ShawnOk

iTrader: (1)

Exactly, Mandyfig... that's why I went with Weapon R vs Injen. I had it measured by both companies, and knew there would be just enough space with the Weapon R to allow the OEM scoop to remain but not Injen. I originally thought about melting a Shop Vac Wide Rectangular Nozzle Attachment to the OEM scoop and outlet to a 3" hose to also drive the air from the OEM scoop but never got around to it.

mandyfig

I actually installed a simple diverter behind the grille so that air can be sent through the headlamp holes (I tucked the rubber thingys away and tie wrapped it so the air can freely go through) directly into the insulated chamber I built.

Using the Scangage I noted down the temperatures of the intake air in various driving conditions:

1. At rest (in a stop light), in the heat of summer, temps go to 120F while ambient was like 90+F depends on how long you are parked.
2. Soon as start going in a few seconds the intake air temperature equals the ambient.
3. Running at 30 MPH and higher, it scoops the ambient air like the OEM scoop does.

Obviously when parked, that’s when the temps go high. I do not think there’s a negative impact on the engine.

I have a Miata and it has the MazdaSpeed intake where the filter is in the bottom near the grille. When on a stop, it picks up the ambient air in the engine bay as well, which was a surprise to me. I am planning on adding insulation on the long pipe to stop it from some heat transfer picked up on the engine bay (like the SC).

LoveThatV8

iTrader: (1)

Nice write up mandyfig... planning to do this on my GS.

Options2k

Hello Mandy,
I want to build a CAI box like you did. Can you post a picture of what you did to direct more cold air to the box. Second, can you please post what material you used to build the box that is in place now?

Finally, there are two vacuum tube ports on injen. But, how many are used for 2006? I have a 2006 and most installs I have seen here are pre 2006 thus I ask. I would like to hear from someone who has done this on a 2006, pictures would definitely help.

Thank you.

mandyfig

I will try to take pics of the simple diverter I did, can not promise you that you will understand it. As far as the difference between pre-2006 and 2006, the engine remained the same throughout the SC430 life. I am sure you have the same 2 ports.

06 owners can you confirm?

Options2k

Thank you Mandy. Please let me know what material (and where you bought it from) for your current airbox.

Cheers.

mandyfig

Ok, I took a Black Binder (3 ring binder) and cut up a piece (cardboard wrapped in plastic and used it as my scoop or diverter), I simply bore holes and tie wrapped them on the grille using black tie wrap, small petite ones. I also used the ever reliable duct tape to deal the bottom of the diverter, I suggest you use Gorilla tape, color black.

I folded the rubber cover for the headlamp to open up a pathway to the Injen Intake chamber. I also used tie wrap to get the rubber cover tucked in.

Here are pics that can let you imagine how I did it.

mandyfig

As for the intake box itself, I bought a 2x4 feet plastic laminate board at Home Depot, applied an insulation wrap, also bought at Home Depot on one side. The other side, I used the Carbon Fiber laminate.

This is the material I used to insulate:

mandyfig

And you did not have to cut up the cover...looks like an OEM install, I just noticed that today.