When building a motor and you are trying to run a car with no computer do you have to have a EGR? What exactly is a EGR?
EGR? Don't know
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MWA said:
No. EGR stands for Exhaust Gas Recirculation. In a nutshell, the idea behind it is to reduce emissions by recirculating a small amount of exhaust gases. If you want the long answer read this. http://en.wikipedia.org/wiki/Egr
Since EGR dilutes the air/fuel mixture, the factory added a lot of timing advance to compensate. If you delete the EGR you must use pre-EGR timing specs like from before 1973. This is why when the EGR is not functioning properly you get detonation under part throttle. A topic on another board came to the conclusion that EGR did not affect performance enough to warrant disabling it.
Bonnewagon said:
X2. EGR is only active under part throttle conditions. It is deactivated at W.O.T.
Well let me ask this. I am rebuilding a 1969 350 rocket. Did they come with EGR? And if so can I put it in an 1983 cutlass without using the computer. How would I go by doing that?
MWA said:
No, EGR was not required until 1973. Again, so long as you have the right timing curve in the distributor, it's a non-issue. You can't use the 307 parts, however, unless you run the computer.
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