sequential efi on 440?

Frederic Breitwieser frederic.breitwieser at xephic.dynip.com
Fri Jan 30 04:06:18 GMT 1998


>  It has been my experience that cams with too much overlap don't like
>to idle at 14.7 afr,,,If you have a way to adjust your afr(closed loop)
>at say 1000 rpm and down, it can be taken care of,,,other wise you can
>run as large a cam as you want,,,One other note about large cams is they

Very true... you kinda have to decide whether you want low end, midrange,
or high RPMs, and gear the engine towards it.  Unless of course you can
afford the Indy F1 Pnuematic Valve system.  I wish.

Anyway, here is a suggestion... if you want extreme power, low mid and
high, consider putting the OEM cam back in, or a mild cam, and give a
supercharger or turbo a fair shake.  Even though the valves are open less
than with a high-overlap cam, the additional pressure will fill the
cylinders more than ambient air would.

I have a supercharger on my 3.8L V6 FWD Lincoln, and I have to say, it
*does* get out of its own way.  In fact, I believe Paxton has a 440 kit for
the Dodge Ram truck series... might be adaptable.

Sorry for the tangent, but I just wanted to make a suggestion :)


Frederic Breitwieser
Bridgeport, CT 06606
http://www.xephic.dynip.com/

1993 Supercharged Lincoln Continental
1989 4-Door Softtop Humvee (Hummer)
2000 Buick GTP (Mid-engine track car)

---



More information about the Diy_efi mailing list