Originally Posted by TORCHD 02 TA

I have a 228/232 cam in my M6 Trans Am....

When i had my stock 28# injectors babying it on the street i got about 15-16 mpg. On the hwy in 6th gear i got 26 mpg. Now again with my stock 28# injectors my duty cycle was 99%.. Meaning they were spraying ALL THE TIME...... And to a tank of gas i would get about 175 miles to a tank..


Now fast forward to beginning of May. I installed my 42# injectors. I forgot to mention my car is not a DD. But i have not even gone thru a tank of gas but my needle does not move as fast. My duty cycel is now 56% and right now i am almost at a 1/2 tank and i have driven 145 miles. Soo umm yeah you can see i am doing ok. I am hoping to see over 200 with this tank. Somthing i have not seen since i was stock or not driving on the hwy

mods and numbers are in sig

Originally Posted by novaflash2002

with my 04 gto with a a4 auto i get 19.5-22 mpg in town. (thats calc by hand not the one in my gauge cluster). on the hwy i rarly go under 85 mph and i still get 26 with an auto.