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Cool...thanks 86BRATMAN. I will look into those HG.

The only reason I was going to use stock ej22t HG, is because I have a set laying around.

Maybe the plunger failed. It should be easy to see once you take it off.

Personally I would try to fix or replace the IACV before screwing around with the TB plate adjustment.

I am also starting to plan out the DOHC swap on the Turbo Wagon. I have been doing some CR calculations to see how much I will lose if I just swap the ej20h heads and manifold and keep all else equal. Initial calculations show (assuming stock ej22t CR is 8.0:1 and stock ej22t combustion chamber volu...

More data gathered on fuel pressure inconsistencies. I have not been letting the tank get below 1/4 full. No fuel pressure inconsistencies have been observed in the last few weeks. I am thinking it is probably not the fuel pump or the fuel pressure regulator, but possibly the system which moves fuel...

All bearing clearances were set to stock specs. ~0.001" for rods and 0.0015" for mains

Josh....that does make sense....thanks.

And a video of one of the final dyno pulls...Harvey was driving and I was on the laptop tuning.


Dyno Pull Video Link

Then it was time to make the trip down to Colorado to visit my dear friend Harvey aka Boostcreep and rent some dyno time. Straight off the highway and onto the dyno! http://imp-co.com/pictures/Build/IMG_0589.JPG http://imp-co.com/pictures/Build/IMG_0590.JPG http://imp-co.com/pictures/Build/IMG_0592....

I finally got a tiny bit of free time to post a proper update from the last couple of months. All of April I was getting the RSTi ready for the dyno tune. I was mostly concerned about the low oil pressure at high RPMs....50ish psi. First, I shimmed the original 10mm oil pump I had on there. I added ...

Thanks for the input Josh. Just to clarify this process.... When I see low fuel pressure readings upon start up at idle, I should pull off the vacuum line on the regulator and observe a change... ...if pressure goes up, it's probably not the pump? ...if pressure remains low, then it is most likely t...

I've been reading that the 02-05 WRX should have base pressure of 43.5 psi. I have seen my fuel pressure at 43ish psi for at least the first 5 months of operation. Last month I noted 38psi. Since then I've been seeing more and more 35 psi readings at idle. Lately 30 psi has been noted. Mostly it is ...

That is good to know Josh.

I was not sure, since I'm using the 02-05 WRX rails and pressure regulator.

Fixed the turbo wagon electrical short last night. It turned out to be a relay I was using to power the wideband O2 system (controller and gauge). The relay failed internally causing a short and draining my battery. Car is back up and running. I also opted to trim the 06 WRX wagon wing to try to fit...

Looking good! I like those wheels.

Fricken crap! I had a good week with the RSTi....tuning and track day, get home up north and the turbo wagon has developed an electrical short just sitting in the garage....WTF? I swear these cars are jealous of each other. Every time I used to take the n/a RS to the track and get home, the SS would...

I have a big update coming soon....been super busy whole last month getting ready for dyno tuning. Especially dealing with the 'low' oil pressure issues. Quick run down (I'll fill in details and pictures when I get some free time), I tuned the RSTi last week on Boostcreep's dyno. Came in with 275wtq...

Black switch in the back...not sure what color plug, off the top of my head.

Good you noticed that.

I like the idea of testing the pressure right at the pump. I will try it.

I got it from Subaru....08+ STi pump. It was $180. I think 135 from genuinesubaruparts.com but 30 for shipping.

At least it's not 0 psi.

I just installed the 11mm on my car....it did not help max RPM pressure (in my case), but hot idle pressure looks 3-5 psi higher.

What are you seeing for pressure at 5-6K RPM?

I used a Matco mechanical gauge I borrowed from a friend. Car has been running fine. The oil was a little too black when I changed it at 500 miles...but my motor is still pretty new. No excessive metal on the drain plug, but still makes me nervous. I swapped out oil pumps and pressure did not change...

I would throw a mechanical gauge on just for verification. My electronic transducer was 5 psi off across the range from the mechanical unit.

I'm also trying to figure out low idle pressure....mine is 5-11 psi depending on oil temp.

Honestly I have never touched the headlights...not sure how then stay so nice.

Same here on the defrost thing...not on def/heat either.

I'm going swap out the oil pickup for a new OEM unit tonight. New oring as well.

Lets hope pulling the pan off with the motor in the car is not complete brain damage. I know you have to lift the motor a tiny bit. I'll report back when I have some new data.

I know Josh....one of my best friends is a Simpson nut....so that was for him. He's kind of a Homer...haha