i have a 97rs and i made the Adjustable over boost protector using two diodes and a potentimeter and it works fine but what is the exact voltage a map will count as boost? casue i thought it was 4.7 so i set my AOBE to that and it still bucks , so i moved it down to 4.5V and it is fine now but i would like to set it only like .02 volts away from what it need to be. anyone know?

91 civic hatch, homemade turbo+ LS motor = 12 sec street car.

4.5 volts is right where it should be, dont change it.

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

You could try to creep up within .02 volts of it, but there's really no point unless you're trying to pull out every degree of timing you possibly can.

When my stock ECU was still doing fuel, even with a missing link and the diode/resistor trick on the MAP sensor AND the voltage capped off around 4.45 volts, I would STILL get issues around atmospheric. It was really annoying. Oh well, it's not a problem anymore.

2016 WRX STi Limited (current)
2001 A4 1.8tqms (donated)
1991 GVR4 #1933 (sold)
old.dsmregistry.com/detail.php?carid=218 (dismantled)

ok good cause that 4.7 was killin me with a fuel cut and nearly tossing me out the front . ha .. but 4.5 seem good for me ,.

91 civic hatch, homemade turbo+ LS motor = 12 sec street car.