How many hp out of an EJ22T without cam/head/block work?

[idosubaru]

in stock form the EJ22T is only 160 hp. without digging into the long block (pistons, heads, valves, cams) how much hp are they capable of on the stock ECU?

[Dr. RX]

in stock form the EJ22T is only 160 hp. without digging into the long block (pistons, heads, valves, cams) how much hp are they capable of on the stock ECU?

Good question, I really doubt that anyone really knows because most people who want to improve HP are willing to do just about anything. But here are a few things that you can do. 1) Get a cold air system, you'll probably have to custom make this as I doubt any aftermarket vendors will have one for this setup. 2) Increase the boost, get a boost guage and an adjustable boost valve. 3) Get a set of headers and a free flowing exhaust system that includes a better down pipe. All of these will increase HP, but to what extend, I'm not sure.

[idosubaru]

this block is desired for high output builds, but requires alot of work?

seems like even getting to 200 would be tough without touching the long block.

 

it's also rated at 160 hp at 2800 rpm's. why so low? the NA version of the EJ22 rates peak hp at like 5600. i'm showing my lack of turbo knowledge.

[nipper]

There isnt much more to squeeze out without diging into the block. The exhaust system is already high flow, and the air intake systesm is pretty good. you can go with high flow air filter, but it filters the air a lot less, and can damage the electronics in the air stream. You can maybe play with the parameters in the ecu with a laptop, but the cost vs gain really isnt worth it. In this highly competative automotive industry, there isnt as much hidden horsepower as there used to be, especially in small engines.

 

nipper

[simbey1982]

i have a legacy turbo and there are really only a few things you can do.

 

1. Make sure you have light alloy wheels it helps alot if you have the stocks they are ok too

 

2. Putting on an intercooler, BOV, Fuel cut defender, Boost guage and controller is the best way to increase HP. It helps a lot and is fun fun...legacycentral.org has a TON of info on this. Also a WRX turbo is a mostly bolt on application.

 

3. Not that i condone this in any way, but some people are taking out their catalytic converters for off road of course:clap: and then opening up the exhaust. This helps a bit but is loud.

 

Like nipper said there isnt a huge amount of horsepower to be found but you can do some stuff to make it faster

[Legacy777]

Turbo...turbo....turbo.

 

The engine itself really doesn't need to be fooled with. A bigger turbo, and the supporting systems to handle that larger turbo will yield very nice results.

 

There's guys on the legacy central BBS around 200, and more.

 

The biggest limiting factor with these cars is the electronics, specifically the MAF sensor. It maxes out around an airflow of 200 gm/sec....which equates to about 200 hp. So to "properly" measure airflow you need a larger sensor, but then you need to have the computer to utilize it.....and as you can see, it snowballs from there.

 

That's pretty much where I'm at. I've got a brand new TD05 from deadbolt sitting in my living room, and STi injectors waiting to go in.....but without a decent engine management solution.....

 

When I'm done, I would like to be around at least 250 chp, if not more....and I think that is a very doable setup with what I'm planning to run.