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Thread: Turbo e30 street car

  1. #51
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Well had my first race the other weekend, car did fine. i did poorly. Its been about a year since i ran last so i guess its expected.

    As for boost control looks like my plumbing modification did perfectly and i now hold 6psi to redline.

    here is a before, as you can see we were hitting 20psi at 5500 rpm.

    e30 power4 by euro2fast4u, on Flickr

    Now its very flat.

    graph by euro2fast4u, on Flickr
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  2. #52
    Join Date
    Jul 2005
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    California
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    564
    My Cars
    Bima
    idk if i'm reading that right but the dark purple line and the dotted red line stay about the same boost before the red spikes to 20psi at about 5,300
    yet the red appears to be making 100hp over the purple at the same rpm/boost before the spike about 4,500 ???

  3. #53
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Those were from street pulls at various locations. Im sure hill's played a roll in parts of the inconsistency.

    Lower graph, dotted is boost level, solid is afr.

    Dark purple was lower boost. around 7 psi at 4500 rpm.
    red was around 13psi at 4500 rpm.

    Since most of the issues are solved i plan on rescheduling a dyno tune FINALLY!
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  4. #54
    Join Date
    Jul 2005
    Location
    California
    Posts
    564
    My Cars
    Bima
    i highly recommend e85 even if it's low boost.

  5. #55
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Very Soon. have the sensor and the CANBUS adapter but its battling me. everything was good with the canbus adapter but just crapped out .

    soo close!

    Did beat the snot out last weekend and ran flawlessly. what a good day of racing
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  6. #56
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Started the 10 year late project and began finishing the paint. 1500,2500, compound, polish, wax.

    20180626_220948 by euro2fast4u, on Flickr

    You can clearly see the orange peel in the clear coat.


    20180626_221548 by euro2fast4u, on Flickr

    20180626_222138 by euro2fast4u, on Flickr

    Top half is before, bottom is after.

    20180626_222220 by euro2fast4u, on Flickr

    20180626_222940 by euro2fast4u, on Flickr


    Before

    20180702_214453 by euro2fast4u, on Flickr

    After

    20180702_214444 by euro2fast4u, on Flickr

    Moved outside to continue the wet sanding.

    20180703_160842 by euro2fast4u, on Flickr

    20180704_203238 by euro2fast4u, on Flickr



    20180705_193529 by euro2fast4u, on Flickr


    i didnt get the best before and after photos. There is still orange peel at the paint level and some scratches in the clear that i gave up on.

    Next up is the roof which i will document better. Other news its running at around 12-15 psi. But kept miss firing. Went to swap plugs and noticed my plug wires were coming apart. turner plugs from ecs. New set is incoming and ill return the old one but was hoping to run at the 1/4mile today.

    I have a set of other wires i may throw back on as i build the 10.4mm Taylor 409 wires i originally wanted to run.


    received_2353252608019025 by euro2fast4u, on Flickr
    Last edited by euro2fast4u; 07-06-2018 at 01:58 PM.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  7. #57
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    New TinyIOX arrived and up and running,

    Oil temp and pressure are now able to be logged by megasquirt.

    2018-07-09_07-08-38 by euro2fast4u, on Flickr

    Started working on the next sensor input, flex fuel

    2018-07-09_07-08-53 by euro2fast4u, on Flickr

    Followed closely by cooling fan control.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  8. #58
    Join Date
    Jul 2005
    Location
    California
    Posts
    564
    My Cars
    Bima
    Sweet.
    What frontal area and coefficient of drag did you use on virtual dyno i want to try it out.

    nevermind i'm always making like 700tq never works for me. hp/tq never even cross. Doesn't show correct boost.
    Last edited by Robocop; 07-10-2018 at 02:32 AM.

  9. #59
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    I think i google searched a while back for it.

    Heres a video of the gauges going from local to remote display.

    20180708_184606 by euro2fast4u, on Flickr

    Last night i was able to get the PWM fan control setup and operating sorta well. I think im going to do a MAT Vs Coolant temperature.

    I wish i could add some if statements to the code to do some self checks on the system every time. Video showing this will be up shortly.


    2018-07-11_01-30-00 by euro2fast4u, on Flickr

    and the poor video i took of the fan running off of TPS.

    20180710_222309 by euro2fast4u, on Flickr
    Last edited by euro2fast4u; 07-11-2018 at 06:05 PM.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  10. #60
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    We got e85 sensor input!!!!!

    2018-07-12_01-15-54 by euro2fast4u, on Flickr
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  11. #61
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Two less lights.

    Got the oil level sensor working and the coolant level sensor done. Got the new 10.4mm Ignition wires completed.



    2018-07-30_12-21-12 by euro2fast4u, on Flickr

    In case you didn't know, the e30 has more trunk space then an e39.

    2018-07-30_12-20-46 by euro2fast4u, on Flickr

    2018-07-30_12-20-25 by euro2fast4u, on Flickr
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  12. #62
    Join Date
    Jul 2005
    Location
    California
    Posts
    564
    My Cars
    Bima
    So when are you going to post a 25psi e85 run?

  13. #63
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Quote Originally Posted by Robocop View Post
    So when are you going to post a 25psi e85 run?
    Soon. I glazed my clutch the other week so im working that off. I also have determined i have carbon tracing on the cap or rotor im looking into.

    Once those two are figured out i want to take to the track (1/4) and then dyno tune.

    Been tuning the warmup enrichment this weekend. Need to determine a way to mount the flex fuel sensor as this seems to be a little black magic ie no real way to easily mount it.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  14. #64
    Join Date
    Jul 2005
    Location
    California
    Posts
    564
    My Cars
    Bima
    on the clutch i slip it all the time.
    what works for me is to kick the clutch in when you're on the freeway. Cruise at 70 and just kick it in real quick couple times in a row.
    it seems to re-bed and come back to life. Also try slipping it more than normal in 1st. Works excellent for me w/ segmented kevlar.

  15. #65
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Quote Originally Posted by Robocop View Post
    on the clutch i slip it all the time.
    what works for me is to kick the clutch in when you're on the freeway. Cruise at 70 and just kick it in real quick couple times in a row.
    it seems to re-bed and come back to life. Also try slipping it more than normal in 1st. Works excellent for me w/ segmented kevlar.
    Wow good tip. have not tried that yet, i turned the boost down to minimum level and been driving it a bunch around town.

    Thanks for the technique.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  16. #66
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Well, lifes been a little busy. Miss fire has made its way to even low boost setting. Decided to go to the track however and see how it would do. (did not think my miss was that bad untill my first run at 4.8psi)

    Rotated tires to get rid of the flat spots.

    20180828_170224 by euro2fast4u, on Flickr

    Bimmer was supervising.

    20180828_084225 by euro2fast4u, on Flickr

    Took it to the local car show. Only german car there.

    20180826_102228 by euro2fast4u, on Flickr

    and should have gotten more photos

    In the end she ran the following.

    20180831_201533 by euro2fast4u, on Flickr

    14.2 @ 94 with only 4.8 pounds of boost and 6k rpm due to miss fire.

    Time to get the new cap and rotor and try again.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  17. #67
    Join Date
    Jul 2005
    Location
    California
    Posts
    564
    My Cars
    Bima
    new cap and rotor? wtf r u thinking my dude.

    https://www.diyautotune.com/product/...wer-coil-pack/
    Cheaper and all u need.

  18. #68
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Im not i guess, i want to do the lsx coils in the future but i dont know if my ms will be able to handle it and i never fully understood the coils yet.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  19. #69
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    5,564
    My Cars
    86 325es
    What megasquirt do you have? Are you running the "extra" code?


    86 325es, 2.8L m50, S472sxe, MS3pro Ultimate, e85, solid rear axle, 4 link, spool, TH400 trans, Protorque converter, 28x10.5w slicks, zip ties
    Best = 9.43 @ 149.15 mph, 1.30 60 foot 28 psi boost

  20. #70
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    MS2 Extra yes. But i feel like i filled all my outputs. Besides the three LED's they are still stock. New cap and rotor came in, if the weather holds out i may run up to the track and see what the result is.

    BTW anyone use draggy?
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  21. #71
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    New cap and rotor are in, turned the boost up but still have a false rev limiter only when i go full throttle. roads were too wet to do any real testing or data logging.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  22. #72
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    with life giving me lemons i present you lemonade.

    Havent been able to get much done but i did get half a door 95% sanded and cleaned up.

    IMG_20181001_191303_707 by euro2fast4u, on Flickr


    Engine bay shot for shits and giggles.

    20181009_213605 by euro2fast4u, on Flickr

    As the days get colder i have been working on the cold start tuning and idle tuning. No IAC so need to be a bit more precise on the tune. after some tinkering i got the idle +/- 20rpms without a IAC.


    20181028_213107 by euro2fast4u, on Flickr
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  23. #73
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    Happy holidays All! Hope everyone has a fun and safe new years.

    I have taken a few weeks off work and have been able to spend 2 of the days on the e30. That has resulted into finding the final issues with the misfires.

    Recap of ignition system.

    New 10.4mm Taylor wires
    New Cap and Rotor
    New BRP7ES plugs gapped to .xx" (small and need to look at my gauge)
    New crankposition sensor and connector.
    New coil

    Every part made the car run better and placed the misfire at a higher rpm/boost level.

    Given that it still did not fix the issue. Given that i started to dig into what was changed during the two days the tuner was on site. Comparing the tune i found the following.

    This was what was currently in the ecu
    Screenshot_20181224-221315_Gallery by euro2fast4u, on Flickr

    This was compared to DIY base tune as i could not find my previous tune.
    20181226_211724 by euro2fast4u, on Flickr

    As you can see i have 3.8ms versus 1.0ms for MINIMUM spark duration.

    I started digging deeper as i sorta undestood dwell but not minimum spark duration. My google searching found this.
    Screenshot_20181224-171408_Google by euro2fast4u, on Flickr

    Now going back through the logs my dwell in the logs seemed odd. as RPM went up, my dwell went down pretty quickly. Referring to very little to no time to charge the coil before the next ignition cycle.

    Here is an old log,

    20181228_140115 by euro2fast4u, on Flickr

    As you can see RPM increses and my Dwell decreases pretty steep as the rpm creeps up.

    Now with the settings changed, I get minimal drop.

    I should Note my Dwell is set to 3.0ms and my minimal spark duration is at .5 I can reduce this to .1 however i wanted to see how it would react as i increased boost.

    20181228_141419 by euro2fast4u, on Flickr

    The results are exciting. I finally get to complete full throttle pulls at up to 17psi.

    VID_44380620_092319_445 by euro2fast4u, on Flickr


    As you may be able to notice, the clutch is starting to slip

    CE_Video_1546189902986 by euro2fast4u, on Flickr

    Video software is not the best.
    Last edited by euro2fast4u; 12-30-2018 at 01:15 PM.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  24. #74
    Join Date
    Jul 2005
    Location
    California
    Posts
    564
    My Cars
    Bima
    is this coil specific?
    you made me look at logs.
    mine is set to max 2.9ms and does not have a minium, but yet it stays about 3.6ms through out the rpms
    what firmware you have it's alittle different.

  25. #75
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    511
    My Cars
    '87 e30, '02 e39 Dinan
    I dont believe this is coil specific, however the blaster coil should see a max of 3.5 to 3.8 from what i looked at. Each coil has a specific maximum amount of time it can charge without over heating. I vaguely remember that you up it a bit at a top and do a few pulls and see if it gets hot.

    Looks like my current tune is MS2Extra comms 342a2

    I think i have been running this for a year or two. Looks like i can update here as well. Need to see what the differences are.


    Did a few pulls to find the true limit of the clutch. Red and blue are either slightly up hill or slightly down hill for an average.

    e30 power6 by euro2fast4u, on Flickr

    Then bumped it up back to 17ish. Blah it just blows right through it

    e30 power5 by euro2fast4u, on Flickr


    Its great to see relocating the wg really helped the boost control. Again still on a manual boost controler.

    e30 power7 by euro2fast4u, on Flickr



    So a while back i installed a secondary board to capture additional inputs and outputs. However i seemed to have goofed something up with it trying to do the flex fuel sensor.

    Ill need to look to see if i can connect the flex sensor directly to MS. Ill see what i can do tonight and tomorrow.

    I also noticed when i ran 17 pounds i hit close to 79% duty cycle. I have a 440 that just fits in the tank that i may try and run in parallel with the 255.

    i know my fuel lines cant handle it but im curious what the true limit is of the system. But is it worth it even trying e85 with the clutch that cant handle much more?

    Flex fuel sensor, 440 lift pump are all thats mentally holding my back from the dyno. Maybe i should just go now and have them final tune it. Thoughts? EAE didnt go very well but i did get Accel enrichment to help with tip in.

    Late night update, flex fuel sensor is up and running. Guess we will be doing some flex fuel tuning tomorrow.
    Last edited by euro2fast4u; 01-02-2019 at 09:51 PM.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

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