higher octane?

cobrayankee · 08-07-2000, 12:37 PM

I recently read an article on the different octane gases and which is the best for your car. I never gave it much thought until I read it but has anyone tried the 100+ octane that Sunoco sells, or antone sells for that matter. I just wanted to know if it was worth the cost for a mildly modified Cobra. Maybe one of you guys have tried it already. Any inputs would help!

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cravnpup · 08-07-2000, 12:42 PM

The octane rating is only a measure of the gasolines' resistance to knocking (read detonation). Most regular pump gas will suit all but supercharged or high compression motors. 100+ octane is not necessary or beneficial for mostly stock motors running the stock timing. If you were to increase the compression ratio, supercharge, or advance the timing on your stang, only then would it be necessary to consider using a higher octane gasoline. I hope this answers your question.

------------------
2000 GT Conv. 5speed
Triple Black
Current Mods: K&N
Future Mods: Too Many to list

cobrayankee · 08-07-2000, 12:59 PM

Yeah, they mentioned it was all about the compression ratio. Thanks.

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1997 Cobra, C+L 80mm MAF, Pro 5.0 shifter, BBK Springs, Taylor Wires, 2 Chamber Flows, 3.73's

King Snake · 08-08-2000, 11:34 AM

Hey Cobrayankee, how do you like your 3.73s? I am having some put in mine next week. What are you rpms at 60 MPH in Fifth?

Thanks.

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'97 Cobra, K&N, Rio Red

08-07-2000, 12:37 PM	#1
cobrayankee Registered Member Join Date: Jul 2000 Location: Baltimore, MD Posts: 516	higher octane? I recently read an article on the different octane gases and which is the best for your car. I never gave it much thought until I read it but has anyone tried the 100+ octane that Sunoco sells, or antone sells for that matter. I just wanted to know if it was worth the cost for a mildly modified Cobra. Maybe one of you guys have tried it already. Any inputs would help! ------------------

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08-07-2000, 12:42 PM	#2
cravnpup Registered Member Join Date: Aug 2000 Location: Torrington, CT, USA Posts: 145	The octane rating is only a measure of the gasolines' resistance to knocking (read detonation). Most regular pump gas will suit all but supercharged or high compression motors. 100+ octane is not necessary or beneficial for mostly stock motors running the stock timing. If you were to increase the compression ratio, supercharge, or advance the timing on your stang, only then would it be necessary to consider using a higher octane gasoline. I hope this answers your question. ------------------ 2000 GT Conv. 5speed Triple Black Current Mods: K&N Future Mods: Too Many to list

08-07-2000, 12:59 PM	#3
cobrayankee Registered Member Join Date: Jul 2000 Location: Baltimore, MD Posts: 516	Yeah, they mentioned it was all about the compression ratio. Thanks. ------------------ 1997 Cobra, C+L 80mm MAF, Pro 5.0 shifter, BBK Springs, Taylor Wires, 2 Chamber Flows, 3.73's

08-08-2000, 11:34 AM	#4
King Snake Registered Member Join Date: Jan 2000 Location: Warner Robins, GA, USA Posts: 210	Hey Cobrayankee, how do you like your 3.73s? I am having some put in mine next week. What are you rpms at 60 MPH in Fifth? Thanks. ------------------ '97 Cobra, K&N, Rio Red