adjusting the acuator arm

^THIS
this is why i love this site...get some good input but also joke around and make me rofl.....thank you for MNSUBARU...and curly i wanna get you an ROFLWAGAN emblem thats beeeee saweet

 

Why else would you tighten the wastegate arm? So it doesn't fall off?

 

am i the only jackass that doesnt thing taras should be giving advice?

 

I must be a jackass too then ha ha ha

 

this is true dont want it to fall out now do i and yeah a wb02 would be a good idea but i dont wanna drop that much on one when i just wanna log adjust and i probably wont do anything performance for another year or so

 

I tightened mine a few too many turns, then adjusted my wgdc accordingly. I use 40% wgdc to achieve 18psi now :eek3:

 

I read up on this some in NASIOC... how many of you guys have adjusted the arm? I never touched it on either of my turbos. Without hearing WG flutter, could this still be something that I could benefit from? Maybe hold boost better, decrease spool time,....??

Always looking for a cheap modification

 

It's not a bad "mod," and is used by many 2.0L WRX owners to achieve more boost out of the stock BCS. It simply makes boost harder to tune/control with the stock BCS.

Tightening the WG arm has nothing to do with WG flutter (which is a perfectly normal mechanical phenomenon).

 

Ok, what I read is that you should adjust it so that you are 1 turn past contact. This will generate the correct pre-tension in your WG valve. Or at least this is a good point to start tuning the setup.

Here is my fear... I really don't want to run my car at max boost right now. I have refrained from any WOT runs with my new setup and I don't plan on pushing it until I am on the dyno with things being metered. I don't think I will be able to adjust the WG arm without hammering on it a little and looking for boost spikes.

Now, this is extremely easy to adjust, but I am assuming that Jorge isn't going to be willing to mess around with the WG arm while tuning? Shane at DB never made any comments about the WG when he was tuning the car last spring. Hopefully if Shane didn't say anything, I am safe. Would he have been able to notice if it was out of adjustment while he was tuning the car?

 

It takes about 2 minutes if your heat shield is off. I think it would be safe to assume that anyone who knows how to tune Subaru's knows how to adjust the WG arm, and if it would benefit your car when tuned.

 

Exactly, I just don't know if Jorge will be willing to mess with it if it is out of adjustment.

Thanks for the advice.

 

If he is trying to achieve, for example, 18psi and your WGDC is maxed out at 100% and your hitting 16, he will tighten your WG arm to achieve the 18psi, it's part of tuning the car to reach your boost target(s), if necessary

 

Thanks for the heads up. I think I am just going to leave it and cross the fingers, ha ha.

Sorry to hijack the thread for a bit. Thanks for the info.

 

yes, i try to keep things in check and give people a hard time. also, make me the emblem and i will rock it.

btw, i agree with 3rik. :laugh:

 

im trying to download romraider but i have dial up and dont have the time for it to download....so i wanna log it first....but im barely hittin .11 bar and thats under 15 lbs....gauge cant be off that much so i know it needs adjustment just gotta wait until i can get the damn program downloaded

 

really only 40%????

 

Honestly, even with tightening the WG arm a lot, most 2.0L WRX's struggle to hit 16-17 PSI with the stock BCS. If you want more boost, get a GMBCS.

 

so are you saying i should just get a gm bcs??

 

I speak the truth.

FYI: if you do go with a gm bcs, you will need a different tune than you would have with the stock bcs.

 

yeah i'd get the tune from the xpt website stage 2 with gm bcs tuned for 18 psi i do believe....where can i pick one up at ive tried searchin google to no avail

 

PM Shibbs

 

^Or go to the dealership

 

I have stock BCS and used to hit 19.67psi. Had to loosen the wg arm a turn and now its around 17.89psi. My map is set up strange. Target boost is all the same. At 2500rmps and 25% throttle it set at 14psi and its like that that at 50% and 4000rmps. mbc style?

 

or maybe your stuff is just screwed from being tampered with

 

curly let us not start this again :biggrin:

 

Ohh really well thats odd because my setup was 16.5ish max with Enginuity/Nate and Scuba Steve was 17.5ish with Cobb/OTS (ohh and I beat Dave everytime, he likes to talk about that :biggrin so you must have some super duper stock BCS or be full of BS.

 

^ so drop the c from bcs????? hmmmmm i has no idea ive hear of 17.5 as a high with the stock bcs but nothing much more....i thinks i might just go with a gm bcs and be done with it

 

i am hitting 17.7 right now with the oem bcs. just got my gm bcs in the mail yesterday so that will be going on soon.

19psi on the stock bcs...not sure about that. did you log that taras?

 

I have logs to prove it beatch! :laugh:

 

show these logs...

 

starting up my other lap top. will try to find them!

 

I love the improvement I got from the GM BCS, I don't have before and after road dyno's but I will find mine for ya.

Good for you!

 

well do you mean by boosting sooner?? holding longer??? jw

 

hitting peak boost sooner

 

i think i gained about 300rpm quicker spool when i added the gm bcs to my old wrx. i'll definitely have before and after logs for you guys when i do it to the L in a few days.

 

so what you are saying is that the butt dyno will feel it??

 

depends on how intune you are with your cars attributes. most people definitely do feel quite a difference.

 

what are you trying to show us? you had 500lbs worth of people/stuff in your car???

 

I felt quite a bit of difference especially after the 17psi mark, the car seems to pull much harder than before.

 

YES! No I mentioned above I would post the road dyno.

 

dang..get those fat chics out of the car CHET!!

by that graph it looks like you are hitting peak boost pretty late actually

 

still waiting on Taras's log

 

If by fat chicks you mean myself, Nate, Dave then I'm sorry. Umm 3000-3200 RPM, but I hear you have somethings at Grimmspeed that may help that.