i remember reading a thread on here where a guy said a hood tilt would only work well for somone who had maybe a k series w/ itbs because of the way the air vented thru the hood.

i have a turbod d16 and it get really hot under the hood, i feel like even if i cracked the hook up in the back that it would definately cool it down somewhat. has anyone had experience w/ this?

 

hood prop is what it's called. it might help you out, iunno. I've never seen dyno proof of with and without the prop.

 

yea .. i'm not even talking so much about dyno numbers, i'm just looking to cool it down in the bay

 

I was reading somewhere where one guy actually compaired different venting options and had actual numbers to prove the different options. Like propping the front of the hood up vs. the rear and different types of vented hoods. From what I can remember it said that propping the rear of the hood didn't help, actually made it worse. It said the best venting option for getting heat out was a vent right above the turbo/exhaust manifold. It around the internet somewhere, I'll let you know if I find it again

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SDHonda153 &raquo;</TD></TR><TR><TD CLASS="quote">I was reading somewhere where one guy actually compaired different venting options and had actual numbers to prove the different options. Like propping the front of the hood up vs. the rear and different types of vented hoods. From what I can remember it said that propping the rear of the hood didn't help, actually made it worse. It said the best venting option for getting heat out was a vent right above the turbo/exhaust manifold. It around the internet somewhere, I'll let you know if I find it again </TD></TR></TABLE>

yea i know what ur talkin bout .. i just dont see how liftin up the back of the hood would make it worse

 

Lifting the back does decrease under the hood temperature. So I've read. I remember there was a hood prop diy thread somewhere where he showed you how to do it and explained what it was for and did some test to see what difference it makes to prop your hood. I'll loook into it real fast.

edit.

Review:
The hood prop did not seem to help under-hood temperatures (drastically). The coolant temperature did not change much, it was tiny bit lower (maybe a hair). My air vents did blow slightly colder with the hood propped, but this is where the good stops.

With the hood propped, I noticed a slight hesitation at low RPMs and a flat spot in the mid range that was not there previously. I also think it looks retarded, but that's neither here nor there. I also got some weird wind noise with the hood propped.

Final Notes:
Regardless of the outcome, this project was well worth my time, effort, and some pocket change. It allowed me too experience something first hand that most people either praise or bash without any hands-on info. Once again, these results are based on the experience of one person with one intake setup with their own opinion. Your results may be different. In the end, it comes down to personal preference.

There, the engine temperature shouldn't go down after you prop your hood, your thermostat controls that. But the hot air around the engine under the hood should flow out alot easier, since when your driving air goes in the bumper, then now can either flow through the engine bay releasing the hot air through the prop(at a higher flow rate than without the prop), or just under the car.

 

If you do this... remove the weather stripping at the top portion of the hood. This will be the only way to actually get an airflow out of it. Its done typically to clear motor swaps from hitting the hood. As mine did on my VIS. I was double sided cf and i sent my motor through on a hard launch cracking it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hanmin &raquo;</TD></TR><TR><TD CLASS="quote">edit.

Review:
The hood prop did not seem to help under-hood temperatures (drastically). The coolant temperature did not change much, it was tiny bit lower (maybe a hair). My air vents did blow slightly colder with the hood propped, but this is where the good stops.

With the hood propped, I noticed a slight hesitation at low RPMs and a flat spot in the mid range that was not there previously. I also think it looks retarded, but that's neither here nor there. I also got some weird wind noise with the hood propped.

Final Notes:
Regardless of the outcome, this project was well worth my time, effort, and some pocket change. It allowed me too experience something first hand that most people either praise or bash without any hands-on info. Once again, these results are based on the experience of one person with one intake setup with their own opinion. Your results may be different. In the end, it comes down to personal preference.

There, the engine temperature shouldn't go down after you prop your hood, your thermostat controls that. But the hot air around the engine under the hood should flow out alot easier, since when your driving air goes in the bumper, then now can either flow through the engine bay releasing the hot air through the prop(at a higher flow rate than without the prop), or just under the car.</TD></TR></TABLE>
Which is from:
https://honda-tech.com/zerothread?id=2107241

Much easier to just link, plus it gives credit where due.

 

thx for the link .. i think i might do it, gettin my air vents to blow colder would be awesome, and if my turbo is taking in cooler air i'm happy