Spec_b

Does anyone know the orfice size of Vishnu's "Passive Boost Solenoid Emulator" or restrictor pill for their 300HP upgrade for our cars?

http://www.vishnutuning.com/legacy.htm

Do we have any dyno claims to back up their 300 (crank I'm assuming) HP?

but a smaller pill hits higher boost targets, so why'd you go larger?

I tried tuning my car with a 1.0 mm pill. It works but the WGDC needed to hit target boost is too low for my taste (40 to 50%).

 

For anyone tuning their own car who wants an aggressive stage 2 tune, I recommend a 1.1 to 1.2 mm pill for VF40 2005-2006 cars.

hey thanks for the chart. I just ordered 22326KA120 which according to cobb's chart is 0.028" but the link's chart shows that pn as a 0.0472. I don't know which one's right so I ordered both, they're only $3 each.

For those of you who tune your own cars, I thought it would be nice to have a list of P/Ns for different restrictor pills. Cobb lists these values but do not include P/Ns.

 

Thanks to King of Parts for providing the list of part numbers. It was also important as a double check. For example, I thought that the 2006 and 2007 WRX had different pill sizes.

 

If anyone has any updates/corrections/additions, please let me know and I'll add it to the list. If anyone has a list of pill sizes for non-Subaru cars that will work, let me know too.

 

MIG welding tips also work, but for the low cost of a OEM pill, it's easier just to get an OEM one.

 

For all those noobies out there: Don't change your pill size unless you are getting a custom tune.

 

Values in italic are not confirmed.