Underhood heat
#1
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Underhood heat
Have any of you thought of ways to vent some of the heat outa there? Like louvered hoods, washers under the hood mounts, etc? Any attempts?
#2
Tennis, anyone
Yes i have,,i have a clean stock hood on right now,on
the other hood i cut and glass'ed on a NACA duct right
over the aircleaner,i have also made a NACA duct on
the left(passanger side)head light lid,,both function.
i also have done the junkyard thing for bolt on vents,
so far i've found that the 280z's have vents on the hoods that un bolt, even the turbo models. on a 1st gen.
the hood swings the other way, so washers i don't think
would help,an n/a engine doesn't even generate the underhood heat that a turbo engine generates,,but the
rotory engines produce some underhood heat, or is that
in the design of the car,,i wonder..
the other hood i cut and glass'ed on a NACA duct right
over the aircleaner,i have also made a NACA duct on
the left(passanger side)head light lid,,both function.
i also have done the junkyard thing for bolt on vents,
so far i've found that the 280z's have vents on the hoods that un bolt, even the turbo models. on a 1st gen.
the hood swings the other way, so washers i don't think
would help,an n/a engine doesn't even generate the underhood heat that a turbo engine generates,,but the
rotory engines produce some underhood heat, or is that
in the design of the car,,i wonder..
#3
Nikki-Modder Rex-Rodder
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I've been driving around with a little Radio Shack indoor/outdoor thermometer. It's got a big LCD display, and a sensor at the end of 8 ft. of wire. I just have it laying on my seat, and have been measuring the temp at different spots in the engine, including inside the carb airhorn.
It's suprisingly low.
I will try to chart some #s at some point just for future reference, but unless you're super modded, I don't think you need to worry about a vent so much - -That is, concerning under-the-hood temps. However, if you're looking for increased airflow thru the radiator, that is a different story.
(I run a yaw carb w/ headers, and estimate between 150 and 160 HP. I shift frequently at 7K RPMs, and drive like a lunatic. I still have the stock crappy water cooled oil cooler, and I never go past the halfway mark on my gauge.)
It's suprisingly low.
I will try to chart some #s at some point just for future reference, but unless you're super modded, I don't think you need to worry about a vent so much - -That is, concerning under-the-hood temps. However, if you're looking for increased airflow thru the radiator, that is a different story.
(I run a yaw carb w/ headers, and estimate between 150 and 160 HP. I shift frequently at 7K RPMs, and drive like a lunatic. I still have the stock crappy water cooled oil cooler, and I never go past the halfway mark on my gauge.)
#4
male stripper
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http://www2.apex.net/users/patryn/79rx7.htm
mine is down towards the bottom. basically a simple heat release vent located right in front of the alternator to let the hot air through the radiator out. did it in about 10-15 min with an air powered cutting wheel. as you can tell, spare hood.
mine is down towards the bottom. basically a simple heat release vent located right in front of the alternator to let the hot air through the radiator out. did it in about 10-15 min with an air powered cutting wheel. as you can tell, spare hood.
#5
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Originally posted by jeremy
http://www2.apex.net/users/patryn/79rx7.htm
mine is down towards the bottom. basically a simple heat release vent located right in front of the alternator to let the hot air through the radiator out. did it in about 10-15 min with an air powered cutting wheel. as you can tell, spare hood.
http://www2.apex.net/users/patryn/79rx7.htm
mine is down towards the bottom. basically a simple heat release vent located right in front of the alternator to let the hot air through the radiator out. did it in about 10-15 min with an air powered cutting wheel. as you can tell, spare hood.
That looks pretty good, and being up front I guess you don't have to worry about getting any electrics wet.
#7
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if you want to put a hole in your hood, make sure you do it in a LOW pressure area, not a high pressure area. Look at the flow chart for the FC to get an idea. Around where the hood and windshield come together is a HIGH pressure area. Don't put a heat exhaust port there. Put it somewhere else.
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#10
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I agree with Sterling, underhood temperture is not that high. Even driving for hours in 100+ heat has never seen my gauge go past half way. If the temperature started to climb it would reflect a problem with the engine rather than the lack of air flow. Adding a scoop just makes the car look faster, in most cases it has the same impact as adding a turbo badge.
#16
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Obviouslu there is a lot of heat while the car is sitting still. Why not put your head under the hood when its doing 60mph. That would be a real cool.
#17
male stripper
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depends on who's driving, lol. i look at it like this, my stock temp guage is sticky and not accurate and i autox. i did it to also give the higher pressure under the hood a release. the hood was free to me and an extra. also pulling heat from the bay will allow components to last longer and improve performance a bit as the carb will stay cooler thus the air coming in stays cooler. all in all its not a bad thing all though its not a necessity. you guys sure are **** about this. i like the looks of it too.
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