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2008 5.3 Evo Or Sct/custom?

Max4HDZ71

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Max4HDZ71 Enthusiast

Max4HDZ71

Posted
Posted

i have a 2008 silverado ext cab 4x4 with the 5.3 in it and i drive the truck 100 miles average a day 6 days a week. the truck averages about 15 mpg between city and mostly highway driving. i also tow an occasional 6x12 enclosed trailer during hunting season loaded full of decoys and maybe an atv. when i hook the trailer up i might as well have a parachute and anchor behind the truck. the trailer isnt that heavy as i can move it myself with out the atv in it so i cant imagine the truck struggling that bad. anyway what im wondering is custom better than like an edge hypertech superchips etc. i dont really care if i have a race/xtreme file. basically i want a tune to get better fuel economy and a seperate one that will give the truck more @$$ when towing the trailer. ive read alot of good about edge evo but i dont like how on the two tune it says u have to run a diff grade of fuel. as i said the trailer only gets pulled on the weekend during october through january so a whole tank of 91 is pointless to me so id really hate to spend the 400 bucks on a chip for one tune. i also dont really care much if i have the gauge pod with edge as once the econmy tune would go on the truck it wouldnt come off till i put the tow tune on to pull the trailer. any feed back is appreciated

  • 1 month later...
Prdtrgttr Enthusiast

Prdtrgttr

Posted
Posted

I have a very similar truck, as you can see by my signature...I am currently investigating the Blackbear Scan Cable Tune.

Please let me know what you find out!

Cheers from Canada! :cool:

mhenshaw Senior Enthusiast

mhenshaw

Posted
Posted

I ran the Edge on my 2008 before I got a Blackbear tune. The Edge was okay, I liked the increase in shift firmness but the engine tune was not all that good. I did not really see a good increase in mpg with it. As far as the different tunes it offered there was not a difference to me.

 

Economy tune is just 87 octane

Tow tune is just 89 octane

Performance is just 93 octane

The different tunes are the same (I think) except for the amount of timing added, and shift firmness.

 

The custom Blackbear tune is very good for mpg. I see 1/2 mpg to close to 1 mpg better than stock. The custom tune gets rid of all the torque management you want unlike the Edge. It will give you more power to pull the trailer and its a life safer if you have to get on the truck to pass someone. These trucks are held back so much by torque management.

 

As far as the octane, thats up to you. You get more power by increasing the timing, but you need higher octane gas or the truck will ping. I run an 87 tune.

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