just wanted to know if i installed 40 lbs injectors will that affect my gas mileage, or performance. i have a 1990 5 speetd gt, 75 maf, 75 throttle body, and off road x pipe.
I have a B cam,a GT 40 intake and just installed the Tri stste heads (5.0 X heads). Will the stock 19's be sufficient or will I nead to upgrade? I saw a 0.4 improvement in ET and a gain of 4 mph after the head install.
I have a B cam,a GT 40 intake and just installed the Tri stste heads (5.0 X heads). Will the stock 19's be sufficient or will I nead to upgrade? I saw a 0.4 improvement in ET and a gain of 4 mph after the head install.
Quote:
Originally Posted by cindys_sn95
daddy, your are just like me. right on the border. try 24s and see if they help, you can always go back.
What he said.....
24's will work for you but you don't need anything bigger.....
__________________
Reggie
Real Racers Don't Street Race
PERIOD.......
'88 LX Hatch With A Little Of This & A Little Of That...... 10.39 @128 MPH Soon to be faster....
24lbs +2 on that one....40lbs is just way too much. I'm going to go 42lbs with boost
__________________
1990 convertible, BBK CAI, Aluminum radiator, high-flow water pump, Tri-Ax short shifter, adjustable clutch cable with aluminum quadrant. In the garage working on the turbo kit.
1989 Hatback, BBK CAI, BBK equal lenght headers, aluminum radiator, high-flow water pump, aluminm driveshaft, short shifter, off road h-pipe and 44 flowmasters. Daily driver...getting 14 mpg YAYA!!!
Injectors don't make power, they support your engine's ability to make power.
If those parts you've mentioned are all you have, you're no where near needing 40's. You have 24, 30, 36, and 38 pound injectors before you get there so you have a ways to go.
To answer the other question, 40's would put a serious dent in your gas mileage.
__________________
MOOG Certified Tech. For mods and sound clips, see profile and gallery.
Ask me why I ran "only" a 13.54.
Member: NMRA Member: White Mustang Registry #362 Member: Fuzzy Dicer
just wanted to know if i installed 40 lbs injectors will that affect my gas mileage, or performance. i have a 1990 5 speetd gt, 75 maf, 75 throttle body, and off road x pipe.
if you run 40 lbs injectors, I don't even think your car would run, you need a good air to fuel ratio. the only way you would need 40 lbs injectors is if you are running a big single or twin turbo setup or a nice size super charger
big fuel injectors affect gas mileage? 
