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Aftermarket BOV Installation

 
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  #1 (permalink)  
Old 15 Apr 2003, 11:15 am
Young Cruiser
 
Join Date: Apr 2003
Location: Rochester, NY, USA.
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Default Aftermarket BOV Installation

I was talking to Exhaust Depot, and I ended up puchasing the HKS BOV kit that he makes for the SRT-4 for my GT. He says you can run both BOV's at the same time with no problems, this is what he does on his SRT-4. Or he also said that you can always just block the vacumn line that goes to the factory BOV. And the HKS BOV is super loud!!! :-)

He takes a 2.5" pipe and welds the flange and the BOV to it, then you just gotta put it inline with your 2.5" rubber hose that goes from the turbo to the intercooler by cutting about 2" from the hose and clamping it on. (see pic below) And then run a vacumn line to it.

From a suggestion from Ian, I'm wondering if it would be better to put the BOV on the 2.5" hose that goes from the intercooler to the throttle body. (see pic below on where) , need a little help from Exhaust Depot on this one :-)

Does anyone know if those plastic rings that couple the 2.5" hose together come off?

If they dont, I think it would be much cheaper and easier to replace the 2.5" hose after the intercooler than the one before it, because the one before it, is metal tubing most of the way. I say this because If I have to take the car in for Warranty work, I would like an easy way of returning it back to stock.

Matt



OR




2003 GT Cruiser
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Old 15 Apr 2003, 09:56 pm
Cool Cruiser
 
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YOu truly are a photoshop master!

That pic of my bov is how i had it initialy. It sits alot higher now and on teh PT it sits a whole lot higher.

The ideal place to install the BOV is on the hot side of the intercooler. If you notice, all manufactures place the stock BOV on the hot side.


You can see a better pic of it here:
http://www.exhaustdepot.com/srt4/srtbov1.jpg

With the BOV you notice a signifant difference in turbo recovery after you shift. If your running only the stock boost level then you will not really notice a difference besides the venting of the BOV> But if you do decide to raise the boost then I do suggest you get a BOV that can supply the added volume.

Happy boosting.




3" Turbo Back Prototype, Greddy EGT, HKS SSBOV, GReddy-e01 Boost controller, Blitz Turbo Timer.
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Old 16 Apr 2003, 10:45 pm
Young Cruiser
 
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Location: Rochester, NY, USA.
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Does anyone have any input on those Black Rings that couple the 2.5" Intercooler hose's together, Cant figure out how they come off or even if they can be taken off...

Thanks,

Matt

2003 GT Cruiser
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Old 17 Apr 2003, 05:35 pm
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If you look at the hose running from the air filter box to the turbo you can see the rings are all one piece. It looks to me like they are molded into the rubber hoses. Just my .02...<img src=icon_smile_sad.gif border=0 align=middle> Keep us posted!

Kevin & Donna's Elec Blue GT

http://www.dreamcruisers.org/index/Page_1x.html
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Old 17 Apr 2003, 06:51 pm
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Location: Toronto.
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that install looks pretty damn weird....i don't think i've ever seen a BOV installed UNDER the car. All the cars i've seen like the VW 1.8t are installed on the upper side of the engine bay. There must be a more convenient place to mount it, cuz other wise if you live any where with snow your pretty much screwed b/c it is so exposed. The turbine is at the back of the engine bay, like the VW, but i haven't looked for the stock DV yet. My last install totally replaced the stock dv but it was not an HKS SSQ....hmm...now i'm confused people.

RIP-'01 PT Bruiser- to many mods to list
*NEW*-'03 GT Cruiser
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Old 23 Apr 2003, 03:25 pm
Cool Cruiser
 
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Location: LI, NY.
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You need to run a vacuum line to the BOV?? Where can you tap into for that one?
Chipmunk would love to see pics (maybe a sound clip, perhaps??) and comments when you are done...also would like to install the HKS BOV!!

Rob

Click to see my GT!!
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Old 25 Apr 2003, 02:53 am
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Location: Oregon.
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What exactly does an aftermarket BOV do and how easy is it to install. Will it void my warranty? What's the best and how much is it?

'03 Onyx Green GT 5-Speed

'01 Bright Silver Metallic Automatic

Edited by - mean green on 04/25/2003 01:57:35
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Old 26 Apr 2003, 02:59 am
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Anybody?

'03 Onyx Green GT 5-Speed

'01 Bright Silver Metallic Automatic
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Old 26 Apr 2003, 04:28 pm
Cool Cruiser
 
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Your turbo can spool up to 100K RPM when at high boost. When you let off the gas the turbo feels like it hits a brick wall. There is no where for the air to go but back into the turbo. This slows it down and also applies a twisting affect. The surging air tries to back spin thecompressor while the exhaust is spinning the turbine in the correct direction. This causes a twisting affect on the turbo shaft which causes it to fail after some time.

Also, when you get back on the gas, the turbo has to come back up to speed being that the surge slowed it down.

Now a BOV goes inline between the turbo and the throttle. WHen the throttle closes, the BOV opens venting the air to the atmosphere. So as you can see the turbo is happy because the pressure is relieved.

The stoc setup on the car comes with a surge valve. Instead of ventin tit, it recirculated it back into the intake. The stock surge vvalve is not able to accomidate for the extra volume of boost. So if you install a manual boost controller or an electonic one, you will need a BOV so the turbo stays happy.


When I cranked up the boost on my srt-4, i noticed how quick the boost would come back online after a shift due to the larger BOV i installed. There was no longer that small pause fo rthe turbo to get back up to speed.

__________________

E.D. 3\" Turbo Back, , HKS SSBOV, GReddy-e01 Boost controller, Greddy E-manage fuel management, Blitz Turbo Timer, JE pistons, Ported Head, E.D. Large Frontmount Intercooler, E.D. Tubular manifold with t3/t4 (prototype), IPP coilovers, Limited Slip.
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Old 27 Apr 2003, 01:41 am
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Thanks Hector! I'll get a hold of you when I'm ready.
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\'05 Stone White SRT4

\'04 Graphite PT Automatic
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