I have been reading all over and seeing how many of you have one of the GDE tunes. But It looks to be uncommon that you have a EGT gauge.

I'm from the diesel truck world, Where if you do anything with any kind of tuning box or re flashes you are considered a serious gambler if you don't run gauges, trans, egt, boost. I could do without a boost gauge and having a tune, but i don't think i would be able to drive and feel comfortable without an EGT. Is this something that GDE recommends using and not many of you do? Or do they just not run hot like the trucks?

One of the main things holding me back from geting a flash other than spending 450.00 for ONE tune, Is the added cost of gauges to go with it.

And for those who have them, where are you installing the pyro?

We are in the same boat. There are several cheap anolog gauges that will work fine for our CRD's. I have once talked about why you need to remove the cat if you plan to drive it hard and/or tow for long times. Everyone was like why would you do that? haha....Get some higher egts and find out. I guess they dont run hot, or these guys dont think egts arnt important.

I bet you one thing, After i get my hoy tune. a full set of gauges are going in.

When the GDE tune first came out, a member here with an EGT guage posted an average decrease of 100 degrees F measured after the turbo. The GDE Tune, unlike many of the fuel-fooler boxes used in juicing up big trucks, adjusts multiple engine parameters to produce better driveability and more power - not just fuel delivery.

If you are concerned about the tune's effect on EGT's, I would encourage you to call Keith at GDE. their phone number is at the bottom of their posts.

I am anti box tuners in the diesel truck world, because of them only fooling certain things and not actually tuning like custom chips do. Its not so much the issue of the EGT's while just driving with the ECO tune i'm more worried about the ones who tow with the tune or have a decent load in the jeep 5ppl and so on. The eco tune on my powerstroke was good (custom tune on a selectable switch) for keeping the temps in range but when pulling a larger hill or towing it had to be watched. Mostly when it was in the lower RPM range, now that might be different and not so much of an issue since these have a VGT.

What i'll probably end up doing is just try to snag a good deal on ebay or around the forums for an EGT gauge/pyro and toss it in stock, then i'll be ready for when i get my tune. Its just the part of me that likes knowing what is going on with my engines. Yup, call me OCD lol

My truck has to be near lugging up a hill in high gear to get high EGTs. I doubt you would need a gauge to monitor a CRD unless you are towing and lugging, which is hard to do with an auto tranny, when it downshifts you will have high RPMs and low EGT. The only good use would be towing and cool down?

The temperature drop can be explained by a combination of factors. At each load point in the engine operating range the main timing is advanced somewhat, higher levels of boost, tuned pilot injection, and optimized rail pressure all lead to a more efficient combustion event. More energy is transferred to torque and there is less waste heat. The proper burn time and temperature leads to less overall heat rejection.

We have started tuning a duramax LBZ and have noticed the production tune will produce very high exhaust temps when towing. This is a good indicator that tuning will help the application and improve the fuel economy. The nozzle spray geometry can also play a significant role here. A staged turbo set-up would be beneficial as this truck has a massive turbo and its range is limited. Our goal is not to produce massive power at the top end, but just maximize efficiency everywhere.

DO you happen to know where that pod came from? I have been kicking around the idea of a shift kit also. Wheres a good place to pick one up? I figure if i'm going to pull the pan to change the filters then why not.