air injection question
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From: Charm City
air injection question
I removed the exhaust system from the '92 F250 because it was built for the 5.8, I am hoping to reuse it when I do the engine swap in my '90 F250. My question is, the 5.8 had 2 air injection lines that went to a 'custom' 2 cat setup..
Yeah, some genius plumbed the side by side down pipes into separate side by side cats, then a 'Y' into the muffler and into a single tailpipe. (The PO tried to tell me it was a custom Banks exhaust system, I just laughed to myself and thought about how badly the idiot was ripped off, the whole exhaust system was pretty much a hack job but I don't have the $$ to purchase the correct parts, so I'm just gonna make the best of it for now.)
So anyway, did the stock exhaust actually use 2 air injection lines going to the OE cat or do I need to block off/remove one of the valves on the engine and just use one injection line? I plan on using the twin down pipes from the parts truck, connect them into a 'Y' pipe and tap into the single cat system that's on my F250 right now.
Yeah, some genius plumbed the side by side down pipes into separate side by side cats, then a 'Y' into the muffler and into a single tailpipe. (The PO tried to tell me it was a custom Banks exhaust system, I just laughed to myself and thought about how badly the idiot was ripped off, the whole exhaust system was pretty much a hack job but I don't have the $$ to purchase the correct parts, so I'm just gonna make the best of it for now.)So anyway, did the stock exhaust actually use 2 air injection lines going to the OE cat or do I need to block off/remove one of the valves on the engine and just use one injection line? I plan on using the twin down pipes from the parts truck, connect them into a 'Y' pipe and tap into the single cat system that's on my F250 right now.
