The cross streets are Cake Creek & Union Hills, about a mile south from the 101 (not the octane )& Cave Creek!

 

I dont know, I will find out shortly!

 

Dude, I drive by there every day. Does anyone know if this will help our stock Accord?

 

Well that depends, if you are expirencing any "pinging" or "knocking", under any conditions, then go for it. If not, then it's just a waste of money.

 

You've got plenty answers, but do you now know what octane is? :pat:

 

People, 101octane always benefits an engine. Not only does it stop detonation, but it increases the firing ability. I always ran race gas in my turbo cars when i was racing, not 101 but 116 or 118. Those are leaded, and very bad for cars with stock cats and o2 sensors. If you are running a nitrous setup on your toyota, you definently have to have your timing retarded, and if you do put 101 its a benefit so you wont detonate. On a stock motor though, i dont recommend 101, you wont see too much of a hp gain, but if you are having detonation problems (which you shouldnt), the race gas will help. Its used mostly for racing applications, either high compression or boost (turbo or supercharged vehicles).

 

Actually controlling fuel by up to 50% + or - is quite a big change. The S-AFC also enables you to control when those settings kick in based on throttle postion. I ran one in my Eclipse and using a datalogger I could really tune my car well.

 

This is precisely why I suggested to read what octane is right from the begining. You'd then know that firing ability is actually decreased, and everything else would fall into place.

 

Increased compression=higher pressure=higher temps

With higher temps you want a gas that is harder to ignite, higher octane fuel is esencially harder to ignite. If you run a low octane gas, it will ignite pre-maturely (not when it is supposed to), and cause pinging. In some cases it can get so bad that the engine will literally blow up.

 

Not really, what is it?

 

A person shouldn't see any gains with 101 unless their engine requires it.

If some one is having detonation with a stock engine, putting 101 in it is overkill. Why not just spend the money to get the combustion chamber cleaned? It's not that much for a can of Seafoam.

There are so many people that think it makes a difference. I've noticed that Shell gas stations are profiting off of this. They now call their premium gas "V-Power!!!!" Whopty dooo!

Now all the ricers are going to empty their pockets to get gas that doesn't make a difference.

 

Here ya go NX,

 

OK, so I fill half of my tank with 101....we will see how that go's!

I am going to ask Dyno Comp(the one's that installed my nitrous)if their is a way to set my SAFC II for two stages. 1. for every day driving-92 octane 2. for racing-101 octane or better.

Oly88, thanks for the advice you are the "the fuel Master" in my eye's!

Now......with changing the fuel all the time will it "hurt" anything on my motor???

 

DAMN 4RUNR!!!!!!!!!

This is a site to help people and see cool things that others have done no to cut everyone down and make them feel stupid! Try having a little RESPECT for everyone!

 

Thanks, I guess I have to know my stuff since I'm going into chemical engineering.

As for changing the fuel all the time. No it shouldn't hurt anything. If you are running nitrious and some of those other mods, I would suggest that you keep it premium, and you could use 101 if you know you'll be using the nitrious a lot.

 

Then why don't you two sit down and I'll read to you both, followed by some Hans Christian Andersen.

Typing in "what is octane" in any search engine brings up a HowStuffWorks article about octane.

 

I dont think 101 will help much, although engines are most likely to ping (knock) whatever you want to call it under very high load at low RPM. WHich refers to the comment made about wheeling. MOdern engines tend to protect themselves pretty well, with knock sensors and retarding timing, etc when it is sensed, so it is unlikely that it will affect your engine.

WIth good old carb and points engines the biggest problem was hitting hills in a high gear and then giving it gas. It tended to produce knocking in a modified engine (high compression), solution was shifting down. This problem went away with electronic ignition and fuel injection computers, which adjusted timing with input (knock, throttle, air, etc) and mapping to avoid this situation.

So adding 101 will make it less likely to knock in these specific situations, and can possibly help to avoid the computer retarding the timing under severe conditions, which in turn might just give you a bit of more torque in those conditions. But it is unlikely to do it while wheeling, unless you like WOT wheeling. I think the drivetrain will knock before the engine then.

My 2c. 101 is useless for our lazy 4Runner engines, unless you added some serious mods to it.

 

well I believe it helps in specific applications, you can try to prove me otherwise but I actually have put over 116octane in my rides, and I know what they do and how they help.

 

He's saying they do help in some applications, but not in ours so much.

 

Greetings,
Octane is simply the fuels ability to be compressed without igniting. High octance fuels are generally used for high compression engines to prevent detonation (here we go again). if you do not require the fuel, it will do NOTHING to enhance your horsepower or torque. You'll just be burning money along with the fuel.
Supercharged and Turbocharged engines generally need higher Octane fuel because although one uses exhaust gas and one uses mechanical energy from the engine they both COMPRESS air which causes the air/fuel charge to heat up. This can cause early ignition of the fuel which is bad. Intercoolers are used to cool the air charge from these devices, especially the turbo since they use hot gas to make them spin.

Hope this helps.

MV

S