Can I just double check that the picture on the scoobypedia link for the 2 port diagram is correct?

Is it correct that the resistor pill goes in the pipe on the turbo housing side of the T-Piece?

 

Yes correct

 

Is this the case for all 3 port bcs? I know some suggest the pill goes back in on the 3rd port which vta or back to induction pipe?
I'm going to fit my 3 port this weekend so will leave the pill out if it's not needed.

 

Which models/year have 3 port and which have 2 port?

 

Yes its right or I would of not put the ink up for you .

 

MY93-96 ... 3 port solenoid 2.0mm restrictor fitted into the vent pipe between solenoid lower port and intake

MY97 (Euro) ... 2 port solenoid 1.2mm restrictor fitted between the turbo and the tee piece

MY97 (JDM) ... 2 port solenoid 0.9mm restrictor fitted between the turbo and the tee piece

MY98 (Euro) ... 2 port solenoid 1.2mm restrictor fitted between the turbo and the tee piece

MY98 WRX (JDM) ... 2 port solenoid 0.9mm restrictor fitted between the turbo and the tee piece

MY98 Sti 4 ... 3 port solenoid 1.5mm restrictor fitted between the turbo and the solenoid adjacent to the solenoid top port

MY99 (Euro) ... 2 port solenoid 1.2mm restrictor fitted between the turbo and the tee piece

MY99 (JDM) ... 2 port solenoid 0.9mm restrictor fitted between the turbo and the tee piece

MY00 (Euro) ... 2 port solenoid 1.2mm restrictor fitted between the turbo and the tee piece

MY00 (JDM) ... 2 port solenoid 0.9mm restrictor fitted between the turbo and the tee piece

MY01-05 (Euro) ... 2 port solenoid 1.2mm restrictor fitted between the turbo and the tee piece

MY01-05 STi ... 2 port solenoid 0.9mm restrictor fitted between the turbo and the tee piece

MY06/MY07 both WRX and Sti 2 port solenoid 0.9mm restrictor between turbo and tee piece



Here's a list of models with 2 ports and restrictor pill size and models with 3 ports and restrictor pill size

 

Many thanks only wanted to double check as have been told that it maybe between actuator and t-piece.

Many thanks for your help and advice

 

is that a classic 3port or an aftermarket? I would sometimes stick a pill in the vent port (one that can go back to the intake pipe) on an aftermarket 3 port just to smooth out the aggressiveness a little - classic 3ports are generally OK without the pill though.

 

Wind the boost up! get yourself a wideband afr and some det cans to check it, retain the oem boost control and either increase actuator tension or smaller boost nipple or both. I would say you run the risk of running rich and retarded rather than too lean and advanced (depending how far you push it) good idea to monitor the ignition advance now and after with a scan tool in live data, if its pulling more than 1 degree per .1 bar then its retarding too much.

 

It's the SWRD Pierburg bcs which is the same fitment as the prodrive,I will try without the pill and see how it goes,I will back off WG duty 40-50% to start then slowly increase where needed.