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Discussing Drag Racing ? in the 5.0 Mustangs Forum. What is the highest octane I should run in a stock 5.0 with exhaust ? ... 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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#1 |
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Regular
Join Date: Aug 2007
Location: San Diego,CA
Posts: 140
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Drag Racing ? |
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#2 |
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Regular
Join Date: Feb 2007
Location: middle GA
Posts: 301
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highest? you could run 102 if you wanted but around town you can run 87, if you dont have ur timing advanced. shift points....id say shift like around 5000 - 5300
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I just read an article about the dangers of drinking ... And it scared the crap out of me. So that's it............... After today, NO MORE READING. |
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#3 |
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Feb 08 ROTM
1990 Mustang LX
9.36@143 mph
Join Date: Jan 2006
Location: Fond du Lac, Wisconsin
Posts: 7,025
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Anything more than 91-93 octane is only going to hurt your performance. If the engine doesn't need the octane, the additional octane will not help. Octane doesn't add horsepower, it only resists detonation better. Shift around 5500 rpm.
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Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration ![]() Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft |
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#4 |
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Regular
Join Date: Aug 2007
Location: San Diego,CA
Posts: 140
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Cool deal thanks for the input guys!
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