While I was working on trying to figure out what was going wrong, Alex Lindsay and a few other drivers were asking about the fuel pressure regulator, if I had the OEM FPR, and if I could test the fuel pressure.
Nikki loaned me her fuel pressure regulator and I ran the test. I have the S14 OEM FPR and Walbro 255 pump.
I was at 59 psi with the motor off but fuel pump on, 40 psi with motor idling, and around 37 psi when I revved and held the motor at about 3,000 rpm.
While I was cruising to 7-Eleven to buy a few drinks, I recently posted on FB asking around to see if anyone had a spare air filter I could borrow. Ironically, I drove past my buddy Guy and he DM'd me asking how the motor was running.
I told him, "like shit when I hit boost" so I told him I wanted to throw out the CX Racing intake (or cut it down so I could run a normal filter pod). He had one in his garage! He brought over a stock SR intake pipe and a filter that didn't have the stupid cone/disk in the top.
The motor was running decent that night, but I later found out it was still misfiring. Regardless, I drove down to Kent WA for NW Toy Run.
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