Hood Louvers...Good idea???
Super Moderator
Joined: Aug 2008
Posts: 1,174
Likes: 106
From: Middle of Caribbean
Those hood vents wont remove enough hot air to say so, not unless you had a fan to force the air out.
A Saudi Grille would allow more air into the engine bay, thats what they use in the Middle East where it gets 130*F in the shade.
As long as you take care of your cooling system you wont have problems.
There is a big misconception about our trucks, they do NOT run hotter than any other engine out there, they dissipate more heat because of the all aluminum engine block and heads.
As we all know aluminum dissipates heat better than cast iron, so these trucks just "feel" like they run hotter.
Off roading for 3 hours in 95*F heat with the a/c on in deep sand and climbing steep hills my engine temp never got over 215*F, 5 degrees more then when sitting in city traffic with the a/c on on a 95*F day.
That was using my OBDII scanner that reads live engine data.
Cruising down the road a DI runs at 196*F, city traffic 200-210*F.
My wifes Volvo...exactly the same.
My 2003 E-250 work van, even after 8 hours of continuous running, exactly the same.
(just like any kid I played with my scanner after I got it)
A Saudi Grille would allow more air into the engine bay, thats what they use in the Middle East where it gets 130*F in the shade.
As long as you take care of your cooling system you wont have problems.
There is a big misconception about our trucks, they do NOT run hotter than any other engine out there, they dissipate more heat because of the all aluminum engine block and heads.
As we all know aluminum dissipates heat better than cast iron, so these trucks just "feel" like they run hotter.
Off roading for 3 hours in 95*F heat with the a/c on in deep sand and climbing steep hills my engine temp never got over 215*F, 5 degrees more then when sitting in city traffic with the a/c on on a 95*F day.
That was using my OBDII scanner that reads live engine data.
Cruising down the road a DI runs at 196*F, city traffic 200-210*F.
My wifes Volvo...exactly the same.
My 2003 E-250 work van, even after 8 hours of continuous running, exactly the same.
(just like any kid I played with my scanner after I got it)
thanks for the info phil. my D2 runs at 188-193 city driving and 200-205 MAX off roading for 5 hours in 90 F without A/C. I didnt have the aux fan pulling in more air like you did! The DI's I work on and the two D2's i work on run closer to your range! strange...
Last edited by jycsalas; Aug 14, 2009 at 04:10 PM.
Super Moderator
Joined: Aug 2008
Posts: 1,174
Likes: 106
From: Middle of Caribbean
But spike, since our engine dissipates heat better than other engines, wouldn't that still make the engine bay hotter? even though the engine temp is normal compared to a cast iron V8? and that extra heat is why we recommend magnecore wires vs anything else?
So our engines dont run hotter than others, they just get our engine bays hotter than others and cook our spark plug wires
So our engines dont run hotter than others, they just get our engine bays hotter than others and cook our spark plug wires
I have not measured the temps in the engine bay on a car, I dont think my wife would like me using her digital meat thermometer to do this.
What you say makes sense and I think it is so, and with the hood also being aluminum it will get hotter than a steel hood which I think helps pull heat out of the engine bay.
The hood also dissipates heat I suppose.
I know that after 8 hours of off roading 2 Aug ago with the a/c on my hood was so hot you could not rest your hand on it but the engine temp never moved.
So I do not have a definitive answer for you on that one.
But I am of the opinion to leave well enough alone.
What you say makes sense and I think it is so, and with the hood also being aluminum it will get hotter than a steel hood which I think helps pull heat out of the engine bay.
The hood also dissipates heat I suppose.
I know that after 8 hours of off roading 2 Aug ago with the a/c on my hood was so hot you could not rest your hand on it but the engine temp never moved.
So I do not have a definitive answer for you on that one.
But I am of the opinion to leave well enough alone.
Mudding
Joined: Sep 2008
Posts: 180
Likes: 1
From: Jackson MS
Guys, I hate to burst bubbles here, but the side "vent" on the Range Rover is actually the air intake, not a vent. It supposedly gives the vehicle a 28 inch fording depth. Check the Land Rover Driving School video on YouTube where they are running the 2006 RR and RR Sport.
TReK
Joined: Nov 2008
Posts: 2,081
Likes: 4
From: Kirkland,WA
Guys, I hate to burst bubbles here, but the side "vent" on the Range Rover is actually the air intake, not a vent. It supposedly gives the vehicle a 28 inch fording depth. Check the Land Rover Driving School video on YouTube where they are running the 2006 RR and RR Sport.
for no good reason other then you are right
Ha!
