Heheh DSM... Hands up! You had me at I'm not here to win hearts...

Not qualified or certified with anything on your checklist. I just hold free will and freedom of choice very dearly. So should others...

 

[QUOTE=Wanderer..

I have a friend who runs 100 in his Yaris if he's going to go "driving", I can tell the difference. [/QUOTE]
I bought and used some NOS Off Road octane booster long before installing the supercharger kit...It was crazy how much faster my car was with that stuff... I have been mixing a concoction of stuff I bought at Wal-Mart lately... If you haven't tried it you really don't know that there is a difference....
..

 

Again guys, no problem with opinions and could care less who uses 87 or 85 for those at altitude.. but the ones pretending to "debunk" earn my ire for lying on such a commonly misunderstood subject.

 

So. After all the ignorance, genius, hate and dissension, and even fun in a few instances, if I use 93 instead if 87, how much HP will my 2010 have, and what % will my mpg improve or decline? It must be a scientific calculation.

 

Speaking of ignorance.. That is what is referred to a loaded question.

Real world results will be different for everyone.

 

any Hp you pick up will not be noticeable as for the rest i have no idear

^^ this guy, right here, is pretty awesome. FACT

 

Bwahaha I think you broke my sarcasmometer

As far as peak whp.. the ECU is load/torque limited (therefore peak whp limited) ask the GE guys on stock ECU w/ no piggy back and a couple grand in bolt on intake manifold, intake pipe, and exhaust systems. Not to mention that on the GE you cannot even pulse tune your header for power if you even had the means for it because it is integrated into the cylinder head.

But you stand to pick up a significant amount of torque under the curve which is what you most definitely can feel and hear... and even smell.

 

I'm not as much concerned with numbers as I am with what I can feel when driving... A power increase of 10% at WOT high RPM means very little to me..A lesser increase across the entire rev range is something experienced every time you drive.

 

Not to say you wouldn't notice or appreciate an extra ~15-20whp in your particular case lol

 

Only in a lab environment will you get exact/consistent figures... that's why this topic always generates the responses that it has... too many variables/dependencies... "Driver" being the biggest... So to the seasoned ones, it becomes more of a "feeling" the difference... Leave it in the lab and you should get consistent numbers... You and I will never get the same mpg even if we drove the same car on the same roads...

Just my take...

 

I have never heard the argument to take feelings instead of measurement so eloquently expressed.

 

I think that was a compliment...

 

It feels like I've lost that much power since putting the taller, wider and heavier tires on it... On top of that they have caused much worse torque steer.... The other wheels and tires were 12 Lbs lighter, so I've added a total of 48 Lbs of rotating mass... I don't have as much wheel spin, I can corner better though and everyone thinks the new wheels and tires look better... I'll have my Enkeis back on it one of these days..

 

whenever i use premium i notice my mpg is higher

 

So if I put out x hp with 87 octane, 117 I believe Honda says,why would 93 octane hp be different for everyone?

 

I was trying to stay out but I could not. There is a VE map based off load(map) and air(maf) which the ecu determines how much fuel to add. Any loads over 70 percent with 87 will result in added fuel to a 11:1 fuel/air compared to 14.2 premium. Hp will be the same but its using less fuel to make it. Taking off slow will only waste more fuel esp. with regular because loads will be close to 100 percent even though your barely touching the pedal.

If I drive around 45 mph I see 70 mpg and at 70 mph I see 45 mpg according to my ultra gauge.


DSM, I seen a episode of Horsepower TV which they were talking about chemical inter-cooler. Water methanol injection. It was a good show and they took a 572 with 110 racing fuel and made 700 HP and then with 93 with W/M made 733. I wonder how it would work in a stock Fit with regular?

 

Honestly, the HP number comes from the L15A here in Japan converted from the PS or kW number. Regular gas here is something like 89~90 octane there. So the Fit there may not even be making it's full power running on 87 due to the ignition being pulled back. Honda allows the ECU to run on multiple grades of fuel, when it senses what is being fed it not magically at all adjusts to that. When people are just too damn stubborn or ignorant to accept that cars today are not running on carbs relying on different jet openings, that the ECU is quite powerful and can alter the car's behavior based on many different scenarios, it's best to just IGNORE them. Members on this forum have noted advanced timing when running a higher grade fuel. You can use 87 to your heart's content because of Honda's programming inside the ECU, but to blatantly say that using another grade is a waste is just, pardon my fingers, PHUCKING STUPID!!! You may not see higher MPG using 93, you might, it really depends on your right foot. Some people drive as if Miss Daisy is in the backseat and really wouldn't notice any difference, except maybe when going up a steep incline and trying to pass another vehicle, where 87 is limiting the potential of the engine.

DSM, just stay out of these discussions, your knowledge is too valuable to be lost because of some that haven't a clue and believe everything they read online without actually trying for themselves. And even if they did, they are too deep in the shite to admit that their ECU was doing more good for the engine on a higher grade of fuel.

 

 

there must be something wrong with your ignore function, bubba:

 

It's necessary to have faith (or a car that requires higher octane) in order to feel the difference. You have no faith.

Me either.