Xeros

.............Yeah yeah my typing skills are **** becasue I peck and hunt and so peck some letters before others. Should I work on it yeah probably, but I would rather work on my 7. Now if you have nothing worth while to contribute **** off

DaveW

Needle-valve boost controllers really don't work very well - they still rely on the stock WG & PC solenoids for control, and boost value will vary with conditions (temperature, altitude, etc.).

Well-made ball-spring controllers (with the WG & PC actuator exits blocked), however, really do consistently control boost, regardless of conditions (assuming properly-functioning actuators and that your mods don't over-power the WG and give boost creep).

quicksilver_rx7

just kidding around. If you running the stock ECU, fuel cut should occur @ 12.1 psi. BUT, you can get boost spikes higher than that momentarily. I would get a PFC or something soon!

Xeros

PFC is on top of my list after the clutch and tranny stuff.

aREX4X

I had a 20 spike while trying to adjust one of those manual boost controllers. Just go like 40 in thrid and really lay into the gas. You'll see 20 really quickly with the boost controller not set right. Be careful with that stuff though. I was having a boost control issue too and it was related to a bad fuel injector connection and low fuel pressure. I forced it up to 15 where it should be and blew it up don't be like me. I now have a new engine, an electronic boost controller, and a better understanding of what went wrong.

So yeah you can spike to 20psi., and I see you already know not to do it again.

x...

RedR1

iTrader: (5)

IIRC, the stock FD twins (93-95) past past their thermal efficiency at 20psi. Anything after that and you're just blowing stupid-extra hot air into that thermal reactor we have as a motor.

technician

Some of that cold Wisconsin air causing it to grab a bit more?

I'm assuming your from southern WI, is the salt off the roads yet?

Narfle

iTrader: (16)

i was referring to vacuum, i should have clarified. you think i posted 600 times without learning the 10psi rule?

MR_Rick

iTrader: (7)

So you have no pills? Did you check for the restrictive nipples? If you didn't I recomend you look for them and drill them out then do this https://www.rx7club.com/showthread.p...erfect+10-8-10 and you should be fine. The nipples are the one going to turbo compressor housing. I follow that thread and it work fine with the same MBC you are using.

Xeros

actually i was gettina straight 7 psi range menaning I didnt have any pills in my lines...but I wonder if what happened in your fuel system might be the cause of my hesitation when i step on the gas in neutral and let it idel at 3000 and then on its own starts fluctuating from 3000-2700.