need to know

[Bu11dogg2]

Does anyone know the stock PSI for 2003.5 protege speed?
im installing a boost contoller and i need to know where to set it.
Also what is the max PSI that is safe for my engine?

[pdhaudio83]

stock is 6-7psi
are you flashed?

you really really should read up on what is safe, it really depends. some have blown at STOCK psi, some have blown at 14psi.

[Puckpimp71]

Stock boost is what the boost gauge tells you it is. Mine was 6psi. Some members have posted a low of 4psi, I think and a high of 9psi. I'd say 8-9psi is cool as long as you're not spiking over 9.5-10. That's with copper plugs as some cheap insurance.

[Bu11dogg2]

Bare with me bro, im new to this website, What is flashed? and what do you think my max safe psi should be?

[Bu11dogg2]

Stock boost is what the boost gauge tells you it is. Mine was 6psi. Some members have posted a low of 4psi, I think and a high of 9psi. I'd say 8-9psi is cool as long as you're not spiking over 9.5-10. That's with copper plugs as some cheap insurance.
Thanks Bro, I appreciate the help i will kepp your advice in mind

[Puckpimp71]

Flashed is when the car gets taken to the dealership for to get the pcm "flashed". It's a timing advance to smooth out the hesitation these cars are known to get. You don't want to boost much more than 9 on a flashed car because you can run overly lean and blow your engine. I posted the max psi most people with higher boost run in my previous post. 8-9 is max if you're using a manual boost controller so you can account for boost spikes. If you have an electric boost controller then 9-10psi should be good since the EBC isn't know to spike.

[pdhaudio83]

there is a "flash" to the engine computer since there is new mapping. I am wondering if you had this done

[Puckpimp71]

Run a search for supporting mods too. There's sticky with proper spark plugs to use depending on your situation, also with the increased air taken in, it'd be a good idea to get a midpipe to allow that extra air out. A better intake will also allow your turbo to pull the air in a little more efficiently.

[Bu11dogg2]

there is a "flash" to the engine computer since there is new mapping. I am wondering if you had this done
no not yet

[Bu11dogg2]

Run a search for supporting mods too. There's sticky with proper spark plugs to use depending on your situation, also with the increased air taken in, it'd be a good idea to get a midpipe to allow that extra air out. A better intake will also allow your turbo to pull the air in a little more efficiently.
I had an AEM cold air put in today, 3inch intercooler is going in on saturday.
I think i will set the boost regulator at 8 or 9 PSI to be safe. Engine internals are next on my list

[Puckpimp71]

Supposedly most of the 2003.5s were done either at the docks or by the dealerships upon arrival. Get a report of the warranty work done to your car and see if there's a PCM upgrade on it. Until you know for sure, I'd run 8psi. Unfortunately raising boost on this car is a little trickier than most factory turbo cars. You got 3in intercooler pipes to replace the plastic stock ones?

[Bu11dogg2]

Supposedly most of the 2003.5s were done either at the docks or by the dealerships upon arrival. Get a report of the warranty work done to your car and see if there's a PCM upgrade on it. Until you know for sure, I'd run 8psi. Unfortunately raising boost on this car is a little trickier than most factory turbo cars. You got 3in intercooler pipes to replace the plastic stock ones?
the guy who's doing it for me is suplying all that stuff. i got a PRofec B SpecII boost controlling going in the same day

[Bu11dogg2]

Supposedly most of the 2003.5s were done either at the docks or by the dealerships upon arrival. Get a report of the warranty work done to your car and see if there's a PCM upgrade on it. Until you know for sure, I'd run 8psi. Unfortunately raising boost on this car is a little trickier than most factory turbo cars. You got 3in intercooler pipes to replace the plastic stock ones?
I hate to keep bugging you , but i just got my Protege and i cant find any info on it other than what on Mazdausa.com do you know its stock stats such as 0-60, 1/4 mile, hp?

[pdhaudio83]

please, dont blow your motor... dont upp the boost without good internal mods.

[Puckpimp71]

These cars were essentially hand assembled port side. Basically everything you don't see on a regular Protege were done by the lowest bidder when these cars came into North America so there are a lot of factory freaks here. Officially, I think our cars do 0-60 in 6.9 seconds and the 1320 in 15.2 @ 92mph. Some here have gotten high 14s stock and performance stats are always driver dependant.