----- Original Message -----
Sent: Friday, October 26, 2007 6:26
PM
Subject: [FlyRotary] Re: MAP port
location
Ed,
The ports in the renesis lower manifold are at the
primary and secondary runner join. The stock upper renesis manifold also has
other ports as well. Not sure what they are for in the car. I need to get the
shop manual out and do a little research.
Bobby
It'll work just about at any location. But, you
generally want a location that will reflect the total engine condition rather
than say one runner. Besides there are some fairly substantial pulsation
in the runners. I prefer to have the sensor in the plenum immediately
after the throttle body, but out of the way of the air flow at this point the
pressure changes in your plenum probably reflect the over all (average) of
what is going on in your runners. The pressure wave travels at the speed
of sound whereas the air mass travels less than 400 ft/sec (much less in most
cases), so where ever you put the sensor - even down my the ports, it won't
matter timing wise.
However, a location where the pulsation are damped is
where I would put it. In the plenum after the throttle body and out of
the direct air flow path. On the other hand, I have used the ports on
the stock lower manifold (tying together the primary and secondary ports with
a "T" so as to better get an average).
Some folks have used a dense air filter/fuel filter? to
damp out the pulsation, so if you are going to run your manifold like off a
tube near a port, that is what I would try as well.
Ed
Ed
----- Original Message -----
Sent: Friday, October 26, 2007 10:49
AM
Subject: [FlyRotary] MAP port
location
What is the best location for MAP ports on the
intake. Close to the engine or further away? I have the modified Renesis
lower manifold that has two ports installed. Are these the best
locations for the EC2 or should I
place new ones further back in the upper manifold?
Thanks,
Bobby J
Hughes
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