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Originally Posted by TheGr8Doughboy
Lets talk about a 60. The cat is gone and I want to pull the smog stuff out of the engine. Never going to sell it, no smog test here etc, etc. Can someone be more specific on what needs to be pulled and so on?
Chris
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There's a diagram in the Tech Section here that shows a de-smogged system.
In short =>
Remove:
Cat
EGR valve, cooler and associated vacuum valves and hoses
Air injection (you can remove the vanes inside the pump to allow it to act as an idler; use 1/4 NPT caps on the injector ports)
Keep:
Emissions computer
High Altitude Compensator
Vapor collector system
Cold operation valve on the air cleaner
The key is to know what you are removing. I've seen people just start pulling things off and ended up removing non-smog equipment (such as A/C high idle controller).
HTH