Stock MPS boost?

[remotegt]

hi

Just curious as to what the 3 mps boost levels are?

what is 1st abd 2nd limited to

what about 3-6 what is max boost.

and for those who have increased boost what is a safe limit?

i was thinking it may be around 11 or 12psi am i in ball park or am i way out.

[lazydog]

14psi on a MPS6.

I am running 21-22psi safely. MPS Garage told me not to run more than that otherwise I would most prolly bend a conrod!

[2000MNLESS]

14-15.5psi for holding pressure on MPS3

spike to about 17psi usually, some have hit 19psi though I'm pretty sure.

[Jeev]

Originally I was seeing boost levels spiking to 19PSI, the numbers used to be 16PSI in 1st and 2nd, and 18PSI in every other gear. Apparently this changes after you get the "Evil" PCM Update and they wind back the boost a little.

[2000MNLESS]

Originally I was seeing boost levels spiking to 19PSI, the numbers used to be 16PSI in 1st and 2nd, and 18PSI in every other gear. Apparently this changes after you get the "Evil" PCM Update and they wind back the boost a little.

Boost wasn't removed. That would lead to a major fraud case against Mazda if proven. The map of how the boost ramps up was made less aggressive to limit the massive strain on the No.4 engine mount/bolt..

[Jeev]

Might be time to check my hoses and get a new BPV then. The Scanguage is showing about 1.5-2 PSI less that it used to =\

[2000MNLESS]

Might be time to check my hoses and get a new BPV then. The Scanguage is showing about 1.5-2 PSI less that it used to =\

I didn't think the Scangauge showed Boost? :S

Check the intercooler hose that connects to turbo, found mine had moved a bit, adjusted then retightened.

[Jeev]

It shows something much more useful... MAP =D

MAP - 14.7 = Boost/Vacuum.

[EQ]

17 spike on mine, opening the exhaust increased it and brought it on earlier. Looking forward to flashing mine.

[Pulse_Mps]

For those of us rocking JDM boost gauges I'm spiking to about 1.1 - 1.2 bar and holding at about 1 bar.