Heads/Cam/Intake Mani MPG
Mildly ported LS6 heads. Bigger then average sized cam... Torquer 233/239 cam for arguement sake. LS6 Intake, FAST, whichever...
In a 6 speed with stock gears in rear. Driving normal and and not being a jackass. Cruising on the highway in 6th, no mashing it every chance, etc...
Guys still grabbing 20+ mpg? 17mpg mixed driving?
That calculates out to roughly 18 to 23 MPG in mixed driving. You just have to be carefull not to rev to 5K for every shift. I would shift it at 2500 to 3000 and not nail the throttle. I never beat on the car on the street, no point in it, not when Im simply driving to school or something similer. If Im out for fun, then I have DR's on the back and it's a different story.
Once again, 4:11's in a 6spd car with 450RWHP Heads/Cam and 30# injectors. CARTEK's set-ups have always been very efficient on fuel in standard driving conditions. Even now making 507.9RWHP in H/C with 4.56's im getting roughly 23mpg on the highway and 17 in city. But at the track I only get about 7 - 9 passes to a 1/4 tank LOL That is 2-mpg... BIG difference LOL



