Engine/Transmission (1998.5 - 2002) what should my egt's be?

[dacook]

I have just installed my pyro and empty, WOT I can only get to 1100 or so. The hypertech is set on 3rd setting. Also the guage is not acting right. never zeros out when cold, needs a tap to get it to move at first.

Thanks for your help

David

 

[wtfd6]

hello dacook,



my truck at wot usually only hits 950 degrees. but then again i dont have any type of fueling box.



mark

 

[lil red cummins]

hi david,



not sure why you would want to get your gauge to go beyond 1100 and i can't really say that it is good or bad that it won't. did you mount the probe pre-turbo or post turbo? post turbo would display cooler temps. hopefully you should never see over 1100 post turbo.



the gauge should never go to zero,unless your truck sits outside overnight in 0 deg F temps. the normal low temp displayed on your gauge (after sitting overnight) should be whatever the ambient temp is. if its 70 in texas, then thats the lowest the gauge should read.



as far as having to tap the gauge, have you waited until getting up to say 35 mph before tapping the gauge, to see if it moves up on its own. it will not "jump" immediately after starting. it should move up slowly after about a minute to between 200 & 300 degreees (approx).



finally, was there a connection of the two thermocouple wires between the thermocouple and the wire leading to the gauge? if there were, you must use only the connectors provided by the manufacturer. if you were to add a crimp terminal or other connection device, or even add grease or corrosion inhibitors, you would alter the thermocouple accuracy.



hope this helps some.



jim

 

[JCutter]

Just be lucky that your egt are low. Ive got the HY turbo on my auto and the other day it hit 1690 :--) on the tst display. I believe its time for a bigger turbo. :-laf

 

[dacook]

Thanks yall for your replies. I was curious if all was working.

 

[claykelly]

Anyone else chiming in on this??



Just installed my TST PM Comp, setting 5, running empty, 1250 in a few seconds, setting 3 - easy 1100 or so... ... sounds high to me, but I'm not sure what to expect really.



Help?

 

[Beast2B]

Still depends on thermocouple location. If I remember correctly, it's something like 300* difference from pre- to post-turbo.

claykelly- EGT will climb quickly if you mash the go pedal from zero or low boost condition. lots of fuel, lots of smoke, quick EGT but they should peak or even drop as boost comes up and provides more air. With the stock turbo, anything over 34# of boost will start getting you beyond the efficiency 'map' of the HX35 and into a situation where more boost just equalds more EGT and LESS power!