BOV?

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Postby theUNYTEDone » Thu Feb 23, 2006 1:52 am

i thought it might be something along those lines. i also figured my custom 2 piece downpipe (aka cracked) might be the culprit...but anyway, this backfire thing...it's not bad, is it?
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Postby wizzards581 » Thu Feb 23, 2006 2:27 am

wheres the stock BOV on the st185?
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Postby SuperWhite92 » Thu Feb 23, 2006 3:13 am

wizzards581 wrote:wheres the stock BOV on the st185?


There is no stock BOV.
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Postby db » Thu Feb 23, 2006 4:04 pm

theUNYTEDone wrote:i thought it might be something along those lines. i also figured my custom 2 piece downpipe (aka cracked) might be the culprit...but anyway, this backfire thing...it's not bad, is it?


Not really. It might build up some carbon on the bumper around the muffler but that's about it. Mostly its just an irritating. It backfired with and without a cat for me.

Unfortunately, the average person is going to think that my car is running poorly when they hear it backfiring and spewing a little fuel-enriched smoke combined with my BOV. :shrug:
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Postby Guest » Thu Feb 23, 2006 8:27 pm

db wrote:
theUNYTEDone wrote:i thought it might be something along those lines. i also figured my custom 2 piece downpipe (aka cracked) might be the culprit...but anyway, this backfire thing...it's not bad, is it?


Not really. It might build up some carbon on the bumper around the muffler but that's about it. Mostly its just an irritating. It backfired with and without a cat for me.

Unfortunately, the average person is going to think that my car is running poorly when they hear it backfiring and spewing a little fuel-enriched smoke combined with my BOV. :shrug:


:lol: right on, well my car has been backfiring since i bought it...not too often though....no carbon deposits, so i think im safe...yay! :D
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Postby wizzards581 » Fri Feb 24, 2006 1:58 am

SuperWhite92 wrote:
wizzards581 wrote:wheres the stock BOV on the st185?


There is no stock BOV.


i thought i was missing something. i use to have 91 mr2 turbo and it had a stock BOV. i was looking all over and an alltrac seems to be missing one. couldnt this be bad for the turbo? or where does the air thats being built go after the the throttle closes?
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-03 matrix XR
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Postby d1alltrac » Fri Feb 24, 2006 2:18 am

wizzards581 wrote:
SuperWhite92 wrote:
wizzards581 wrote:wheres the stock BOV on the st185?


There is no stock BOV.


i thought i was missing something. i use to have 91 mr2 turbo and it had a stock BOV. i was looking all over and an alltrac seems to be missing one. couldnt this be bad for the turbo? or where does the air thats being built go after the the throttle closes?


it COULD be bad for the turbo, but at stock boost levels there really isnt anything to worry about.
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Postby wizzards581 » Sat Feb 25, 2006 3:58 pm

then i wonder why the mr2 had it and the celica doesnt. its the same motor.
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Postby jlspec » Sun Feb 26, 2006 8:46 am

The MR2 Turbo had more intercooler length for a BOV as compare to our top mont intercooler.
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Postby capncelica » Mon Feb 27, 2006 3:14 pm

sorry to interrupt but whats the advantage of releasing the pressure to the atmosphere instead of back to the intercooler???? is there a BOV that doesn't cause a rich mix between shifts when released to the atmosphere???

thanx
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Postby db » Mon Feb 27, 2006 3:50 pm

capncelica wrote:sorry to interrupt but whats the advantage of releasing the pressure to the atmosphere instead of back to the intercooler???? is there a BOV that doesn't cause a rich mix between shifts when released to the atmosphere???

thanx


Rerouting the vented air back into the intake tract is always the best option for performance and function. And with an AFM there is no way to vent to the atmosphere without running rich. Well, some piggy back devices claim to help reduce affects, but I haven't tested them.

The only advantages to venting to the atmosphere realistically are:
1. Sound
2. Less complicated installation
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