1. As important as it is to have a pryo gauge for diesels, why don't our $40,000+ trucks come with this from the factory?

2. Do our trucks go into limp mode if the EGT reach unsafe levels?
If so at what temperature?

3. Has any body seen any relationship to EGT temps with engine temp?
Example: EGT at 1200 / Engine Temp at 220

1. With a completely stock truck under max recomended load, EGTs should never get to the point of damageing anything. Pyro's are good if there are mods involved or you like to watch another guage go up and down.

2. Not that I'm aware of.

3. Yes and No. If you are running very high EGTs for a long time, that means you are creating a lot of heat and ECT may rise a little until either the fan comes to the rescue or you let off the throttle or change load conditions.

1. What he said.
2. Not that I'm aware of either.
3. EGT's and engine temp are not directly proportional. There is not a temp for one that points to a temp for the other. Ex. 400EGT is always 190Engine temp. EGT is a seperate animal.

A $100 gauge that protects $1000 turbo is worth the effort to me.

cost effectiveness for gm not to install a 100$ gauge in thousands of trucks. that would save gm lots of money in the long run. all about cutting the fat

Even furd has a boost gauge:rolleyes:

It is my understanding that if you sustain high EGT's for long periods of time the coolant temp will rise and the truck will begin to lose power and start to act weird. Will it go into limp mode? Not sure, never read anything on that but I know that it will buck real bad before it melts down..... (that was supposed to be funny)... But I think that is something that GM needs to consider in the future, would make towing alot easier for most.

That's a good idea. There is a tran temp gauge, why not a pyro?

you can over heat the tranny buy pulling a heavy load or racing. the tanny cooler is a lot small than the inter-cooler. the egt's will run alot cooler because of the air flow that the cooler as. if GM would put a bigger tranny cooler on it would run cooler to imo

:mad: It's the bottom line; money. The people who use these trucks would probably like to see a Pyro, Boost, and maybe a Differential Temperature gauge as well, but GM probably thinks that if the truck is left the way they made it, and subjected to normal use, that the EGT's will stay in a safe range, hence no need for an additional gauge. Some driver's don't monitor the gauges they do have, so would see no point in installing any more. But as Diesel Dually has said, $100 is cheap insurance to protect such a large investment.

The intercooler is create a denser air for the engine (more oxygen) and will have little effect on the exhaust gas temperature. Burn more fuel and heat will be the product.. I cant imagine gm didnt do tuning exactly for this purpose otherwise they'd simply be loading and engine in a truck with a shot in the dark chance that it wouldnt meltdown.. They've already done the homework while designing the engine and possibly used the software of the ecm to take care of it instead of the 100$ gauge that most probably dont know what its for anyway.

Pity the poor guy that doesn't have an EGT guage.

I personally have seen over 1500* pulling heavy trailer up long hills in stock configuration. :eek: Had it not been for the guage, I would have been fat, dumb & happy. Could be its a testimate to the durability of the product, I mean, anyone ever hear of a stock Dmax give up the ghost because of high egts? Not me.

The intercooler is create a denser air for the engine (more oxygen) and will have little effect on the exhaust gas temperature. Burn more fuel and heat will be the product.. I cant imagine gm didnt do tuning exactly for this purpose otherwise they'd simply be loading and engine in a truck with a shot in the dark chance that it wouldnt meltdown.. They've already done the homework while designing the engine and possibly used the software of the ecm to take care of it instead of the 100$ gauge that most probably dont know what its for anyway.

...and what do you do with the indications?