RomRaider

2005 USDM WRX.

I flashed with a stage 1 map provided by OSECU.

Its getting no where near target boost. And the WDC seem really off compared to other logs I have seen.

For example, at 100% throttle, 4800rpm, w. a WDC of 85.10, my manifold relative pressure is 13.929. The target is ~16.

Is the wrong?

(no -KC by the way)

Thanks in advance for the help.

That WGD is really high. Ussually I only need 71% WGD to hit 16 psi (and thats with uppipe leaks).

Well thats great news.

I guess I will go back to the stock map, and monitor things, and update my findings here. I wonder if I just uncovered something wrong with my car.

Does anyone else have any suggestions?

Thanks in advance.

With stage 1, you need higher duty cycles than a stage 2 setup, so you really can't compare. According to that stage 1 map, you should be hitting 85 wdc% at 4800 rpm WOT, so your duty numbers are spot on. What boost did you hit before you flashed? Did you download the correct ROM for your transmission - there are two, one for auto and one for manual.

It really depends on what kind of boost you were getting before. If you were hitting less boost than the 13.9 in the same situation, then either you have a mechanical issue or you are at altitude.

Oppppps. I'm sorry, I'm so used to everyone having and Upipe and Downpipe at least I ddin't think about it. In that case (stage 1) I would have to agree, WGD looks ok!

When I get some free time I'm going to be working on the stage 2 map but I'll take another look at the Stage 1 soon and see if I can work on it with a few cars out here. Target boost is a bitch to tune right but eventually it'll be solid.

I'm really trying to get some data locations for Realtime monitoring and flashing and the base stuff has been put on the backburner. I think I took the backwards approach initially at it and I'm diving in head on now.

I have a K&N drop in filter, cat back exhaust, and Prodrive y-pipe.

Im running at close to sea level. ( I live in Orange County.)

Im going to flash back to the stock map and watch boost levels.

Ill update here soon!

Ok, so I went back to the base map. Here's what Ive seen in datalogs.

My boost still peaks @ 13.9 PSI, but at a WDC of 56.86.

So what I am seeing on the Stage one map is that the WDC is doing its job, but the turbo is just not developing any more boost.

So now my question is, what other factors, mechanical or tuning, could be preventing me from hitting target boost (or in this case, seeing any increase at all.)

Also, ev8siv, thank you for taking the time to reply to my thread. I can only imagine how busy you are, and I dont want you to feel an obligation to address this issue. Also, I am not complaining about that map, or trying to show that it was poor tuning, so I hope you dont see it as such. Thanks again.

- Andy

BTW, yes I am fairly noob to tuning, but I do understand basic concepts and feel like a have a pretty good grasp on what NOT to do. Im tryin to go nice and slow with all of this. Thanks for your patience!!

Heres what I would try from this point. Since your WGDC is working at lower levels I don't think that is the problem. Go into the "Target Boost" level and set it to something absurd, like 18psi. Take a few runs in 3rd gear without adjusting any WGDC and see if you end up with more boost.

It could be a miscalibrated sensor thinking that your 13.9 is Xx.X boost and being satisfied. If you still hit 13.9 then we've got more troubleshooting to do.

Ok, Ill give that a try. I figure I will go ahead and post a log as well w. Boost, WGDC, RPM, and Throttle Position. Anything else?

What are you using to log these parameters?

Could also be very little preload on your wastegate arm from the factory.

If he doesnt' have Uppipe Downpipe there should be no need to adjust the WG arm?

ECUExplorer

- Andy

I've heard that 04/05s can sometimes have a really loose wastegate arm from the factory. That is, it is isn't consistent from car to car. On the stock map, it probably doesn't matter much - I know all zeros in boost and duty cycles map still produces about 10-11psi on my car. So, if he had really loose arm, he might still be able to hit 14 psi, but not much higher. Just a thought as it still could be anything else - boost leak, for one.

I would tighten the arm 2 full turns and see if the peak boost increases.