hks compessor surge?

[98MitzuGST]

just put on a hks bov venting to atmosphere on and it doesn't sound like its opening up, like even at very small boost i can hear what sounds like compressor surge, is there any fix or way to know if it is compressor surge or is that just the way the hks sounds? its like a very loud flutter noise and i don't know if i should be worried or not.

 

[thejollyrancher]

Sounds like surge. Make sure your vacuum line from the BOV is routed to the intake manifold properly. Im not sure how these HKS BOVs are but you might have the wrong spring in it. How much vacuum are you pulling at idle?

 

[98MitzuGST]

i don't think you can change the spring in them and i pull like almost 20 pounds at idle

 

[ThunderChild]

i think you mean 20 in/hg, but once again, just make sure you have your bov routed to the manifold properly.

 

[98MitzuGST]

alright ill recheck everything again today

 

[Chumpaumpalumpa]

Adjust the screw out (left) to "loosen" the spring. Do this in 1/4 turns until it goes away then 1/8 turn back in (right) You should be solid. You also want to know max vacuum by decelerating from high RPM in low gear (I like 2nd). You'll probably see somewhere near 25 Inch of Mercury (in/Hg).

 

[98MitzuGST]

i didnt see any adjustment screw on it

 

[ThunderChild]

picture of said valve? there should be an adjustment screw on the top of it (above where the diaghram would be).

 

[98MitzuGST]

generic photos but thats what it is no adjustment screw or anything on it

 

[ThunderChild]

ah, wasnt aware it was the ssqv. there isnt adjustment on that aside from changing out the springs.

 

[98MitzuGST]

thats what i was trying to avoid, but i might just have too

 

[Chumpaumpalumpa]

thats what i was trying to avoid, but i might just have too

It's not hard just be careful undoing that last bit, it will try to punch you in the face!!