Northstar Engines and System Technical Discussion Discussion, Down Pipe Should be Ported in Cadillac Engine Discussion; I'm doing another 1996 N* engine conversion in a Pontiac.
I took off the down pipe from the motor and ...
I'm doing another 1996 N* engine conversion in a Pontiac.
I took off the down pipe from the motor and happened to look inside it where the two pipes are welded together. I was astounded! When GM welded the small pipe into the big pipe from the factory, they left an 1 1/4" of piping sticking out inside. That's a significant restriction from my perspective.
Next time you have exhaust work done, you might want to consider port it.
As a result, I'm going to clean it up. Just wanted those of you that care about your exhaust to know about this restriction. Perhaps most of you already know about the obstruction....
Automobile(s): 98 eldo/KD54 w/N37,T96,QA1,D55,DS3,U1Z. U3R next
Re: Down Pipe Should be Ported
This has been posted before with pictures and I couldn't believe it. Yet when I saw one with my one eyes off an eldorado in the salvage yard, I still didn't believe it. Nice..........It definitely needs to be worked on for sure. Thanks.