Ahhhh....all this talk about MAF and SD systems. Here's what ya do:
Rip the damn confuser (Computer) out of the truck, throw a 426 Hemi in there
along with a Holley Projection system and you're all set. No more Mr. Nice
Guy. ;)
On a more serious note, the MAF systems on the old Fords (Yes...5.0's...)
were rather easy to tweak. The SD systems really sucked to mess with and we
always changed them over. Wonder why Dodge didn't do this. (Blowers work
MUCH better on a MAF system anyway.)
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Jon Steiger
Sent: Monday, February 14, 2000 7:51 PM
To: dakota-truck@buffnet.net
Subject: Re: DML: Speed Density to MAF
On Mon, 14 Feb 2000 ABeerCan@aol.com wrote:
While its true that doing mods with a speed density system won't
allow you to reach the engine's full potential, the same can be said of
a MAF system. The "problem" in both systems is the computer. Without
the ability to directly muck about in the computer, neither system will
allow you to reach full potential.
For what its worth, all of the aftermarket EFI systems I have looked
at use speed density. I won't pretend to know why that is, but I
suspect its because speed density is more simple than the MAF setup.
The limitation in speed density is due to not being able to change
the parameters in the computer, but with the aftermarket setups,
that is no longer an issue. MAF should respond better to mods
within a certain range, but go outside of that range, and you're
in the same boat as the speed density folks; you need to mess with
the computer. There's another version of EFI also; I can't think
of the name for it at the moment though. Its basically speed density,
but without the MAP sensor. Its mainly used on wild engines which
can't maintain enough vacuum at idle for proper MAP readings.
-Jon-
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