autospot

iTrader: (2)

ok bought a profec b spec 2 from books now i have to get her in

hus

Just fyi, find you a nice long stretch of road and do some 3rd gear and 4th gear pulls to tune it to your likings. IMPORTANT! Start as low as possible and work up from there to get it dialed in on how much boost you want to run. I made the mistake of searching for the Profec-b Spec2 tuning thread and tried to use someone elses settings that had the same mods as me and I ended up hitting 16.3psi on stock turbos!! My stupid fault. I run 11.9psi on the Low setting and 14.1psi on the High setting. I did my pulls on the Interstate late late at night and just steadily increased boost until I saw the numbers I wanted. Also remember the Power FC reads boost lower than most gauges and controllers so don't rely on it to tune the boost controller. My Pettit boost gauge needle reads 14psi, my profec-b spec2 reads 14.1psi, but the Power FC reads 0.94bars or 13.8psi.

autospot

iTrader: (2)

ok its in and what a pain in the *** to tune this thing NO consistancy at all no wonder people are poping their motors i read up on this controller for a few hrs so i wasnt green when i went to tune it i see whats coming next boom!!!!!

Stix37867

iTrader: (1)

Should of went with a knightsports EBS. Set the boost and your done...no kidding. I love it!!!!!!!!

autospot

iTrader: (2)

i just might do that if i dont get this thing dialed in

DaveW

https://www.rx7club.com/showpost.php...6&postcount=10

This is what I have.

WaLieN

I use two homemade Home Depot bleeder style adjustable valves for my wastegate and pre-control. I have a nice 13.5-11.5-13.5 pattern. Though, they are a total PITA to tune initially.

spiritrmazda

iTrader: (3)

I just bought an HKS EVC V, I'll let you know how it works once I install it to my new twin turbo set up.

PSI R2

Blitz SBC ID FTW Works awesome with no issues.

GoodfellaFD3S

iTrader: (213)

I just now saw this thread. Alberto/gracer7 gave you good advice-----the spec2 is pretty crappy as far as consistently controlling boost. the 'old' profec b or the newer type-s (same thing) are great for stock seq twins. I'm still using my ancient profec b on my 500R setup and it works fine.

I've been told many times over the years by smart people that the dual solenoid Blitz bc's are also a great choice.

streetRx7

iTrader: (5)

I've been told many times over the years by smart people that the dual solenoid Blitz bc's are also a great choice.[/QUOTE]



THATS WHAT I'M RUNNING....BLITZ Dual Solenoid bc...
Works Great...

Copeland

iTrader: (42)

I might be selling a Profec B Spec II soon. It's in great shape and I never used it (bought it used) for around $250 if you're interested.

Reason: I just installed new pilled lines and ported my wastegate so I no longer need the BC.