From dale_at_unofficialbmw.com Sun Aug 2 10:02:44 1998
Sun, 2 Aug 1998 10:02:43 -0700 (PDT)
From: Dale Beuning <dale_at_unofficialbmw.com>
Sun, 2 Aug 1998 09:55:17 -0700 (PDT)
>Subject: Re: E30 - M3 Cams and exhaust
To: MeucciM3_at_aol.com
Date: Sun, 2 Aug 1998 09:55:16 -0700 (PDT)
Cc: dale_at_unofficialbmw.com ()

Hi,
If you want more/different feedback, subscribe to the bmw digest www.digest.net/bmw.

Perf for an E30 M3:

1. JimC chip from www.turnermotorsport.com
2. new cam gear from www.turnermotorsport.com and others
3. aftermarket exhaust

Dont's:

1. don't disconnect the cat converter or the O2 sensor
2. don't mess with the FQS setting in your motronic
3. don't mess with the air flap pretension spring in the Air flow meger

You may open up the spark plug gap from around .028 to about .032 if you like. You may get a 0.1% increase in HP at the expense of shortened plug life.

Dale

> My 91 M3 needs some more fun factor added.
> Does any one have exp. with installing different cams on this engine. My car
> has the evo. itake cam and exhaust cam gear installed. 268* I think but no
> increase of lift?
> I've seen adds in Roundel for 276 and 306. Any body have any thoughts?
>
> Also, if the cats. are replaced by a euro. resonator should one disconnect the
> O2 sensor so as to run slightly richer? Any thoughts relating to above
> regarding the fuel adjusting switch in the motronic box - go to setting 1 or
> 2? I believe they increase fuel by 1.2% and 3.0% respectivly.
>
> Also, any ideas on increasing the spark plug gap. What are the effects on
> power? Are there any draw backs to increasing the gap?
>
> Thanks
>

--

                       |            Dale Beuning           |
                       |       email: dale_at_unofficialbmw.com     |
                       | web: http://www.unofficialbmw.com |
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