I noticed there is a plastic tube that runs into the fenderwell that goes into the stock airbox. I have heard that this tube runs into the fenderwell and goes to the dummy corner vent next to the lower grill. Can anyone confirm this? I have the TRD s/c and am thinking about purchasing the Umnitza intake seeing as how that is the only one that is compatible. I want to create a ram air effect.

Where does the plastic tube in the fenderwell go to?

ANYONE?

 

The stock "plastic tube" that you mentioned is about a foot long, so it just ends somewhere above the wheel inside the fender. On your car it should be removed and should be in your SC box along with an old oil pan and header heatshield.

TRD replaced it with a soft rubber thingy that just goes in the fender and that's about it.

 

Yeah I did notice that it was in the box. Do you have any idea why they replaced with with the rubber thingy? I really want to get a ram air effect.

 

Is there anyway to direct air from the corner vent thing to the air box?

 

The stock intake piping is very small, and doesn't extend far at all. The lower half is highly restrictive and should be removed, IMO. Stock cars should see a gain (which i can't prove, but can attest to), and ZPI even saw a 20+ whp gain just by removing it on their supercharged car.

If you want to direct cold air to the S/C, you're going to have to design it yourself using dryer hose or some other air ducting.

However, i will warn you... You might see a large gain by modding the intake tract before the S/C, but only to a certain point. The nature of your engine is now very different than from a typical NA setup, where every little bit counts. The S/C will only push a certain PSI, based on pulley and turbine size, and in doing so, heats up the air drastically.

There isn't much point in dropping intake temps 10 degrees if the supercharger is going to heat it up 70+ as it compresses.... so i wouldn't spend too much money trying to figure out a cold air setup.

You might be much better served figuring out how to get a small front mount intercooler on there, so when you increase the boost later, it can be cooled sufficiently AFTER the S/C has done its magic. I would also check to see if you can run a diverter valve setup instead of a BOV... that way, you can recirculate and possibly recover boost inbetween shifts.

 

for my na car i took out the stock tube and fabbed up a steel piping assembly that i hooked to that front left grill. that stock tube is not hooked to anything it just hangs about a foot away from your airbox not even close to the front of the car.........s/c is another story i have no clue how that thing is hooked up.

 

Putting an intercooler is a bit iffy for me. My guess would be that ECU expects the intake air temperature to go up after the air passes through the MAF and gets compressed by the SC, and the maps are adjusted for that temperature increase. If we put an intercooler in without changing the maps / ecu tuning we might run into some long-term problems. That's why I'd try to cool the air down before it enters the MAF as much as possible first. And then wait and hope for the TRD intercooler kit if it was not a hoax of course.

OE filter that TRD included in the SC kit is equivalent in surface area to a cone with 3.5" diameter with height equal to the width of the OE filter. Any cone filter on the market is bigger than that, so more airflow. And taking a "fender" part off any currently released intakes and connecting it to the OE piping will allow moving the filter inside the fender. One little issue though - the MAF flange is on the other side of the K&N and Injen piping.