HKS BOV n00b question

Reply Subscribe

Thread Tools

Search this Thread

Mar 20, 2004 | 03:54 AM

gpatmac

Thread Starter

VIP Member

iTrader: (3)

Joined: Nov 2002

Posts: 10,133

From: Lastweek Lane - Watertown, NY

Car Info: 02WRXpseudoSTiWannabeWagon

HKS BOV n00b question

I now regret not fabricating the stock BOV to the FMIC that I have.

I'm aiming for 25psi, but the intermediate goal is anything above 20. 257 block w/ WRX heads, FP Green, Greddy FM, UTEC boost control w/ abc.

After I get to a certain rpm, the boost just leaks out and my suspicion is that the BOV is either maladjusted or malfunctioning. I am going to play with it tomorrow and see if I can't correct the problem by adjusting the screw, although the original reason I adjusted it in the first place was to get rid of the compressor surge or stall (that crazy fluttering sound).

I'm not seeing anything above 17 psi; tonight at the dragstrip all I was seeing was a peak of 14 psi through 5th gear.

That's all the detail I know for now. I'm pretty novice when it comes to the BOV. I've always been pretty happy with the stock one, only changed because I felt it was the easiest route.

Does this sound like I've identified my problem? No matter how much I raise my boost in my UTEC map, I see no rise in boost. It's like it's all leaking off.

Thanks

Mar 26, 2004 | 03:59 AM

outferno

Guest

Posts: n/a

The only thing i can see if it's leaking off is that your BOV may need to adjust it tighter. I'm still playing around with my WORX BOV, so I'm a noobie too. Maybe someone can shed some light on this

Signed,
Charlie

Mar 27, 2004 | 07:23 AM

blueballs

Guest

Posts: n/a

I'm not expert but based on my experience, it definately sounds like a leak or you need to raise the tension of the spring. I'd 1st retighten both bolts and make sure that is not the problem. Maybe throw soapy water on the junction and rev it up and have someone watch for bubbles. If it's not that then you need a tighter spring. I'm not familiar with the HKS but on my Worx tuning one you can adjust spring tension by placing the spring on a perch with a different height.