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Intake Silencer & hood gasget off, Got a ? for ya.

 
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  #1 (permalink)  
Old 08 Apr 2003, 07:15 pm
Young Cruiser
 
Join Date: Apr 2003
Location: Rochester, NY, USA.
Posts: 80
Default Intake Silencer & hood gasget off, Got a ? for ya.

Is it just me?, or with the intake silencers off and the rear hood gasget partially removed, the BOV (Blow Off Valve) seems much louder now... Although still doesnt sound like it should...

Matt

2003 GT Cruiser
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Old 09 Apr 2003, 10:40 am
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Join Date: Jan 2003
Location: San Juan, Puerto Rico, USA.
Posts: 566
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Yep, when you remove the silencers off you will hear the BOV operating when you let go of the gas. You wont hear it like the aftermarkets because it is a recirculating one, the BOV exaust is conected to the intake tube. The tube makes an echo and the air box increases the sound.

It is normal.

If you install the silencer back the noise will disapear.

Ian

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Old 10 Apr 2003, 04:06 pm
Young Cruiser
 
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Location: Sierra Vista, AZ, USA.
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Yeah, when we first got our gt, I couldnt hear the turbo or bov at all. So I took off all 3 resonators and it sounds much better now. Not as good as my talon sounds though, you can really hear the turbo scream in that thing. Whats the point of a turbo if you/others cant hear it?<img src=icon_smile_big.gif border=0 align=middle>

90 Eagle Talon Tsi AWD - 300 Hp
03 PT Cruiser GT - 215 Hp
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Old 10 Apr 2003, 06:36 pm
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Location: Toronto, Canada.
Posts: 26
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Quote:
quote:
Yeah, when we first got our gt, I couldnt hear the turbo or bov at all. So I took off all 3 resonators and it sounds much better now. Not as good as my talon sounds though, you can really hear the turbo scream in that thing. Whats the point of a turbo if you/others cant hear it?<img src=icon_smile_big.gif border=0 align=middle>

90 Eagle Talon Tsi AWD - 300 Hp
03 PT Cruiser GT - 215 Hp
3 resonators? How did you get the third one out? I assume you speak of the one in the airbox to turbo piping?

Louis

03 Black PT Turbo
02 Red Aztek GT AWD
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Old 11 Apr 2003, 01:46 pm
Young Cruiser
 
Join Date: Mar 2003
Location: Sierra Vista, AZ, USA.
Posts: 71
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Yes, it is in the airbox to turbo pipe. This is actually a 2 piece pipe. The bottom half or turbo side has the resonator built in. The top half or airbox side comes over the resonator and joins the pipe.
If i had a camera, I would take some pics, but here is a crude diagram:

_____..........&lt;top pipe
_____|:::::::| &lt;resontor
^ .....................
^bottom pipe

Anyway, I separated the 2 pieces, then cut the resonator off of the bottom pipe. I had a little trouble joining the two halves back together, so I just used a little JB Weld, that stuff is great. All in all, it took me about half an hour. I wonder if anybody else has tried this? Most people just look at me like Im just a crazy kid taking a hacksaw to a brand new car, but hey, it was in the way so I got rid of it. I hope somebody else had done this already, if not I'm going to claim I am the first to perform it on a GT. If anybody needs help with this send me an email, I will help you out.

Mike

90 Eagle Talon Tsi AWD - 300 Hp
03 PT Cruiser GT - 215 Hp

Edited by - dsm_mike on 04/12/2003 00:28:21
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Old 11 Apr 2003, 02:56 pm
Senior Cruiser
 
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Location: Huntington Beach, CA, USA.
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Hey DSM, Ian-pt-gt was talking about this last week and I looked in mine over the weekend and saw it in there. I couldn't figure out how to separate the 2 pieces. I was thinking of buying a spare so I could work on it or just cut the two end rubbger pieces off and replace the center section with some tubing.

Anyway, how did you separate the two pieces? did you have to cut them apart?

Inferno Red GT, chrome wheels, chrome AMP fuel door, chrome side spears, PT Cruiser 3rd light diffuser, silencers removed from airbox...ain't this car fun?!?!?
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Old 11 Apr 2003, 04:39 pm
Young Cruiser
 
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Location: Sierra Vista, AZ, USA.
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I tried a bunch of things, but what worked the best for me was a putty knife at first to separate the two, then a thin flat head screwdriver. You have to work all the way around it. Actually, I think that is the hardest part of this mod. Basically anything you have laying around that is thin and flat will work. Good luck.
Mike

90 Eagle Talon Tsi AWD - 300 Hp
03 PT Cruiser GT - 215 Hp
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Old 11 Apr 2003, 05:43 pm
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Location: Toronto, Canada.
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Quote:
quote:
I tried a bunch of things, but what worked the best for me was a putty knife at first to separate the two, then a thin flat head screwdriver. You have to work all the way around it. Actually, I think that is the hardest part of this mod. Basically anything you have laying around that is thin and flat will work. Good luck.
Mike

90 Eagle Talon Tsi AWD - 300 Hp
03 PT Cruiser GT - 215 Hp
After removing it is there improvement enough to justify the effort?

Louis

03 Black PT Turbo
02 Red Aztek GT AWD
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Old 12 Apr 2003, 01:04 am
Young Cruiser
 
Join Date: Mar 2003
Location: Sierra Vista, AZ, USA.
Posts: 71
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Well, I dont have any hard numbers, but the butt dyno says yes. However, this is not something I would reccommend to those who have not modded before and are afraid of messing something up. I would say do all the other easy things first and gain some confidence, seeing as this mod is not easily reversable. If you arent afraid of modding, have at it, it is definitly worth the 30-45 min. Take a close look at it once you have it out, you will see just how restrictive it is.
Mike

Edited by - dsm_mike on 04/12/2003 00:12:31
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Old 12 Apr 2003, 05:35 am
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Location: San Juan, Puerto Rico, USA.
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My idea is instead of cuting the factory one, is to fabricate one from scratch and save that one for service visits.

It is not hard to build one. My situation in this mod is finding a metal tube 2.75" wide that I can take to be chromed. I don't want to have a white PVC tube sticking out.

This is so far what I have been able to find in my research:

If you go to a Turbo parts store; HKS, Turbonetics and other manufacturers make metal tubes connectors and bends to create this item. all you have to do is tap the fitting for the Factory BOV.

What has held me in this mod is cost... I am looking for cheap mods to post. name brand parts are expensive, for example:

One HKS 45 degree elbow = $25.00

at this rate, this would cost over a hundred dollars for this tube replacement.

But, if you get the parts from other places (a muffler shop that can do mandrel bends) this could be another cheap mod.

parts needed for this conversion:

One 2.25" to 2.75" 90 degree elbow. this will be the one conecting to the turbo inlet and where you would need to tap for the fitting.

Four to eight inches of 2.75" straight tube to replace the silencer. you will need to first create or get the elbows to measure the needed length.

one 2.75" 45 degree elbow to connect to the air box.

one 2.25" silicone or hard rubber conector.

three 2.75 rubber or silicone connectors.

four tie down clamps, screw in type, for joining in together the parts.

The fitting to connect the BOV, I am sure that it can be found at Home Depo.

this numbers may not be exact but will get you in the ballpark and it will make one incredibly low restriction system in conjunction to the other mods on the airbox.

Any fabricator on line to tackle this chalenge?

Ian

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