LT1 plenum update

Shannen Durphey Shannen at grolen.com
Tue Jan 16 19:24:49 GMT 2001


rahmrh at cableone.net wrote:

> Bigger capacitor.   I am also a EE, It did not occur to me
> that the intake was acting as a capacitor.   I would think
> it would be more of an issue in lower MAP pressures (ie idle
> and part throttle).   I guess it would be interesting to
> have a map sensors that worked at higher frequencies 

Woah..  What do you mean "works at" higher frequencies?  You should tie a
scope to the map signal line.  Believe me, the readings you see on the
scan tool are much more tame.

> so
> you could see if the pressures was changing substantially
> over a engine cycle.
On a 4 cyl, you can watch intake pressures "bounce" when an intake valve
closes.

Shannen
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