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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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Old 10-15-2004, 01:53 PM   #1 (permalink)
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Car 1997 M3 Stock under the hood with a UUC system U

So I have decided that I am going to do some power upgrades this winter. I would like you guys to give me some help ideas or whatever else you may have.

So far these are the options I am looking at:

Supercharger - Undecided kit will look into if I decide to go this route.


OBD1 conversion- Can anyone give me a guesstimate of what kind of HP can be produced with this conversion. I really cant find too much information on it.


Anyother sugguestions you guys may have?
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Old 10-15-2004, 06:17 PM   #2 (permalink)
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http://www.zionsvilleautosport.com/store/s...egory_Code=OBDC

25+ hp increase
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Old 10-17-2004, 11:29 AM   #3 (permalink)
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Quote:
Originally posted by BMWL2@Oct 15 2004, 08:53 PM
OBD1 conversion- Can anyone give me a guesstimate of what kind of HP can be produced with this conversion. I really cant find too much information on it.
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Ask Jllphan for more about that! Probably there's a thread about that in the technical forum or FAQ.
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Old 10-17-2004, 02:48 PM   #4 (permalink)
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Dont wate your time on OBD1, unless you dont have emissions tests and have lots of money to drop.
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Old 10-17-2004, 02:52 PM   #5 (permalink)
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Swap the m50 manifold and there are the power gains. Changing to OBD 1 is illegal, so you might have a hard time registering your car. Can I ask why you want to Converto to OBD1 ?

If you really wanted OBD1 You shoud have bought a 95 M3
* sorry if it sounds a little mean just kind of stating a point. *
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Old 10-18-2004, 06:13 PM   #6 (permalink)
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My car is already registered, and I dont have emissions. Converting to OBDI gives me the ability to gain more power from N/A addons. Plus it frees up the lost HP from being OBDII.

It is also a good amount less than buying a supercharger/turbo kit.

If I wanted a 95 I would have bought a 95.



Quote:
Originally posted by ///M3 FX@Oct 17 2004, 02:52 PM
Swap the m50 manifold and there are the power gains. Changing to OBD 1 is illegal, so you might have a hard time registering your car. Can I ask why you want to Converto to OBD1 ?

If you really wanted OBD1 You shoud have bought a 95 M3
* sorry if it sounds a little mean just kind of stating a point. *
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Old 10-18-2004, 09:00 PM   #7 (permalink)
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He says it better then I could ,

"OBDII doesn't restrict gains. Intakes and exhaust make the same power OBDI vs OBDII. The track pipe isn't an OBDI/II issue at all. 96+ cars came with better flowing center sections as compared to 95's.

My car makes 235/221 with intake/exhaust/crank pulley/m50. Show me an OBDI 3.0 or 3.2 with similar mods making more power. OBDI/II doesn't matter anymore."

Not only is it a PITA to convert its going to cost you $1000+ in tools and parts. Like I said above its ILLEGAL

also just because your car is already registered doesnt mean they cant inspect it. Ive heard it done before.

thats my o2
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Old 11-01-2004, 12:23 PM   #8 (permalink)
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Hey fellas, new to the board. Can you tell me where I can buy or what I need to convert my OBDII 97 M3 intake to the M50 intake manifold, besides the intake. I already have the intake manifold, just need to know the supporting hardware.. Can I do it myself, or do I need to buy a kit like the one M3 Motorwerkes sells? Does anyone else sell he kit?

Thanks in advance!

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