R33 Cold Air Intake Pipe Diy

[RB_purr]

Hey guys just a quick tutorial on a DIY cold air intake which I made for my R33 GTS-T S2

Basically it a cold air flow pipe going up from the inside of the front bumper up through the old hole which the side mount cooler piping used to go through which I made slightly larger to fit my pipe through etc.

Tools needed:

-10mm/8mm ratchet/socket

-Jigsaw/hacksaw/drill (or whatever will be easiest for you to cut out a hole with)

-Metal file

Now the bits you need to buy are fairly cheap I got it all from bunnings

-flexible rangehood duct piping 1mtr

-100mm round rubber tube/hose

-hose clamps to suit 100mm

-cable ties

Once you have everything you need it should take about 1 hour to do. The flexible piping for those of you confused about what it is it's what's used in rangehood ducting or ducting for air conditioning etc. It comes in 3m at the smallest and costs $28. It extends out like a slinky and can be bent in multiple directions and lengthened by pulling it and shortened by squashing it down.

I only used a metre at the most and bent it into a 90 degree angle to form the air flow tube. The rubber tube with the hose clamps are what you use when connecting cooler pipe together etc I'm sure people know what I mean there's multiple ones throughout the engine already with silver hose clamps around them.

Now to get started I measured out a 95mm circle around the old side mount intercooler hole in the engine bay and cut it out using a hacksaw. I then filed all the sharp edges off using a metal file and measured how much piping I wanted to run from the front bumper and up through the hole you just made.

I then put the ducting pipe through the inside of the rubber hose and slipped it through the 95mm hole so that it just poked through by about 1cm. There is no need to screw or fix the piping in as the rubber hose should sit snug in the hole and not move around.

Once you are happy with how that's sitting tighten a hose clamp around the end of the rubber hose so it's clamping the ducting pipe inside of it this will stop it falling out.

Now I'm not sure what front bar people have obviously but mine was on a top secret front bar and I ran that piping down from the engine bent it at 90 degrees and fixed another 100mm rubber house and clamped it onto the other end of the ducting pipe to stop it curling from heat

and also so I could secure it to the underbody trim so it won't move around but make sure you have it sitting how you want it to before you cable tie it down to the trim and also point it slightly downwards so any water that might get in will run off it once you're done check it over and make sure it's secure

Well I think that's mostly all any questions feel free to ask me and also I did notice a difference in responsiveness with the turbo and found that it wasn't trying to chug on hot air from the motor

Next is a CAI box and will write up a tutorial when I do it. Sorry about the limited pictures but you get the idea

Hope this helps!

RB_purr