Running 18lbs on stock map sensor
 

It's wierd, I can run 18lbs of boost without any problems on my stock Honda map sensor. I heard after 11lbs it does something??

Re:Running 18lbs on stock map sensor
 

what management do you have?
are you running check valves or a missing link?

Re:Running 18lbs on stock map sensor
 

No check valves or anything, running the ZDYNE GOLD SECU w/ the B16FI program

Re:Running 18lbs on stock map sensor
 

After 11psi, it's not increasing voltage. Which means your ECU doesn't know you're higher than ~10psi.

I don't know the physical limit of the stock MAP sensor before the diaphram rips.

Re:Running 18lbs on stock map sensor
 

So you mean if I boost past 10lbs on the stock map my Ecu will only provide enough fuel for 10lbs worth of boost even though I am at 18?

Re:Running 18lbs on stock map sensor
 

No... I mean that the ECU will not know you're running more than 10psi.

Basically, it will use the last pressure column as a "catch all". Whatever fuel and ignition values you have in the last column are the same values that will be used for anything over ~10psi.

Same goes with RPMs.. any values you have in 7400rpms are the same values that will be used when you rev PASSED 7400rpms.

Re:Running 18lbs on stock map sensor
 

The actual sensor itself can suffer damage when you're running around 13 psi repeatedly. You need to hit it with a check valve.

Also, just curious, what size fuel injectors are you running?

Re:Running 18lbs on stock map sensor
 

I was able to run about 22 psi (on accident when I ------- forgot to reattach the wastegate actuator vacuum) with the AFC hack, and although I got a little bit of detonation the enigne took it. The detonation only occured when the boost first hit then I think the water injection shut it up. So its pretty risky ass ---- :)

Re:Running 18lbs on stock map sensor
 

watching my voltage of the map sensor @ around 10.something psi the voltage will peak but my boost will go up 2-3 more psi. I run the turboedit rom in my pm6 and i guess it doesn't have the MAP sensor CEL code in there anymore. or it has been modified to not be totally ------- retarded like the stock honda map CEL's >:(

Re:Running 18lbs on stock map sensor
 

heh.. Dave Blundell wrote a very nice boost routine so that the ROM used with TurboEDIT will not "Freak out" when it see positive manifold pressure.

Re:Running 18lbs on stock map sensor
 

what he said :)

Re:Running 18lbs on stock map sensor
 

I'm using dsm 450cc injectors.

Re:Running 18lbs on stock map sensor
 

watching my voltage of the map sensor @ around 10.something psi the voltage will peak but my boost will go up 2-3 more psi. I run the turboedit rom in my pm6 and i guess it doesn't have the MAP sensor CEL code in there anymore. or it has been modified to not be totally ------- retarded like the stock honda map CEL's


Does the stock ecu retards when hit with positve boost?

Calvin

Re:Running 18lbs on stock map sensor
 

as far as I know as soon as the stock ECU sees boost it goes into safe mode (and throws an engine light)

Re:Running 18lbs on stock map sensor
 

a stock ecu running stock code will freak out when it sees a posative manifold preasure.

it'll go into limp mode; run real rich and retard the timing im sure.

Re:Running 18lbs on stock map sensor
 

Runs like real ---- when it does this, yes. I have hit the ECL for the ECU seeing boost - its not pleasant. The car runs like serious ---- :(

Re:Running 18lbs on stock map sensor
 

just reset the ecu turn the key off and then on then it will run normal

Re:Running 18lbs on stock map sensor
 

yeah, but sometimes I am on the interstate and trying to pass someone when it happens - it really sucks :(

Re:Running 18lbs on stock map sensor
 

You can still turn your car off while you're rolling.. Put it in neutral, turn the key to *ACCESSORY ON*, don't turn it all the way back (OFF) to where you can take it out, otherwise, your steering wheel will lock. Then just start it up again, and rev match the RPM to whatever gear you're going to throw it in.. and wa-la. No more CEL.

Re:Running 18lbs on stock map sensor
 

what about the 3bar maps sensor. i am gonna be running 15psi daily on my biult D. what exactly does that do? is it nessacary?

Re:Running 18lbs on stock map sensor
 

Do a search for 3Bar MAP sensor. The topic have been beaten to death.

Re:Running 18lbs on stock map sensor
 

ok thanks man

Re:Running 18lbs on stock map sensor
 

Yes but usually while in the process, the car you're trying to pass zooooooms ahead.