bov question

[paratender2003]

this is prob a random thing thats been talked about but i couldnt find it. where does the vac line from the bov go to? vac block or turbo nipple? thanks all,
b-nard

[tryingbe]

Neither.
Use the vaccum port on top of the throttle body.

[Jasmeleg08]

Use a vac line off the intake manifold. I found that the vac ports on my tb were clogged and didn't get any vac. That is what I run and it runs fine with my greddy.

[turbovanman²]

Yep, just find manifold vacuum and your golden.

[Dave]

I've always ran off the manifold. I tried a couple of BOVs and different cars off the TB and it never worked right.

[paratender2003]

well i hooked it up to the vac block i have and i get either 5lbs of boost and then a whoosh sound from the bov or i get overboost cut out and the engine shuts down. then after she runs perfect. untill i hit wide open throttle. i also have turned down the grainger valve a bit and still the same thing. any ideas?

[devlish]

on my DSM it's t'd off a manifold vac line, no issues... on my Omni it's on the throttle body, no issues. same 1G DSM BOV as well.

[MiniMopar]

If you look at the factory setups, they hooked it to the small TB nipple in 88, but then moved it to the manifold in 89.

[Dave]

well i hooked it up to the vac block i have and i get either 5lbs of boost and then a whoosh sound from the bov or i get overboost cut out and the engine shuts down. then after she runs perfect. untill i hit wide open throttle. i also have turned down the grainger valve a bit and still the same thing. any ideas?

Okay so you're saying after you start it up, warm it, jump on it, it will overboost? Then after if you nail it it will not overboost?

[paratender2003]

yup. will spike to about 15psi and then cut out and then fall back to about 5 psi and run fine. any ideas?

[turbovanman²]

yup. will spike to about 15psi and then cut out and then fall back to about 5 psi and run fine. any ideas?

What are you using for boost control? A bov won't fix that.

[paratender2003]

using a grainger valve.

[turbovanman²]

Did you take out the restrictor? Hook the wastegaste to manifold vacuum and see what happens.

[paratender2003]

ill try it and see what happens then.

[paratender2003]

put it on the manifold vac and still same thing. cleaned the g-valve out and still the same. no restrictor though. is that the prob?

[turbovanman²]

You hooked the wastegate to manifold vacuum with no restrictor or anything? if so, you have a wastegate can issue. Its got weak with age.

[paratender2003]

got one i can buy?

[turbovanman²]

got one i can buy?

Sorry, I don't,

[paratender2003]

talking about the can, are you supposed to be able to move it in and out by hand? mine wont go in and out when i pull or push it in.

[tryingbe]

I have a TII 87 small wastegate can you can have.