BoneEvo9

iTrader: (1)

Hi guys I need you guys helps, I been using the grimmspeed 3port and looking to go back to stock boost solenoid. is there anything I need to change in the map? or could i just plug up the stock boost solenoid and it be fine? if change is needed can someone pls help guide me to undo the 3port?? thanks in advnace!!!!

Cogito

2 things that needs to be done :

1. Install the stock solenoid, along with the proper vacuum routing for it, including the stock vacuum hose, which includes a restrictor.

2. Tune the wastegate duty cycle table on the ECU. In most cases, the required WDC for a given amount of boost will differ significantly between the two systems.

May I ask why you would go back to the stock 2-port solenoid? The 3-port design, properly setup, should yield better results overall.

BoneEvo9

iTrader: (1)

Thanks for reply...... i dont have the oem vacuum house anymore..... any way around it? Putting car back to stock selling it since i got an 2012 X now.

Cogito

Well, I don't remember the restrictor inner diameter, but it's probably somewhere around .02-.03". A method that I've used in a pinch, is to get a carburetor jet of similar ID, grind off the head and the thread, then insert it in your regular vacuum hose. I assume you know which hose goes where for a 2-port setup?

Don't forget to flash your stock ROM back, as the WDC would be improper otherwise.

BoneEvo9

iTrader: (1)

Dang this sux. My car is base full bolt on, fp red, fic 1250 injectors and 3 port boost controler, speed density, and egr delete. I need flash everything bak to stock but want to keep the egr delete and speed density.... might be harder then i think..... smh lol