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Thread: E46 Compact Track Day Build

  1. #101
    Join Date
    Jan 2019
    Location
    Sweden
    Posts
    9
    My Cars
    Porsche 987.1 BMW 318ti
    Bittersweet indeed....was always the plan to swap engine during next winter but i was hoping to enjoy the 4 cylinder a bit longer!!

    I have to check about the cage....is from a swedish company anf fully FIA approved. Lucky me i have a friend who owns a workshop and has been a WRC mechanic and is a great welder, could have never got it done alone.

    Brake and suspension are a DREAM on this car!!!
    Suspensions are JRZ Motorsport 3 ways adjustable coilovers. I was so lucky to find a guy who took them out of a M3 GT3 car as he tought they were too harsh!! They felt a bit overkilling on the 2.0l but i expect them to do real good under new engine!!!
    I will try to make some pics along the way...but I'm really crappy at it!

    BMW cup is like a brand class championship around all tracks in Sweden. There are 3 classes called standard, modified and special with different rules and level of modifications you can have on the car. Is really cool, even cars and competitive and all levels and expecially standard class relatively "inexpensive".
    I think is open to danish drivers as well....just check on BMW club Schweden motorsport you should find more info or let me know if i can help!


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  2. #102
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    So Iíve decided to take the Compact out of service this season to do a major overhaul of the rear end, install an LSD and maybe also do some engine work as well.
    The plan is to lower the subframe and have everything blasted and painted and have RACP plates installed to reinforce it while Iím in there. I have also contacted Vince from Practical Performance who makes the VinceBar and heís been gracious enough to sell me the front gussets cups stand alone as the full bar doesnít fit a Compact.
    Iíll also be changing the following:
    Half shafts, SKF
    Subframe mounts, Strongflex
    Diff mounts, Strongflex
    Adjustable lower control arms
    Wheel bearings

    Getting the car out of storage at my parentsí farm and found to my horror that mice had moved in all over!



    And a nice little garbage/toilet area on the intake manifold


    Luckily it doesnít seem like they have eaten any wires or anything, but now I can debunk the myth/advise that putting dryer sheets in the car will deter mice because I had dryer sheets everywhere and they didnít seem to care.

    And good vacuum and the work commmenced yesterday by first getting the car in the air, which always seems to take forever and I find it a bit nerve wracking.


    Got to taking the exhaust off with the help of my two boys and it really is a two man job and 1 + (2x0.5) = 2



    Well I canít wait to get going again on Monday

    Regarding the engine work mentioned, I want to install a wired oil pump nut and change the oil pan gasket as it is leaking. Is there anything else that could/should be done while I have the oil pan off? I was thinking of rod bearings maybe, but are these as prone to failure on the M54 as the S54? The car has 300kkm/190k miles on it and from the info I have it has been well kept with regular service and quality oil from a dealership. I donít believe it has ever experienced any oil starvation.


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    Last edited by KlausH79; 04-14-2019 at 02:01 PM.

  3. #103
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    Work continues

    Had to dremel and chisel off the axle nuts








    Eureka!


    It needs a good clean to be sure but no cracks in sight so far






    But a few popped spot welds here and there


    The driver side upper inner control arm bolt was not coming out....passenger side came out no problem....removing the diff helped


    Cracked rear diff bushing




    All small parts and all nuts and bolts in labeled ziplock bags all ready to be cleaned


    Complete rear end disassembled


    Genuine BMW part.....by GKN




    Everything went very smoothly and it was a quite straight forward procedure. A few things need to be replaced that I hadnít thought about simply due to them being too rusty and old like brake backing plates, the ebrake cables (also got snagged and bent when lowering the subframe), and I think the ball joints in the rear trailing arm need to be renewed although they are from when I did the suspension a few years back.

    All in all good progress!

    Now on to cleaning, painting and parts sourcing




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    Last edited by KlausH79; 04-18-2019 at 02:08 AM.

  4. #104
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact
    A little work was done today

    Wheel bearings coming out


    Subframe bushings needed the big breaker bar


    All the stuff that came off of the subframe and trailing arms


    ďNakedĒ parts


    They are now ready to get blasted. I may wire wheel the subframe myself pending the price to get them blasted.

    For me doing this job this is the toolset to have


    I also have a press but I can never get those big parts set up and lined up right so I always use this and itís worked for every bushing job so far. I did my FCABs a while back and even those little things was a right PITA in the press and even then I resorted to the above set for the install of the new poly.

    Well a bunch of new parts have been ordered and Iím looking to maybe find some new side bearings for the diff, but I canít find any part numbers for those. Any help would be much appreciated.


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  5. #105
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    Well with the subframe and trailing arms off to be blasted and powder coated I have been busy with a wire wheel, or several wire wheels, on all the control arms, accessories, nuts and bolts and been priming and painting.

    Before


    During


    After


    Before


    After


    Little bits after


    I also received some very nice new parts

    First up front cups from Vince at Practical Performance. These are part of the VinceBar kit but since this is a Compact the bar doesnít fit but weíre hoping the cups are a match.



    Super nicely made items with all the stuff needed for install included. Canít wait to get them fitted in the car.

    And a whole pack of goodies


    As Iíve progressed this is turning into a poor mans DIY Redish Motorsports underbody restoration

    All I need now are bushings and the reinforcement plates....oh and the LSD of course

    On that note does anyone know the FAG or Koyo part nummers for the side bearings in the 188K diff? Iím not quite sure if I should replace them or not, but what I have found is that buying bearings from a ďbearing placeĒ is much cheaper than buying them from a ďdiff placeĒ so if I could get them for cheap I might do it...




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    Last edited by KlausH79; 04-28-2019 at 01:48 PM.

  6. #106
    Join Date
    May 2019
    Location
    Germany
    Posts
    29
    My Cars
    2007 Toyota, 2002 BMW
    Hi Klaus, I'm following since a bit of time your thread. Just a couple of questions, about the Vince-Bar. Have you found what components are actually compatible with the TI? In your opinion, is it worth installing them even if planning just for occasional (i.e. just twice a year) track days?
    Thanks in advance for your time, and keep going, it's a wonderful thread!

  7. #107
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    Quote Originally Posted by AEnrico View Post
    Hi Klaus, I'm following since a bit of time your thread. Just a couple of questions, about the Vince-Bar. Have you found what components are actually compatible with the TI? In your opinion, is it worth installing them even if planning just for occasional (i.e. just twice a year) track days?
    Thanks in advance for your time, and keep going, it's a wonderful thread!
    Hey, thank you so much!

    I havenít gotten to cleaning up the RACP so I donít know if there are any small cracks yet. From what I have read there havenít been found any Compacts with cracks so far. This could be due to the fact that far the most are not equipped with a very powerful engine, but then again many 325 coupes do have cracks. Iím doing the whole thing to be safe and not sorry. Especially because itís a big job to take off the rear end and something Iím hoping only to do once, so Iím doing everything I can think of that needs doing from underneath so if any more mods need doing they can be done from up top.
    As for which parts from Vince fit I believe only the front gusset cups will fit so Iím only installing these to start with. I donít think neither the bar nor the skinz will fit.

    Quote Originally Posted by AEnrico View Post
    Just a dumb question to everybody, do you think a 260K km 325TI (160T miles) could be a sensible choice for a daily drive plus occasional track days? Just asking about your own experience, what could be expected from such a car.
    I think the 325TI is an awesome car to daily drive. I have been wanting to buy another one actually to replace our old and ratty Hyundai Getz as our daily no. 2. Mine has over 300kkm on it and runs perfectly. So if you have a good well kept example I think there are a lot of good kmís in one of those. As for track days I think itís a really fun car to drive and itís fairly cheap to run (compared to my brothers Elise and my friends GT3). I have been on a bunch of track days from Sweden to Belgium to the UK and it has never let me down while my friends have cooked brakes, overheated engines, noisy bearings, loose drive shafts etc, and Iíve had nothing (knock on wood). But of course you need to take the necessary precautions when tracking. Just general good maintenance, good quality fluids and maybe some uprated brake pads.

    Here are some of the latest photos

    Diff in pieces


    Parts back from powder coating


    Installing wheel bearings




    I have also stared to dabble with Autodesk Fusion to design my own RTAB with a spherical bearing. This is just a 3D printed prototype for test fitting purposes.




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    Last edited by KlausH79; 05-11-2019 at 04:12 AM.

  8. #108
    Join Date
    Jan 2019
    Location
    Sweden
    Posts
    9
    My Cars
    Porsche 987.1 BMW 318ti
    Hello guys! Filling in the latest developments on my engine swap...
    It up and RUNNING!!!! This M54 engine is a PEACH in a compact!!!

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  9. #109
    Join Date
    Jan 2019
    Location
    Sweden
    Posts
    9
    My Cars
    Porsche 987.1 BMW 318ti
    While busy with the swap we decided to upgrade to single mass fly-wheel, racing clutch and upgraded pulley kit. We installed early E39 exhaust manifolds(no cats...) and that forced us to customize part of the exhaust to make it fit...
    Finding an M20 starter to fit the fly-wheel was also not the easiest, expecially since we found out our M50 starter would not work after the whole engine was fitted to run....
    All in all has been an exciting but challenging adventure up till we started the engine.
    Than it all went AMAZINGLY smooth!!!!
    M54 engine from a 5 serie + full loom from E46 6 cylinder + tuned original ECU + E46 318ti car and it ALL works perfectly together without any check lamp or issue!!!!AMAZING!!
    I'm impressed and can't wait to have the car on track next week!!!!

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  10. #110
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact
    Wow. Very cool! I like the catless E39 manifolds! I didnít know they fit! They look much less restrictive than the stock manifolds. Is it a 1:1 fit or did you need any modification?


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  11. #111
    Join Date
    Jan 2019
    Location
    Sweden
    Posts
    9
    My Cars
    Porsche 987.1 BMW 318ti
    Thanks I'm excited like a kid at Christmas!
    The fitting is perfect size and sealing wise but we needed to drill and tap some extra holes on the engine body as the original would require 4 bolts less while the e39 is supposed to have 4 bolts each cylinder intake. To make sure not to have any leakage we followed the manifolds pattern on the engine. On the plus, with Apple muffler and just an 100cel cat, sound is amazing!

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  12. #112
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    Well I got some time with the Compact today and started project clean and prep.

    First I emptied and dropped the fuel tank


    Then I started cleaning the wheel wells




    And I tried to find a good method of cleaning the RACP where the subframe sits and that stuff need some serious engine cleaner that I found. Itís a pressurized mix of petroleum and acetone.



    But with that stuff itís going to go just fine I think....the gunk just dissolves and runs off.


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    Last edited by KlausH79; 05-17-2019 at 02:13 AM.

  13. #113
    Join Date
    May 2019
    Location
    Germany
    Posts
    29
    My Cars
    2007 Toyota, 2002 BMW
    Hi Klaus, I'm sorry to bother you again. I'll have to replace front struts, and I'm not able to make my mind on this topic. What's your experience so far with the Bilstein B12? Are they durable? Last bit of information required, I tried to look for the proper set for our cars on Bilstein's website, to no avail, 325TI seems to be not listed. What is the exact set you ordered?
    THX for all your help and for your wonderful thread.

  14. #114
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    Quote Originally Posted by AEnrico View Post
    Hi Klaus, I'm sorry to bother you again. I'll have to replace front struts, and I'm not able to make my mind on this topic. What's your experience so far with the Bilstein B12? Are they durable? Last bit of information required, I tried to look for the proper set for our cars on Bilstein's website, to no avail, 325TI seems to be not listed. What is the exact set you ordered?
    THX for all your help and for your wonderful thread.
    Hey Enrico
    Not a bother at all. If you are going to upgrade to Bilstein dampers I wouldnít do fronts only. It would be way to soft in the back if you keep the original rear dampers and springs. Also the B8 dampers (which are in the B12 kit)are only suitable with shorter springs. If you are going to use the OEM springs you need the B6 dampers.
    I am very happy with the B12 Sport Line kit. It is a lot stiffer than the original stuff that was on my car and that is all I can compare it to. It holds up very nicely on track duty as well and the car has gotten nothing but praise from instructors at both Ring Knutstorp and Spa.

    As for durability I donít think you can do much better than Bilstein and Eibach.

    The kit I bought had the part number E-E95-20-001-02-22a9252. I bought it in Germany through tunero.de




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    Last edited by KlausH79; Today at 06:19 PM.

  15. #115
    Join Date
    May 2019
    Location
    Germany
    Posts
    29
    My Cars
    2007 Toyota, 2002 BMW
    Thank you very much! I'll go for the Bilstein, maybe the B8 only as my car already has lowered springs (no idea from which company, I'm bracing myself for the worst! :-D ), I'm in need to replace front struts ASAP and I don't like to put a lot of money in this car until I've some solid proof it is a sound car.
    About strut tower reinforcement, are there any for the rear towers too, or just for the front ones? I'm quite thrilled already about what to expect from my TI, next weeks I'm planning to get a short HPDE lesson from BMW itself and then to plan for a track day in some circuit in Bayern or Baden-WŁrttenberg (No, I'm not referring to Hockenheimring, as far as I know they require to wear full Nomex underwear and proper helmet and so on, too expensive for my first try!).
    By the way, I spent some time in Denmark many years ago, in full winter. It was quite an experience even if I'm quite used to rigid climates. Something like missing my own bus stop on December at around Midnight on a very windy night, and coming back on foot to my hotel with -18 Celsius on a more than 1 Km long trip. I let to your imagination to realize the picture the concierge was presented with when I finally got to my hotel!

  16. #116
    Join Date
    Aug 2013
    Location
    SÝborg, Denmark
    Posts
    137
    My Cars
    2001 E46 325ti Compact

    E46 Compact Track Day Build

    Quote Originally Posted by AEnrico View Post
    About strut tower reinforcement, are there any for the rear towers too, or just for the front ones?
    Yes there are rear ones too.
    Like these

    Just get the cheapest you can find. They are all the same. You can also put in a rear strut brace which then acts as a reinforcement plate as well.
    This is the one I got from PG Racing on eBay

    Hereís a link to it
    https://rover.ebay.com/rover/0/0/0?m...2F173928788594


    Quote Originally Posted by AEnrico View Post
    I'm quite thrilled already about what to expect from my TI, next weeks I'm planning to get a short HPDE lesson from BMW itself and then to plan for a track day in some circuit in Bayern or Baden-WŁrttenberg (No, I'm not referring to Hockenheimring, as far as I know they require to wear full Nomex underwear and proper helmet and so on, too expensive for my first try!).
    Nice! There are a lot of good tracks in Germany.....not so much here in Denmark. #trackenvy


    Quote Originally Posted by AEnrico View Post
    I By the way, I spent some time in Denmark many years ago, in full winter. It was quite an experience even if I'm quite used to rigid climates. Something like missing my own bus stop on December at around Midnight on a very windy night, and coming back on foot to my hotel with -18 Celsius on a more than 1 Km long trip. I let to your imagination to realize the picture the concierge was presented with when I finally got to my hotel!
    Danish winter sucks...summer is amazing...Denmark in June July August is my favorite place on earth


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