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Joined: Aug 2001
Posts: 9
Junior Member
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Junior Member
Joined: Aug 2001
Posts: 9 |
Do any of you guys understand what octane rating is and why we (SVT at least) have to run higher octane gas in our cars. The answer is simple, the compression ratio is too high to run lower octane gas. The octane rating is simply a measure of gasoline's resistance to detonate. Since higher compression will cause detonation, you have to run a higher octane, and filling up with higher octane than necessary doesn't improve performance...it may run a little cleaner because those grades are usually more refined, but you're not going to see any noticeable improvement.
Todd Brittingham
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Joined: Apr 2001
Posts: 332
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OP
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Joined: Apr 2001
Posts: 332 |
I try to run stuff like that sparingly, but I DO notice a difference when I run it, and when I don't. Just looking for others opinions.........
2000 SVT Contour
#1875 of 2150
9mm Motorsport wires (Bill rules!)
KKM
1999 Mondeo Optional Shift knob
Drilled aluminum pedals
"minor" audio upgrades
"Don't take life too seriously....you aren't going to survive it anyway."
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Joined: Mar 2001
Posts: 4,899
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Joined: Mar 2001
Posts: 4,899 |
Guys, octane is simply a rating that describes its tendency to knock or ping. Unless you need it, you're wasting time running high-octane fuel. Contrary to popular belief, there are no 'additives' to clean injectors, etc.
Dan Parmelee
1999 Acura Integra SiR-G coupe
"I heard Affleck was the bomb in Phantoms"
"Word, bitch! Phantoms like a muhfuka"
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Joined: Jun 2000
Posts: 3,562
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Joined: Jun 2000
Posts: 3,562 |
I'd imagine nothing but good will come of running them on my 11.2:1 compression 3 liter, or in Worldtour's (or anyone else's) SC application, but on anything else gains would be minimal. Some of the people with chips may notice a gain alos due to some of the programs being overly aggressive with the timing...
Brad Noon '99 SE MTX 3 point oh my God H.O. 179HP/178TQ BNMotorsports Floormats, powder coating, TB optimizing, Gutted cats, etc BNMotorsports is now the preferred distributor of Contour/SVT/Mystique Indiglo style gauges!!!bnmotorsports@msn.com
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Joined: Nov 2000
Posts: 546
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Joined: Nov 2000
Posts: 546 |
I started running 93 2 weeks ago im my Zetec. Runs so much smoother now.
Nick F.
01 Focus ZX3 MTX
borla, eibach pro kit and dampers, dual guage pod (a/f and volt), jvc kd-sh99
96 Contour GL atx-zetec
Yes its a zetec, we were here before vtec, so we are not copying!
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