











Another cam vs. mileage thread
228/232 with anywhere from 11-15 (that's an amazing day) in the city and 20-23 hwy.
What sounds about right?
Last edited by Vrbas; Oct 31, 2008 at 02:24 PM.
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stock ex: 230 mi/wk = 12k mi/yr
avg mpg = 22 mpg
est fuel cost = 545.45 gal * price of gas (est $2.499) = $1,363.09
vs
big cam ex: 230 mi/wk = 12k mi/yr
avg mpg = 17.5 mpg (14 cty + 21 hwy)
est fuel cost = 685.71 gal * price of gas (est $2.499) = $1,713.60
DIF = $350.51 gas/yr which is only $6.74/wk
...so as u can see, it's not that big of a DIF...
(figures are for entertainment purposes)
stock ex: 230 mi/wk = 12k mi/yr
avg mpg = 22 mpg
est fuel cost = 545.45 gal * price of gas (est $2.499) = $1,363.09
vs
big cam ex: 230 mi/wk = 12k mi/yr
avg mpg = 17.5 mpg (14 cty + 21 hwy)
est fuel cost = 685.71 gal * price of gas (est $2.499) = $1,713.60
DIF = $350.51 gas/yr which is only $6.74/wk
...so as u can see, it's not that big of a DIF...
(figures are for entertainment purposes)
By those figures, it is a 25.7% increase in fuel consumption BTW. So while $6.74 a week extra doesn't sound like much, it is a healthy increase!

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TR224-112 with a m6. It's all in the tune for the mileage on highway, it takes very little power to maintain highway speed, so all you need to make sure of is that in those lower cruising rpm, that you get the timing up as high as it can go and lean it out as much as possible. Also if you managed to keep EGR on the car, then you get to eek out even more timing. That's how I've managed to keep my highway mileage up there with stock despite being cammed, with full bolt ons.
well the mileage does not suffer as much on "long drives" i.e. highway, so it wont be a big concern if you do alot of highway to moms house.
Get the cam and adapt your driving style.
Why is there a cam in your sig? Already installed??!! LOL








