Lost boost when I went back to stock BOV?
Mar 27, 2009, 06:31 PM
#1
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Lost boost when I went back to stock BOV?
So I recently sold my HKS BOV to go back to the stock one. But what I noticed afterward, is that full boost comes at 300 RPM slower and 5 PSI less! What the heck? I checked all the hoses, everything seems to be tight, I have no idea what is wrong with my car.
My mods are...
T1R intercooler pipes
Agency power intake
Cobbs stage 2 93+SF
Edit:
So I might have found the reason for this. Apparently the stock BOV opens up at certain PSI, this is perhaps the reason it is spooling slower. Also, when I take a look at the datalog, I get virtually NO knocks compared to the HKS BOV SSQV, probably because I was running VTA instead of recur.
My mods are...
T1R intercooler pipes
Agency power intake
Cobbs stage 2 93+SF
Edit:
So I might have found the reason for this. Apparently the stock BOV opens up at certain PSI, this is perhaps the reason it is spooling slower. Also, when I take a look at the datalog, I get virtually NO knocks compared to the HKS BOV SSQV, probably because I was running VTA instead of recur.
Last edited by jackygor; Mar 28, 2009 at 01:03 PM.
Mar 28, 2009, 07:40 AM
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That's funny. I removed my HKS SSQV and put the stocker back on... you can definitely notice a difference... I have a feeling that the stock diverter valve is leaking under pressure.
Hate to admit it but... I actually miss my HKS! lol
Hate to admit it but... I actually miss my HKS! lol
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Mar 29, 2009, 01:46 AM
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I am having the sme problem, I was having issues with the car shutting off under part throttle boost like in 4th and or 5th gear, but when I changed the BOV back to the stock one it does not do it at all anymore. I can actually hear the Bov leak sometimes lol. I also went to the track the other night and could only make a 13.3 pass or something like that and the mph was way down, the only mods are the boost is turned up to like 24 and and have a full exhaust. so I dunno, my guess is as good as yours.
Mar 29, 2009, 02:42 AM
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what was this cheap fix that you speak of, because I still have an HKS as well but it was creating way to much flutter in the intake and throwing the maf way out of wack and then shutting the car off
Mar 29, 2009, 06:20 PM
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does this really work, or is this someone just messing around trying to fool me lol. because at this point i am willing to try anything just want my car to be running at its best ya know.
