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Discussing Tuned for 87 / 91 - Advantages? in the 2005+ Forum. I have sct tunes for the different octanes, but am curious as to the advantages ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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June 26th, 2007, 09:09 PM
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#1 |
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Newbie
Join Date: Jun 2007
Location: Morgan Hill, CA
Posts: 12
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Tuned for 87 / 91 - Advantages?
I have sct tunes for the different octanes, but am curious as to the advantages of running 91 over 87. Better performance? Economy?
chris
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2007 GT/CS [vert, black], JLT CAI, SCT LiveWire, FRPP/Borla Axleback |
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June 26th, 2007, 09:12 PM
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#2 |
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All Throttle with a Bottle
1996 Mustang GT
12.91@105.29 @ 5800 FT
Join Date: Dec 2006
Location: Lakewood, CO
Posts: 7,608
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better performance for sure!!
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June 27th, 2007, 07:47 AM
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#3 |
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Regular
Join Date: May 2007
Location: Wisconsin
Posts: 122
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Usually higher octane fuels depending on their ratings have a higher burning speed and a higher required temp for combustion. This produces more power in less time and for forced induction and high horsepower apps which raise operating temps, these fuels won't detonate early within the engine.
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Ford Racing heads, Comp stage III cams, 4.10's, Steeda delete plates, SLP long tube headers, Custom 3'' X pipe, Magna flow 3" Magnapacks, Airaid CAI, SCT XCAL 2 93 tune, Steeda front and rear swaybars, Dynotech aluminum driveshaft, HTP TB spacer |
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June 27th, 2007, 11:33 AM
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#4 |
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Hardcore Enthusiast
Join Date: Feb 2007
Location: Vineland, NJ
Posts: 2,916
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if you put in a 89 octane tune and running 93 octane gas will it mess up the car? i kno if i ran a 93 tune with 89 gas it will mess things up but just curious about it the other way around
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June 27th, 2007, 06:47 PM
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#5 |
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Pooperscooper Winner
2006 Nissan 350Z
Join Date: Dec 2006
Location: Central Florida
Posts: 1,152
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no it won't mess up your car. it would be a waste of money to do though. only do the octane you've tuned for. it will mess it up if you do the other way around.
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