I had the steel flange that came with the BOV welded onto a piece of exhaust pipe about 4" long and the same diameter as the IC inlet to make a kinda tee fitting. I then cut the rubber hose and installed the pipe just before the IC using hose clamps. I then put the BOV on the flange and ran silicon vaccum line of the correct size from the BOV over to the manifold where the big line comes off for the brake booster. I installed a brass tee fitting from NAPA on the manifold there to tee in my vaccum line. This is also a good place to tap into for a boost gauge. I will try to make some pics, but it will be next week before I will have access to my digital camera. The BOV comes with washers to set the spring tension. With no washers installed, mine didn't leak any boost at WOT at 15-16psi. However I installed two washers anyway just to be safe.
Blow-off Valves
- Thread starter Maverick87
- Start date
Mephisto
These trucks are cursed
i got a blitz universal BOV brand new from a friend of mine, but it came with an aluminum flange. anyway to make a custom aluminum pipe, since you cant really weld aluminum to steel? or should i just say eff it and get a new flange?
secondly how do you hook the thing up once you got it welded to the pipe? the one i got came with directions, but theyre in chinese or some asian language.
secondly how do you hook the thing up once you got it welded to the pipe? the one i got came with directions, but theyre in chinese or some asian language.
ghostrider_85
New member
what do you need the flange for? doesn't the BOV directly weld to the aluminum pipe?
Mephisto
These trucks are cursed
ok the final BOV question... from me at least.
ok now im supposed to hook the vacuum line from the BOV into the same vacuum line that goes from the manifold to the brake booster? so if i have an aftermarket boost gauge already set up, ill need to "T" into that line again?
how do you pull that off? buy that one guys bolt thingy with the 1/8" npt already drilled into the side, and drill a hole on the other side and put another 1/8th on there?
ok now im supposed to hook the vacuum line from the BOV into the same vacuum line that goes from the manifold to the brake booster? so if i have an aftermarket boost gauge already set up, ill need to "T" into that line again?
how do you pull that off? buy that one guys bolt thingy with the 1/8" npt already drilled into the side, and drill a hole on the other side and put another 1/8th on there?
Ian Turgeon
Cascading Inspiration
You could Tee off 2 lines from the brake booster, but I wouldnt tee off the small line feeding a boost gauge.
The only other good place to use is the source from the front of the intake manifold. Tee off the line before it goes under the throttle body
The only other good place to use is the source from the front of the intake manifold. Tee off the line before it goes under the throttle body
yea actually the guy who makes those fittings can do a custom job for you.
i actually have 2 fittings going off the brake booster line. exactly like how you need it. the fitting that he uses is 6 sided, so how he did it for me was tapped into one side, skipped one, and then tapped another side. works great...
-Mike C
i actually have 2 fittings going off the brake booster line. exactly like how you need it. the fitting that he uses is 6 sided, so how he did it for me was tapped into one side, skipped one, and then tapped another side. works great...
-Mike C
turbojimmy
New member
You're splittin' hairs, Jedi. The BOV opens when it senses a difference in pressure. I was over-simplifying for bandwidth's sake. Why is there a difference in pressure? Because you let off the gas. Why did you let off the gas? Because you don't need any more boost. Am I missing something?
Jim
ghostrider_85
New member
damn it, i just got the HKS SSBOV and the instructions are in jap, or something. anyone have any english instal instructions? thanks!
rkressg01@hotmail.com
rkressg01@hotmail.com