vented hoods on a daily driver

[WILDACEX187]

is this a good idea? i mean wat if it rains or something, wont the maf and other stuff under the hood get fukked up?

[TipStylez]

If the vent is not right over your intake it should be ok. Just wash your engine bay once in a while after it rains.

[ThatGuy]

I have a chargespeed vented hood. Vent is right over the front of the engine, just behind the rad and fan. Water can get in to the belts and dizzy, but has never caused me a problem. :bow:

[WILDACEX187]

hmm since it that close to the radiator maybe a little ducting to pour the water over the radiator can be made

[MOUNTAINGARAGE]

use permatex contact grease on ALL your electrical connections, regardless of the holes in your hood. I wash my engine bay about every other time I wash the exterior. NEVER had a problem with water. Same deal on all makes cars I have ever had. This is the same grease that is required by factory service manuals to be used on the spark plug boots to prevent corrosion and misfire.

Cool? Does that answer your question? :wavey:

[WILDACEX187]

kinda thanx alot

[Dousan_PG]

uras vented hood
no probmels on the daily drive
only shitty made poor location (cheap) vented hoods will give u issues.

[WILDACEX187]

the only worry i have is the water getting on the air filter or messing with the coilpacks or something

[Dousan_PG]

sigh
what did everyone just tell you?

[mothon]

I have an m-sports hood on my s13 and the only thing i have noticed is my belts seem to wear quicker.

[Edgar]

uras vented hood
no probmels on the daily drive
only shitty made poor location (cheap) vented hoods will give u issues.

Who sells URAS here in the states?

[Dousan_PG]

jspec.com

its the insert
uras never made a vented hood iiirc
i forget

i neve buy stuff here
i jsut got it thru japan directly.

[WILDACEX187]

sigh
what did everyone just tell you?

its not wat people have told me, its just that i dont want my electronic stuff on my motor fukkin up since i need this car to get to work and all that sht.

[TipStylez]

^Then dont get a vented hood. Do the hood spacer mod, and get a bigger electric fan.

[articdragon192]

You do know that the hood spacer mod actually sucks air in while the car is in motion right?

[redsuns3838]

artic dragon, where did you hear that? im not saying your wrong, just curious as to where u got ur info.

wildacex, just get a stock hood if ur so worried about fucking up electical stuff. everyones telling u if u get a good hood its fine, and ur still worried, just get OEM then..

[ThatGuy]

<--Vented Hood + Daily Driver + North Carolina Weather (a.k.a. Rain damn near EVERY DAY!) = No problems for me. In other words you'll be fine.

p.s. I don't remember where I ordered my Chargespeed hood from. I think it was Bulletproof Automotive, but I don't see it listed on their site anymore. :loco:

[TipStylez]

You do know that the hood spacer mod actually sucks air in while the car is in motion right?

Please chime in with more info, i never heard of this before and cant figure out how it could suck air in.

[sw20>>s14]

cool...i have a hood similar to thatguy's and was worried because like his, the vent is right above the rad/clutch fan...i was just worried about the belts and most importantly, the alternator...i noticed a member stated that he noticed his belts deteriorated faster than normal...would belt dressing help prevent this?

actually, running mine daily may not be a good idea...i just remembered that mine has no latch and has two vents above the strut towers...anti seize on upper mounts maybe?

[ranger240]

isnt the area around the base of the windshield/back edge of a hood a low pressure area or something ... the hood lift suction phenomina would make sense as they would fuction similar to cowl-induction hoods i assume...

air moving faster under the car then air above it .. causes the air above to get sucked down..kinda like water getting sucked out the plug of a moving sailboat...

is that the right idea?

[ThatGuy]

If the hood spacers actually "suck air" then they should function on the same principles as a Cowl Induction hood of muscle car fame. It creates a pressure difference at the base of the windshield which allows the air to be sucked in more quickly than the standard flow path. I'm sure someone can find the actual principle and such. I'm just spewing info I recieved as a kid, looking at a Camaro SS, and saying, "Dad, why is the hood higher in the middle like that?" :D

edit: Hahahaha, what he said! ^

[sw20>>s14]

ill take a stab in the dark since i havent studied aerodynamics or physics in depth, but...seems like since more air travels over the hood than through the hood...the side with higher pressure will go in...bascially pressure difference, like a planes wing; forgot the dudes name who they named it after...borelli? (if you cant tell by now, yes, i am going into business/marketing and NOT science...haha)...drag follows the lines of anything that cuts trhough it...so it probably goes up your hood and hits a low pressure spot and goes in...

if im wrong, it was worth a try and its good to know that im not going into that field... =)

edit: haha, wut he said, he said...haha

[theicecreamdan]

well, when I had my thirdgen camaro, I had a cowl induction hood. on rainy days you could watch drops of water go across the hood, and then get sucked in at the back.

I imagine when air hits the windshield it creates a high pressure area. under the hood is not so high, so air goes that way.

[wootwoot]

Why would that be bad if the spacer mod made more air go through ?....Isnt that the point?

[McRussellPants]

Theres a high pressure area at the base of the windsheild from air staganation. air escapses into a low pressure area which is most likely your engine bay followed by going under the car.

hood risers don't cool jack. they're 100% rice, they make it look like FG fenders/hoods fit right and let you hear more engine noise.

If you want a damn vented hood then buy one. your car won't explode unless your wiring is hackass or its dumping water into your spark plug wells. Engine bay isnt sealed, water gets in all the time, your car isnt gonna explode if its coming from a different direction.

edit: I award ranger zero points and may god have mercy on his soul.

[HKsilvia]

imagine stock vent hood cars like evo or imprezza, do they have any problem?
engine bay is designed that way, just dont flush water into ur fuse box u are fine.

[TipStylez]

^The imprezas are fake, all the vents are blocked off.

But since im a imrpeza head, most of the people i know take out the blockers, and water gets in and every thing is fine.

So you shouldnt worry about raindrops and what not, you have a higher chance of shit in your engine bay rusting living by the sea on a hot day.

BUT, if your realy worryed about water...dont get a vented hood.

[WILDACEX187]

ordered a oem style seibon hood. thanx for the info guys. i might just do a slight "cowl hood" mod with the spacers, but just a lil bit. great info :bow:

[!Zar!]

ordered a oem style seibon hood. thanx for the info guys. i might just do a slight "cowl hood" mod with the spacers, but just a lil bit. great info :bow:


hood risers don't cool jack. they're 100% rice, they make it look like FG fenders/hoods fit right and let you hear more engine noise.

Did you miss everthing that was said?

[articdragon192]

You guys pretty much nailed it with the differences in pressure causing air to go in. ITB Hondas do it to get fresh air to thier ITB since the intake is towards the rear. The only time I can see it venting is when the car is at a stop, lol.

[TipStylez]

^thats good too.

[S13Eye]

Since this topic is pretty much covered, can someone please explain how to properly wash an engine bay? This is a topic that has always bugged me because i have been afraid of getting water into places where it doesn't belong, like relay boxes or flooding an alternator. For this reason i have only cleaned engine bays after the engine and wiring has been removed, so i usually end up working in a scummy dusty engine bay with greasy finger prints all over.

Exterior maintenence is a skill thats developed over time. I would assume the engine bay has its own methods and products.

[TipStylez]

I just cover the intake with a bag, the coil pack and disconect the batt.

Then HOSE that bitch down with a lil scrubbing here and there.

Nothing wrong ever since..

[WILDACEX187]

Did you miss everthing that was said?

no, but everybody here is pointing out that air will pass into the engine and continue down towards the floor taking some heat with it, so why not

[articdragon192]

no, but everybody here is pointing out that air will pass into the engine and continue down towards the floor taking some heat with it, so why not

It'll prob just trap the heat in instead of letting it vent out. Remember hot air rises.

^thats good too.
If' you're at a stop 75% of the time, maybe, lol.

[R33GTS-T]

You do know that the hood spacer mod actually sucks air in while the car is in motion right?
the spacers will also create lift on the front end....you can see it when on the highway the hood starts to flex

[TheSquidd]

I <3 my hood spacers :D

[sideview_180sx]

i hope you all realize that depending on which method you use to raise you hoods, if you get in a front end collision. the hood won't buckle, just go back towards the drivers compartment. FA already had this discussion almost 3 years ago. search on there.

[TheSquidd]

Extra Burnout:Revenge crash bonus points!~:bite:

[A Spec Products]

I <3 my hood spacers :D

spacing your hood does nothing

except add to fan boy points

[TheSquidd]

Of which, I have many! Nice to see you got back on your hateraide diet rogan.

[91CRXsiR]

i hope you all realize that depending on which method you use to raise you hoods, if you get in a front end collision. the hood won't buckle, just go back towards the drivers compartment. FA already had this discussion almost 3 years ago. search on there.


had my 1st 240 raised about 3/4 inch and slammed into a mountain going like 50+ hood buckled just fine..

[ThatGuy]

<--Vented Hood + Daily Driver + North Carolina Weather (a.k.a. Rain damn near EVERY DAY!) = No problems for me. In other words you'll be fine.

p.s. I don't remember where I ordered my Chargespeed hood from. I think it was Bulletproof Automotive, but I don't see it listed on their site anymore. :loco:

Edit: Just checked my Credit Card, I bought my ChargeSpeed FRP hood from Intense Motorsport. :blah:

[TheSquidd]

Yeah I intend to purchase an Origin FRP hood which has vents molded into it, and is sexy as all fawk. So these vents are temporary.

[wootwoot]

if its a fiberglass hood you dont have to worry about buckling anyway.