more power an better MPG less bank breaking

[HummerRidin26"kmc's]

suggestions? lol besides putting a desiel or supercharging the h2((((which id love to have a cummins in this thing screw a duramax aha with a manual tranny)))) whats the best ways to get more power an more mpg in the 6.0 without breaking the freakin bank thanks for your help guys

[Badace]

Like they say, I'd rather be Cummings than be stroking.

[IRA51]

You want more power and better fuel mileage ,this sounds like a job for the great Obumma ,he can take over banks and car companys in a single bound .. keep a fresh airfilter and a sharp tune on it and be happy with 13mpg (if you keep it 75 mph or less)

[HUMMERcustoms.com/TAZ]

Find a local tuning shop or contact Allen Nelson at Nelson Performance to put as lean a tune as safe a tune on your stock setup with you adding a cold air intake to the mix. Switch to a top quality synthetic engine oil and any other fluids you can change. I use all Royal Purple as I saw Horse Power TV on Powerblock do a actual dyno run in a latish model Camaro using dino oil first then changing to Royal Purple engine oil gaining 8 HP. If motor can gain HP on oil change only, it means friction was reduced so MPG must be helped some. Thus changing to all syn oils any place in ride you can will only help HP and MPG.

The leaner tune will gain you roughly 40 HP and use less fuel while it does it improving MPG. So just maximizing your stock engine anyplace you can is the cheapest and easiest thing you can do to help yourself. Basicly this is what a handheld tuner does for stock rides but, even their tunes leave up to 40 HP on the table over a custom tune job.

Allen can offer other suggestions if you contact him for a tune. You can go to a 160 degree T-stat will help. Go to electric cooling fans in place of your mechanical fan and gain 18HP.

Hope this gets you going in right direction. Oh if you start lifting the rig and adding bigger tires and rims it will use any gains mentioned above. You could with HP gains go to 3.65 gearing or something versus stock 4.10 gearing to get you into a lower RPM range quicker.

You could gain up to as much as 75 to 100 HP without SC or turbo etc.
I know I gained 125HP at wheels after all my mad scientist stuff. Every engine or rig is different. I know it appears right up front I got a ride that responed really well to every adjustment I made to it.

TAZ

[IRA51]

The electric fans (if they pull as much air so you dont over heat ) will give you more hp ,but 18 rwhp is not going to happen ,you will be lucky to get 2 or 3 hp . as far as a tune ,that will be a problem in the heat of summer in hot climets. if your looking for fuel milage a 160 therostat is NOT the way to go . the tune is nice and good for a very modest bump in hp in the winter ,but once the outside temp reaches 95 or more you will need octane booster or you will get detonation and the computer will retard the timeing and your power and milage is going down not up . now if you live where it is cold year round the tune will work . at 6500 lbs a shape like a brick and all wheel drive the H2 is never going to be a fuel thrifty vehicle .enjoy it for what it is ,a great truck for on and off road that can transport 4 or 5 people in comfort on most any surface . all these mods cost money and are a source of revenue for the company's that make and sell them ,so when you hear all these claims of big HP and fuel mileage bear that in mind B4 parting with your money . remember a salesmans promise is like a prostituts kiss .