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Old March 21st, 2008, 04:50 PM   #21
Hacksaw
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Originally Posted by InBBA View Post
did both of you drill and tap your own EGT ports?

I'm pretty leary of the drilling portion of the project.
dip drill bit in wheel bearing grease just before it goes through the manifold. Put a big magnet right next to where you are drilling. Put small magnet in hole and move around after drilling..

I did mine about 20K ago with no issues.
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Old March 21st, 2008, 08:53 PM   #22
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Roger that, what he said.

Drivers side, towards the back is a nice straight shot up.

The grease thing is not a bad idea, but don't worry about any chips that are
left. They won't hurt a thing.

Read the directions and make sure the probe is at the right depth for the most accurate readings.

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Old March 21st, 2008, 09:22 PM   #23
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Highway at best with my 02 F250 7.3 or my 02 EX 7.3 both 4wd.

Both stock with syn oil in the EX now.

That requires a light foot though and keeping it below 70.

I plan on a exhaust, and chip possibly an intake the more that I read about it. And of course a ex pyrometer if you are going to run a chip.
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Old March 22nd, 2008, 12:27 AM   #24
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Originally Posted by bigcountrysg View Post
First off Ggg how do you keep it below 600 degrees on the pyro. At crusing speed of 70mph my pyro reads 800 degrees. There really is no way to keep the pyro below 600 unless you are ideling.
.
I have no problem driving 65-67 mph and keeping my EGT's at or just below 600*. So long as it is fairly flat and i am not bucking a headwind, it sounds like others agree too. Now granted, at times I am in a hurry and I drive faster, or there is a good stiff headwind, so EGT's and mpg be damned. With my tire size and gearing 70mph puts me at 2100 rpm and usually above 600* so thats too high for the best economy. My truck is a 00 F350 RC 4x4, auto, tire size is 265/85-16 , stock height, and my gearing is 3.73. One would think with my mods (BTS, injectors, fuel system, intake, exhaust, chip, etc, etc. that my EGT's would be high especially since the turbo is stock right now and I am running big injectors,but they are very close to stock EGT's.The truck with me in it weighs #7280 in the summer and 8780 +- in the winter with ballast and plow attached. My pyro is pre turbo in the left manifold immediately before the collector donut gasket. Given a minute or two at idle my truck will easily idle below 300* in summer or winter. Very similar EGT temps and mph applies to my 96 PSD F250. IMO if you are getting EGT readings as high as 600* @ idle for several minutes, then I would suspect a faulty EGT gage.
I never said or implied driving at or below 600* for max economy is easy, it takes a lot of will power at times.
bigcountrysg what truck do you have? I saw your tire size and gearing, and your profile only lists a Jeep and an F150. If you have a Duramax or Cummins then the EGT readings might be a little different but yours seem a bit high.
Even comparing mpg figures from an OBS 7.3 PSD to a SD 7.3 PSD are usually 2 mpg different, and like you eluded to the 6.0 is another animal all together.

Last edited by Ggg; March 22nd, 2008 at 10:44 AM.
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Old March 27th, 2008, 10:35 AM   #25
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Well no big mods yet. I put a new air filter in,and fuel filter. I also am using power service cetane boost/lubricant. I have noticed a couple mile to the gallon improvement. I am just debating on programmer or exhaust next?
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