SR] Sounds weird... Is my vacuum diagram acceptable?

[reccakun08]

So yesturday i went ahead and used my boost leak tester that i made years ago. I was able to track down a vacuum leak from the bov nipple. The vacuum line was an extended line using those plastic hose connectors.(they suck ***) Upon trying to fix the leak my friend broke the blitz bov elbow. (its the piece that connects to the bov to a vacuum line) therefore i am using his brand new hotpipe w/ forge bov. We hooked it up and kinda ghetto rigged it.

Here is the diagram of the old setup:

(the connector where the lower tb vacuum port to the bov connected was leaking)

New setup



Ok so with the new setup the car pulls harder than before but now my car has a wrx sound and a weird lag. The sound is only apparent in vacuum but only from 736mmHg to ~250mmHg. However going from 0 to 250mmHg does not. The lag is right after the next gear engaged but if i shift a bit faster with a bit more gas its normal.

Any ideas? I think i might have a slight exhaust leak at the cat. Possibly the crappy *** turboXS manual boost controller?

[reccakun08]

After driving today it seems like a misfire/bogging during crusing vacuum pressure but as soon as u give it some throttle or full throttle it goes away.... Any ideas on what could cause this? its weird cause this only happened after fixing the leak and with a different vacuum routing along with a different hotpipe/bov? (exhaust leak? another boost leak? coilpacks? sparkplugs?) Also my idle is slightly higher than before(~6-700rpm to ~800-900rpm)

[exhsturbine]

the old setup looks correct to me. thats the way i do it and i have no problems

an exhaust leak at the cat wouldnt cause a decrease in power, just a noise. r if i did make a decrease in power, it wouldnt be noticeable. what are your exact problems and concerns?

[reccakun08]

the old setup looks correct to me. thats the way i do it and i have no problems

an exhaust leak at the cat wouldnt cause a decrease in power, just a noise. r if i did make a decrease in power, it wouldnt be noticeable. what are your exact problems and concerns?

well like i said during crusing speeds in vacuum it feels like a misfire/boggin but as soon as you give it throttle its fine. Since the old diagram was with a nipple on the hotpipe and the new hotpipe/bov setup does not have a nipple i T'd off the bov hose with the mbc. The only thing i changed today was the capped off part is switched with the throttlebody port. and i capped the throttlebody part. The bov is more responsive now but didnt really solve anything.