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Old 05-27-2013, 07:35 PM   #1
Dropspeed
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LS3 Engine Cover needed?

Is the LS3 engine cover strictly for aesthetic purposes or does it perform a function (to protect the coils??? ect).

Looking for facts not opinions on this one.

Thank you,
Matt
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Old 05-27-2013, 07:42 PM   #2
kjkjr27
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Not sure you are in the v6 section.
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Old 05-27-2013, 07:43 PM   #3
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Cosmetic purposes - and then the plenum cover has insulation on the underside for noise insulation.
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Old 05-27-2013, 08:29 PM   #4
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Quote:
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Cosmetic purposes - and then the plenum cover has insulation on the underside for noise insulation.
That is what I figured. Just didn't know if it served any other protective duties.


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Not sure you are in the v6 section.
Nope, you are in the V8 LS3/ L99 Engine ect section.

Matt
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Old 05-27-2013, 08:39 PM   #5
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Does absolutely nothing except increase heat soak.
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Old 05-27-2013, 10:16 PM   #6
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It has a noise/heat insulator in there. Helps the engine warm up in the cold and masks the noisyness of a pushrod ls motor. I removed mine at delivery to keep the heat out.
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Old 05-27-2013, 10:45 PM   #7
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Thanks....I took mine off before I posted and looked it over. I saw the insulator and figured it was for noise reduction and thought the exact same thing: this thing is just a heat trap!
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Old 05-28-2013, 02:09 AM   #8
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LOL, no offense, but I think some of you guys are a teensy bit paranoid. I doubt that removing that small amount of fabric will have any significant impact on under hood temps especially after driving for more than 20 minutes. And you aren't driving with the hood open, lol!! And whatever heat you possibly are getting rid of, I doubt that will have any impact on performance. Take the cover off and the under hood temps are still gonna be unaffected...and that heat will still get to the engine...
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Old 05-28-2013, 02:33 AM   #9
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It's just cosmetic and may reduce a little engine noise. I took mine off and know of several others that have and have had no problems.
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Old 05-28-2013, 08:43 AM   #10
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LOL, no offense, but I think some of you guys are a teensy bit paranoid. I doubt that removing that small amount of fabric will have any significant impact on under hood temps especially after driving for more than 20 minutes. And you aren't driving with the hood open, lol!! And whatever heat you possibly are getting rid of, I doubt that will have any impact on performance. Take the cover off and the under hood temps are still gonna be unaffected...and that heat will still get to the engine...
If you look at data you would be surprised how little changes can have huge effects. Heat soak for normal driving is not an issue or the concern ...but for a drag racer heat soak can be a big problem as your car is sitting around waiting to make the next pass. For road racing it is also a concern as you come off the track and park the car. Any way to remove trapped hot air is a benefit.

-Matt
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Old 05-28-2013, 09:59 AM   #11
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Quote:
Originally Posted by Dropspeed View Post
If you look at data you would be surprised how little changes can have huge effects. Heat soak for normal driving is not an issue or the concern ...but for a drag racer heat soak can be a big problem as your car is sitting around waiting to make the next pass. For road racing it is also a concern as you come off the track and park the car. Any way to remove trapped hot air is a benefit.

-Matt
I will agree with that. I did not know you were talking about strictly for racing purposes. I was mainly referring to daily driving. In which case I doubt it would have any affect.
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Old 05-28-2013, 11:51 AM   #12
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I leave mine on for looks. Once I go to the drag strip I remove it to help get it to cool down a little quicker. I also removed the intake turtle shell as well for the same thing.
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Old 05-28-2013, 11:56 AM   #13
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Here are my covers (engine and intake cover).
Both covers act like a blanket holding in heat.

Faster cool down with hood open and covers off at the track.

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Old 05-28-2013, 07:25 PM   #14
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I took both mine off as well, paint matched the intake and cut in the Hex Vents. Not a whole lot of heat trapped with this set up. Hell, I don't even use the rain trays that came with the Hex Vents.
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