AA pipe measurement

[Paul Traufler]

I have a AA45 and pipe and I'm not sure where to take the pipe length measurement from. I attached a picture of the pipe as it comes from the factory, (with the pressure tap installed) and I THINK the measurement should be to the "seam" or the line around the pipe just past the pressure tap. This is going in a JAE 45 rigger and I was looking at starting with a 9 3/4" length (glow plug to the seam) but I wanted to see if this is the way to go. A little help please...

 

[Walt Barney]

Paul,

Measure from the center of the block at the same angle as the pipe to the seam. 9 3/4 would be a good starting distance if the engine is not broken in, if broken in with about 1 gallon thru engine then start at 9 1/2" I run the same style pipe at 9"

Walt Barney

 

[Al Hobbs]

Correct, run the tape from the center of the cylinder in line with the pipe. With a 1457 and a broken in engine, I run at 9 and 1/4 inches. So, starting at 9 and 3/4 inches with a new engine is good.

 

[Paul Traufler]

Thanks guys! Just want to make sure on this as it is better to ask then guess!