phillip wrote:

Where is the best (most accurate) location to place the EGT

probe(s) on

a turbocharged engine?

Thanks
Phil Williamson
Oregon City, Or

Ok, well I guess no-one will answer your question Phil. The best place

to get

EGT indications is obviously in front of the turbo so you wont see
indications of how much work the turbo is doing. Having said that it

is

difficult to get a location on the turbo rotary because of the

manifold to

turbo connection. I have chosen to build a different manifold for my
installation using exhaust flanges and a header style exhaust to turbo
flange. I will tap into the tubes prior to the turbo. This is only to
increase the accuracy for the adjustments  using Tracy's fuel

injection

computer.

If this is not an option of building a set up for yourself then any

location

aft of the turbo will at least yield some egt indications. If you

chose to

use the stock turbo I will warn you that the egt's will be excessivly

high

with even the mildest boost at altitude. The reason being is that the

turbo

will be revving very high for output demanded!

Not sure who answered this, but thanks. :) I'll assume this applies to
both rotary and "normal" engine. I read this newsletter for a few
reasons, one is to get a leg up on the aviation based rotary, another is
because a few (well, maybe most) here have racing backgrounds, so I'm
hoping to tap that resource as well. :)

The turbo motor in this case is a 2 liter Ford Zetec in my ZX3. I should
have made that clear. Sorry. Anyhow, I ordered EGT probes (and gauges)
from Aircraft Spruce to use in my car. I figure what the heck...If they
work in the air, should be fine on the ground. I have easy access to the
header tubes anywhere (within the first 4 inches of the exhaust ports)
on each of the 4 tubes. With the Pectel, I can control fuel and timing
on each cylinder so I figure 4 egt's would be best.

Paul,

   If you would rather keep auto type questions off your system, just
say the word. :)

Thanks
Phil Williamson
Oregon City, Or

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