On 91-96 MR2 Turbo's the BOV is before the intercooler. Just wanted to share.

 

My friend puts his bov almost at the same spot on his supra...the point is that the charge that is going through the intercooler causes pressure drop..its phsyics..that is why bigger and thicker intercoolers causes more pressure drop allowing more boost do to that pressure drop in the manifold..also as the charge goes through the intercooler its looses pressure so the closer you mount the bov next to the intercooler the more loud its gonna be...becuase of the less pressure drop. thats why the supra guys put theirs at that location.

 

True..my cousin has a mr2..i think its because the pipping design on the car..but i will look more into that one..and thats why his car blows off so daam loud!

 

i know on silvia's and 240's w/ sr20det's they put the bov right after the compressor. i am getting my sr20 soon and wanted to know why they did this too. i didnt get an answer but none of them are routed back to the intake and i imagine when having a MAF it would be important for the engine to see that air cause it was already acounted for. i'm sure you wouldnt want to vent the air from the turbo to the intake being 300 degrees or so. this is a good ? and is an interesting thread to read all the responces. but if anyone has looked @ thier directions for the type s it has a diagram putting the bov between the intercooler and tb, so....... ?

 

thats a very good reason indeed! i never thoiught of it like that. however, what about the issue of the air getting turbulent between the pre-IC BOV and TB. will it be better, worse or the same as if the BOV was place right before the TB?