LBZ tuner comparison

[cowdoc]

I have used several different tuners on my '07 LBZ and I put together a summary of my fuel economy results. I have kept detailed records of my economy fron day one and all of the mileage is GPS verified and with 265-75-16's on the truck.
I have run the Diablosport Predator, Edge Evolution, Hypertech Max Energy, Duramileage ECM, and the Kennedy Diesel ECM. The EXCEL summary is attached. I only posted results from stock tuning, Predator 65 hp tune, EVO level 1, EVO level 2, and the Kennedy tune.
This is not exactly apples to apples because I added mods at different times.
The stock tuning and the Predator tuning was run both before and after I blocked the egr and installed the 4" inch exhaust, all of teh EVO results were before the egr block and exhaust, and all of the KD results were obtained with a blocked egr and a 4" exhaust. One odd twist to this is that I actually got better mpg's BEFORE the blocked egr and 4" exhaust :confused5:.

The bottom line for overall mpg's based on an average of the different types of driving:
1st place: KD
2nd place: EVO-2
3rd place: Stock
4th place: EVO-1
5th place: Predator 65 hp tune

Daily driving:
1st place: KD
2nd place: EVO-1
3rd place: Predator 65 hp tune
4th place: EVO-2
5th place: Stock

Hiway driving (70-75 mph):
1st place: KD
2nd place: Stock
3rd place: EVO-2
4th place: EVO-1
5th place: Predator 65 hp tune

 

[Unit453]

Nicely done...!

I would've expected better out of the Predator...My best mileage is on the 85 tune.

 

[jrkrace]

Very interesting..Especially about the blocked EGR decreasing mileage.

Also well done...

 

[RI Chevy Silveradoman]

Nice Analogy! Is the KD Tuned ECM Pricey?

 

[cowdoc]

Nicely done...!

I would've expected better out of the Predator...My best mileage is on the 85 tune.

I did get a little better mileage on the 85 hp tune, but I didn't put enough miles on it to include it in the comparison.

 

[cowdoc]

Very interesting..Especially about the blocked EGR decreasing mileage.

Also well done...

Yeah, I was real suprised with the resuts of the egr block and the exhaust. My egt's are considerably lower though, and I don't have all that soot geting back into my intake so it was worth it to me.

 

[cowdoc]

Nice Analogy! Is the KD Tuned ECM Pricey?

The KD ecm is pricey! IMHO, it is worth it to someone who puts a lot of miles on a truck. I put 40-50k a year on mine. With today's fuel prices and the improvement I am seeing in fuel economy, it is going to take about a year for it to pay or itself. I plan on keeping my truck til it has around 250k on it so in my case I could justify it.

 

[BKDespain]

I am curious where PPE fits into this comparison.

 

[GmcLbz]

I am curious where PPE fits into this comparison.

I feel PPE would hold it's own.:thumbsup:

 

[TBB]

It looks like it has been a little while since your post. thanks for the information. I just purchased an 03 durimax 3500 and would like advice on getting the best fuel mileage and a little more low end power.