searched...found no answer
LouieAWDTSi
11-30-2004, 04:21 PM
my 92 talon idle drops up and down when i took the BOV dump hose off the BOV...it does it only when im in park or netrual...if i rev it...it almost wants to stall and this morning it kept stalling so i had to put the tube back on and goto school...i searched trying to find out if i should take the hose off the entire turbo and bov? or is there somethin else i need to do first before removing it? im only running stock boost and its an auto...here's all i found which was no help...
:::::BlowOff Valve bypass
What is it?
Modifying the compressor bypass valve (CBV/BOV) is only necessary for those with 95+ cars. The CBV/BOV is supposed to blow open when you slam the throttle plate shut, creating a loop of compressed air running through the turbo and i/c. This loop keeps the turbo spooled up, and prevents the back pressure from slamming into the turbo, stressing and slowing it. The problem is that the CBV on 95+ cars leaks at high boost. Pre-95 vehicles have a CBV which has a stronger spring and won't leak (much) until it is supposed to blow off. One option available to all model years is to remove the loop effect, and just have the CBV blow off into the atmosphere. This option in my opinion is not a good idea if you are driving the car on the street. If the pressure is just blown off, that is wasted energy which could be used to keep the turbo spooled up. Drag racers run it sometimes because an open dump can release more pressure than the stock closed loop setup.
Credited to; [email protected] (APalmer)::::
can someone either send me a direct page that will help or tell me whats wrong??
thanks
:::::BlowOff Valve bypass
What is it?
Modifying the compressor bypass valve (CBV/BOV) is only necessary for those with 95+ cars. The CBV/BOV is supposed to blow open when you slam the throttle plate shut, creating a loop of compressed air running through the turbo and i/c. This loop keeps the turbo spooled up, and prevents the back pressure from slamming into the turbo, stressing and slowing it. The problem is that the CBV on 95+ cars leaks at high boost. Pre-95 vehicles have a CBV which has a stronger spring and won't leak (much) until it is supposed to blow off. One option available to all model years is to remove the loop effect, and just have the CBV blow off into the atmosphere. This option in my opinion is not a good idea if you are driving the car on the street. If the pressure is just blown off, that is wasted energy which could be used to keep the turbo spooled up. Drag racers run it sometimes because an open dump can release more pressure than the stock closed loop setup.
Credited to; [email protected] (APalmer)::::
can someone either send me a direct page that will help or tell me whats wrong??
thanks
LouieAWDTSi
11-30-2004, 04:39 PM
i found this..will this be good for a 1st gen too???????http://www.plymouthlaser.com/bdump.htm
kjewer1
11-30-2004, 05:20 PM
They call it the 2g dump tube mod because only 2gs have the dump tube :) You definitely want to keep your BOV recirculated. There are ways to vent it but its a huge pain in the ass and there is no real performance advantage. Get a hard intake pipe and big ass filter and the stock 1g BOV will be pretty loud even recirculated. ;)
LouieAWDTSi
11-30-2004, 11:39 PM
ok thank you..damn 1st gens..ill be gettin pry a dejon intake soon and throw a big filter on..hope i can hear it...i love the sound/...if not oh well..more of a sleeper if u caNT Hear since my turbo stickers are all off....thanks for the help..ill put the tube back on tomorrow
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