to be safe with the 9psi i think you would deffinitly want stand alone engine management.

 

is going with a thicker gasket just as safe for your motor as building the bottom end and if not how much worse is it for your engine.

 

Feel like providing any details on why you say this?

 

I ran 9 psi with water injection for over a year with an every day drive and never had any problrms.

 

I told ppl but car made power but no one wanted to belive me that it was on a stock motor now you can see !!

 

What made you decide to run water injection?

 

9 psi

 

The UR intercooler wasn't efficient enough?

Any idea how much cooler your intake temp was after injection in comparison to solely intercooled?

 

running 9psi with a stock headgasket vs. running 9psi with a thicker headgasket...
your gonna need to tune it pretty well to run the stock head gasket with 9psi... in order to run it with no problems. more boost with stock compression? I'd assume get a thicker headgasket just to be safe.

 

I am going to sound ignorant here, but 3mm head gasket, or roughly 0.077 inches will decrease compression from 11 to 8.5?

Does the install need anything special done to the head or block to accept the stainless steel gasket? Or do you just use regular headgasket sealer?

Also, how does this change effect the cams, and timing chain?