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Hozer 88GTConv · 01-06-2003, 10:22 AM

I understand what you are after but I had to experience this to really grasp it.
If you increase airflow and maintain the optimum constant air/fuel mixture you are going to burn more fuel.
Once you make the leap to heads, you will probably see a noticeable reduction in mileage, depending on how you drive of course. The more time you spend at WOT, the greater the affect on mpg.
I know this is basic, just don't kid yourself. I get on it every time I drive it, and spend my highway time around 90 mph. I also let my car warm up more often than not for around 5 minutes or so in the morning.
I'm lucky if I get 16 mpg...but damn it's fun

01-06-2003, 10:22 AM	#10
Hozer 88GTConv Registered Member Join Date: Feb 2002 Location: Jacksonville, FL Posts: 706	O2 + fuel = power I understand what you are after but I had to experience this to really grasp it. If you increase airflow and maintain the optimum constant air/fuel mixture you are going to burn more fuel. Once you make the leap to heads, you will probably see a noticeable reduction in mileage, depending on how you drive of course. The more time you spend at WOT, the greater the affect on mpg. I know this is basic, just don't kid yourself. I get on it every time I drive it, and spend my highway time around 90 mph. I also let my car warm up more often than not for around 5 minutes or so in the morning. I'm lucky if I get 16 mpg...but damn it's fun __________________ 1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy