How to increase throttle response?

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  • Liam
    Mod Crazy
    • Mar 2009
    • 753

    #76
    Originally posted by PiercedE30
    Shoot, should've gotten the W.A.R. chips with it.

    W.A.R. chip = the BMW equivalent to Hondata (from what I have gathered from the BF.c Forced Induction forum)
    Worked out a deal on this, I've been talking to Miller for a while now (I may become an outlet for these as well if they do what they are supposed to).
    I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃xS : φ(x)) → (∀xS : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".

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    • Naplm00
      E30 Mastermind
      • Nov 2008
      • 1573

      #77
      subscribed...

      Liam...let us know whats up

      I hate my AFM and would love to replace it
      88 325ic ~~~> Rusty and ugly
      85 E ~~~> RIP

      Comment

      • Liam
        Mod Crazy
        • Mar 2009
        • 753

        #78
        Originally posted by Naplm00
        subscribed...

        Liam...let us know whats up

        I hate my AFM and would love to replace it
        I have heard that these are the cat's meow but I need to find out for myself bofore I jump into bed with them.

        I'll probably will have it all looked over in the next couple of weeks.
        I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃xS : φ(x)) → (∀xS : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".

        Comment

        • Moto-Mucci
          R3VLimited
          • Oct 2008
          • 2058

          #79
          I hope your going to have some before/after dyno graphs for us.

          Comment

          • Liam
            Mod Crazy
            • Mar 2009
            • 753

            #80
            Originally posted by Mucci
            I hope your going to have some before/after dyno graphs for us.
            Probably not, I don't have my own dyno and have to drive way to hell and gone to borrow my buddies.

            Not a lot of point in spending a bunch of resources on these old ones, maybe latter down the road though if the opportunity is there.
            Last edited by Liam; 05-03-2009, 06:37 PM. Reason: clarified
            I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃xS : φ(x)) → (∀xS : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".

            Comment

            • Adrian_Visser
              R3VLimited
              • Jun 2006
              • 2823

              #81
              my cammed 2.5l m20 hasa pretty bad off idle stumble too especially when cold, since it was cammed before i got it i've never been sure if it was because of the cam or a problem with the engine

              '89 Alpine S52 with goodies

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              • downernsp
                E30 Mastermind
                • Mar 2008
                • 1932

                #82
                Let's make this an easy answer: afm is mechanical vs. maf is digital,and that in it self is a difference,throttle response, one can't argue that as far as the horsepower one will gain? I say put it in do a dyno test.Then you will have paper work in had for proof rather than get 10+ different answers which all can't be correct, and I have heard all good things not one thing bad from the people that have used it.
                Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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                • Liam
                  Mod Crazy
                  • Mar 2009
                  • 753

                  #83
                  So it took about 30 minutes to install (probably an hour and a half without a full shop and many years experience doing this kind of thing).



                  The AFM this replaced was about 6 months and 1000 miles old. Everything on this engine is pretty much 100% fresh.

                  Right off the bat, definite improvement. Smoother idle and no bounce when the throttle gets "tapped" in overall drive-ability there is a very noticeable improvement in throttle response and the subjective ass dyno tells me that it's gained some torque and a wider power band.
                  I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃xS : φ(x)) → (∀xS : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".

                  Comment

                  • guibo09
                    E30 Modder
                    • Dec 2008
                    • 834

                    #84
                    so liam, what now? what are you gonna test?
                    90 E30 325i

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                    • Wh33lhop
                      R3V OG
                      • Feb 2009
                      • 11705

                      #85
                      Originally posted by downernsp
                      Let's make this an easy answer: afm is mechanical vs. maf is digital
                      A MAF is not necessarily digital. I think you mean electronic vs. mechanical.

                      Somewhere on down the line it becomes converted to a digital signal, but so does an AFM.
                      paint sucks

                      Comment

                      • Liam
                        Mod Crazy
                        • Mar 2009
                        • 753

                        #86
                        Originally posted by guibo09
                        so liam, what now? what are you gonna test?
                        I only tossed it in this afternoon and drove it to get coffee.

                        I keep pretty tight records on this car so after a little while I'll have information on general fuel economy and more (albeit subjective) information from driving it in different conditions.

                        And yes, if I get a chance, I'll run it on the dyno and then will have some comparison from the last time we ran the car with the AFM.

                        After that... I have some evil plans (it'll be a while though).
                        I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃xS : φ(x)) → (∀xS : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".

                        Comment

                        • CorvallisBMW
                          Long Schlong Longhammer
                          • Feb 2005
                          • 13039

                          #87
                          Originally posted by Liam
                          Right off the bat, definite improvement. Smoother idle and no bounce when the throttle gets "tapped" in overall drive-ability there is a very noticeable improvement in throttle response and the subjective ass dyno tells me that it's gained some torque and a wider power band.
                          Good info, thanks for sharing. Did the car already have a performance chip? Are you running larger injectors or any other little bolt-ons?

                          Comment

                          • Liam
                            Mod Crazy
                            • Mar 2009
                            • 753

                            #88
                            Originally posted by CorvallisBMW
                            Good info, thanks for sharing. Did the car already have a performance chip? Are you running larger injectors or any other little bolt-ons?
                            Well yes.

                            It is not "stock" an awful lot of things have been changed not necessarily just bolt on stuff either, it was dialed in on the dyno prior to this being slapped in.
                            I'm Not Right in the Head | Random Rants and other Nonsense1st Order Logic Failure: Association fallacy, this type of fallacy can be expressed as (∃xS : φ(x)) → (∀xS : φ(x)), meaning "if there exists any x in the set S so that a property φ is true for x, then for all x in S the property φ must be true".

                            Comment

                            • CorvallisBMW
                              Long Schlong Longhammer
                              • Feb 2005
                              • 13039

                              #89
                              Originally posted by Liam
                              Well yes.

                              It is not "stock" an awful lot of things have been changed not necessarily just bolt on stuff either, it was dialed in on the dyno prior to this being slapped in.
                              such as?

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                              • optimusp517
                                Mod Crazy
                                • Oct 2005
                                • 797

                                #90
                                I just saw this, was thinking about it, but guess I don't really need it. I wouldn't mind a flywheel honestly. The car doesn't rev as fast as I want like my 350z does. :(
                                sigpic

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