K&N Induction Kit, Question Options

[manphibian]

Hi, today i fitted the kit. It sounds AWESOME proper growly

Here's the Setup (UK 3S-GE), i have a heat shield on it to try to stop it sucking in hot air:


Now the thing is, the heat shield stops me being able to point the cold air feed from under the car straight at the filter so it kinda just points across it:


Is this a problem?

[BLINKYxMUNKEY]

Don't think it should be a problem. Looks good though. I just fitted a K&N Intake system on my dad's Frontier this morning also.

[tin_foil]

I say take the heat shield off. It's counter productive. Metal, especially aluminum, conducts heat really well, which means the shield will heat up just as hot as the temperature of the air in the engine bay, and the it will easily radiate the heat right out to the air surrounding and being sucked in by the intake. Just take it off and let the air feeds point directly at the filter. I guarentee it'll work better.

This post has been edited by tin_foil: Dec 16, 2006 - 4:21 PM

[manphibian]

I say take the heat shield off. It's counter productive. Metal, especially aluminum, conducts heat really well, which means the shield will heat up just as hot as the temperature of the air in the engine bay, and the it will easily radiate the heat right out to the air surrounding and being sucked in by the intake. Just take it off and let the air feeds point directly at the filter. I guarentee it'll work better.

Really? hmmmm. I see wht you're saying. It's stainless steel, but yeah. it may be better to have the cold air feed pointing straight at the filter.

I just figured when it's sucking air, with the barrier there it will mainly draw air from the right-hand (cooler) side.....

now i'm more undecided

[tin_foil]

Really? hmmmm. I see wht you're saying. It's stainless steel, but yeah. it may be better to have the cold air feed pointing straight at the filter.

I just figured when it's sucking air, with the barrier there it will mainly draw air from the right-hand (cooler) side.....

now i'm more undecided

If you've taken physics, you know that convection (heat transfer through circulation of the hot air) is the second best way to transfer heat (the best of course, being conduction, which means one hot thing actually touches the other). This means that when your intake is really sucking hard (e.g your at high RPMs) it'll be pulling air in from all around it. So maybe the air pulled from the right-hand side will be cool, but the air pulled from the left-hand side will be passing right by that hot metal, heating up, then going into your intake. I really think your best bet is going to be pointing both vents right at the intake without the shield. Not to mention, when your at high RPMs you'll probably be going fast, which means you'll have more air coming in through the vents. You don't want to impede that air flow by putting up a piece of metal that'll end up actually blocking some of the air flow. Theroretically if you have both vents pointing right at it, and can actually somewhat pressurize the air going into the engine you'll have the best preformance. It'll act like a mini, mini supercharger.

This post has been edited by tin_foil: Dec 16, 2006 - 5:16 PM

[tin_foil]

You could also just try crusing around one way for awhile, then switch and try the other way. Don't fool yourself, we're probably only talking about a 2-5hp difference, but you just might be able to feel it if you know your car really well.

[manphibian]

You could also just try crusing around one way for awhile, then switch and try the other way. Don't fool yourself, we're probably only talking about a 2-5hp difference, but you just might be able to feel it if you know your car really well.

Yeah, i'll definitely try it. And yeah, i've studied physics too, although it was quite a while ago

Maybe i'll put a funnel on the ends of the air feeds, as in theory that will pressurize the air

Who needs a turbo

Thanks for your input

This post has been edited by manphibian: Dec 16, 2006 - 5:22 PM

[celicaST]

or just get a gt-four hood, thatll keep your engine bay nice and cool

[manphibian]

or just get a gt-four hood, thatll keep your engine bay nice and cool

Yeah i'd love one. If it was just the hood you needed then i'd have done it, but the parts list is pretty big! I don't think santa could fit all that lot on his sleigh!

Here's the new setup, gonna test it out now:

[manphibian]

well, i took it for a blast, and tin foil.... you're correct.

It was noticably better without the heat shield. Better throttle response and afterwards, the temperature of the intake pipe from the filter to the throttle body was CONSIDERABLY cooler.

Aiming the cool air feed straight at the filter makes all the difference.


experiment over.

[Slick]

Awesome setup! That's exactly what i've been looking for! Where did you get it and how much did it set you back?

[manphibian]

Thanks man, I got it from ebay in the UK, it cost about GBP 80

Here's a LINK only works on 3S-GE 2L engine.


It comes with a cool rubber scoop that fits the cold air tube to the undertray and scoops up all that lovely cold air

This post has been edited by manphibian: Dec 17, 2006 - 3:16 PM

[Slick]

Thanks man, I got it from ebay in the UK, it cost about GBP 80

Here's a LINK only works on 3S-GE 2L engine.


It comes with a cool rubber scoop that fits the cold air tube to the undertray and scoops up all that lovely cold air

Yep. That's the model i have (straight from Japan!)

Thanks!

[slick_celica]

i've got one of these set up on mine too and it works a charm. You can actually tell the difference. And a lovely noise of it! Tidy's the engine bay up a bit too.
Highly recommended by me anyway

[SteVeDaWg]

Hey, im planning to make a similar setup with a cold air feed to the filter and would like some advice. Where abouts is the best place to position the bottom end of the cold air feed, just behind the front bumper sitting horizontally, or straight down into the tray?

[SteVeDaWg]

Heres my setup atm, its sucking in too much hot air from the engine and isnt as efficient. i think im gonna go with the cold air feed rather than a heat shield or air box.

[manphibian]

Heres my setup atm, its sucking in too much hot air from the engine and isnt as efficient. i think im gonna go with the cold air feed rather than a heat shield or air box.

Hey, I'd say it's better to have it going down to the tray, there's a handy hole/scoop in the bottom of the tray to attach the tubing to, it's easy to fix there and is away from the radiator at the front which gives off a lot of heat. The air from underneath is guaranteed to be nice and cold

You'll notice the difference for sure.

[SteVeDaWg]

Thanx, yeh i saw those 2 rectangular holes in the tray, shouldnt b too hard to mount.

[UKcelicaKev]

I agree here with taking off the heat shield. I done that. I also sealed up the intake in the wing and followed the inner wing down to the large box behind the wheel/ front bumper.

I then cut a hole in the front. and with my veilside front bumper the cold air goes straight in the box and up to the air box mixed with a K&N panel filter seams to do the job for me very little if any heatsoak. i got 210 Bhp (btw i ve got a beams engine fitted to my ST and some lightweight parts). Its very noticable when it cold outside.

Kev

This post has been edited by UKcelicaKev: Dec 19, 2006 - 6:53 PM