Post your vacuum hose diagram. I assume you have the 1MZ. If it is the same as the 3MZ then you need a small vacuum reservoir and a clean air port for the active engine mount. The EVAP canister close valve may also be on the air box to allow clean air to the canister. The MAF is mounted to the air box. Make sure the kit has provisions for it.

 

I'd be interested in the results. Let us know especially with the spaghetti of all those tubes.

 

u'll be sucking in hot air from the engine bay instead of cold air from the outside, it's best if u can get ur pod filter located to front grill of the car, it needs a little work but it will help in the long run.

 

The opening to the intake is already in the engine bay and is located forward of the fuse box in the corner and forward of the wheel. Now I know nothing about this stuff but to me it's already sucking in hot air from the engine bay so the only benefit will be less twists and turns with a short ram intact.

As An Trinh mentioned getting the pod somewhere where it can access cold air may help. There seems to be plenty of room adjacent or behind the radiator lower down but I've no idea if it's a good location.

I haven't looked closely but was wondering if some vents could be installed in the inner wheel arch? The opening to the air intake is on the other side. A caveat would be water splashing from the wheel and getting sucked into the engine that way... Another caveat is that surely Mr Toyota would have included such a design if it was so simple?

There seems to be very much a science to getting good air into the engine and I did geology in school which doesn't help here lol

 

Can you post pics of your SRI install process?
It sounds like you might be looking to add a cold air intake, instead. The main purpose of a SRI is to reduce constrictions on the intake, although they don’t help with air temp being pulled in. A CAI is usually longer to where the filter is placed in a location to pull air from “outside”, such as the wheel well. Yes, there is an increased risk of pulling in water this way.
Both give you the cool “sucking” sound and might give you some performance gains (usually at higher RPMs).
My previous car was a Toyota Matrix Xrs (2zz-ge engine with 6 speed manual transmission). It was designed for high RPMs (didn’t red-line until 8200). The Matrix owner community was all about adding SRI and CAI. The most I ever did with mine was put in a K&N reusable filter into the stock airbox. Even that “mod” made a difference.
Your project is interesting, either way. I’m curious what gains you will see. I need to do maintenance, or clean-up, or something to improve my gas mileage. I’m not getting what others here report. ;-)
Keep us posted on your progress. 👍

 

I’m not getting what others here report. ;-)

I'm not getting what -I- used to report, either.

Speed of highway traffic has really ramped up in last couple years.

 

Throwing this into the mix. My HL doesn't have fog lights just a cover at the back of the housing in the bumper but I was thinking there might be some merit in using these as ports to send outside air to the air filter.

 

with some work and some pipe and silicone coupler u can route the filer to the fog light spot on the bumper . those days are behind me, i've done all that and now i don't have the interest any more.

 

This is why cutting and "scooping" the hood was so popular in the 60s & 70s.

Get yourself a good-quality sheet metal nibbler, and talk with a decent body shop about fabing the scoop, and installing it for you--keeping in mind that rain water needs to be separated from the incoming air stream (a good shop will already have those elements down pat).

Post photos.

 

Will do. Still tossing up between putting in fog lights or using it as an air intake point.

In the meantime anyone know why there's a cutout in the hood insulating material in this location? It's above or slightly adjacent to the battery and close to the airfilter box? It's a HL. No way a vent/intake was ever planned to be put in the car in that location...unless it was?