WRXSTIWS6

If I am getting a LSX iron block and boosting it 15+ PSI what are my PCM options? I would rather not go standalone.

edcmat-l1

iTrader: (10)

What is it going in? What do you plan on turning it to? What reluctor wheel?

Almost any of the GM PCMs are capable of handling 15 PSI. There's way more to picking a PCM than boost.

WRXSTIWS6

It's going into a WRX. Not sure on reluctor wheel yet as I have not built the engine yet. I just need to know what PCM's I can go with, or which ones I can't. I read that 97-98's don't tune well over 15 PSI.

WRXSTIWS6

Power goals being 1200+hp race gace tune

edcmat-l1

iTrader: (10)

You can use pretty much any PCM you want. The 97-98 aren't that great, but any of the other ones will work fine. But it depends on several other factors, which one you can, or need to use. Things like how high you want to turn it, whether you want to run electronic throttle, or cable throttle, crank sensor reluctor, etc. You really need to figure out the engine combo before you decide what you're going to use to run it.

Running race gas will destroy narrow band O2s in no time. WBs will last a little longer, but depending on what you run for fuel, and for sensors, they can be killed pretty quickly too.

Lots of things to consider.

WRXSTIWS6

Awesome thanks for the info. And regarding O2 sensors, what is commonly used to maintain longevity, or about how often will I be swapping WB O2's?

7second

iTrader: (1)

the ngk sensors with stand alones last MUCH longer

wait4me

iTrader: (10)

I would use a e67 computer with harness, and run a program from either a Zr1 or CTS v for the base. Run as many sensors as the production supercharged application does, and it will make it run very nice.

58X reluctor, and 4X cam gear for the triggers for that ecm.

We use that computer type for alot of projects.

Sarg

iTrader: (6)

Doing a very similar project in my WRX and we just went with a 5.3 motor paired with a 2001 ls1 ecu.

WRXSTIWS6

Thanks great info! Hope to see it running this summer

Nexus9

Hold the phone.... if you are boosting 15 psi, won't you need a 2.5 bar PCM operating system or you won't be able to tune it for total airflow...