Drag Racing ?

Psychojimmy · September 16th, 2007, 03:23 PM

What is the highest octane I should run in a stock 5.0 with exhaust ? And what are the optimal shift points for drag racing on 88 GT Hatch?

sivart · September 16th, 2007, 03:27 PM

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

1slo5.0 · September 16th, 2007, 09:14 PM

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.

Psychojimmy · September 17th, 2007, 09:29 AM

Cool deal thanks for the input guys!

September 16th, 2007, 03:23 PM	#1
Psychojimmy Regular Join Date: Aug 2007 Location: San Diego,CA Posts: 140 iTrader: 0 reviews	Drag Racing ? What is the highest octane I should run in a stock 5.0 with exhaust ? And what are the optimal shift points for drag racing on 88 GT Hatch?

September 16th, 2007, 03:27 PM	#2
sivart Regular Join Date: Feb 2007 Location: middle GA Posts: 301 iTrader: 0 reviews	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 __________________ 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.

September 16th, 2007, 09:14 PM	#3
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	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. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

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September 17th, 2007, 09:29 AM	#4
Psychojimmy Regular Join Date: Aug 2007 Location: San Diego,CA Posts: 140 iTrader: 0 reviews	Cool deal thanks for the input guys!

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