War Chip Forums

Please login or register.

Login with username, password and session length
Advanced search  

Author Topic: M50 Crackle Tune  (Read 2552 times)

Devildude24

  • Newbie
  • *
  • Karma: +1/-0
  • Posts: 4
  • Car: 1995 BMW 325i
    • View Profile
M50 Crackle Tune
« on: February 26, 2017, 01:32:53 PM »

Hey all,

I'm trying to make an M50 crackle tune but honestly have no idea how to retard my timing in no throttle conditions. What I mean by crackle tune is (since I'm decatted) retarding the timing when there's no throttle input to the extent that the fuel ignites in the exhaust and creates a popping/burbling/crackling noise.

I'll try out a tune that I made and see what happens, but it may also create a loss of power in P/T so I have no idea.

Let's see what happens.
Logged

Devildude24

  • Newbie
  • *
  • Karma: +1/-0
  • Posts: 4
  • Car: 1995 BMW 325i
    • View Profile
Re: M50 Crackle Tune
« Reply #1 on: February 28, 2017, 09:16:33 AM »

FINISHED -

The M50 Crackle Tune is now finished after 4 days of work. I've attached it to this reply.

Now, I drive a manual so the fuel cutoff usually stops it from crackling, however there's a sweet spot just off "off-throttle" that makes it sound like a machine gun. Just be careful if you use this tune. If you make it crackle too much and too often, it can burn your exhaust valves. I usually do it only when decelerating at lights and on the highway. Between each "crackle session," give your exhaust valves and manifolds time to cool off. This tune gives it more fuel during off-throttle conditions, as well as retards the timing a considerable amount.

YOU MUST RUN 93 OCTANE WITH THIS TUNE.

Thank you for reading, and have a great day!

Yours in BMW,
Johnny Redline
Logged

Crankdat

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 2
  • Car: 1994 325IS
    • View Profile
Re: M50 Crackle Tune
« Reply #2 on: February 28, 2017, 10:07:18 AM »

Can we get a video on this and is it similar to the rk tunes burble tune.
Logged

Devildude24

  • Newbie
  • *
  • Karma: +1/-0
  • Posts: 4
  • Car: 1995 BMW 325i
    • View Profile
Re: M50 Crackle Tune
« Reply #3 on: February 28, 2017, 11:02:33 AM »

I will upload a video to YouTube and link it here when I get the chance. And I'm not exactly sure. It burbles normally for me on the "stock" 93 octane tune from the tune cache, but of course I'm decatted. It's more of a crackle, sort of like a combination of machine guns and fireworks.
Logged

Grimchan

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 4
  • Car: E36 318ti m50 vanos swapped
    • View Profile
Re: M50 Crackle Tune
« Reply #4 on: June 21, 2019, 09:13:45 AM »

Wheres that link? I want to see this in action. Please😂😂
Logged

Grimchan

  • Newbie
  • *
  • Karma: +0/-0
  • Posts: 4
  • Car: E36 318ti m50 vanos swapped
    • View Profile
Re: M50 Crackle Tune
« Reply #5 on: August 25, 2019, 10:01:52 AM »

Good tune. I had to modify it alittle bit. The unnecessary stuff i got went back to what it was suppose to be. Other than that, its good.👌👌
Logged