FW: Bigger injectors & AFM?

[mrvette]

Hang a DVM on the O2 sensor....if it is at .98xx volts and stays there at
WOT,....do this on a freeway,....OK....if it does not, it's lean....
closer to .1 volt the leaner it is....it should of course slowly oscillate
between .1 and .8-.9 or so at idle....and at normal cruise on flat road....GENE

Murphy, Thomas - One NY wrote:
> 
>         Hello EFI Experts!      I have a hot BMW engine set up as follows: an m20 2.5 liter,
> stroked and bored to 2.8, hi-compression, forged pistons, ported head, 272 cam, exhaust, K&N, etc.
>         My question is, I think I am running lean at WOT, and am wondering if bigger injectors are
> the way to go.  My idea is to get injectors from a similar motronic version, from the 3.5 liter M30 engine,
> and maybe the AFM also.  This would be prior to getting a custom chip.  Some folks have suggested
> a higher pressure fuel regulator, but other people say not.  If I get the bigger AFM, would I need the
> ECU along with it?  Any advise is appreciated!          Murf            '87 328is