An interesting day! NF/NG swap

[Ti Kan]

Huw Powell writes:
> you need an engine... the NF is the best choice, as you can use your
> existing intake manifold and CIS parts.
>
> the NG uses the funky IM, requiring it's "own" injection lines which
> were only used on the 87.5 cgt.  (ones from a 100 will probably be too
> long and end up looking fugly)

As I posted recently, the I5 2.3 NG with the 2-pc intake manifold is also
found on the 80/90 series in addition to the 87.5 CGT.

Moreover, there are two versions of the I5 2.3 NF engine.  The early ones
(used on 1987-88 5000 non-turbo) is as you describe -- "old" style manifold
and head.  However, 89-91 5K non-turbos have the new version of NF that
has the same style 2-pc manifold and head as the NG.

I propose we clarify this by calling the old style NF-1, and the newer
style NF-2.  For the purpose of engine swap into a 4Kq, the NF-1 is
the one desired.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
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