BMW fuel injection
ste...@tekig.uucp
I have a '71 2800CS with the dual Zenith carbs and am toying with the
idea of ripping them out and substituting a fuel injection
system off a later model 530i. They have the same heads, transmission, etc
so the only problem (besides wiring and locating the unit) that I can see
is that, although they use the same block, the 530i has 200cc's more of
displacement. Now the question.. Is this idea going to work?.
The fuel injection has an air flow sensor to help it meter the fuel/cyl
and I'm wondering if that can go ahead and compensate for the displacement
difference at both the high and low end. Anybody out there done something
similar or know somebody that has?
Thanks,
Steve Lyford Tektronix
...!tektronix!tekig!stevel
Ken Serack
WHY??????
This would be an ALMOST (notice I said almost) impossible feat.
Have you ever looked at a
fuel injected 530i. The wiring goes everywhere, You would need a new
fuel-pump, All of the emmission control stuff is tied into the fuel
metering systems -- so you would have to add or upgrade, your
distributor probably has the wrong advance curve, and others. Also,
have you priced a complete fuel system from a wrecking yard. If you
can find a yard that will sell you a COMPLETE system, it will probably
be spendy. But I doubt that you will find anyone that will sell you a
fuel system, without buying the whole car (which is not a bad idea for
this project).
Why not spend some of that money and put a really good set of carbs
on in place of the solexes. There are a number of setups available
ranging from dual down-draft weber 2-barrels to triple side-draft
webers. When I had my 530i, my plan was to scrap the fuel system and
put the triple webers on, because the fuel system is a compromise
system to bring the emmissions into range. The performance (and in
some cases fuel efficiency) increase is phenomenal. The webers are
very nice to maintain and adjust.
If you are interested, I can send you a copy of some catalogs that
carry these products. I would also be happy to talk with you about
BMW's and I can also steer you to some people that know a lot about
these things.
Ken Serack
tekecs!kens