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Old 04-22-2013, 11:40 AM   #1
Cory51191
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Default Hks Ssqv

Just put it in 2 days ago. It's the black edition.
Stock turbo.
Also just installed a 3" downpipe the day prior.

I'm under the impression that its real because it passed all checks on the hks website and other checks people have posted on the Internet.

When I hit full throttle the turbo hits 15psi then it goes down to 10 and then bounces around 12-14psi

I guess what I'm looking to find out is...
If my blow off valve is opening under boost would I hear it fluttering or dumping?
It's not making any noise when this happens.
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Old 04-22-2013, 11:43 AM   #2
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Originally Posted by Cory51191 View Post
Just put it in 2 days ago. It's the black edition.
Stock turbo.
Also just installed a 3" downpipe the day prior.

I'm under the impression that its real because it passed all checks on the hks website and other checks people have posted on the Internet.

When I hit full throttle the turbo hits 15psi then it goes down to 10 and then bounces around 12-14psi

I guess what I'm looking to find out is...
If my blow off valve is opening under boost would I hear it fluttering or dumping?
It's not making any noise when this happens.
Has the car been tuned?
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Old 04-22-2013, 11:59 AM   #3
paulpat
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go back to stock. open bpv is the best. I had the HKS one... its good for only bigger than stock turbos and tunes that do not run a MAF! e.g. SD tune.

you will enjoy the throttle response and still hold rpm's while shifting.
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Old 04-22-2013, 01:08 PM   #4
Cory51191
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Has the car been tuned?
No. Won't be until the end of the summer. I also just installed an AEM digital wideband and the reading seem to be fine (I'm not a tuner but I have done some research)
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Old 04-22-2013, 01:10 PM   #5
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Originally Posted by paulpat View Post
go back to stock. open bpv is the best. I had the HKS one... its good for only bigger than stock turbos and tunes that do not run a MAF! e.g. SD tune.

you will enjoy the throttle response and still hold rpm's while shifting.
I will be putting a bigger than stock turbo in and getting it tuned by the middle of fall.. Supporting mods are already there.
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Old 04-22-2013, 01:41 PM   #6
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No. Won't be until the end of the summer. I also just installed an AEM digital wideband and the reading seem to be fine (I'm not a tuner but I have done some research)
There's your problem right there. Downpipe + no tune = not good(as in potential catastrophic failure) on turbo subarus. I can't see your profile on the mobile but it's less terribad on the 02-03's, but still not a great idea.

In the mean time, go back over all your connections and hoses to make sure everything is hooked up right, tight, not cracked, and not leaking.

Then stop doing WOT pulls untuned.

What it really sounds like is your boost control system is having a hard time regulating boost with your new, freer flowing downpipe. It sees higher than stock levels of boost, opens the wastegate the amount it's programmed to for before, but now instead of holding at ~14.7, it's redirecting too much exhaust gas and you're seeing ~10.

Is your new downpipe a bellmouth?
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Old 04-22-2013, 02:09 PM   #7
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what does supporting modds already there mean? like already installed, as in you have a fuel pump, injectors, etc. installed?

the hks bov is crap. put the stock one back on.

Since you didn't fill out your profile, i will assume you have an 04+ wrx, in which case you need a tune for a downpipe.

the mix of those two things is your problem.
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Old 04-22-2013, 02:36 PM   #8
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Yeah I need to fill out my profile. It's an 02 WRX.

Silicone charge pipe, AEM dry flow filter, 'tsudo axle back, 'tsudo 3" bellmouth downpipe (catless), Perrin fuel rails and FPR, STi pinks, AEM wideband and HKS ssqv... It's VTA right now (I know I know... I need to get a new id hose. I have the recirc fitting already).

AEM TruBoost controller (not hooked up).
Its a long downpipe so it eliminates the front mid pipe.

I also haven't done an ECU reset since the installs. I don't notice the major fluctuation in boost until the SSQV was installed.

Last edited by Cory51191; 04-22-2013 at 02:42 PM.
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Old 04-22-2013, 02:39 PM   #9
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I did WOT pulls to see the readings on my newly installed wideband. I was curious.

The only mods I've done to the car since I bought it was the dry-flow filter (had a cheap eBay one on it), the downpipe, the wideband and the SSQV. (And the TruBoost but like I said its not installed).

Everything else was already on it.

Last edited by Cory51191; 04-22-2013 at 02:49 PM.
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Old 04-22-2013, 03:16 PM   #10
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Sooooo, it already has a tune on it for the injectors and such?

If you didn't notice it until you installed a part (HKS) wouldn't you say it's fair to assume it's that part that's giving you issues?
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Old 04-22-2013, 03:18 PM   #11
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Originally Posted by Cory51191 View Post
Yeah I need to fill out my profile. It's an 02 WRX.

Silicone charge pipe, AEM dry flow filter, 'tsudo axle back, 'tsudo 3" bellmouth downpipe (catless), Perrin fuel rails and FPR, STi pinks, AEM wideband and HKS ssqv... It's VTA right now (I know I know... I need to get a new id hose. I have the recirc fitting already).

AEM TruBoost controller (not hooked up).
Its a long downpipe so it eliminates the front mid pipe.

I also haven't done an ECU reset since the installs. I don't notice the major fluctuation in boost until the SSQV was installed.
All of this and no tune is a very bad idea.

You need to have your car tuned right now. Seriously. Your ecu has no idea how to handle those injectors.


Edit: I just saw you had this in before. So there's at least some form of a tune on there.
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Old 04-22-2013, 03:27 PM   #12
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Originally Posted by Psychoreo View Post

All of this and no tune is a very bad idea.

You need to have your car tuned right now. Seriously. Your ecu has no idea how to handle those injectors.

Edit: I just saw you had this in before. So there's at least some form of a tune on there.
My EVAP lines are also really messed up. No idea who put them like that put I'm going to fix it today by setting the EVAP system up the way they come from the factory in Japan..
If that changes anything ill put it back the way it was for now. I stated another thread about it a few days ago.
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Old 04-22-2013, 07:42 PM   #13
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Ssqv cause a lot of compression surge. I'd go back to stock or get a synapse bov
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Old 04-22-2013, 10:18 PM   #14
Cory51191
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Ssqv cause a lot of compression surge. I'd go back to stock or get a synapse bov
That sucks considering the price of them :/



So I switched around my EVAP system and after a couple revs to see how it held, the top nipple on the purge control selnoid valve broke off -_-
I just deleted it for now. Kinda pissed off though.
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Old 04-22-2013, 10:37 PM   #15
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Ssqv cause a lot of compression surge. I'd go back to stock or get a synapse bov
That's not entirely correct...
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Old 04-23-2013, 09:21 AM   #16
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That's not entirely correct...
This thread is full of so much garbage, just let this one go man. let it go.
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Old 04-23-2013, 09:35 AM   #17
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This thread is full of so much garbage, just let this one go man. let it go.
But it makes my head hurt......
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Old 04-23-2013, 05:02 PM   #18
Cory51191
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Sooooo, it already has a tune on it for the injectors and such?

If you didn't notice it until you installed a part (HKS) wouldn't you say it's fair to assume it's that part that's giving you issues?
That sounds about right I'm just trying to figure out why. I wasn't eyeballing my boost gauge until the day after the downpipe was in (when I installed my SSQV. After reading and such I'm going to assume its because the new downpipe/EBCS not being able to handle it. Time to upgrade that midpipe and get a Cobb AP and a tune.

Edit: grammar.
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Old 04-23-2013, 05:09 PM   #19
Psychoreo
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Originally Posted by Cory51191 View Post

That sounds about right I'm just trying to figure out why. I wasn't eyeballing my boost gauge until the day after the downpipe was in (when I installed my SSQV. After reading and such I'm going to assume its because the new downpipe/EBCS not being able to handle it. Time to upgrade that midpipe and get a Cobb AP and a tune.

Edit: grammar.
You should get the AP and tune now vs waiting for the midpipe. The midpipe doesn't effect the tuning nearly as much as the downpipe.
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Old 04-23-2013, 05:13 PM   #20
Cory51191
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Originally Posted by Psychoreo View Post

You should get the AP and tune now vs waiting for the midpipe. The midpipe doesn't effect the tuning nearly as much as the downpipe.
I'm just going to stop driving spiritedly until I have extra money after annual training then I can get the AP and a pro-tune
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Old 04-24-2013, 12:18 AM   #21
paulpat
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Have u looked into a tacteix cable? I believe it is 100 and the software is free
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Old 04-24-2013, 03:15 AM   #22
Cory51191
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Have u looked into a tacteix cable? I believe it is 100 and the software is free
I did a while back before I even owned a car. I should do the research but from what I can brainstorm I'm pretty sure an AP will be more convenient for my needs. Will research tomorrow though.
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Old 04-24-2013, 10:42 AM   #23
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I cant believe HKS still makes those piles of garbage, they are completely worthless. You got fleeced.
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Old 04-24-2013, 11:01 AM   #24
Cory51191
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I cant believe HKS still makes those piles of garbage, they are completely worthless. You got fleeced.
HKS is such a reputable and high grade company too.. Seems like no one likes the blow off valve :/
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Old 04-24-2013, 11:59 AM   #25
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