Yeah, that is basically what the article I linked said. The only time you will see gains is when you move from a fuel with an octane rating too low for the engine in your car to one that is high enough or higher than what it was designed for.
The Ohio Random Thread... aka We Should Probably Be Working
- Thread starter THE Phen
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princess peach
Member
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- '92 Miata, '06 MS6
that's why I said, if you get the MP3 ECU then get 93, you can also get away with using 91, otherwise don't bother. I still stay away from GE gas, but that's just me
i advanced the timing on the 3 and still run 87, as long as it doesnt ping there is no reason to run anything else
glad im not the only one... im lucky to hit 270 on a tank from GE, and BP or Sunoco im pulling much better mileage... GE gas is rubbish
i ONLY use it if i have over 50 cents off a gallon then with the savings that once i can deal with the hit to the fuel mileage haha
princess peach
Member
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- '92 Miata, '06 MS6
I only go there when I'm running on fumes and it's the only thing around. I had 91 with the advanced timing and everything else, only went to 93 when I installed the Hypertech. The Speed 3 (use to
) and the MSM always get 93princess peach
Member
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- '92 Miata, '06 MS6
adjust the timing sensor, it's pretty easy but haven't heard of it being done on a Speed3 (not saying you can't)
yeah like pablo said the timing sensor is only being held in by 2 bolts, loosen the bolts and you can advance or retard the timing some...
its not something you can really easily feel but comparing 2 of my dynos from 2 different years the timing advancement def. did help shift some power towards the top end and didnt seem like it would run out of steam, but instead continued to pull the whole way to redline
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frenchy chan
Member
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- '07 mazda3 and '10 nissan versa and '86 honda prelude si
I'm not saying your are "blase"...i just hope this information informs some others out there (i'm sure some of you will have kids in the future
)...there are tons of info/research/videos on the web showing the benefits of keeping a child rear facing for as long as possible. And i didn't know all of this with my oldest daughter...she went forward facing at 1yr/20lbs, but i plan on keeping my other daughter rear facing for a long time and both of them in 5-point harnesses for a long time 
we want this for our oldest
:http://www.recaro.com/us/product-areas/child-safety/product/combination-harness-to-boosters.html
video of a crash test with a rear facing car seat:
http://www.youtube.com/watch?v=K62Ea8Fs4ng
video of a crash test with rear vs. front facing car seats:
http://www.youtube.com/watch?v=di0dSVJm-Rc
Oh I know, Evan was.
Proteges have knock sensors. When you put in premium fuel it detects it, and advances the timing. The more the timing is advanced with higher grade fuel, the greater the combustion. More efficient combustion leads to better power and better efficiency.
Eh... no it doesn't. If it did, everyone would have MP3 ECU's from the factory.
But you're right about the knock sensor.
princess peach
Member
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- '92 Miata, '06 MS6
the ECU only changes the timing if it detects knock to prevent issues at that particular moment, which only happens under certain conditions. It doesn't test the grade of the fuel, and it doesn't change the timing tables in the short term, maybe long term is you constantly use that grade but it will always try to work as it was designed
Yeah, so am I. An ECU won't magically adjust itself to give you magical horsepower if you're feeling spendy one day and put 93 in instead of 87. Lower performance for self-preservation, yes. Unfortunately not the other way around.
What I meant in my last post was that if it did adjust the timing as you described, it would effectively turn a regular FS-DE ECU into an MP3 ECU, essentially.
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- 2006 Infiniti M
no you didn't. you experienced the placebo effect, possibly due to a subconscious change in driving style.
