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Aug 28, 2009 | 02:29 AM

#16

johnboy427

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Joined: Jan 2005

Posts: 1,299

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From: The Vieux Ford, Kansas

Exhaust gas temperature. More common to hear the diesel guys talk about it.
-Johnboy

Aug 28, 2009 | 04:16 AM

#17

lew52

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Thanks Johnboy , thats what i wanted to know . I have had a few 5.0 stangs & now the truck & have not had any problems with the 302 yet....

Aug 28, 2009 | 12:30 PM

#18

Mustang6147

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Joined: Mar 2007

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I am amazed.... Everyone I know uses EGT in racing??? MAybe that is why some posts by people, I look at scratch my head, and figure them to be malicious.

Honestly... you guys dont use EGT when racing???

Here is examples... A rich engine, burns hot = High egt

Timing to far adavnced burns hot = high egt

A nitrous engine with to little fuel (lean), burns hot = High EGT

Does that make sense??

Here is 1 example. many mfg make them,

Percy's High Performance 55140 - Percy's Digital Exhaust Temperature Indicators

<FIELDSET class=item-disclose><LEGEND>View Image and Compare</LEGEND>

<INPUT id=compareCheck_PHP-55140 onclick="javascript:compare( 'PHP-55140', 'toggle', this );" type=checkbox name=Compare><LABEL style="DISPLAY: inline" id=labelText_PHP-55140 for=compareCheck_PHP-55140>Compare</LABEL>

</FIELDSET>
Digital Exhaust Temperature Indicator, 1/4 in. Clamp-On Probe, 6 ft. Cable, LCD Readout, Kit
Part Number: PHP-55140

Aug 28, 2009 | 01:49 PM

#19

johnboy427

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Joined: Jan 2005

Posts: 1,299

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From: The Vieux Ford, Kansas

Um actually lean engines burn hot thats why the fry exhaust valves and pistons. This is why running rich is better than running lean.
-Johnboy

Aug 28, 2009 | 01:54 PM

#20

Mustang6147

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Joined: Mar 2007

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Your statement is only true part of the time, That is why a rich condition, is used to warm an engine up... But that has to deal with fuel atomization... that is why in reffrence, I used both, cuz lean causing heat with nitrous, will cause a melt down or catstrophic failure.

If you look at the bottom paragraph in the percy part link, it also mentions that... It is tricky, and that is why your on, or your not... But to many say, thats good, or thats close. The old saying... this isnt horseshoes, or handgernades.

Aug 28, 2009 | 02:34 PM

#21

lew52

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Joined: Jan 2009

Posts: 4,558

Likes: 2

Quote:

Originally Posted by Mustang6147

<INPUT id=compareCheck_PHP-55140 onclick="javascript:compare( 'PHP-55140', 'toggle', this );" type=checkbox name=Compare><LABEL id=labelText_PHP-55140 style="DISPLAY: inline" for=compareCheck_PHP-55140>Compare</LABEL>

</FIELDSET>
Digital Exhaust Temperature Indicator, 1/4 in. Clamp-On Probe, 6 ft. Cable, LCD Readout, Kit
Part Number: PHP-55140

....Yeah i think most people on this forum have mostly stock trucks & don't race much . I go to the track a few times a year with my truck but its a street strip truck , the rest of the time im on the street , never used one , i use a fuel press gauge & a LC-1 wideband to moniter my truck , & keep a good eye on the plugs . One thing that supprized me was on another post you didn't know that a truck has a carrier bearing ??? Scratching my head ??? ... Lew

Aug 28, 2009 | 02:43 PM

#22

Mustang6147

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Joined: Mar 2007

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actually... To be exact, I didnt realize the truck was a crew cab, with a 2 peice drive shaft... My ex cab does not have a carrier bearing, the last time I had to deal with one was on my 1976 scottsdale back in highschool LOL some where between here and there, they went to 1 peice drivshafts.

That was the only truck to this day, I have owned with a carrier bearing LOL.

I ran into this last night, while working on a buddys motor home, (race this weekend) Last weekend he was out, and got the eye opening death shake from his steering wheel. I said oh well your steering stabilizer must have failed... We looked, No such animal, and never had one. Seems it was after his 1 ton chassis was made, did they start useing them... It is what we where told this morning anyhow. I, although still remember seeing a stabilizer on the old Winnabago Chassis so?? Ya learn somethin new every day I guess...

Aug 28, 2009 | 03:12 PM

#23

lew52

Postmaster

Joined: Jan 2009

Posts: 4,558

Likes: 2

Yeah lean condition & nitrous is no good , thats why a LC-1 wideband & fuel press gauge is a must for nitrous , then you know what your air fuel mixture is & can tell if its to lean , you also need a way to retard your timing , MSD timing box , a RPM window switch helps to & a fuel press switch ...

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Aug 28, 2009 | 04:17 PM

#24

Conanski

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Joined: Jun 2006

Posts: 31,930

Likes: 1,499

From: Ottawa, Ontario

EGT's are popular with the snowmobile crowd around here, can't use an O2 sensor on a 2-stroke because it would foul too quickly. But for a 4-stroke gasoline engine a wideband O2 is the way to go since it displays the A/F ratio directly.. no guessing.