INTAKE MANIFOLD COVER REMOVE FOR PERFORMANCE - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ablackburn99 · 07-21-2010, 01:58 PM

I was wondering if anyone new the purpose for the two intake manifold covers, and fabric liner on bottom side of the hood other the cosmetic apperance.

Do you think it is to keep the heat in for winter or sound deadning?

1. black and silver or painted to match piece on top w/ fabric on bottom side. 5 lbs

2. black piece the follows the contour of intake underneath the top one.

*GTAHVIT* · 07-21-2010, 02:00 PM

Maybe some sound deadening.... but mostly it's for looks.

GMRULZ · 07-21-2010, 02:12 PM

The fake intake cover ie.. clamshell is to keep you from hearing the valvetrain that is very noisy that everyone complains about on the older ls motors. the engine cover is mostly for appearance.

lock · 07-21-2010, 02:18 PM

I can clearly notice the increased noise from the motor with the cover off.

4xchamp · 07-21-2010, 06:22 PM

I ran mine with the cover off for a short while , then decided the cover was there to insulate the intake from engine compartment heat so I reinstalled it .

Eric Baker · 07-21-2010, 06:44 PM

And the hood liner is there mostly for noise reduction into the cabin.

69lt1bird · 07-21-2010, 07:19 PM

The covers are there for sound deadening. The intake cover does not protect the intake from heat, it would retain heat. It muffles the injectors pulses and valve train noises.

The reason car weights as much as it does is because of the added sound deadener, insulation etc. Its amazing how that stuff all adds up.

My friends shop saw a huge timing full with the big cover on the engine from heat soak.

MaroSS · 07-21-2010, 07:27 PM

So it's actually ok to take off both of these covers?

*Mr. Wyndham* · 07-21-2010, 07:29 PM

Quote:

Originally Posted by 69lt1bird

The covers are there for sound deadening. The intake cover does not protect the intake from heat, it would retain heat. It muffles the injectors pulses and valve train noises.

The reason car weights as much as it does is because of the added sound deadener, insulation etc. Its amazing how that stuff all adds up.

My friends shop saw a huge timing full with the big cover on the engine from heat soak.

Quote:

Originally Posted by MaroSS

So it's actually ok to take off both of these covers?

Yes, it is! As long as you don't mind a little added noise.

camaro1 · 07-21-2010, 09:20 PM

also do the heater hose mod, re-route the heater hoses off the top intake!

Josh @ Spartan LSX · 07-21-2010, 11:32 PM

Those 2 covers are completely useless and YES, they do rob power due to heat soak. Take them off. I removed them on all L92/LS3 powered cars.

JS · 07-22-2010, 12:33 AM

I said this 4 months ago when we tested on the dyno
ITS CALLED COMMEN SENSE

SGOS252382 · 07-22-2010, 06:23 AM

Hey, those are my intake covers laying on my driveway.

I took them both off a while back (and took a pic) at the advice of my tuner.

The intake cover (small cover) has insulating foam that definately acts like a blanket.
The day we took the engine cover off my car (hot engine after driving 100 miles in 90 degree heat) a big rush of hot air came out from under it.

But as far as increasing HP (I dought it). But I do believe the engine will cool down faster with the covers off (especially at the track with the hood open).

gisbert.j.hanft · 01-29-2014, 10:42 PM

How do you remove iNtake cover there's so many bolts and screws and wires going everywhere

07-21-2010, 01:58 PM	#1
ablackburn99 Drives: 2010 CAMARO 2SS/RS LS3 VR Join Date: Mar 2010 Location: Pittsburgh, PA (Baldwin) Posts: 79 View My Garage	INTAKE MANIFOLD COVER REMOVE FOR PERFORMANCE I was wondering if anyone new the purpose for the two intake manifold covers, and fabric liner on bottom side of the hood other the cosmetic apperance. Do you think it is to keep the heat in for winter or sound deadning? 1. black and silver or painted to match piece on top w/ fabric on bottom side. 5 lbs 2. black piece the follows the contour of intake underneath the top one. Attached Images

07-21-2010, 02:00 PM	#2
GTAHVIT Blessed Drives: 2013 Sonic RS MT Join Date: Dec 2007 Location: Saint Augustine FL Posts: 28,444 View My Garage	Maybe some sound deadening.... but mostly it's for looks. __________________ Click image to see build thread. PQ - "the love of cars. It's a boys first step toward manhood and a mans last hold on boyhood." Fbodfather - "We do not want to use the Z28 moniker on a car that does not deserve this hallowed name." The_Blur - "Let's not confuse competitors with equals."

07-21-2010, 02:12 PM	#3
GMRULZ Drives: 2010 SS & 2008 C6 Join Date: Mar 2008 Location: VA Posts: 1,819	The fake intake cover ie.. clamshell is to keep you from hearing the valvetrain that is very noisy that everyone complains about on the older ls motors. the engine cover is mostly for appearance. __________________ 2010 SS L99, 536rwhp 10.843@126.72. Whipple Supercharger stock pulley, ARH 1 7/8 longtubes w/ catted xpipe, magnaflow 3" mufflers, ADM Race CAI, 3:70 gears, lightweight wheels and nitto drag radials. Stock internal L99, stock converter. Bolt on best before blower 12.22@113.29 w/ nothing but ARH headers, catted x-pipe, ADM CAI and a tune on stock Pzero`s! Other car 2008 C6 Ls3, z51, A6, Npp Exhaust, best bonestock pass 11.80@118.82, Number 2 on the Corvette Forums Bonestock fastest list..

07-21-2010, 02:18 PM	#4
lock Drives: 11 2SS/RS E-Force Supercharged Join Date: Apr 2010 Location: Charlotte Posts: 814 View My Garage	I can clearly notice the increased noise from the motor with the cover off. __________________ 11 IOM 2SS/RS E-Force Supercharged. 616 RWHP/578 RWTQ. Click link for my journal!!!

07-21-2010, 06:22 PM	#5
4xchamp MURC 666 Drives: 69 Pace Car 68 Camaro Restomod 81 Z Join Date: Jan 2010 Location: New England , U.S.A. Posts: 480	I ran mine with the cover off for a short while , then decided the cover was there to insulate the intake from engine compartment heat so I reinstalled it . __________________ Guys hoarding their Camaros are depriving some youngster the opportunity to restore it 25 years from now . Drive it like you stole it , let the next guy baby it !

07-21-2010, 06:44 PM	#6
Eric Baker Drives: Black/Black 2SS/RS 6M Join Date: Mar 2010 Location: Boston MA Posts: 987 View My Garage	And the hood liner is there mostly for noise reduction into the cabin.

07-21-2010, 07:19 PM	#7
69lt1bird Drives: 1969 Pontiac Firebid Join Date: Aug 2009 Location: Lapeer, MI Posts: 89	The covers are there for sound deadening. The intake cover does not protect the intake from heat, it would retain heat. It muffles the injectors pulses and valve train noises. The reason car weights as much as it does is because of the added sound deadener, insulation etc. Its amazing how that stuff all adds up. My friends shop saw a huge timing full with the big cover on the engine from heat soak. __________________ Free HP Tuners Beginners Tuning Guide Michigan Snowmobiler 1969 Firebird: 7.55@97.93 1/8 1.70 60 ft.[/COLOR] EPS cam 234/246 .602.606 114+3, 6.0 LQ4, L92 heads milled 10.5:1, Ported L76 intake, ported 90mm Holley TB, 100mm MAF, FIC Custom injectors, Hooker LT, PYPES dual exhaust with an X pipe, 4L65e with all of the good parts inside, FTI 4000 RPM Stall, 12 bolt with 3.73 gears. HP Tuner tuned by me

07-21-2010, 07:27 PM	#8
MaroSS ZL1 Drives: 10' SS/RS - Sold; 15' White ZL1 Join Date: May 2009 Location: Harbor City, CA Posts: 683 View My Garage	So it's actually ok to take off both of these covers? __________________

07-21-2010, 09:20 PM	#10
camaro1 Drives: 550+RWHP 2010 camaro Join Date: Sep 2007 Location: wisconsin Posts: 1,588	also do the heater hose mod, re-route the heater hoses off the top intake! __________________ 415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller

07-21-2010, 11:32 PM	#11
Josh @ Spartan LSX Drives: A wrench Join Date: Jan 2010 Location: East Atlanta Posts: 353	Those 2 covers are completely useless and YES, they do rob power due to heat soak. Take them off. I removed them on all L92/LS3 powered cars.

07-22-2010, 12:33 AM	#12
JS Drives: 2010 Camaro SS Join Date: May 2010 Location: Phila,Pa. Posts: 557	I said this 4 months ago when we tested on the dyno ITS CALLED COMMEN SENSE __________________ SOLD 2010 Camaro 1SS/A6 12.59@111.31 Magnaflow Magnapack Axleback & Resonated X-Pipe/OBX LT Headers/Airaid Cold Air Kit/Injection Connection Tuned

07-22-2010, 06:23 AM	#13
SGOS252382 Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008 Location: S.W. Florida Posts: 6,294	Hey, those are my intake covers laying on my driveway. I took them both off a while back (and took a pic) at the advice of my tuner. The intake cover (small cover) has insulating foam that definately acts like a blanket. The day we took the engine cover off my car (hot engine after driving 100 miles in 90 degree heat) a big rush of hot air came out from under it. But as far as increasing HP (I dought it). But I do believe the engine will cool down faster with the covers off (especially at the track with the hood open).

01-29-2014, 10:42 PM	#14
gisbert.j.hanft Drives: 2SS Transformer Eddition 2012 Join Date: Jun 2013 Location: Corning Posts: 76	How do you remove iNtake cover there's so many bolts and screws and wires going everywhere

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