Hood Louvers

[RI Chevy Silveradoman]

I am curious to see if anyone has ever tried using hood louvers to help cool under the hood?
It sounds like a good idea, if they really work. They would probably look pretty cool as well.
Here is a brand that I was looking at. Run Cool Hood Louvers.

HoodLouvers.com

 

[Will L.]

Idk on the truck body, but I've had friends use them on other rides - some bodies it helps, others not. Do a run, watch the temps then pull the hood off and compare. If you don't see a big difference with no hood, it can't help with a few breather holes.

Also check pricing on having a hot rod body shop do the real ones in your hood- you have to chop it up anyways to install the panels.

 

[JayTheCPA]

Check with Paveltolz for long term effects.

 

[SnowDrift]

Is there not a pressure differential that the closed hood allows so that heat is rejected properly?

 

[btfarm]

Check with Paveltolz for long term effects.

If you look at the scrolling pictures on that site his truck is featured

 

[JayTheCPA]

That is definitely his truck. There was some commentary about long terms effects of installing the louvers in the re-build thread (http://www.thetruckstop.us/forum/th...was-this-a-good-idea.43361/page-2#post-490247)

Looks like the plan is to re-install them 'just-cause', but the resto is not done yet.

 

[RI Chevy Silveradoman]

Wow. Cool. Hopefully he will see this thread and chime in.

 

[FellowTraveler]

I did vents just past the radiator shroud to vent hot air and determined about a foot of that area after shroud is good for vent at all speeds except as noted the results were drivers side vented w/o problems at all speeds the passenger side pulled air in at all speeds the pulling in of air depends on rotation of cooling fan. Farther back @ center of hood the air vents at low speed and is pulled into the engine bay/bonnet at speed however this are is great for venting at lower speeds. The trailing edge of the hood/bonnet always pulls air in which is good for a sealed cowl intake to the 6.5td. I also have the area around the passenger side of the 6.5 busy w/IC/CAC pipes too which disrupts airflow on passenger side. All GMT400's have upper inner fender vents that vent at the area between the trailing edge of the fender and leading edge of the front door works somewhat but fender vents enhances the flow there and the turbo side will always flow out hotter air from under the hood/bonnet.