405Mi-16 & 205GTi AFM's, is there a difference.
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  1. #1
    Fellow Frogger!
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    405Mi-16 & 205GTi AFM's, is there a difference.

    Hi all,

    I have an 87 Pug 205 Gti that I am making some minor mods to. I want to make a new induction path for the car as the standard item seems to long and the airbox can heat up to much positioned over the headers.

    I have noticed the most restrictive part of the system is the AFM throat.

    I have a plan to place the battery in the boot or get a dry cell , smaller battery and make some room behind the h/light.

    I would like to know if the 405 AFM is a larger internal diameter than the 205's, is it compatible to the 205 computer system, and an approximate cost if anyone knows.

    Thanking all in advance.

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    Cheers

    Chipper

  2. #2
    1000+ Posts PeterT's Avatar
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    The Mi16 AFM is also restrictive, but I'm not sure if they're the limiting factor. I run a Haltech on my Mi16, still with AFM fitted, and zero vacuum occurs way before full throttle. This indicates there is more volume there than the engine can use. I haven't seen one fitted, but apparently the GMH V6 throttle body is good fit on a 205. Adding a Haltech (or other MAP sensing computer) would allow you to delete the AFM and give plenty of scope for development.

    '92 205 Mi16
    '90 Mi16x4

  3. #3
    Fellow Frogger!
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    Peter T,

    Hmmmm....cheers for that.

    I guess I will just try to get a better air inlet set up for the moment.

    Save the Haltech for when the Mi-16 engine goes in the 205

    *** Chipper continues to dream ***


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