Blow Off Valve help!

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Dec 27, 2008

#21

• Dec 27, 2008

• #21

98stangv8 said:

BK..

One other question...by BOV is before the MAF...so the air that is being let go is not being read by the MAF...I have a blow thru setup...

Can this still cause these problems?

Thanks!

Click to expand...

i dont know. i doubt it. those syptoms sound more like vacuum leaks.

do you have a wideband? or a boost gauge?

if not no biggy i was just curious to see if we could see how much air your losing. just hook the BOV up and see if that resolves anything.

 

98stangv8

Active Member

Oct 3, 2003

1,036

0

36

fayetteville, nc

Dec 27, 2008

#22

• Dec 27, 2008

• #22

I have both of those gauges...when I was test driving it...I could barely get it into boost...

they keep thinking it is a MAF problem...I don't...

 

SaleenGT2001

Well-Known Member

Jul 18, 2005

2,811

4

58

Four Oaks NC

Dec 28, 2008

#23

• Dec 28, 2008

• #23

it is not venting metered air. it is a blowthru setup.

the vac line looks fine to me. it is just t'ed into an existing line so why would that be a problem? it is after the TB if i'm looking at the right pics.

also a power pipe should work just fine. you may need to lose the shiney upper radiator hose

 

SaleenGT2001

Well-Known Member

Jul 18, 2005

2,811

4

58

Four Oaks NC

Dec 28, 2008

#24

• Dec 28, 2008

• #24

this is where the vac line is hooked to, correct?


View attachment 282213

 

SaleenGT2001

Well-Known Member

Jul 18, 2005

2,811

4

58

Four Oaks NC

Dec 28, 2008

#25

• Dec 28, 2008

• #25

*edit*
i may have been reading this wrong? are you saying you do not have a vac line hooked up at all????

that would cause a major problem with idling/driving the car.

 

SaleenGT2001

Well-Known Member

Jul 18, 2005

2,811

4

58

Four Oaks NC

Dec 28, 2008

#26

• Dec 28, 2008

• #26

does it sound like this
listen at the 0:46 mark

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Dec 28, 2008

#27

• Dec 28, 2008

• #27

he isnt building boost because the BOV is open at all time. thats why i wanted to know if you had a boost gauge.

and the picture SaleenGT2001 posted is the correct spot to have it hooked up. ive seen a few people hook it up to the pcv port before the tb and cause all kinds of problems. but not having it hooked up at all will do the same.

 

98stangv8

Active Member

Oct 3, 2003

1,036

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36

fayetteville, nc

Dec 28, 2008

#28

• Dec 28, 2008

• #28

SaleenGT2001 said:

does it sound like this
listen at the 0:46 mark

Click to expand...

I watched the original vid...couldn't hear anything at the :46 mark..

The pics I put up were on the old engine...not mine...the shiny radiator tubing is not on mine...

And you are correct...I have no line connecting the BOV to the plenum...right now just venting to the atmosphere..

thing clicks constantly when driving...had trouble getting into any boost on my gauge...always in the vacuum...

a/f was all over the place...tuner is having a hard time....keeps saying something is wrong with the MAF....

After hearing all this...I should have gone to Fastlane!

Thanks!

 

04YELLOWGT

Active Member

Jun 29, 2005

1,135

2

39

Indiana

Dec 28, 2008

#29

• Dec 28, 2008

• #29

No you should go to Fastlane. Obviously the clowns that are working on your car don't have a clue what they are doing. Tell them that you are going to take it to a different shop and that you want some of your money back.

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Dec 28, 2008

#30

• Dec 28, 2008

• #30

98stangv8 said:

And you are correct...I have no line connecting the BOV to the plenum...right now just venting to the atmosphere..

Click to expand...

we are asking mainly if the vacuum line is connected. and the BOV you have is designed to vent to the atmosphere you will need a BOV like THIS to recirculate it back into the intake.

 

98stangv8

Active Member

Oct 3, 2003

1,036

0

36

fayetteville, nc

Dec 28, 2008

#31

• Dec 28, 2008

• #31

BK_CAULEY said:

we are asking mainly if the vacuum line is connected. and the BOV you have is designed to vent to the atmosphere you will need a BOV like THIS to recirculate it back into the intake.

Click to expand...

My BOV is a HKS SSQV....even if it is meant to go either way...atmosphere ore into intake...seeing that the previous owner had it going into the intake in the above referenced pics....I think that is part of the problem I am having...

 

B

blubullett

Member

Jun 22, 2006

535

6

18

Modesto, CA

Dec 28, 2008

#32

• Dec 28, 2008

• #32

The bov has a little 1/4 inch fitting on it that is supposed to be connected to a vacume line from the manifold and a 1 1/4 inch or so that is supposed to vent back into the intake piping before the supercharger. In a blow thru setup your bov is hooked up before the maf. check prochargers website for a generic diagram of a blow thru supercharger setup.

 

SaleenGT2001

Well-Known Member

Jul 18, 2005

2,811

4

58

Four Oaks NC

Dec 28, 2008

#33

• Dec 28, 2008

• #33

i didnt realize you werefrom NC. what part are you from? i'd be willing to drive down and datalog/ help find your problems.

+1 on the Fastlane comment. they are a great bunch. they did the engine build and dyno for my car. also check out HorsepowerJunkies.com it is a great local forum

what shop is doing your work for you?

*edit* i see your in fayetteville. if you dont have any plans i can swing by tomorrow after work and see whats going on with your car

 

SaleenGT2001

Well-Known Member

Jul 18, 2005

2,811

4

58

Four Oaks NC

Dec 28, 2008

#34

• Dec 28, 2008

• #34

can you get a pic of the BOV on the pipe an little closer? i think it would be venting to the atmosphere. that is not a problem but not having the vac line hooked to it is a problem.