Hood vents
 

So im planning on cutting some vents, and km planning on creating some kind of "exhaust" that goes from behind the intercooler directly to the vents preventing water to get in the actual engine.. if this is a good idea at all, what type of material should I use to do such thing that resist heat and its able to be worked with..

Al-you-min-ee-um

Ducting is a fine idea. The trick is packaging it in the available space.

So you're going to add good vents that won't vent the radiant heat, because you're routing the airflow from the radiator stack through a vent?

Must see a diagram! I'm sure I'm getting the wrong idea, but vents work by relieving pressure from incoming air thought the front fascia. With that, it also takes the radiant heat from the headers/engine/whatever else. The radiator and intercooler will benefit, but they aren't the ones responsible for the heat people add vents to get rid of.

Like I said, show us your design idea so we can help and understand the plan better :)

Im busy working at the moment, all these ideas come to mind as I work btw reason why im asking so there's no definite idea just yet but yea my first idea was gonna grab the air after it went through the intercooler.

I think you're going to quickly find that the front ends needs to be 6-12" longer for that idea to work

Huh?

I think he means that to funnel air through and make it purposeful, you need to also ensure there is ducting between the front bumper and the stack so that excess air isn't being lost to surrounding space meaninglessly

Pulling hot air from the engine bay, from my experience, the best spot for venting is along the hood behind the radiator.

This gives a nice low pressure zone for the air that has just passed through the radiator to excape, thus maximizing the efficiency of the radiator.

As for the hot parts radiating heat, coatings and wraps, the hot air, is typically pulled from underneath behind the engine bay and pulled out under the car.

For electronics and other bits that the radiant heat will effect, distance and sheilding.

In the end it comes down to building with sound engineering principles, if for some reason you need something that gets really hot near something you don't want hot, you need sheilding.

Bonnet vents work well with radiator efficiency if positioned in a low pressure zone.

Bonnet vents do nothing to help with radiant heat melting parts when you are on the loud pedal.

If you want to get your nerd on get some thermocouples, a good meter and do some testing.

This old website taught me what to do to in relation looking for what is hot, what is not.

> http://origin.autospeed.com/cms/titl...6/article.html
https://www.autospeed.com/cms/a_113177/article.html
http://origin.autospeed.com/cms/titl...8/article.html

The car I had with the most heat issues was my old RB25/30 Nissan Skyline, but with some coatings, wraps, and reflective tape and a vented hood, I could lean on the car all day at the track, and then drive it home in peak hour traffic

You sound like this style would suit, but:

Space?
Radiator?
Legalities?

That is exactly what I was aiming for, not heat reduction per say but making the radiator intercooler much more efficient and my principal design was meant to be right behind it.