Cadillac CTS-V 2004-2007 (Gen I) The Caddy with an Attitude...

MPG's ridiculous after cam install....

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Old 04-06-2011, 12:01 PM
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Default MPG's ridiculous after cam install....

Mods in sig.

I'm getting 10mpg city driving and about 18-20 on the freeway. Is this a joke? $15-20 a day to drive from A to B????

If this is how it is, I will deffinatley be getting rid of this car...
Old 04-06-2011, 12:02 PM
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I assume you got a tune afterwards?
Old 04-06-2011, 12:14 PM
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Originally Posted by Chris0nllyn
I assume you got a tune afterwards?

Of course..
Old 04-06-2011, 12:20 PM
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Damn! That's really bad. Get you a turbonator! Lol
Old 04-06-2011, 12:26 PM
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they can retune it for better mpg.. you just have to find a tuner who is willing to put in the time. most of them only tune for WOT pulls and idle adjustments.
when i put the maggie on mine i was about the same 10mpg, after playing with the tune im up to 15 city and 21-23 highway
Old 04-06-2011, 12:28 PM
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Maggied and Cammed and still able to pull 24 on the HWY... Tune Re-do!
Old 04-06-2011, 12:31 PM
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Originally Posted by greddy91
Maggied and Cammed and still able to pull 24 on the HWY... Tune Re-do!
That's the thing. He spent prolly 30-40 minutes on the dyno in part throttle going through the gears. He only did 3 WOT pulls.

I'm gonna talk to the shop today and see what's up.
Old 04-06-2011, 12:34 PM
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my average has always been hovering around 12.5
Old 04-06-2011, 12:40 PM
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The highway mileage seems a bit low. Are you saying that on a flat stretch of road cruising in 6th you are only getting 19-20? Or is that the average based on a highway road trip?
Old 04-06-2011, 12:45 PM
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I get about 20mpg for HWY driving in my 2009 V.
Old 04-06-2011, 12:48 PM
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cant expect to have big power and use the gas of a GEO
Old 04-06-2011, 01:02 PM
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Originally Posted by madmike9396
cant expect to have big power and use the gas of a GEO
Did I say I wanted 40mpg's? My buddies Viper gets better mileage!!
Old 04-06-2011, 01:08 PM
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still... according to most people, they get around 27mpg with the stock cam. So that's like a 25% reduction in fuel economy he's experiencing with just a cam.
Old 04-06-2011, 01:10 PM
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jesus, if my mileage is gunna suffer like that there is no way im going big cam now
Old 04-06-2011, 01:31 PM
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Originally Posted by safemode
still... according to most people, they get around 27mpg with the stock cam. So that's like a 25% reduction in fuel economy he's experiencing with just a cam.
The most I've gotten on a road trip is 23mpg...
Old 04-06-2011, 01:41 PM
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bigger cam= more air, more air = more fuel... i get 25mpg highway my buddies ls2 maggied gto gets 23 on the high way cuz he aint using the blower at cruise speed....that cam how ever is all the time...cammed cars are not ment for long trip daily's
Old 04-06-2011, 01:45 PM
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Probaly needs a good tune
Old 04-06-2011, 01:46 PM
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Originally Posted by 06killerv
bigger cam= more air, more air = more fuel... i get 25mpg highway my buddies ls2 maggied gto gets 23 on the high way cuz he aint using the blower at cruise speed....that cam how ever is all the time...cammed cars are not ment for long trip daily's

Hey! Thanks for that break down there! I've never thought of it that way........................

If anyone thinks 10mpg is acceptable because they put a cam in their car, please dont post in this thread.
Old 04-06-2011, 01:48 PM
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i was just giving what lots of people were reporting for their cts-v's in actual measured highway mileage via google search on other forums. there were many in the 28mpg range.
Old 04-06-2011, 01:53 PM
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Originally Posted by safemode
i was just giving what lots of people were reporting for their cts-v's in actual measured highway mileage via google search on other forums. there were many in the 28mpg range.
I would be in love if this were the case for me... Lol


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