ok i just installed my nelson and i have to tell you i am very unimpressed..i cant really tell much of a difference in performace..my hyperpac had better gains.i will be calling tomorrow to discuss what was programmed cause its still a dog down low.well that just me giving my 2 cents on this..going to call allen tomorrow and see how its programmed

 

I doubt the hyperpac was better but Nelson will work on your tune till your happy.

 

tell him the troubles you are having down low and he should be able to help you out alot better than just that hypercrap


after i got my tune, it opened up on both the bottom and top ends

 

what rpm does it bog @ ?

 

The reason its a dog down low is your trying to get 6,000+ Lbs moving. mine was a dog till I cammed it then it got a little better. if you decide to cam you truck go with something like a 216 duration and over 550 lift. I wish I would have gone bigger with my cam. the small cam I put in helped it out heaps on the bottom end.

The tune will help some but not so much that your gonna be bolting out the hole

 

I noticed much more performance increase on the 2nd and 3rd day of the new tune then I did on the 1st one.

Its been said that it takes about 150 or so miles for your truck to learn the new tune. It makes new fuel adjustments and whatnot.

I was really happy with my tune.

You relize jumping off the line in these things is completely different then in a car. If you wanna launch off the line spinning your tires and bolting out of the hole. Your gonna needa upgrade your stall.

SOmeone correct me if I'm wrong but I don't think these things can spin the tires launching off the line with a stock stall..

 

Barely LOL

 

Mine woke up after the first tank of gas....much better out of the hole now....but still needs a turbo!!!! It is a big truck to get moving. But I only have the 5.3 with 3.42's, so yours should have been better than that. You must have 4.10's with the 6.0 right?