Superchips use,long term

[NWRQC]

Long time user here, even ran the old 3714. Ha ha, Wanna bend a rod use 87 Fuel with the 91 at or near sea level..

Thats the recipe for a cracked ring land, I don't think you'll be bending any rods.

The theory behind this is as following:

The different octane ratings have to do with engine knock, your engines computer ignites the mixture a number of degrees before the piston reaches top dead center (timing advance), long story made simple more timing advance is more power. However advancing the timing AND running low octane fuel can cause engine knock wich is the detonation of the fuel mixture at the wrong time.
Higher octane fuel is more knock resistant and allows you to advance the timing further theoretically allowing you to make more power.

From factory the engine timing is setup conservatively to run with lower octane fuels (so less timing advance), when you load a 94 octane tune, the tune will advance your timing more since you are supposed to run 94 octane now. The advance in timing will give you more power.

Now on the other hand the motor also has knock sensors wich can tell when the motor has 'knock', if they detect knock they will retard timing to get rid of the knoc and protect the motor, how far this system goes into protecting your motor I don't know,so to answer your question, IMO when running a 94 octane tune I'd run 94 octane fuel .

Disclaimer: got no training whatsoever in the automotive field so if I'm talking ******** here, please feel free to correct me

Summed up pretty well.

Using these tuners is very simple as long as you stick to the basics. If you have a basically stock truck, dont try to rev it to 7000rpms and always run the correct octane fuel that corresponds with the tune you selected. Do this, and you will not have any problems and your truck will be alot more fun to drive.

Amen

 

[KGBIGCOUNTRY]

If you crank the ringland and its during a pass you can crack the rest of thr crown of the piston then bend the rod.

 

[03MopaRamman]

Ok whatever Guys, Don't know what a ringland is and therefore obviously should have watched what I said cause maybe I meant Push-Rod then could have been really wrong. Well then I best get going on my November Cam swap, hope I don't fckitup as it is only my 5th one without a lick of assistance from no one:..............Life is really a Blast..........Literally!

 

[KGBIGCOUNTRY]

Ah you were getting at bending a pushrod, I think he thought and I did a connecting rod. Danny you know your a cool cat in my book and you know awhole lot about these motors that 99% of the people driving them have no clue about.

 

[Jeff9329]

Now the best Safety Option I like is selecting the 140 Mph top-end, that way if some thieving Basterd steels the Truck (I know that ain't gonna happen around here) they will be sure to meet their maker if they try to take her to the limit!

HA!

Agreed.

 

[TheSatinPumpkin]

Been running my SC3815 since 07. Did a year or so with 87 then moved to 89 for a year then switched to 91 when i added headers in 09. Moved to DSP for a few months but went to SCT custom tune then i unloaded SCT custom tune. Reloaded my SC3815 91 tune and max shift settings and stacked my SCT tune on top and been running stacked ever since.