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09-06-2017, 06:40 PM | #1 |
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Join Date: Jun 2017
Location: Central illinois
Posts: 143
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Re: Cam vs mpg
Well I was really wanting to put a bigger cam in it so I could get that lopy idle sound I like so much and not lose performance.
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09-06-2017, 08:49 PM | #2 |
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Location: Henderson NC
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Re: Cam vs mpg
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09-06-2017, 09:04 PM | #3 |
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Location: Central illinois
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Re: Cam vs mpg
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09-07-2017, 08:52 PM | #4 | |
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Join Date: May 2016
Location: Henderson NC
Posts: 975
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Re: Cam vs mpg
Quote:
If you want a big lopy cam get a light weight car and build you a drag racer. If you want a good cruising truck with power in the low rpm range where you need it leave your motor alone. |
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09-07-2017, 09:39 PM | #5 | |
laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
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Re: Cam vs mpg
Quote:
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09-07-2017, 11:25 PM | #6 |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
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Re: Cam vs mpg
You just have to ask yourself if having that lopey idle is worth loosing maybe 5 mpg's or more depending on the cam.
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09-08-2017, 02:13 AM | #7 |
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Re: Cam vs mpg
After listening to these guys the 210-218 total lift at .526-.522 sounds like I would be losing out on mileage without gaining much if anything.
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09-11-2017, 04:31 PM | #8 | |
motor exploder
Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 2,346
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Re: Cam vs mpg
Quote:
You might be able to tell that it has a mild cam, but definitely not the fender shaking crackle/thump/lope that you might be hearing in your head. Just leave it like it is and enjoy a reliable daily driver with the good mpg you're getting now.
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09-11-2017, 04:57 PM | #9 | |
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Re: Cam vs mpg
Quote:
I would hope that engineering's first priority would be HP/Torque at WOT then mileage on light throttle similar to a VVT tuned engine would be. I know some are ground this way yet there is a ton to understand to get there. |
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09-07-2017, 07:14 AM | #10 |
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Join Date: Oct 2013
Location: Maine
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Re: Cam vs mpg
I lean out the idle circuit a little bit to roughen the idle a tad to imitate a big cam. It sounds cool idling through the fairgrounds. As soon as I touch the gas it's smooth as silk though. I have about the same cam with 3.08's in my truck and Impala. This is on my hot rod Impala not my work trucks though.
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