Im having my truck tuned next weekend by Justin and wondering what other tweaks I can/should do before hand. I'm gonna have it tuned on e85 so I'm wondering if a better plug runs better with e85 or not. Everyone with ls1's use ngk tr-6 but does e85 like a hotter or colder plug or doesn't matter? My truck is a 2011 silvo with a 5.3 with air raid MIT tube, modded air box and catback with a xr-1 muffler.

 

Just curious, why E85 on a stock truck?

 

Just curious, why not?

 

stock plugs are fine. most of your tuners will just add timing to the alcohol table. this way you still have an option to go back to pump gas. my truck is 100% e85. got tired of the adder table crap.

thats just me

 

Yea I'll prob just keep the stock plugs with no hard evidance of better plugs.

 

I haven't paid much attention, although I should, are there plenty of these stations locally?

 

Not saying you can't, but just seems odd given you are running a stock compression 5.3. Has anyone shown significant gains to outweigh the loss in MPG on a stock compression 5.3?

 

I'm just trying to save my environment

 

Not to mention it's a lot higher octane and can take tons of ignition advance.

 

todd george and langsford is the only station in the metro area i use. then again. it's 2 miles from my house.

ding ding ding!