dynoed tonight
If your talking about the Blow off valve the top port should be conected to to a vacume source(intake) and the bottom port should be left open(vent). But if your talking about the wastgate thats a differant story. The blow off should stay open untill you go into boost.
If your talking about the Blow off valve the top port should be conected to to a vacume source(intake) and the bottom port should be left open(vent). But if your talking about the wastgate thats a differant story. The blow off should stay open untill you go into boost.

the other side of the tube originally goes to the turbo discharge.. but if you want to see a touch more boost without a controller you can go to the intake behind the throttlebody.
if you want more boost on low low bucks then you can run a low psi air pressure regulator in this line, as you crank it closed your boost will go up.
i have these at work and i can send you one to fool with if you want. but lowes/homedepot etc. should have.
the bov.. my ssqv only had one port that port is connected to a vaccum source, meaning has to go behind the throttlebody. then the screw on the back you loosen until you can hear air leaking at idle, then give it a couple turns back in and lock down.
the bov's with two ports i didnt think they were or needed to be adjustable becuase of the second 'balance' port. that is connected to a boost only source (in front of the tb)
either way it should definitely not be open at idle unless you are running the recircluation tubing after the bov. i havent seen the standard bov with the recirculation set up on a car myself, but thats how it should work.
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I had absolutely nothing to do with the install!!!! I went to Transdamit's shop personally to scale his injectors and give a starting timing map..It was snowing so we didn't take out the car at that time.
The next day he drove to my house and said the car runs like crap..I asked if he checked all his work.He was very confident of his work and everything was right..I then tuned in the injectors and the car was running bad when loading the the engine up.After a little while I got it running good to 1/4 throttle and we were done till the dyno.At this time I asked him to take it very easy till the dyno,so what does he do when he leaves my house???Gets on it hard and pulls a MAF code
Two day's later I go to his work again.I take the car and instantly notice it's running bad.I go under the car and pull the vacuum line off the BOV..Guess what??It runs a 100% better.I guess the install was not right and I was wasting my time,,,AGAIN!!!
Now,I told him many times to take off the BOV so we can tune it..He doesn't!!Keep's jerking with it!!Obviously we were having a problem with it,so delete it for now!!Very simple!!
Last night we go to the dyno when it's 5 degree's out.After a few pulls working our way up the rpm range to check A/F and timing I notice boost pressure dropping.Low and behold another BOV problem!!
So,is this straight now.I only tuned this car and I'm tuning around the installers mistakes!!!
I'm pissed like Rob is about this.Now I know why he only sells this installed,it keeps people from installing it wrong and blaming him....
It amazes what people can actually expect from me...believe it or not, I actually have a life outside of LS1Tech and QMP.
I had absolutely nothing to do with the install!!!! I went to Transdamit's shop personally to scale his injectors and give a starting timing map..It was snowing so we didn't take out the car at that time.
The next day he drove to my house and said the car runs like crap..I asked if he checked all his work.He was very confident of his work and everything was right..I then tuned in the injectors and the car was running bad when loading the the engine up.After a little while I got it running good to 1/4 throttle and we were done till the dyno.At this time I asked him to take it very easy till the dyno,so what does he do when he leaves my house???Gets on it hard and pulls a MAF code
Two day's later I go to his work again.I take the car and instantly notice it's running bad.I go under the car and pull the vacuum line off the BOV..Guess what??It runs a 100% better.I guess the install was not right and I was wasting my time,,,AGAIN!!!
Now,I told him many times to take off the BOV so we can tune it..He doesn't!!Keep's jerking with it!!Obviously we were having a problem with it,so delete it for now!!Very simple!!
Last night we go to the dyno when it's 5 degree's out.After a few pulls working our way up the rpm range to check A/F and timing I notice boost pressure dropping.Low and behold another BOV problem!!
So,is this straight now.I only tuned this car and I'm tuning around the installers mistakes!!!
I'm pissed like Rob is about this.Now I know why he only sells this installed,it keeps people from installing it wrong and blaming him....
And the BOV is venting into to the atmosphere!!Not right with a pull through MAF!!!
That probably makes tuning rather difficult.
if its a push pull type then there could be a situation where no air is being metered as air entering the engine is comming from the bov port.
I give suggestions on what to do and it is not being done...I'm not new to force induction setups...I will be here to tune as said before..
You've blamed everyone but yourself? The car can run great with alittle work..
Take the car to the dyno with the BOV off. Make sure the WG is ok and then retune.
I wouldn't be blaming anyone yet.

Just remove the BOV and get it back on the dyno. DONT hammer the car at all.
You have to be very patient with FI, sometimes it takes many trips to the dyno to get things sorted out.
Chris
Last edited by Chris ARE 360; Jan 10, 2004 at 01:28 PM.





