730 Pump Shot

Squash realsquash at yahoo.com
Sun Oct 15 01:18:55 GMT 2000


FYI i'm pulling 55-60 kpa it idle (fluctuates a bit) and it is idling at 800 very well in closed
loop.  The INT moves up and down about 10 points, but usually never enough to change the BLM. 
Flatening the VE around idle seems to have helped that.

Squash

--- Bruce Plecan <nacelp at bright.net> wrote:
> 
> In round numbers  0K/Pa = o volts, 100 K/Pa = 5 volts, or at least this
> works out close enough for figuring out where you're at fo doin it in your
> head.
> 
> Your 2.5 would be about 50 K/Pa.
> Big troublesome cams get to 55-60 K/Pa idle readings, and then you get to
> test you patience with some of these.
> Most about everything will settle in to 40 K/Pa range for light cruise
> conditions,  thou that can get tweaked.
> Bruce
> 
> 
> 
> 
> 
> From: "David Tuschhoff" <davidlt at i-55.com>
> Subject: Re: 730 Pump Shot
> > > Apples to oranges ... depends on how much vacuum your current setup
> pulls
> > > at idle.  Example - swapping the 218/224 cam into my car caused the
> vacuum
> > > to change to 50-55kpa at idle.  Thus, the vacuum difference between WOT
> >                     ^^^^^^^^^^^^^^^^^^^^^
> 
> > This is what I am trying to figure out.  Is there a coversion table for
> the
> > MAP?  My scanner shows voltage on the sensor.....so how do I figure the
> kpa
> > at that particular voltage.  Tim, I believe I am using the next step up in
> > cams(224/230) from yours, and I see about 2.5volts at idle.  I do notice
> > that it does go down while cruising though.
> > Later,
> > David
> 
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=====
Trains, Trucks, and EFI at http://www.trailrunners4x4.org/users/realsquash

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