Thread: Engine Covers, better on or off?

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  1. #1 Engine Covers, better on or off? 
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    Been looking for an answer to this but can't really find anything. I notice members on here not using their engine covers and was wondering if there was a proven benefit to this? I'm sure most are due to running intercoolers and clearance issues. But on stock blower setups does this help? Like with heat soak on hotter days and such? Also my car is a Daytona and has the vented hood, During warmer weather will it hurt to run without the intake tubing. Mines useless since I installed my intake.
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  2. #2 Re: Engine Covers, better on or off? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    I'd use it in the winter, traps more heat in the engine bay.

    In the summer removing it would let heat get away faster.

    Thats how I look at it.

    SMGPFC Member #1
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  3. #3 Re: Engine Covers, better on or off? 
    I live here. Slick2500's Avatar
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    What intake tubing are you talking about?
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  4. #4 Re: Engine Covers, better on or off? 
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    The "ram air" tubing that goes from the vents in my hood to the old stock intake.
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  5. #5 Re: Engine Covers, better on or off? 
    I live here. Slick2500's Avatar
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    I was not aware that the Daytona had that. I knew it had heat extractors in the hood with a drip tray.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  6. #6 Re: Engine Covers, better on or off? 
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    Hell that might be all it is. I've only looked at it for a whole second when I had the hood open to replace a idler pulley. I thought I read somewhere that t attached to the stock intake to give it a little more performance over stock. I'm not sure on that though because the car already had what was on it when I bought it. I've literally opened the hood 3 times on this car, once to see what motor was in it. Second to see why it didnt build boost one day one the way to work, and third was to fix it. Its only drove a handful of miles a week because I don't want to hurt it with this weather we're having and on top of that I've barely had it two months.
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  7. #7 Re: Engine Covers, better on or off? 
    I live here. Slick2500's Avatar
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    I think you are thinking of the GTX Ram Air hood, and the amount of power that is gained from that is slim to none.
    I recommend you read this thread http://www.grandprixforums.net/threa...ommon-problems and this one http://www.grandprixforums.net/threa...00-Powered-Car!! before you get too far into things.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  8. #8 Re: Engine Covers, better on or off? 
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    Noted. Thank you. Its currently on jackstands right now waiting on hub assemblies to get here so I'll crawl around the checklist there and see what else is going on.
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  9. #9 Re: Engine Covers, better on or off? 
    GXP Level Member GTPpower's Avatar
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    I picked up 10rwhp by taking my engine cover off.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  10. #10 Re: Engine Covers, better on or off? 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    Quote Originally Posted by gtppower View Post
    i picked up 10rwhp by taking my engine cover off.
    hahaha
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  11. #11 Re: Engine Covers, better on or off? 
    GTX Level Member nos4blood70's Avatar
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    Quote Originally Posted by GTPpower View Post
    I picked up 10rwhp by taking my engine cover off.
    See, you could get more if you tuned for it.
    -Carl
    "Penelope" - 145k Miles 2003 Bonneville SLE


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  12. #12 Re: Engine Covers, better on or off? 
    Killa Bee Scottydoggs's Avatar
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    my came with it missing already. so someone long ago thought it looked better with out it.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  13. #13 Re: Engine Covers, better on or off? 
    Solving problems BrandonHall10's Avatar
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    I pulled mine just for aesthetics. I prefer looking at the mechanics of the engine. A big slab of shiny black plastic does nothing for me.
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  14. #14 Re: Engine Covers, better on or off? 
    GTX Level Member hensleya1's Avatar
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    Off, on all of my 3800's. Those engines make plenty of heat as it is. In fact, I've never had a problem with a 3800 not warming up.... quite the obverse, actually.
    2003 GT Limited Edition 199k - The $600 winter beater.
    2004 Buick LeSabre 172k - Top Swapped, 3.5 pulley, 1.9 rockers, SLP headers... still slow...
    MAKE AMERICA FAST AGAIN!
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  15. #15 Re: Engine Covers, better on or off? 
    GrandPrix Junkie HighOctaneRacing's Avatar
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    I highly doubt the engine cover makes a big difference in temps. Somebody with the time and equipment should do a test on this
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  16. #16 Re: Engine Covers, better on or off? 
    I live here. ericspecullaas's Avatar
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    why does these thread keep comming up all the dam time? google is your friend.
    im a cookie again yay me
    Quote Originally Posted by Bio248 View Post
    please learn to forum better.
    ^^new favorite quote
    Quote Originally Posted by Kilroy View Post
    It is a type of spiced shortcrust biscuit.
    only one person looked it up lol
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  17. #17 Re: Engine Covers, better on or off? 
    I Write E85 Stickies Frosty's Avatar
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    Take the stupid cover off. All it does is trap moisture and heat against the electronics and whatnot. It also tends to catch fire. Its a beauty cover and serves no real purpose.
    "Lets just throw more boost at it and see what happens" -Frosty
    The Defacto Guide to tuning your car for E85. Read it and learn.



    I love Decker<3
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