1996 E36 323 auto coupe tuning

Notices
 

Thread: 1996 E36 323 auto coupe tuning

Reply to Thread
Results 1 to 6 of 6
  1. 1996 E36 323 auto coupe tuning 
    #1
    Bimmer Fan
    Car Details
    Gaz J's Car Details
    Model of Car:
    323i
    Year of Manufacture:
    1995
    Transmission Type:
    Auto
    Car Body Type:
    Coupe
    Gaz J's Avatar
    Join Date
    Mar 2009
    Location
    Crewe
    Posts
    4
    Thanks
    3
    Thanked 0 Times in 0 Posts
    Hi All

    My 323 auto coupe has 105k miles on the clock - runs as smooth as anything i've driven and i'm not looking to keep it for very long (a year maybe 2). I've had it for about 3 months now but looking to make it a little more responsive/quicker. Since iv'e had the BM most of my friends up'd their game and got faster cars (as you do right? ;p) and on long cruises or general thrashes i'm going to be slightly out-matched

    Seat Leon Cupra R
    Honda Civic Type R
    BMW 330i

    I know 'buy a new car' may be the response of some but i love this car and would rather use my time getting to grips with increasing power gains and treat it as a project.

    So from what i already know the 323 is pretty much an air-starved 325 so inlet manifolds (off a 325) and a bigger bore throttle body should provide an extra 20bhp now an induction kit is apparently recommended and can yield upto 10bhp (seems high!! would like clarification) i have a PiperCross filter fitted at the moment but may replace that should an optimal recommended one be mentioned.

    For the exhaust i was thinking about fitting a 328 system, although with the vacuum actuator is that going to be counter-productive or after 3k revs will it not matter? does the 325 have the actuator installed or pay a more sizeable price for an M3 system? (is after-market worth buying as opposed to installing other BMW parts?)

    Also on the subject of after market kit, the M3 cams provide an additional 10/12bhp was wondering if anyone had changed these on a 323?

    So with these *minor* changes
    Inlet + exhaust restrictions: 170bhp -> 197bhp
    Induction kit: 197 -> 207bhp
    M3 Cams: 207 -> 219bhp (not minor change lmao)
    None power related
    Front strut brace for stability
    330 brake discs/calipers - have 18" rims
    after market dampers/coil springs

    Was also on the great Turbo OR Supercharger pondering, has any of you (or do you know anyone who has) done this for a 323? im very very tempted i love the whole underdog feeling, if i had a turbo i would but 316 badges on for a piss-take was wondering what sort of power-gains both provided and possible cost incursions of each option - also how well this particular engine responds to both.

    Also the most crucial thing is... is any of this worth it for an Automatic with no TC or am i better off spending 5k on an M3? although i wouldn't be interested in buying one for some years yet and i'm thinking more project and fun as opposed to anything else.

    Thanks for taking the time to read this and any feedback will be gratefully received
     
     

  2. Remove Advertisements
    BimmerForums.co.uk
    Advertisements
     

  3.  
    #2
    BMW Guru
    Car Details
    Ronnie's Car Details
    Model of Car:
    See above
    Year of Manufacture:
    Never too old, never too new
    Transmission Type:
    Always manual
    Car Body Type:
    Usually 5 doors
    Ronnie's Avatar
    Join Date
    Dec 2007
    Location
    Bournemouth, Dorset.
    Posts
    20,394
    Thanks
    6,198
    Thanked 7,051 Times in 5,322 Posts
    I will get straight to the point, I think it's pointless doing lots of work trying to get the car faster when you are running a autobox, ditch it and get a manual, manual conversions have been done on here a couple of times. This will make the car faster from pull away without even upping the power.

    Then tune it
     
     

  4. The Following User Says Thank You to Ronnie For This Useful Post:

    Gaz J (15-06-2009)

  5.  
    #3
    Administrator
    Car Details
    Ian S's Car Details
    Model of Car:
    M3 Evo, E60 530D, 911 C4S, Yaris T Sport
    Year of Manufacture:
    1996
    Transmission Type:
    Manual
    Car Body Type:
    Loon
    Ian S's Avatar
    Join Date
    Jun 2008
    Location
    Bristol
    Posts
    3,976
    Thanks
    2,149
    Thanked 2,257 Times in 1,727 Posts
    for doing your research.

    I'm with Ronnie, isn't the final drive ratio different on the auto's as well?

    As for the exhaust actuator, isn't that purely a noise thing? As long as it's not connected they remain open. The M3 doesn't have them either.

    IIRC the cams you want are from the US S50.

    The other thing I would say is not to get too carried away with peak power figures.

    Supercharging seems to be the easiest way to go on the 323. Kits are about £3k, if your interested I'll see what I can dig up for you.
     
     

  6. The Following User Says Thank You to Ian S For This Useful Post:

    Gaz J (15-06-2009)

  7. Remove Advertisements
    BimmerForums.co.uk
    Advertisements
     

  8.  
    #4
    Bimmer Fan
    Car Details
    Gaz J's Car Details
    Model of Car:
    323i
    Year of Manufacture:
    1995
    Transmission Type:
    Auto
    Car Body Type:
    Coupe
    Gaz J's Avatar
    Join Date
    Mar 2009
    Location
    Crewe
    Posts
    4
    Thanks
    3
    Thanked 0 Times in 0 Posts
    The vacuum actuator on the 328 uses one pipe for under 3k revs and opens at revs over that, on first starting the motor the engine warms up quicker, and after 3k revs it clears the exhaust more efectively. Also yes with one pipe under 3k revs the noise is a lot quieter.

    Manual conversions are roughly 2 grand (if i do the work myself?) i'm seriously tempted to keep this as a cruiser now and persuade my girlfriend to ditch her Astra for a 'fun' car

    Automatic is really crushing my soul
     
     

  9.  
    #5
    BMW Master
    Car Details
    hamish262001's Car Details
    Model of Car:
    328
    Year of Manufacture:
    1995
    Transmission Type:
    manual
    Car Body Type:
    touring

    Join Date
    Aug 2008
    Location
    Dublin
    Posts
    454
    Thanks
    77
    Thanked 98 Times in 85 Posts
    Yes very good research

    I have done most of those mods to my old 323 and 328 incl cams

    328 exhaust is good, cheap and easy mod leave the flap open.

    send alpina527 a PM for the manifold and BBTB

    USM3 cams are very nice on the 323 and make it a very rev happy motor with the other mods

    cant say the induction kit makes much difference other than sound - deffo not 10hp

    manual conversion if your doing it yourself would be cheap, not 2k there is a few lads on here that have done it

    if you keeping the auto or not i would add a diff ratio swap to your list as that will make a nice difference
     
     

  10. The Following User Says Thank You to hamish262001 For This Useful Post:

    Gaz J (15-06-2009)

  11.  
    #6
    Bimmer Fan
    Car Details
    Gaz J's Car Details
    Model of Car:
    323i
    Year of Manufacture:
    1995
    Transmission Type:
    Auto
    Car Body Type:
    Coupe
    Gaz J's Avatar
    Join Date
    Mar 2009
    Location
    Crewe
    Posts
    4
    Thanks
    3
    Thanked 0 Times in 0 Posts
    Thanks!

    Very imformative! well i wasn't going to touch it but seeing that post just persuaded me to start thinking about modifications again! (and because another 323 just started parking on our compound )

    If i'm not going to get hammered for the parts for a manual conversion i'd probably get it done, like mentioned before that instantly knocks 1 sec off 0-60, the induction kit granting 10bhp i thought was very weird but didn't want to underestimate an air starved engine. 1/2bhp sounds a lot more realistic (bigger the engine greater the gain)

    One thing i never mentioned before was free-flow fuel injectors i'd be changing to, as soon as i remove the air inlet plateau - the ability to burn the fuel quick enough will be the next barrier...although..
    Forgive my possible ignorance, basic BMW parts (suspension/injectors/coil springs) are already of a higher standard to say a Polo or Escort (previous cars) to which im not particularly familiar with and may not be 'up-rating' by fitting different parts?

    Sorry for the essay again boys, but i'm at work and as you may guess... i have free time
     
     

Tags for this Thread

View Tag Cloud

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