Page 56 of 62 FirstFirst ... 6314647484950515253545556575859606162 LastLast
Results 1,376 to 1,400 of 1544

Thread: E46 330i Automatic - M54B30 Turbo

  1. #1376
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    I believe the N52 was only 2.5L in North America....but in Europe they got the 3.0L. I have a friend in Europe that had a 3.0L in a Z4...and he said it was almost like an S54 in power character. (He has first hand experience with the M54, and S54) He loved it...but moved to a P car before the boost bug hit.

  2. #1377
    Join Date
    Jun 2005
    Location
    New England
    Posts
    25,402
    My Cars
    F90 M5; E36 M3 Turbo
    We got the 3.0L N52 in the US. I think stock it was about 260 crank hp but people have added bolt on mods to get closer to 290 crank hp. It does not have the high rpm capability and head flow and cams to get S54 power of 333 crank hp.

  3. #1378
    Join Date
    Jun 2011
    Location
    Vancouver, BC Ca
    Posts
    3,255
    My Cars
    1993 325is
    Quote Originally Posted by jakermac View Post
    I've got both here, bare blocks. But I ain't slinging an iron block around to weigh it. I can get someone the weight of the aluminum block though. It's light and airy like a feather! And for the record, Chikinhed and I are talking single Vanos aluminum blocks!
    I wussed out and weighed both.

    M52B28 block with main caps:



    M52B28 Single Vanos aluminum block without main caps. Weighed main caps with bolts seperately - 8.5lbs

    Last edited by jakermac; 01-21-2018 at 10:49 PM.

  4. #1379
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    50 lbs difference

  5. #1380
    Join Date
    Sep 2005
    Location
    Bellingham, WA
    Posts
    3,372
    My Cars
    e30
    Dang, big difference!
    -Nick
    91 E30 M42 on VEMS

    Turbo Camshaft Thread

  6. #1381
    Join Date
    Jun 2005
    Location
    New England
    Posts
    25,402
    My Cars
    F90 M5; E36 M3 Turbo
    If I got rid of my expensive steed speed twinscroll and expensive efr9180 and went to a boost logic and pt 6466, I could save 25 lbs and $1250.

  7. #1382
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    4th gear
    88mph
    Rear tires break loose



    I should be "testing" on a dyno...

  8. #1383
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Try it at 140 on a 325 drag radial


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  9. #1384
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    ^^^ I'm not going to try 140 on the street.....

  10. #1385
    Join Date
    Jan 2007
    Location
    A house
    Posts
    2,251
    My Cars
    '86 325e, '14 VW EPA
    Quote Originally Posted by PEI330Ci View Post
    ^^^ I'm not going to try 140 on the street.....
    mcnuggets.jpg

  11. #1386
    Join Date
    Sep 2002
    Location
    USA
    Posts
    45,770
    My Cars
    BMWs
    My car will spin in these temps in 4th - if I haven't driven the car for a couple months (like now in winter) it really gets the heart juices flowing

  12. #1387
    Join Date
    Oct 2010
    Location
    Huntsville, AL
    Posts
    1,904
    My Cars
    95 M3
    Quote Originally Posted by PEI330Ci View Post
    4th gear
    88mph
    Rear tires break loose



    I should be "testing" on a dyno...
    its amazing how long the manifold pressure stays at 19psi, when it appears the throttle position is at 10% open.
    WOT

  13. #1388
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Is that commanded throttle position or actual with the DBW?


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  14. #1389
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    Quote Originally Posted by hsvturbo View Post
    its amazing how long the manifold pressure stays at 19psi, when it appears the throttle position is at 10% open.
    Your comment confuses me.

    Are you talking about the DBW throttle being at 90%?

  15. #1390
    Join Date
    Sep 2002
    Location
    USA
    Posts
    45,770
    My Cars
    BMWs
    Quote Originally Posted by PEI330Ci View Post
    Your comment confuses me.

    Are you talking about the DBW throttle being at 90%?
    He's noticing how the manifold pressure bleeds off relatively slowly for the throttle having slammed shut

  16. #1391
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    Quote Originally Posted by someguy2800 View Post
    Is that commanded throttle position or actual with the DBW?
    That is the actual DBW throttle position.

    The Throttle Pedal was at 100%

    I was using a taper strategy to try to control boost creep.....that was an early run.

    The more I tested, the more I refined the strategy eventually ending up on around 55% throttle to hold boost pressure to about 11 PSI.

    The was as a result a drive pressure delta of about 5 PSI under load. (15 PSI back pressure, 11 PSI inlet manifold pressure)

    Not an ideal way to control boost creep, but it was definitely worth the time to play with. (Really good learning experience)

  17. #1392
    Join Date
    Oct 2010
    Location
    Huntsville, AL
    Posts
    1,904
    My Cars
    95 M3
    The throttle goes from 90% to approx 10% and the manifold pressure stays at ~19psi, then drops to vacuum. Maybe there is a time delay on the transducer?
    WOT

  18. #1393
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    Quote Originally Posted by hsvturbo View Post
    The throttle goes from 90% to approx 10% and the manifold pressure stays at ~19psi, then drops to vacuum. Maybe there is a time delay on the transducer?
    From when throttle starts to close, to when the inlet manifold goes into vacuum, it takes 0.154 seconds.

    When the throttle arrived at 10%, to when the inlet manifold went into vacuum, it takes 0.077 seconds

    Time for a human to respond to stimulus:

    Visual = 0.250 Seconds
    Audible = 0.170 Seconds
    Touch = 0.150 seconds

    From the drivers seat, I can confirm that I don't feel any delay in system response.

    With the MS43 OEM ECU though....there definitely was a noticeable delay on the N/A car....and it seems to have gotten worse on newer cars. I drove my Brother's 2017 Audi S5 Sportback recently, and from when you lift off the throttle at WOT in first gear.....it takes nearly a second to stop accelerating!!!

  19. #1394
    Join Date
    Jun 2004
    Location
    The D, MI
    Posts
    1,406
    My Cars
    97 M3, 98 328i, 13 Cruze
    Most modern strategies have "pillowy" tipout/dashpot features for driveline management and oxygen storage in the catalyst.

  20. #1395
    Def's Avatar
    Def is offline Lead Disagreement Eng PE
    Join Date
    Aug 2002
    Location
    Seattle, WA
    Posts
    13,547
    My Cars
    SW22, Volt
    Quote Originally Posted by Kevin325i View Post
    Most modern strategies have "pillowy" tipout/dashpot features for driveline management and oxygen storage in the catalyst.
    Yep, eeking out that last bit of emissions reductions during EPA test cycles has caused these double digit automatics with aggressive upshifting strategies and lazy throttle response. The only way mfgs get away with it is that the average consumer pays zero attention to their car as long as it cranks up and the radio works.

  21. #1396
    Join Date
    Jan 2007
    Location
    A house
    Posts
    2,251
    My Cars
    '86 325e, '14 VW EPA
    The first time I drove my car after converting it to standalone, the throttle response blew my mind. It made me realize that it's not the single TB that was the problem (major reason many people want ITBs) but the obscene damping that OEM control strategies have for drivability. It made my S52 more responsive than my S38 was.
    Last edited by TheJuggernaut; 02-07-2018 at 11:16 AM.

  22. #1397
    Join Date
    Sep 2002
    Location
    USA
    Posts
    45,770
    My Cars
    BMWs
    Quote Originally Posted by TheJuggernaut View Post
    The first time I drove my car after converting it to standalone, the throttle response blew my mind. It made me realize that it's not the single TB that was the problem (major reason many people want ITBs) but the obscene damping that OEM control strategies have for drivability. It made my S52 more responsive than my S38 was.
    Yep - I have a '95 525i on stock ECU and my '92 525i on DTA and its night and day (once tuned right).

  23. #1398
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    I went back and looked at some logs from the drag strip.

    The difference between when the throttle pedal (my foot) is 100%, and the DBW throttle is 100%, is on average 0.030 seconds.

    There is a lot of "P" gain used by Motec to achieve this, with the DBW motor at 100% until target is reached, then over a period of 0.090 seconds it backs all the way down to about 20% DC to hold the throttle wide open.

  24. #1399
    Join Date
    Aug 2012
    Location
    CT
    Posts
    3,880
    My Cars
    Twin turbo LS E36 M3
    I had my first M1 tuning experience on a GTR this past week, i was able to fumble my way around to get the car running decent, but def not a full tune by any means. That stuff is so sick. A little hard to navigate initially but its badass.

    How much different are the firmwares compared to yours? Is it basically the same stuff, just with out the specific GTR can stuff?
    328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
    9.20 at 150 on 22psi

  25. #1400
    Join Date
    Jul 2005
    Location
    PEI, Canada
    Posts
    2,817
    My Cars
    2001 330i
    Quote Originally Posted by dburt86 View Post
    I had my first M1 tuning experience on a GTR this past week, i was able to fumble my way around to get the car running decent, but def not a full tune by any means. That stuff is so sick. A little hard to navigate initially but its badass.

    How much different are the firmwares compared to yours? Is it basically the same stuff, just with out the specific GTR can stuff?
    They are different.

    The GTR stuff has quite a few less areas of adjustability, because Motec has locked that stuff in.

    Once you get used to the window structure though, it's pretty easy to navigate.

    A big thing that Motec has going for it, is that EVERY single item has a help menu attached to it. (Just click on it, and hit F1) Then if you click on the highlighted subcategory on the bottom of that window, it takes you into a full scale user manual.

    On my current custom package, I think I have 82 Tuning windows. (Drop-down tabs on the left) I probably use 10 of those on a regular basis though.....

    To really get the most out of what Motec has put into this system, you really need to get on a load-bearing chassis dyno to tune the fuel film stuff.

Page 56 of 62 FirstFirst ... 6314647484950515253545556575859606162 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •