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View Full Version : Why people take off their engine covers?



blacka41point8t
01-17-2006, 01:45 PM
Lately i've been seeing alot of pics and in all of them the persons engine cover is off...any reason for this? does it make a difference on or off? I wouldn't think it would but just curious.

shreddervai
01-17-2006, 01:45 PM
i dont think they fit on with bigger injectors

diegomatrix
01-17-2006, 01:48 PM
the cover's there just for noise reduction.....

some ppl take it off for better cooling....but i say 'wateva'...

i leave mine off coz i find it a hassle taking it off each time i work on my car..

goldenchild
01-17-2006, 01:50 PM
it will cool ur engine better w/o it on bc that cover is insulatin the heat

onemoremile
01-17-2006, 01:51 PM
go drive until the coolant gauge is centered and the car is fully warmed up. now remove that cover and hold it in your bare hands. hot, isn't it?

i see no reason to subject the head and coil packs to any sort of heat retention that isn't absolutely necessary. arguably, the most critical issue facing a turbo car is heat management.

shreddervai
01-17-2006, 01:56 PM
so why is it there in the first place, there are obviously no advantages to having it on

diegomatrix
01-17-2006, 01:57 PM
Originally posted by diegomatrix
the cover's there just for noise reduction.....

goldenchild
01-17-2006, 01:58 PM
it has to maintain an appealing look under the engine bay. its to hide all the ugly engine is y. no other purbose than that.

R-Dub
01-17-2006, 01:59 PM
It looks nice. Well, nicer than the bare engine. From a dealerships POV its easier to sell a nice packaged engine rather than a bare one.

Neo1130
01-17-2006, 02:15 PM
Is there any PROOF as to this reducing the heat of the engine? Anyone have a laser thermometer?

onemoremile
01-17-2006, 02:16 PM
the older guys i hang out with have a real hang up regarding all the engine covers and undertrays. their consensus is that you should be able to pop the hood and see the ground. you should also be able to see the engine, preferably with a carb.

onemoremile
01-17-2006, 02:21 PM
Originally posted by Neo1130
Is there any PROOF as to this reducing the heat of the engine? Anyone have a laser thermometer?

i've got one - they are actually called pyrometers - but the results would always be open to speculation.

my cover is usually only off for track days. if there is a problem and i need access to the coils or valve cover i don't need another flaming hot component in the way.

eisman
01-17-2006, 02:21 PM
I burnt a big ugly hole in mine with my drop light. So it dosen't look good anymore. Removed until I get a CF cover and and the Carbonio intake in.

Hassmeister
01-17-2006, 02:25 PM
personal perference.

trailboss
01-17-2006, 02:30 PM
I also removed the weather stripping on the first firewall so the air can flow out of the engine more easily, and cut out the rectangle in front of the intake mani. I would post pics but i dunno how.

k0mpresd
01-17-2006, 02:37 PM
whats an engine cover? [:D]

audispeed
01-17-2006, 02:39 PM
because i am too lazy to put i back on

AFOUR_PLAY
01-17-2006, 02:41 PM
I took mine off to help keep the coils cooler and it a little squashy with larger injectors.

bitterchild
01-17-2006, 02:43 PM
my cover won't clean my inline fuel gauge. Simple as that.

Gundem
01-17-2006, 03:10 PM
they take it off for weight deduction.


:)

01'A41.8T
01-17-2006, 03:18 PM
Took it off to paint. Now that its started I am to lazy to finish.

onemoremile
01-17-2006, 03:26 PM
Originally posted by trailboss
I also removed the weather stripping on the first firewall so the air can flow out of the engine more easily, and cut out the rectangle in front of the intake mani. I would post pics but i dunno how.

that weather stripping is there so that the HVAC intake won't pull engine fumes into the cabin. felling a little light headed sometimes??? bet that's fun in a traffic jam.

Neo1130
01-17-2006, 03:28 PM
If you don't have an exhaust leak, there shouldn't be too many fumes...

IKE20VA4
01-17-2006, 03:32 PM
hehe you would hope not...

trailboss
01-17-2006, 03:35 PM
Originally posted by onemoremile
that weather stripping is there so that the HVAC intake won't pull engine fumes into the cabin. felling a little light headed sometimes??? bet that's fun in a traffic jam.
Considering that i only drive the car tops 10 miles a day once i get off of work and I live in a small town i dont think its is a problem. Haven't had any problems yet, and besides going 50mph you would think the air would move underneath the hood and out the back of the hood. I also never use my A/C or heat, I live in FL.

trailboss
01-17-2006, 03:48 PM
A guy on AF posted this up. audiforums (http://www.audiforums.com/m_7998/mpage_1/key_engine/tm.htm#8451)

geeboyjibber
01-17-2006, 05:39 PM
because when you open the hood itll actually look like you have an engine instead of just a bunch of plastic.

b00st
01-17-2006, 05:50 PM
its for the hardcore.

i'm taking mine in for paint...color match to exterior, when i take my rs4 body kit in. and i'll have a couple other things painted in there as well.

buck
01-18-2006, 05:59 AM
Originally posted by eisman
I burnt a big ugly hole in mine with my drop light. So it dosen't look good anymore. Removed until I get a CF cover and and the Carbonio intake in.

nice!

http://www.audizine.com/gallery/data/500/551100_2372sm.JPG