Quote:
Originally Posted by kannibul
It's amazing how much octane is thrown around as a way to increase HP.
The car is designed to run on 91. Running less than that trips the knock sensors to retard timing. It won't advance timing due to higher octane - in fact, the car won't even "know" that it's running on higher octane, it simply knows that the knock sensors aren't tripping.
|
Oops *104-105
I cannot comment on his car as I do not own a 370z. I've not ridden in it w/ fuel nor seen it run at the track w/o fuel. It just seemed quicker, but you are right.. could be a placebo effect.
I've never run fuel in a NA engine before. Admittedly, I know little about it other than it's improving my cars performance.
My AFR's are fine. Stock compression ratios are already high. I may make a switch from fuel to meth though as fuel is just getting way to expensive. I am consistently trapping higher on fuel - 109mph vs. 112.9mph over nearly 30 runs. I am tuned though, but none of my logs have shown me knocking on 93oct. I'm actually riding the factory knock sensor - the tune is not adjusting timing at all.
I need to go back and review the logs, maybe try different parameters, and see if I can see anything.