My procharged 502 runs at around 5 lbs Idle, and It can run at any pressure I set it for WOT. But I'm set at 24 psi.
I put my pressure relief in the procharger cross over.
My intercooler is fed by the outdrive when under way.(Thats why theres a red X on the picture). I have a 1 1/4" thru hull feeding the engine via sea strainer. My Stat housing dumps over board, Don't need the extra water steeling any HP. I run a 120° stat with 1/16" hole, because I boat in the N. East and engine water temps never see above 90° without a stat. I have been running this set up for 280+ procharged hrs. 40 of them this year.

Look in the general discussion thread. I posted a picture and sketch.

offshor, can you post the link to that thread??? Mine is set up like this except for the intercooler goes to a billet drive shower cap.
Also you don't have to relocate your oil cooler, Mine is there because I had to relocate for the super charger. The stock location is fine.

It's on page 2 now of the "general discussion" section.

"merc water pressure releif valve picture "

Whats the name of the thread offshor??

" merc water pressure releif valve picture "

Wette Vette's deal works.......

I had two motors over 40 psi on water pressure. The system is fully adjustable for each motor. I comfortably run under 22 psi WOT.

Mike
Apache 28

Sorry Offshor, but a search using

" merc water pressure releif valve picture "


brings you back here.....Thats a search in all forums...

Here ya go...........Merc relief valves