Greddy profec setup/Bov seems to be not working.

Turbo Habanero

New Member
Apr 28, 2009
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Tucson,AZ
First and for most sorry for lack of information on the car it is not my car a friend bought it from someone recently.

I know that it has a older greddy profec boost controller set to .6 bar(assuming it is bar) a custum job for a intercooler with a Greddy BOV like this one below. claimed CT-26 61trim 550 injectors and Lexus AFM. its is a 87 with 91 7mgte motor

I do not no if the guy used anything to run the bov to keep it from reading the air flow wrong

Guy also said car was on 12lbs but isn't .6 bar around 8lbs boost gauge also reads around .6

So onto the problem) car seems not to make a blow off noise at all and i think there is also a vacum line possibly missing on the BOV in the picture you can see a lower piece for a vacum line on the car there is no line to go to that piece.

I also ajusted top screw on BOV and it seemed to clear up the cars struggling issue when you fist step on the gas it be for would seem to chug.

p1679013_1.jpg
 

joeyd23

GTE4ME
Sep 18, 2007
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waldorf maryland
My car had that bov when i bought it for a short time. From what I remember I only had one vacuum line going to
It. I believe there's a smaller vacuum nipple on it that I left open. If I remember correctly I think I turned
The adjustment all the way out, or soft. I defiantly remember that bov not being loud at all and when I did hear it it was faint and sounded like a door creaking.