89 vs 91 tune.

[TheDude300]

Hey,

Completely new to this programmer. I have a few questions. I recently bought a Diablo Predator (used) and management to screw around with it and figure most things out. But, I still have a few questions about it and hopefully someone here can answer them.

Anyway, I drive a 07' Chrysler 300 3.5L V6. I have always ran 89oct since I bought it. So, once I got the predator. I set the 89oct tune on, adjusted throttle response to 20% and increased shift firmness. It was like night and day in terms of performance increase. At least it does feel significantly better.

My question is.. in my city. Almost all gas station carry 91, very few carry 93. I was wondering if I will truly notice a increase in overall performance if I go with the more premium fuel. Will I notice the 3hp and 3tq difference in the 91 vs the 89? I want to get the most out of my sluggish engine. And really want to know if the 91 is worth the bump up too..

[mikel]

the 91 tune allows for some additional timing, which is where you traditionally find power gains....

Thanks

[TheDude300]

Right, but are those power gains going to be worth wild or is it better just to stick with 89 tune? Or even, is the only worth wild jump is to 93 tune?

[mikel]

thats a question that really only you can answer...

[jmgak47]

Do logging and find out what it prefers. Elevation can allow for lower octane and a higher octane tune.