Parmas,
Thanks for the input, I was thinking a check valve would be essential but wasn't sure on cracking pressure yet, i'll order some of those check valves and see how it functions again soon. With the check valves, the line sould keep filled and only discharge the line pressure back through the solenoid and into the washer res. To make sure it donen't drain the line between the solenoid and injectors, introducing air - I made sure to have the exhaust line higher than the rest of the circut.
Today I decided to do a threshold test on a stock audi radiator with an integrated gearbox cooler. I cut down the flanges and tapped the ports for -6 and put it on the test bench, It held up to 700 psi and ruptured internally at 800.
I don't expect that the trans cooler portion of the radiator would ever see more than 300'ish psi in operation, but we'll see what happens once it's set up.
Very interesting setup with the braided line, do you have any pics? 10*c is a huge rise!
More to come soon...
