2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

High Octane Fuel

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Old Aug 30, 2006 | 01:39 PM
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High Octane Fuel

what is the affects of high octane fuel on a NA FC
Old Aug 30, 2006 | 02:43 PM
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smaller wallet.............where do you drift?
Old Aug 30, 2006 | 03:01 PM
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Given your mods; none.

You don't need higher octane gas, and using it would do nothing, it not harm.
Old Aug 30, 2006 | 03:04 PM
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theres no point in using octane higher than our minimal rating.. it's then just a waste of money.. invest in some high octane when you start modding
Old Aug 30, 2006 | 03:36 PM
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I'm sure he asked for the facts of the affects of higher octance and not all of your opinions... jeez.
Old Aug 30, 2006 | 03:41 PM
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it has no effect on a stock car.............do you want an even MORE detailed explanation??
Old Aug 30, 2006 | 03:46 PM
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Originally Posted by Jigsaw
I'm sure he asked for the facts of the affects of higher octance and not all of your opinions... jeez.
That higher octane gas is usless in an stock N/A FC is a fact.

Lemme rephrase my answer then:

Search. It's been covered, a lot.
Old Aug 30, 2006 | 03:52 PM
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.....if he doesn't like the simplest, correct answer he can always SEARCH the entire database(i;m sure he'll find a buttlaod of threads on this VERY subject).........which, honestly, he should have done to begin with. <edited for flaming>

Last edited by Icemark; Aug 30, 2006 at 07:56 PM.
Old Aug 30, 2006 | 03:59 PM
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from what I have read here...the N/A engine is Best on 85 octane.Since the Pump Gas is 87, then just run that.Unless you have a turbo,you are just wasting Money at the Pump.
Old Aug 30, 2006 | 04:03 PM
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^^^^ [sarcasm/bitchin] but he wanted to KNOW FACTS!!!!!!!!!!!!my vag hurts now[/making fun of the wuss]
Old Aug 30, 2006 | 04:07 PM
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OK, I think we can safely say this thread needs no more replies, unless the OP has another question (that he can't just search for).
Old Aug 30, 2006 | 04:08 PM
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lol....another useless thread on this subject ready to be sent to the archives.......
Old Aug 30, 2006 | 05:52 PM
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octane is the control of the burn of fuel so turbo cars need higher octanes(91). as for YOU a n/a driver, juss get the 87 octane
Old Aug 30, 2006 | 07:19 PM
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I drift out in the cuts on some of our wide intersections and sometimes ill do it if im doing touge but thats usally if i come in way to hott in a turn.

thanks for the feed back just wondering about that
Old Aug 30, 2006 | 07:36 PM
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Originally Posted by gabe30
theres no point in using octane higher than our minimal rating.. it's then just a waste of money.. invest in some high octane when you start modding
gas couldnt really be considered an investment unless you bought a few hundred gallons 5 years ago, stabilized it, and sold it now
Old Aug 30, 2006 | 08:09 PM
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clogged cats, excess carbon, less power would be symptoms. If you don't have a cat, fireballs would be more likely as the fuel takes longer to burn
Old Aug 30, 2006 | 08:21 PM
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I can't stand threads with no real answers.

With stock timing/fuel, 87 is best. The stock engine is too rich without an aggressive enough timing curve, and usually does not benefit from extra octane.

Advance your timing if you really want to use high octane fuel.

If you have the means of adjusting the A/F ratio, then the octane will come in handy to prevent detonation in a leaned out NA.

If you run additional premix with oil metering working, running 88-89 would make up for the premix oil added.

And, step up a grade when using a full bottle of any octane reducing distillate/solvent based FI cleaner.

Octane degrades with time. Vehicles stored should use higher octane fuel and a fuel stabilizer to deal with gum/varnish/moisture.
Old Aug 30, 2006 | 09:05 PM
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meh
Old Aug 30, 2006 | 10:43 PM
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Here we go again, dis on drifting time.
Old Aug 30, 2006 | 11:13 PM
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look, sorry i hurt your vagina earlier.....but quit trying to start ****.
Old Aug 30, 2006 | 11:32 PM
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posted by Icemark:

Do we have to have another thread on this??? The search function is found in the uer right hand corner of the page...

If LittleCon had searched he (or she) would have found that anything more than 87 octane on a stock FC motor actually is more likely to cause problems, and will actually result in less HP.

See the octane rating has absolutely nothing to do with BTU or power output. The only thing higher octane numbers do, is make it harder to pre-ignite. It makes the burn slower. Higher octane does not contain any additional power or performance unless the motor was designed or tuned to run on a higher octane (and even then the additional power is only a result of higher compression or boost along with computr processing).

In fact (more so on a non-turbo) you want the gas to ignite as easy as possible. Lower octane on a rotary with less than a 10:1 compression actually burns cleaner and faster than a higher octane.

So using higher octanes on a stock motor will result in increased deposits on the rotor faces(which could result in pre-mature engine failure), less power, and less money in your wallet.

So why would you waste the money and buy anything but 86 or 87 octane???

And finally, thread closed. Covered and proven countless times before.
Old Aug 31, 2006 | 12:33 AM
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Originally Posted by Madrx7racer
look, sorry i hurt your vagina earlier.....but quit trying to start ****.
Oh belive me, you didnt hurt anything. You are the only one that came off looking like an idiot.
Old Aug 31, 2006 | 12:43 AM
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hahaha......You got butthurt because I was flaming street-racing drifters and without any prior knowledge as to why I felt this way you posted:

"i got a nifty Idea for ya!! LAY OFF DRIFTING "

Once I posted why I felt this way YOU POST:
"Nah, I would much rather sit here and dispute your worthless drivel. You come onto this thread spouting off about homo drifers/etc, and I feel the need to come dispute your bullshit. So you now have my uninterrupted attention. Go ahead, keep up the flaming"

AND NOW I'M the one who looked like an IDIOT???

THEN IN A COMPLETELY DIFFERENT THREAD YOU START TRYING TO RILE ME UP (which isn't working BTW)........


leave me alone old man....You're going senile.

Last edited by Madrx7racer; Aug 31, 2006 at 12:45 AM.
Old Aug 31, 2006 | 12:50 AM
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It obviously is getting you riled up. Thats whats so entertaining!
Old Aug 31, 2006 | 12:52 AM
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i guess..........if it makes you less annoying then yes, I am so mad I'm ranting and raving about how pissed off you've made me.....



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