แล้ว

    Did you 3D scan the bellhousings to design the adapters in CAD, or did you just measure them by hand?

  • @thinkstorm
    @thinkstorm 3 ปีที่แล้ว

    torque specs on the adapter - love it!

  • @guerinwoodgate
    @guerinwoodgate 3 ปีที่แล้ว +3

    There seems to be a high amount of mass being shifted away from the crankshaft flange. I am curious if there have been any calculations to simulate crankshaft fatigue or failure?

    • @xfmotorsports
      @xfmotorsports  3 ปีที่แล้ว +3

      There's actually a lot more force on the other side of the crankshaft when it's pulling supercharger belt with over 200kg of tension. An 18kg clutch and flywheel doesn't really do much. Been running this setup reliably in my racecar for about a year

    • @DarkstarNovembr
      @DarkstarNovembr 3 ปีที่แล้ว

      @@xfmotorsports How do you find the forces to simulate on the adaptor flanges?
      Did you just simulate a maximum inertial force of the mass of the transmission? How extensive was it?
      I'm just interested in how someone might go about it, if all the information isn't given

  • @kopiwerks
    @kopiwerks 3 ปีที่แล้ว

    May have missed it but will you be making adapters for other engines too? e.g. 2JZ to BMW transmission.