Blow off Valve
#1
Jet powered
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Join Date: Jan 2011
Location: Kansas City
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Blow off Valve
About 2 months ago me and a few friends replaced the clutch in my 91 13b TurboII also changed out the spark plugs, plug wires , oil change and the air filter. When we got all that done and everything put back together it started up just fine at first we drove it around for a few minutes and noticed it would die if you came to a stop or held the clutch pedal in we looked it over didnt really notice anything. So it sat till the other day when we popped the hood and started it my friend noticed a tube had busted off from my air intake hose he held it back up to it and it would stay idle but kinda rough though so I started looking it up online it looks like it might be where a Blow off valve would go if so whats a decent blow off valve to go with and how hard would it be to install one?
#3
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Ok will do. Whats a decent blow off valve to go with? Ive read in a few places that the cheaper ones will whistle and arnt worth even wasting the time or the money on.
#4
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Personally, I wouldn't bother spending the money on an aftermarket BOV. Their main purpose is to make noise. I use an OEM bypass valve (ie BOV), and don't plan to ever change it. There are other people that don't even use a BOV, and have seen no negative effects on their turbo.
If you buy an aftermarket BOV, it would be best to recirculate the air before the turbo (like stock form). Vented BOVs will cause rich mixtures between shifts, which isn't necessarily horrible, but you'll get some backfires & catalytic converters may not last long.
If you buy an aftermarket BOV, it would be best to recirculate the air before the turbo (like stock form). Vented BOVs will cause rich mixtures between shifts, which isn't necessarily horrible, but you'll get some backfires & catalytic converters may not last long.