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M-Series (M1, M3, M5, M6) General M-Series Discussion - If it does not fit into a more specific M Category above, please place it in here. In addition, previously archived M-Series discussion is located in this section.

 
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#1 (permalink) Old 06-20-2005, 09:23 AM
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I recently purchased my first bmw and its a 95 m3. I went from building some crazy VW's to this. my research has come to nothing. while looking at chip options I keep running accross HFM....for 95 only what is it and what do it mean. its obviously something thats ecu related, atleast thats what im getting out of it. hopefully someone can help thanks....Keith

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#2 (permalink) Old 06-20-2005, 12:31 PM
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im not posotive what ur question is but i think u are asking about the ECU, in cars up to 1995 with the ECU they used a system known as OBDI anything after 1995 they use a system called OBDII. with OBDI systems you can physicly buy a computer chip and put it into the ECU unit (very simple and nice ) with the OBDII system you have to by a system to plug into the ECU that will reprogram your system for the new fuel managment and such from what i hear this is slighty bigger pain in the ass and what not. i hope this answeres your question!

On a side note, what sort of VW's were u buildin'?

-Hutch-

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<span style='color:red'>Life is not a journey to the grave with the intention of arriving safely in a well preserved body. But rather to skid in broadside, thoroughly used up, totaly work out, loudly proclaiming &quot;Wow! What a ride!!&quot;.</span>

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#3 (permalink) Old 06-20-2005, 05:57 PM
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no no im aware of the obd issue. HFM has something to do with the tnning im for sure because when i look at performance chips i see an option for HFM on 94-95 m3's, i.e. OBDI only apperently theres a regular M3 and an HFM M3. now of course i could be lookoing at this all wrong. I previously built an all motor corrado slc which was pretty crazy a mki rabbit with an OBDI 2.0 8v and my last was an Built mkIII jetta with a full turbo setup and built motor with lots of interior goodies. but im done with VW I dont think i could ever own another fwd again. it awd or rwd for me. I tryed to load some pics but they wouldnt take my format. "gif"........Keith

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#4 (permalink) Old 06-22-2005, 03:03 AM
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HFM, High Flow Meter, its just a bigger intake area. Sometimes are Euro or 540 HFM

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#5 (permalink) Old 06-22-2005, 08:39 AM
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Thanks, that halps a bunch....here are some pics of my last vw and now new to me, my m3




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#6 (permalink) Old 06-22-2005, 12:34 PM
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nice lookin cars sorry i couldnt help with the question haha. that VW must have been a blast but i do agree with u about FWD haha keep us posted on the new M!

-Hutch-

<span style='color:red'>Life is not a journey to the grave with the intention of arriving safely in a well preserved body. But rather to skid in broadside, thoroughly used up, totaly work out, loudly proclaiming &quot;Wow! What a ride!!&quot;.</span>

<span style='color:blue'>If life passes you by......downshift</span>
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