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Old Jul 9, 2006 | 03:33 AM
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engine cover

Hi guys,

I see a lot of cars here have their engine covers removed.Does this offer better cooling or do poeple just do this to get room for straut bars, etc?
Does the cover sever any purpose beside cosmetics?
 
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Old Jul 9, 2006 | 08:37 AM
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Yes, for additional cooling. In some cases it mya be for strut bars or needed clearance for plenum spacer etc.
 
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Old Jul 9, 2006 | 11:27 AM
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As tested with my datalogger, i've noticed no difference in intake or coolant temps, with or without the cover.
 
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Old Jul 9, 2006 | 11:29 AM
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Originally Posted by DaveB
As tested with my datalogger, i've noticed no difference in intake or coolant temps, with or without the cover.
well theres some stonecold proof for ya. It's aesthetic.
 
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Old Jul 9, 2006 | 05:24 PM
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And with my datalogger there's also no difference in exhaust, battery or trunk interior temperatures with the engine cover removed.
 
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Old Jul 9, 2006 | 05:32 PM
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I'll sell ya mine.............

I'm only messing with ya......most of the time the
cover won't fit if you have a spacer like mine (1/2")
soooo.......I had a custom engine cover made that I
had to cut to fit and then painted it. Dave O says
that it's better to remove it......he know his ****!
As you can see everyone has their opinion....ya know
how that goes......
 
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Old Jul 9, 2006 | 08:13 PM
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weight reduction....





a massive 2 lbs
 
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Old Jul 9, 2006 | 09:08 PM
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Originally Posted by Earl
And with my datalogger there's also no difference in exhaust, battery or trunk interior temperatures with the engine cover removed.
Good for you, Earl. Why don't you actually add something useful to this site other than being an *** to me? If you have a problem with my findings, then why not do some testing yourself?
 
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Old Jul 9, 2006 | 11:34 PM
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Originally Posted by DaveB
Good for you, Earl. Why don't you actually add something useful to this site other than being an *** to me? If you have a problem with my findings, then why not do some testing yourself?
I have. That's why I find the majority of what you post misleading at best and pure BS much of the time.

Datalogging the IAT (Intake Air Temperature) Sensor signal measured inside the mass air flow sensor housing and the ECT (Engine Coolant Temperature) Sensor measured at the left rear coolant return manifold, and inferring that these temp readings are representive of the heat that's trapped beteen the plenum and full engine cover is simply absurd.

 
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Old Jul 10, 2006 | 08:53 AM
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Originally Posted by Earl
I have. That's why I find the majority of what you post misleading at best and pure BS much of the time.

Datalogging the IAT (Intake Air Temperature) Sensor signal measured inside the mass air flow sensor housing and the ECT (Engine Coolant Temperature) Sensor measured at the left rear coolant return manifold, and inferring that these temp readings are representive of the heat that's trapped beteen the plenum and full engine cover is simply absurd.

Hey Earl you tool bag you can't even afford to become a premier member so no one wants to hear your thoughts on anything. You have posted only 50 times so it's understandable that you don't know who DaveB is or who DaveO is but he contributes a lot of good info to this website. Sooooo stop being such a douche.
 
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Old Jul 10, 2006 | 12:53 PM
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Originally Posted by gary c
I'm only messing with ya......most of the time the
cover won't fit if you have a spacer like mine (1/2")
soooo.......I had a custom engine cover made that I
had to cut to fit and then painted it. Dave O says
that it's better to remove it......he know his ****!
As you can see everyone has their opinion....ya know
how that goes......
Dave O does know his stuff and there is a difference in intake temps on the intake manifold with the engine cover removed. It's obvious if you remove something that blocks air it will be cooler.

Anyone who says it doesn't make a difference is a retard.
 
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Old Jul 10, 2006 | 12:55 PM
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Originally Posted by 2FastG354U
Hey Earl you tool bag you can't even afford to become a premier member so no one wants to hear your thoughts on anything. You have posted only 50 times so it's understandable that you don't know who DaveB is or who DaveO is but he contributes a lot of good info to this website. Sooooo stop being such a douche.

Earl has given good info and so far everything he has posted hasn't been incorrect. DaveB on the other hand has posted a lot of wrong information and also likes to argue the facts against people who have given a lot of time and money testing stuff like this. Dave O knows his stuff and I trust his opinion over anyones.
 
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Old Jul 10, 2006 | 02:21 PM
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Originally Posted by Earl
I have. That's why I find the majority of what you post misleading at best and pure BS much of the time.

Datalogging the IAT (Intake Air Temperature) Sensor signal measured inside the mass air flow sensor housing and the ECT (Engine Coolant Temperature) Sensor measured at the left rear coolant return manifold, and inferring that these temp readings are representive of the heat that's trapped beteen the plenum and full engine cover is simply absurd.

Just how much do you think air can heat up when it's moving at high rate of speed through an intake tract that is only about 2', with only about 1/3 of which is actually going to be heat soaked metal. Let that sink in for a second. If the air was stagnet in the manifold, then yes it would get heated. If the air was being compressed, then yes it would heat up. Otherwise, no. Here's another test you can do. Drive in the city for 30 minutes on an 80 degree day with the cover off and then hit it with a pyrometer. It will be around 140-150 degrees. Then do the same test with the cover. Pop the hood and quickly remove the cover. Bam! It's 140-150degrees

At least with my car, it could give a rat's *** whether the motor is scalding hot or ice cold. It runs the exact same in the 1/4 mile. Same ET, same MPH, same 60'.
 
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Old Jul 14, 2006 | 11:44 PM
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Originally Posted by DaveB
Drive in the city for 30 minutes on an 80 degree day with the cover off and then hit it with a pyrometer. It will be around 140-150 degrees. Then do the same test with the cover. Pop the hood and quickly remove the cover. Bam! It's 140-150degrees
Not true - I've done it, extensively and for multiple days in many different driving conditions. There are posts out here with data.

BTW (a little off topic) - In addition, the MD iso-therm kit shows significant lower temps (this is why I did the tests stated above).
 

Last edited by OCG35; Jul 14, 2006 at 11:51 PM.
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Old Jul 15, 2006 | 09:53 AM
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Hey 2FastG354U,

Check it out.

...you can't even afford to become a premier member...
Have you been reading my bank statements?

...so no one wants to hear your thoughts on anything
You, and the rest of the forum members that you so freely speak for, are welcome to skip my posts if I say something that doesn't fit into your preceptions.

You have posted only 50 times...
You're right, my posts have been limited. I'm a long time lurker and long time modder.

...it's understandable that you don't know who DaveB is or who DaveO is...
Unlike some people, I used the search engine and over time got to speed on both DaveB's and DaveO's contributions to this site. I've found one has a special G35 with a special engine and transmission that doesn't work like the others, knows everything about the G35 (even more than Infiniti) and continually states a mod doesn't work when he's never tested it.

...but he contributes a lot of good info to this website.
So which one posts lots of good info to this website?

Sooooo stop being such a douche.
You're certainly welcome to continue to blindly follow your hero's posts, but I for one won't and if that's being a douche then so be it.
 
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