Quote:
Originally Posted by vwnate1
Rich ;
I know little about these and was looking at one recently ~ are they better or just different ? .
I assume you mean to typ : non-ARB ? .
-Nate
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Nate,
It's ARV- Air Recirculation Valve.
Another user Gregs300CD describe it, "The ARV lets pressure from the intake manifold escape back to the inlet (decreasing IM pressure), allowing the EGR to pass more exhaust gas into the intake manifold."
The ARV (
afaik) is on California models as an additional emissions system. I know it's on the 85' model and it might be on the others.
I'm on a quest to simplify my Merc and de-california it where possible so I'm going with the standard non-ARV cold side turbo. It's "better" to me because it's simpler and this late in the game probably isn't doing much in the way of emissions, also, I removed the EGR entirely...