Mindspin311

The inlet on the right side headlight, is it worth getting one? And who sells them?

Modified 7

depends

search..theres so many threads on this

speed_monkey

I forgot the place i saw them but they are like $90

Mindspin311

Yea after thinking for a bit and realizing that there is hot air (high pressure) that the scoop would just help expell air out of the bay rather then get cooler air in. Im not buying it.

George84

I got one from corksport.com

86GXL

i built my own. I beleive that it DOES let cool air in because I always see bugs splattered inside my engine bay behind the scoop.

Mindspin311

Hmm

NZConvertible

Does it let cold air in? Yes, but only if you remove the weatherstrip behind the headlight. Is the hole big enough to let enough cold air in to make a worthwhile difference? Hell no...

Ocelot

The cold air won't even matter that much, it's a turbo, turbo's heat up the air anyways which is what an intercooler is for. Reducing the intake air temps by a few degrees wont give you ****, especially not worth what most places will ask in price for one of those things.

eriksseven

iTrader: (6)

^ good point... I'm not getting one.

lol

NZConvertible

It's not a good point at all, it's completely wrong. Someone who makes that comment has obviously never driven a turbo car back-to-back with and without an effective cold air intake. Cold air intakes are just as effective on turbo'd engines. It can make a very noticable difference if it's done right.

It doesn't matter that the turbo heats up the air (and hopefully the intercooler cools it down a bit). If your cold air intake causes the air to enter the intake system 20deg cooler than it would without it, then when it reaches the engine it will still be around 20deg cooler than it would be otherwise.

Battyboy

^ good point

lol

Ocelot

Yes I have, and i've experimented with cold air intakes on the car the original poster is currently driving (used to be mine). How do you figure this anyways? 20 deg cooler? Extremely unlikely. Theres little to no difference and i've felt that.

13b4me

As stated above, any way to drop the IAT even a few degrees is worth it...
And I've driven a heat-choked TII and then the same car with an effective intake,
and it made a noticable difference in the upper RPM range...

Think of it this way...
You're standing in the sun wearing a black sweatshirt in the summer...
Then you cut holes in your shirt and jump in the back of a truck...
Which one would be cooler? Not too hard to figure out...
As long as you have a way to isolate the incoming cold air
between the duct and the TID itself, you'll notice an increase...
A custom cold air box and some heat wrap would be a nice addition...
You gotta keep in mind that one component alone won't make much of a difference...
It's only one piece of the puzzle, after all...
How effective is a TII hood if you got a SMIC?

You can buy these from Cork Sport or Mariah Motorsports...

Rx7Ridah

iTrader: (8)

well, it appears as this is going to turn into another one of those **** flinging contests to heres my pile... first of all our engines are extremely prone to detenation, which by explaination is the preignition of the a/f mixture which causes rapid increases in peak combustion chamber pressure and changes the flame front travel through the mixture prior to the rotating assembly being past tdc, hence no power and a ton of extra stress in places not meant for it. colder air is less likely to detonate. proven point. cold air intakes do make power on every car. that is another proven point. for every couple of degrees colder (i think its like 7-10 degrees) you gain like 1% or so. yeah its not much but hell its power. secondly that air scoop thing for the headlight duct is more or less useless. more cosmetic then anything. its also been proven that scoops like that feeding intakes only add extra effciency at certain speeds. high speed create too much turbulance actually reducing their effectiveness, and low speeds dont force enough air in. so all in all its your $100 spend it how you like, but i would skip the scoop and biuld my own cold air intake feeding from an outside the engine bay source.

13b4me

As stated above, any way to drop the IAT even a few degrees is worth it...
And I've driven a heat-choked TII and then the same car with an effective intake,
and it made a noticable difference in the upper RPM range...

Think of it this way...
You're standing in the sun wearing a black sweatshirt in the summer...
Then you cut holes in your shirt and jump in the back of a truck...
Which one would be cooler? Not too hard to figure out...
As long as you have a way to isolate the incoming cold air
between the duct and the TID itself, you'll notice an increase...
A custom cold air box and some heat wrap would be a nice addition...
You gotta keep in mind that one component alone won't make much of a difference...
It's only one piece of the puzzle, after all...
How effective is a TII hood if you got a SMIC?

You can buy these from Cork Sport or Mariah Motorsports...

Ocelot

Just about the most useless analogy ever....stick some turbochargers in your sweater holes and you're more on topic...

hondahater

iTrader: (2)

lol, I started a thread about this exact thing a while back and did a bunch of research on all sorts of websites including all the rotary websites and most of any other car sites and the general consensus is that it will not yeild a substansial power differance however if you are worried about detonation then the cooler temps aid in helping reduce chances of detonation.

13b4me

That's why I mentioned "isolating the intake air"...
ie; a cold air box...
Granted the headlight cover won't improve airflow drastically,
it does give you the option of routing air from the outside...
Most diehards prefer removing the FTP's though...

YearsOfDecay

I've used it with both N/A And turbos.... #1 Rule.. it works best for N/A's, but, you must build a baffle box to keep the hot engine bay air away from your filter... and the box must be sealed against the hood and the frame rail at the bottom (i used Air conditionerwindow foam from wally world.) If you don't have a baffle box... its still going to pull hot engine air from the engine bay..

I actually averaged 1.5 10ths of a second quicker at the track after installing the headlight scoop and the shroud box on my N/A over 10 runs...

As for the TII... the results here are mixed... I have the filter right smack on the end of the turbo (no MAF, haltech).... I had a pipe run to the box then to the turbo... and it fellt like the added restriction hurt throttle response and turbo spoolup... the turbo's going to heat the air anyway, and with my FMIC, the cars seems to run better with the filter on the turbo and be damn the hot engine air getting sucked in...

C-Murder

There are better ways you could get cold air in my opinion, the headlight vent is too small and looks horrible, in my opinion anyways.

SureShot

I don't have a big budget or a wind tunnel dyno, but I have studied the race cars of those that do.

ALL have cold air intake setups..

Node

iTrader: (1)

thats awesome


and yeah, a few people have said it already in this thread. But CAI is for N/A's. Turbos have intercoolers.

There are points when a cooler intake temp will make a difference, but it isn't near as critical as a non-turbo car.

NZConvertible

Your cold air intakes must suck then, because I have noticed the difference engine bay air makes to power, as have most other people who've done CAI's right. The 20deg was just a number I picked out of my head. Engine bay air can easily be 30deg or more higher than ambient (I've measured that). It'd be crazy to think dropping intake temp by that much makes "little to no difference".

MrFC3S

Holy Revived Posts Batman

Has anyone really considered Intake manifold temps on a warmed engine? Im sure they arent exactly cool... so the incoming air is heated anyway even on a NA, is there a way to decrease Intake Manifold Temps? I think that it would make the CAI more effective...
Another thing to consider would be venting the Engine bay... rear proped hood?


as for the vent... I honestly dont think Id help that much, but if it does oh well, I want one anyway