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Old 11-13-2008, 12:39 PM   #1
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100 Octane stations in CA

There are quite a few 76 stations here in California that pump 100 octane. Here is the list:
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Old 11-13-2008, 06:03 PM   #2
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May i ask what the point is? Are you just saying we could put 100 in our camaros and haul more butt?
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Old 11-13-2008, 06:36 PM   #3
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there's one about 12 miles from my house.
Last time I looked it was 8.20 a gallon : O
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Old 11-13-2008, 06:41 PM   #4
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May i ask what the point is? Are you just saying we could put 100 in our camaros and haul more butt?

This is arguable, but I believe the answer is yes.
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Old 11-13-2008, 09:18 PM   #5
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Yes you will get a small boost in HP using 100 octane..
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Old 11-13-2008, 09:29 PM   #6
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When I tried 100 in Vegas in my 91 z-28, the difference was noticeable... can't imagine what the SS will do
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Old 11-13-2008, 09:36 PM   #7
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How does using 100 octane without any change to timing net any power?

I imagine the LS3 is smart enough to know when its there, but a 91 Z-28?

Explain! =)
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Old 11-13-2008, 09:45 PM   #8
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Higher octane burns slower = longer burn cycle = less strain on motor (the horsepower piece is arguable). It seemed more efficient and the car pulled harder. About 10 miles into the tank, I noticed a difference
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Old 11-14-2008, 02:29 AM   #9
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Theres one 2 miles from my house...

My daily driver picks up 50hp when I throw 100 octane on it , However I have a separate file to run it (push of a button)
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Old 11-14-2008, 04:08 AM   #10
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I always thought these gas stations were there for old cars that absolutely needed the higher octane. However, I thinks it's great that some of you guys have gotten noticeable preformance increases! Since different levels of octane do mix proportionally, ie. half a tank of 92 + half a tank of 100 = a full tank of 96, I wonder what the optimal ratio would be to give you a noticeable increase without having to fill the whole Camaro up with 100. I don't have any problem spending the extra 20 cents a gallon for Supreme (91/92 octane), but I really don't want to fill up a 19 gallon tank at $8.20 a gallon...$155.80
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Old 11-14-2008, 10:52 AM   #11
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I have a station about five miles from my house. I go there to fill my 5-gallon gas can with $40 of 100. It hurts the wallet, but I can run more aggressive timing and not have to worry about torching a piston.
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Old 11-15-2008, 03:46 PM   #12
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Octane rating
From Wikipedia, the free encyclopedia

The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Since switching to a higher octane fuel does not add any more hydrocarbon content or oxygen, the engine cannot produce more power.


Source==http://en.wikipedia.org/wiki/Octane_rating

Why do people believe all the nonsense other people write? Andyrew, 50 HP? you're crazy. Octane slows the fuel burning so that it burns while the piston is on the downstroke, therefore the energy is released on the downstroke rather than the upstroke causing power loss and ping. Octane does not add any more energy to the fuel mixture that is not already there. It does not help clean your engine. It has none of those properties. It is only neccessary in high compression engines to prevent knock. If your engine is tuned properly and there is no knock present, adding octane is simply a waste of money.
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Last edited by CWI; 11-15-2008 at 04:00 PM.
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Old 11-15-2008, 06:59 PM   #13
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Quote:
Originally Posted by CWIweldace View Post
Octane rating
From Wikipedia, the free encyclopedia

The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Since switching to a higher octane fuel does not add any more hydrocarbon content or oxygen, the engine cannot produce more power.


Source==http://en.wikipedia.org/wiki/Octane_rating

Why do people believe all the nonsense other people write? Andyrew, 50 HP? you're crazy. Octane slows the fuel burning so that it burns while the piston is on the downstroke, therefore the energy is released on the downstroke rather than the upstroke causing power loss and ping. Octane does not add any more energy to the fuel mixture that is not already there. It does not help clean your engine. It has none of those properties. It is only neccessary in high compression engines to prevent knock. If your engine is tuned properly and there is no knock present, adding octane is simply a waste of money.
This may be true, but my right foot doesn't agree
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Old 11-15-2008, 07:31 PM   #14
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Quote:
Originally Posted by CWIweldace View Post
Octane rating
From Wikipedia, the free encyclopedia

The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Since switching to a higher octane fuel does not add any more hydrocarbon content or oxygen, the engine cannot produce more power.


Source==http://en.wikipedia.org/wiki/Octane_rating

Why do people believe all the nonsense other people write? Andyrew, 50 HP? you're crazy. Octane slows the fuel burning so that it burns while the piston is on the downstroke, therefore the energy is released on the downstroke rather than the upstroke causing power loss and ping. Octane does not add any more energy to the fuel mixture that is not already there. It does not help clean your engine. It has none of those properties. It is only neccessary in high compression engines to prevent knock. If your engine is tuned properly and there is no knock present, adding octane is simply a waste of money.
You're absolutely right. It's an anti-knock agent, nothing more. Merely an old wives' tale placebo effect these guys are "feeling".

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Old 11-15-2008, 11:50 PM   #15
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50hp is perfectly possible since hes running a turbo just like me.

410rwhp on 95 octane, 8* advance (i know, really low but its a stock motor)
454rwhp on 100octane, 14* advance

thats 44rwhp, which is easily 50 crank hp and thats going 95-100 not even 91-100.
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Old 11-15-2008, 11:57 PM   #16
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Quote:
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50hp is perfectly possible since hes running a turbo just like me.

410rwhp on 95 octane, 8* advance (i know, really low but its a stock motor)
454rwhp on 100octane, 14* advance

thats 44rwhp, which is easily 50 crank hp and thats going 95-100 not even 91-100.
I would argue that you are getting the gain from the tune, not the octane. Did you follow the link and read it? If you get a gain it is not the octane level. Read. Increased octane level adds zero hydrocarbons to the fuel mixture= no added power.
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Old 11-16-2008, 12:06 AM   #17
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Quote:
Originally Posted by fazm View Post
50hp is perfectly possible since hes running a turbo just like me.

410rwhp on 95 octane, 8* advance (i know, really low but its a stock motor)
454rwhp on 100octane, 14* advance

thats 44rwhp, which is easily 50 crank hp and thats going 95-100 not even 91-100.


Its not because the higher octane inherently makes more power, its because you can tune the engine into a "harsher" range that makes more power that would usually cause detonation with lower octane. Notice your timing advance that you quoted.
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Old 11-16-2008, 12:28 AM   #18
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Quote:
Originally Posted by CWIweldace View Post
I would argue that you are getting the gain from the tune, not the octane. Did you follow the link and read it? If you get a gain it is not the octane level. Read. Increased octane level adds zero hydrocarbons to the fuel mixture= no added power.
Quote:
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Its not because the higher octane inherently makes more power, its because you can tune the engine into a "harsher" range that makes more power that would usually cause detonation with lower octane. Notice your timing advance that you quoted.

thank you both, but i know how engines and octane works. i nevermeant to imply i gained this numbers with "only higher octane" i posted the timing numbers because as he said it was with the "push of a button" that he gained the horsepower, designating he was runnng a different tune, as are my numbers on differet tunes.

Quote:
Originally Posted by andyrew View Post
Theres one 2 miles from my house...

My daily driver picks up 50hp when I throw 100 octane on it , However I have a separate file to run it (push of a button)

i was replying to this comment "Why do people believe all the nonsense other people write? Andyrew, 50 HP? you're crazy."
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Old 12-05-2008, 08:15 PM   #19
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here in patterson theres a 76 that has 100 octain,
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Old 12-05-2008, 08:35 PM   #20
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I'm not going to stand on either side of this issue. To be honest, I really don't know if a simple boost in octane will do anything for power. But I will say one thing....using Wikipedia as a reliable proof of anything is completely pointless. Wikipedia is full of crap on many, many, many issues because absolutely anyone (even some uneducated dumb-a$$) can go in and edit any topic and add whatever they "believe" is true. I'm sure you could google the octane facts and find whatever the truth is, but trusting Wikipedia is not a reliable source.
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Old 12-05-2008, 09:03 PM   #21
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Quote:
Originally Posted by blazzin1 View Post
I'm not going to stand on either side of this issue. To be honest, I really don't know if a simple boost in octane will do anything for power. But I will say one thing....using Wikipedia as a reliable proof of anything is completely pointless. Wikipedia is full of crap on many, many, many issues because absolutely anyone (even some uneducated dumb-a$$) can go in and edit any topic and add whatever they "believe" is true. I'm sure you could google the octane facts and find whatever the truth is, but trusting Wikipedia is not a reliable source.
true point, but the info is correct.



higher octane doesnt just add power, it allows you to run a higher spark advance allowing you to burn the mixture longer and more completely, which is what leads to the increase in power.
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Old 12-05-2008, 09:21 PM   #22
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true point, but the info is correct.



higher octane doesnt just add power, it allows you to run a higher spark advance allowing you to burn the mixture longer and more completely, which is what leads to the increase in power.
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Don't forget higher compression
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Old 12-05-2008, 09:49 PM   #23
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I'm glad to see that the massive fail in this thread is balanced by a small portion of solid knowledge.

Running 100 octane in a stock motor is a waste of money. It's like running 93 in a car that is built and tuned for 89. Pointless. Absolutely pointless.


However if you really think that 100 octane gives you a performance boost, why don't you try C16?

(Who wants to take bets on how long it takes for someone to actually take my advice and blow a motor?)
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Old 12-05-2008, 10:42 PM   #24
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I'm glad to see that the massive fail in this thread is balanced by a small portion of solid knowledge.

Running 100 octane in a stock motor is a waste of money. It's like running 93 in a car that is built and tuned for 89. Pointless. Absolutely pointless.


However if you really think that 100 octane gives you a performance boost, why don't you try C16?

(Who wants to take bets on how long it takes for someone to actually take my advice and blow a motor?)
Who said we where talking about a stock motor. Yes Unless other wise stated for example Corvette the lowest grade will work due to the fact the factor has set it up for this ie Timing & Compression. If you where to buy a programmer that advances your timing (most due) and run 85 then you are playing with fire.
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Old 12-06-2008, 01:43 AM   #25
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