Anyone who has a nelson tune, I am interested in seeing if you have any MPG gains due to the Nelson PCM. Please post your data concerning this. I am trying to decide if it would be cost effective for me to purchase a Nelson tune, and if a noticeable MPG gain exists due to the tune, then I could see how it would be cost effective for me. thank you

Yeah there definately is a singificant gain...but unfortunatley i dont track as religiously as most do. I do know i went from puting 10bucks a day (93 octane of course) to only puting in 10 bucks every three days!!

I think I got around 15 or so w/Hypercrap and 93 octane. same driving style (if not worse!!) with the Nelson yeilded about 17 or 18, on 93 octane. I drive the hell out of mine, so its not very "efficient"..I could get better.

With the nelson tune will your truck still pass emission testing?

I wonder how well an 87 octane tune works? I'd like to keep mine running on 87. It's cheaper.

That 18+ was on 87 oct going 90 -95 down the hwy. And in the city I gained the 1.3+ even with a heavy foot.

Well, I presented the info to my wife on the increased MPG, and she agreed that it made total sense to get it. I called Nelson Performance at about 4 p.m. CST today, and left a message. If my servo gets here tomorrow or Saturday it will be going in this weekend. Like I said, I do want to stay with the 87 octane gas. Is Allen pretty thorough when he interviews you about your tune? Is there anything I should ask for specifically? What kind of hp/torque gains do you think I could expect over stock on a 5.3L?

Basically, will I be able to do more than just chirp my back wheels (I have a factory LSD)? :bananasmi :bananasmi :ylsuper:

So Blendwizard, when did the factory create a drug factory? (Factory LSD) I couldn't pass that one up..... I am meeting with Allen Fri PM at the drag strip to touch up what changed when I installed my servo. I will tell you how fast his Goat goes in the 1/4 and how fast mine is in the 1/4. For some reason I can not pass up the opportunity to find out how fast that toy of mine can go for $15 for the whole night on Test & Tune night at the strip.

So you won the mind over matter trick? How bad did you scrap your knees when begging? :ylsuper: Congrats and good luck on the tune!!

No, you don't have to beg my wife. You just have to present things to her in a logical manner. What i did is take how much MPG i'm getting right now, and the money i've spet on gas since May 1. I then figured how much I would have spent on gas if I had been getting an extra 1.5 MPG. As of now, the difference is just a little over $30. I just bought the truck, so obviously I'll be keeping it for a while. So, if I'm saving roughly $50 a month in gas, not only will the PCM pay for itself, but we'll be saving a TON of mone in the lifespan of the truck.

All in jest, all in jest. When my obsession started everyone in my office thought I was nuts and I found ways to make it sound good and now I think they see it my way, I think.....

I just told them all to FO if they had a problem with me being faster than them and still getting the same, if not better mileage!! There are still people that ask "why are you doing all this to a truck, and a 4wd one at that?"

Yeah I used to get asked that alot, then i showed them parish's videos and they were like "holy crap". All's I could say was yyyyyyep :D and those are his stock 265/75's :lol:

Do you have a link to the parish video?

www.1320video.com then click on videos up top. enjoy :D

Will the nelson tune void the chevy warranty on the computer.

The only thing dealers have ever told me will void the warranty is INTERNAL engine mods. I have not talked to Allen yet, but I will ask him when I talk to him. I don't have much warranty left, anyway.

No it doesnt void the warranty, but If you take it in for maintenance make sure you tell them not to program the PCM because it has a custom tune on it right now