I got the Hypertech 2 weeks ago and have it set on level 2. The power is immediately noticeable ,. I wasn't looking for huge power gains. It will , however smoke the tires from a dead stop without power braking. I'm just now checking the first tank of fuel for MPG.
On winter fuel over several tanks I was getting about 16.5 around town with the egr plug pulled.
I'll be checking several tanks and likely try level 3 as well. So far my overhead reads 18.2 and is usually off by .7 mpg , but we'll see. I'll be towing 11m lbs. down to Florida in a couple weeks and am anxious to see what I get then.

 

Key counts as well as a few other key areas will show programming changes. Have fun!

 

I was told to dyno in O/D for more accurate HP numbers.

 

whats a key count?

 

Erik, any word on the key counts. Sounds good if it's invisible.

Charlie

 

It's what gives the dealer the ability to check for a programmer.

 

Any updates?

 

Towed 11k lbs. on level ground for 2500 miles and averaged 13.1 mpg.
I'd guess most of the better mileage came from unplugged EGR but the added power with the Hypertech set on level 2 was very nice and no problem whatsoever with egt's.
Heading out West in June we'll see how it performs when we go up and down some mountains.

 

How fast were you running?

 

Speed was at 65mph

 

I got an e-Con for the F-N-L's 08 and of course tried it out on mine. The nice thing was that the one I got came set up with the Max Energy tuning instead of the e-Con. I know that stage 3 was awesome once it got into 4th gear. It just kept pulling. Was alot more than I was expecting for just an easy programmer. Of course since it wasn't for me I called Hypertech and had it reset to the e-Con. Since it hasn't sold, I may call Hypertech and see what the upgrade fee would be to put it up to the Max Energy tune. Maybe to use at the track or dyno days only.

Chris

 

Just got off the dyno.
07.5 Chassis Cab Aisin 6spd auto. Dynoed in Tow Haul
Stock with the butterfly in intake removed and egr unpluged 281hp 560tq
Stock with list above and DPF removed SB drop in filter. 296hp 567tq
Hypertech Stage 1 309hp 602tq
Hypertech Stage 2 348hp 675tq
Hypertech Stage 3 373hp 733tq
I know my truck is not in stock form but what happened to the 129hp?

 

Was the dyno a load dyno? The VGT turbos need to have load on them or they don't perform. We usually find 30-40% load puts them in their sweet spot.

 

25% load on the dyno.
The egts on the dyno got to about 1150deg but out on the road on level 3 it will go to 1400deg.
I wonder what hypertech was doing when they dynoed their CC 268hp stock?

 

more load might have fueled it harder