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cam mpg

This is a discussion on cam mpg within the Internal Engine forums, part of the LSx Technical Help Section category; Imlookn for a mild cam somethin to change the idle a bit and add some power. I was just wondering ...

  1. #1
    Junior Member 99LS1's Avatar
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    cam mpg

    Imlookn for a mild cam somethin to change the idle a bit and add some power. I was just wondering how bad it will affect the mpg. Right now all i got is a slp lid, loudmouth, slp maff. I would get a tune after the cam install.

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    TunedbyFrost.com Tuner Frost's Avatar
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    If you stay reasonable, something like a 224/224 or 224/228 on a 112LSA will have some lope and with proper tuning, you will lose about 2 around town. Highway will be almost the same.

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    Junior Member 99LS1's Avatar
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    ok thats not to bad at all, would i need to put a stall in also?

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    TunedbyFrost.com Tuner Frost's Avatar
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    auto's lose more (converter, rotating mass, etc), and yes, you will both want and NEED a stall. It makes a huge difference itself; I'd do it first.

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    what kinda of mpg are you getting right now? Just curious since my car had a small cam when i bought it.

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    Veteran Hi-Po's Avatar
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    Frosy is right. It really sound slike a 224 is exactly what you want. Or very similar. Will give you a nice increase in power. Two things...

    Get Long tubed Headers, X-H pipe, cat back, true duals, or a mufflex style exhuast. You will be choking that cam to death with zero exhaust improvements

    Also, get rid of the SLP MAF after you do the cam and go to get it tuned. Aftermarket MAFS are junk and usally cause problems.

    Search around for 224 camshafts on the LS1 websites. I think its right up your alley.
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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by 99LS1 View Post
    ok thats not to bad at all, would i need to put a stall in also?
    you also will need headers so you can let the cam breath
    I have a 3000 stall, 224 cam, long tube headers, off road y-pipe, ls6 intake, volant cai and tuning and make 379 rwhp. I lost only 2-3 mpg
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    a few bolt ons, 379 rwhp
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    Junior Member 99LS1's Avatar
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    Quote Originally Posted by nhraformula View Post
    you also will need headers so you can let the cam breath
    I have a 3000 stall, 224 cam, long tube headers, off road y-pipe, ls6 intake, volant cai and tuning and make 379 rwhp. I lost only 2-3 mpg
    Wow got some pretty decent numbers with little mpg loss.That a a4 or m6 ya got?

  9. #9
    Moderator Firebirdjones's Avatar
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    My wifes SS has a very mild Vinci #062 cam. You can check their website for exact specs but it's very similar to a Z06 cam with the lobe seperation tightened up to 112 and other minor changes along with their crane variable ratio rockers.

    Has a very mild lope that still gets stock like gas mileage with 22 around town and 28 on the highway with cruise set at 75-80 mph.

    Whats nice for my wife is that you can still chug this motor down to 800 rpms without bucking or kicking, perfect little cam for her.

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    Member WS6ICK2K's Avatar
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    Quote Originally Posted by 99LS1 View Post
    Wow got some pretty decent numbers with little mpg loss.That a a4 or m6 ya got?
    I am sure its an auto notice the 3k stall mentioned above.

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    Senior Member INMY01TA's Avatar
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    230/236 cam M6 here. Gets about 16mpg city.

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by 99LS1 View Post
    Wow got some pretty decent numbers with little mpg loss.That a a4 or m6 ya got?
    Its a auto. My numbers are more or less average for the set up i have.
    Overall im happy with my set up.

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by nhraformula View Post
    you also will need headers so you can let the cam breath
    I have a 3000 stall, 224 cam, long tube headers, off road y-pipe, ls6 intake, volant cai and tuning and make 379 rwhp. I lost only 2-3 mpg
    just curious, with your numbers are your heads stock or worked over? I have a simular cam with ported and polished heads but haven't got on a dyno yet to get numbers, just lots of street tune time to get her running great

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by mark21742 View Post
    just curious, with your numbers are your heads stock or worked over? I have a simular cam with ported and polished heads but haven't got on a dyno yet to get numbers, just lots of street tune time to get her running great
    stock 241 heads

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by nhraformula View Post
    stock 241 heads
    I couldn't believe how much louder the exhaust was after i port and polished the heads. it was insane just how much metal i got out of them too.

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