Yup. Take off the head, drop the upper and lower oil pan and go to town.

 

Hmmm. You beat me to that. I just went out and looked a few hours ago. Tempting...

 

wow, haha, id say it has a couple miles on it. It makes sence though, to swap it out.

 

so i just got home from bein out of town and put in the greedy rs bov. runns alot better actually, and even though its running dv on our cars it still sounds pretty sick

 

+1,000,000

It bugs me everytime someone with a Lancer wants to run a BOV just because they want the sound. I run a Forge re-circ valve and have had people ask me what kind of BOV I'm running and how much boost I'm running because they can clearly hear it while I'm driving. I ran my Forge as a BOV for a couple days and felt like I lost 20hp due to the abnormal AFRs on shifts.

 

ive herd people do a single spring mod with the rs, i took it apart just to take a look at it and its really easy as far as removing it, but i havent taken it out yet. so im guessing this will just make the spring rate even lower than the screw being all the way out. so what exactly will this help with?

 

im gettin my tune friday so i hope the tune will fix this, but right now if i push i at all in first gear or once it get to higher rmps in other gears (sometimes) is bogs down. i know im running really rich too so that may have somthing to do with it

 

This will help with allowing the BOV to open at a lower pressure since we don't run high boost on our Lancers. Having a BOV with a spring that's too tight will prevent it from opening on shifts and cause compressor surge.

 

What are your AFRs at when it bogs down?

 

ok yeah thats what i was thinking. well only have a narrow band so its not that accurate. but im running 440's, 225 pump and currently only at 6-7psi.

do you think i should turn the boost up to 10 (what i plan on runnin with the tune) and see if it leans it out a little?

 

440cc injectors are overkill without a tune. And in no way would I recommend turning up the boost without a proper wideband O2 sensor or a tune. But, if your AFRs are a bit on the rich side, feel free to turn up the boost 1-2psi and see if any improvements are made.

I was able to run 4psi on my setup before tuning and had safe AFRs. Just goes to show how the stock ECU is tuned from the factory. With your setup having 440's, you're getting more than enough fuel (actually too much) right now.

 

yeah i figured since im goin through gas like no other...

and as far as turnin up the boost 2 psi or so, thats pretty much what im goin to be runin after the tune lol

 

it wont feel right until you get a tune on it. timing has to be pulled. and of corse lean out.

 

yeah thats what i was hopeing

 

I would also recommend not going full throttle until you get a tune to prevent any damage to your engine. Running too much fuel is actually almost as dangerous as running not enough fuel. You can foul out your plugs, O2 sensors, or worse you can gas-wash your piston rings and scar your cylinders or snap a ring.

Adding a turbocharger to the engine will actually improve your MPG in closed loop because the ECU is adjusting via readings from all the sensors. Your engine doesn't have to work as hard with a turbocharger aiding airflow.