I'm trying to figure out how much psi goes through the coolant lines both at idle and WOT, I am trying to convert to hardlines to AN fittings and I saw that summit has some AN fittings that use compression nut fittings for the adapter. I believe 50psi is max....

This will be replacing the cheaper rubber hoses that goes from my water housing to my turbo. I've read on other member post that they had tap for AN fittings; some with luck, others none....And CrispyRX7 had used JB Weld on his...I'm just hoping these compression nut adapter fittings work.

Asides from that, since a 3/8 rubber hoses fits over the pipe [outside diameter, do you think a 3/8" compression nut would fit that? I know hoses give a little bit, the nuts don't

 

The pressure of the system is what's on the radiator cap, normally 14psi. It's well worth getting lines and fittings that are well above that rating, overkill is OK here.

Dale

 

Thanks Dale, I know you are a guru here on the board, do you know or have any experience with these fittings before? And would you know about the pipe sizing if the pipe would work if a 3/8 rubber hose fits snug on it? I think CrispyRX7 used a -8AN [1/2"] and bored out the hole on the fitting a bit for it to fit, then used JB weld. I got some leftover -6AN and prefer to use that. I've tried dry fitting a -6AN on that pipe and its hard to get a measurement without a measuring caliper...also the nipple(s) has been sawed off, so I have a straight pipe now.

http://www.reganrotaryracing.com/fdturboimprove.htm