hi guys, my question is that on my jdm s4 engine, the fuel pressure regualtor in located on the bottom rail instead of the top like usdm's. I took off all my emissions and did the TB mod, do I just hook up the fuel pressure regulator to the UIM, along with the boost sensor and my bov?

 

Yep.

 

Cool, and for the coolant nipple on the rear of the engine, could I hook this up to my turbo and add some sort of restritor in there so I can still have my turbo water-cooled. Would it flow too much water into my turbo (if thats a bad thing)?

 

Ummmmmm..... Turbos water supply should not be affected by your mods... ??

I just shoved a bolt and some JB weld down that sucker when i did my rebuild and mods

 

Can you run the turbo without the watercooling? will it kill it at high boost? Just askin the question for all those NA guys going turbo with stock turbo..

 

No, you connect it to the angled nipple on the inside of the LIM, which is where it was fed from originally.

Why would you do this? You should not be touching the stock coolant supply.

Yes, but...

Yes, in fact it will kill it at any boost. Don't do it.