Postby
Big-Bird »
https://forums.nicoclub.com/big-bird-u44704.htmlSun May 25, 2008 7:21 pm
aarontheplumber wrote:I didn't search through the forums. Any body know where to find a full tubular header. I have a 90 2.4l 4wd I think mine has a crack.
Postby
seang »
https://forums.nicoclub.com/seang-u122444.htmlThu Aug 20, 2009 4:30 pm
I was researching building my own header, and have some numbers. For peak torque at 4400rpm with a 2389cc 4cyl, the primaries should be 1.63 for 16ga, and 1.61 for 18ga steel, these are outside diameters. Header length should be 24.0228069446 inches. 4-2-1 would probably be best.