High octane dangers?
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Joined: Jan 2008
Posts: 80
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From: monroe nc
High octane dangers?
To start off i have a 99 FRC. It has a custom grind cam with afr heads, slp headers, slp loudmouth exhaust and no cats. Currently it is tuned to 93 octane. Currently the car is putting down around 460-470 whp. i have been wanting to try a higher grade octane and see if it ran any better/felt any stronger. Although i have heard putting anything above 93 octane will make the car run like ****. Is there any danger in say trying to run 105 octane in the car?
any help would be awesome.
any help would be awesome.
Melting Slicks
Joined: Nov 2003
Posts: 2,887
Likes: 2
From: Macomb MI
St. Jude Contributor
If your tuner adjust your car for 93 octane, I can't see adding 105 would give you much without retuning for it. Unless it's on a hot day and your tune is just on the edge.
Le Mans Master
Joined: Jan 2002
Posts: 7,275
Likes: 19
From: Camden County NJ
The highest octane you can get (unleaded race fuel) is 103...105 is leaded and will screw up your emission sensors. I run 103 when I'm on the track for cheap insurance when I'm running the car hard. Other than that your wasting your money to cruise around the streets with race fuel not to mention at 10/gal....get the picture!
Le Mans Master
Joined: Jul 2005
Posts: 7,121
Likes: 3
From: Shreveport/Bossier Louisiana
St. Jude Donor '08
The highest octane you can get (unleaded race fuel) is 103...105 is leaded and will screw up your emission sensors. I run 103 when I'm on the track for cheap insurance when I'm running the car hard. Other than that your wasting your money to cruise around the streets with race fuel not to mention at 10/gal....get the picture!
