I am planning to swap a TBI intake onto my 400 sbc. I know I need to modify the center two holes. What I do not know is how to handle the EGR valve. The EGR port on the intake leads right into a spot on the early heads where there is nothing for it to get exhaust gas from. how do I hook up the EGR? The machine shop suggested drilling the intake and running a copper line to the exhaust headers...I'm not real keen on that. Can I run a line under the manifold? If I block off the EGR, will it causes a error code in the computer? Any help will be appreciated. I do not want to buy a new manifold or use a 4 barrell adapter plate.
I thought an EGR valve was to recirculate exhaust for emissions. Are you worried about staying emission compliant on your hot rod?
Let me elaborate a bit. Egr valve lowers combustion temps Dilutes the intake charge. That reduces emissions Tbi isn't the best and I think you'll get better mileage and power with a carb You're talking about quench, compression, maximizing on torque and a whole bunch of other stuff that the egr was designed to undo.
When I read about this swap, they write about the intake bolt hole elongation, wiring harness, fuel pump...etc. They do not talk about the EGR valve on the stock intake. The EGR has a plastic tube running from it, to a sensor. In the articles, it looks like the EGR is just removed from the manifold since it is not connected via any ports to the head. But then what about the tube? Do I just plug the hole on the sensor? Will this cause an error code?
In before the lock.. remove the EGR valve and make a plate to cover the mounting area. No idea why anyone would convert to TBI but that is your business.
The valve should pull from the exhaust cross over in the manifold. you running a air pump too? Codes, you'll need a new chip programed , you tell the chip what to do
I would recommend leaving out the eve valve. Then have sombody that computer tuning turn off the code.
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