Restrictor pill wrx install

This image has been resized. Click this bar to view the full image. The original image is sized x I think tuning is a crime of passion, or maybe a labour of love.

Either way it furiates and excites me. Back to top 2 Dylan Dylan Almost gen2 time. Posted 29 April - PM. Back to top 4 Jimbo Jimbo Livin' the Legacy. If using an aftermarket EBC system, you wouldn't need the pills at all. The newer BCS work a bit differently to the ones used in old systems. The old ones used to be a 3 port design where there was in, out and bleed off which went back to the intake. Newer ones just have a line as you can see above teed off the wastegate and compressor line which goes to the BCS.

The second hose from the BCS then bleeds to the intake. The restrictor pills should only be necessary using the stock BCS setup. All they do is limit the flow to the wastegate and BCS so the wastegate doesn't blow open early. It's all in correspondence with the pressures the stock BCS works with, gives smoother boost control and a more linear power delivery. However, hooking up an aftermarket EBC or MBC would negate the use of the pills as they can manage the desired pressure, usually utilizing a 3 port design, much like the early BCS setup ie in-bleed-out.

I love mspaint so much i have explained how each BCS system works. Posted 03 May - AM. Back to top 6 Adam Adam Snack down!. Back to top 10 Adam Adam Snack down!.

Posted 03 May - PM. Posted 04 May - PM. Back to top 15 Jimbo Jimbo Livin' the Legacy. Way to steal my mspaint thunder, Aek! The reason for a pill in the 2 port design is probably much like the reason for having a pill in the BOV line. It basically just smooths out the system.

Also, note the shape of the hoses, without the pill the air would just go straight for the wastegate. The pill slows down the pressure buildup and let's the BCS do it's thing efficiently.

Really digging this discussion Something I can actually follow! Back to top 19 Jimbo Jimbo Livin' the Legacy. Posted 14 May - PM. Back to top Page 1 of 2 1 2 Next Back to General 0 user s are reading this topic 0 members, 0 guests, 0 anonymous users. Community Forum Software by IP. Board Licensed to: SubyClub. Sign In Create Account. Page 1 of 2 1 2 Next. Posted 27 April - PM Hi guys, I found this guide on another forum about restrictor pills and found it very useful.

It could even become a sticky. Apologies if it's a repost, common knowledge or I'm not allowed to link other forums. Next, remove the plastic under tray by using the flathead screwdriver to remove the pushpins and the 12mm socket to remove the two bolts holding the under tray to the car.

Recommended: Take pictures of where each pushpin is for your future reference. Due to the boost spiking that is common on the VA WRX that becomes even worse with exhaust upgrades , our Stage2 maps require the deletion of the restrictor pill.

If this is not done, underboosting will result. The hose and pill in question are shown below. Alternately, you may remove the pill from the OEM hose, set the pill aside and reinstall the hose. Calibration Map Notes for Subaru Vehicles.

Link to Subaru Map Notes to see what map you should be on given the parts you've added. Email: support cobbtuning. Phone support available 9am to 6pm Monday-Thursday. Customer Support Center. Overview Pages. Created by Brandyn Mowat.