All of the aftermarket LS engine tuners (people not handheld device) will sell you a tune for whatever octane you want to run. I understand this for the car LS engines where the compression is generally higher and they are generally retarded a little by the factory - thus up the octane and dial in the timing correctly. But what about the 9:1 truck engines? GM sets them up to run 87 octane in a truck subjected to heavy loads. If you are doing heavy towing, I can see the benefit of adding 93 octane and tuning accordingly. But what if that 9:1 truck engine is put in a hot rod. The loads on the engine are now greatly reduced. Throw in a bigger cam and the dynamic compression is even lower. Can you really advance the timing enough to warrant 93 octane and still be making extra horsepower? It seems to me that in a low compression engine, the chance of detonation should only be where timing is way past optimal. Wouldn't you be able to tune around lower octane gas and still make max power in this situation?
I don't mind paying for super - I just don't see the point.
I don't mind paying for super - I just don't see the point.
