Nothing to see here, just project Sisyphus, move along
#2003
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
But I tend to agree with 18, the actuator works and we know it works, plus its the easiest thing in the world to test. Something else in the system is binding, the question is what exactly.
Honestly, I think its just the Skunk2 TB. The air path for the idle air bypass is all jacked up with weird passages and steps and crap. It would not surprise me in the least.
Honestly, I think its just the Skunk2 TB. The air path for the idle air bypass is all jacked up with weird passages and steps and crap. It would not surprise me in the least.
You're talking about the min/max values for the idle control valve? Mine are 18 & 80, with a skunk2.
--Ian
#2004
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Okay, first here is a screen shot of my IAC valve settings:
![](https://www.miataturbo.net/attachments/build-threads-57/150126-nothing-see-here-just-project-sisyphus-move-along-iac%2520settings.png?dateline=1442371269)
Next, to give you an idea of how my EFR-6258 with medium wastegate (preloaded to 10psi) spools to compare to your own.. here are a few screen shots:
EBC turned off wastegate at 10psi
![](https://www.miataturbo.net/attachments/build-threads-57/150127-nothing-see-here-just-project-sisyphus-move-along-wastegate%2520spring%2520pressure%252010psi.png?dateline=1442371269)
EBC on at 20psi (didn't do a full pull but you get the idea)
![](https://www.miataturbo.net/attachments/build-threads-57/150128-nothing-see-here-just-project-sisyphus-move-along-ebc%252020psi.png?dateline=1442371269)
I hope this helps!
![](https://www.miataturbo.net/attachments/build-threads-57/150126-nothing-see-here-just-project-sisyphus-move-along-iac%2520settings.png?dateline=1442371269)
Next, to give you an idea of how my EFR-6258 with medium wastegate (preloaded to 10psi) spools to compare to your own.. here are a few screen shots:
EBC turned off wastegate at 10psi
![](https://www.miataturbo.net/attachments/build-threads-57/150127-nothing-see-here-just-project-sisyphus-move-along-wastegate%2520spring%2520pressure%252010psi.png?dateline=1442371269)
EBC on at 20psi (didn't do a full pull but you get the idea)
![](https://www.miataturbo.net/attachments/build-threads-57/150128-nothing-see-here-just-project-sisyphus-move-along-ebc%252020psi.png?dateline=1442371269)
I hope this helps!
#2005
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Just clock the chara, thats what I ended up doing. Dont run it like this for too long, or it'll bend the shaft, oh my. And thats the TLDR version of why my car has a turbosmart actuator. Also, with that actuator good luck getting much more than 15psi without running enough preload that your runout of actuator stroke and the flap wont open all the way. Then you either need to step up to the turbosmart dual port or a higher spring normal actuator.
#2006
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
What a day. I'm exhausted my knuckles are bleeding, and my fingertips are burnt (1800* housing tend to do that to them lulz). I'll probably expand on some of this more tomorrow, but here goes:
-first I connect air to the wg, it opens fine, but FAIL !! on the way back. doesn't close
- it binds so hard that you can't even pull it shut no matter what, only tapping it seems to loosen it up
- I then removed the wg rod and tested the wg with air. it works fine on it's own
-I then moved the wg flapper arm. it works fine for the most part. not perfect but ok
-after our talk w/ G, I remove the wg bracket which involves pulling one of the coolant feed lines to the turbo and 3 hex screws (pita to get to, cut hands
)
-I then wash my hands with coolant, because, you know.......that's awesome (lol)
-I move the wg bracket over to the next set of holes
-It's not even close to looking right at that point, not even close. I rage.
-After another convo w/ G, I loosen the CHRA, the comp housing, and rotate the chra about 10* while keeping compressor in same spot.
-re-install everything, connect air, and VOILA !!!! it seems to open/close. WIN
I start dialing in the car. The difference is already huge. So much better response, so much better low end.
original location
![](https://www.miataturbo.net/attachments/build-threads-57/150139-nothing-see-here-just-project-sisyphus-move-along-20150914_192742_1.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150140-nothing-see-here-just-project-sisyphus-move-along-20150914_192742.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150141-nothing-see-here-just-project-sisyphus-move-along-20150915_162647.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150142-nothing-see-here-just-project-sisyphus-move-along-20150915_162657.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150143-nothing-see-here-just-project-sisyphus-move-along-20150915_162717.jpg?dateline=1442377945)
next set of holes location
![](https://www.miataturbo.net/attachments/build-threads-57/150144-nothing-see-here-just-project-sisyphus-move-along-20150915_174334.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150145-nothing-see-here-just-project-sisyphus-move-along-20150915_174339.jpg?dateline=1442377945)
rotated chra
![](https://www.miataturbo.net/attachments/build-threads-57/150146-nothing-see-here-just-project-sisyphus-move-along-20150915_185756.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150147-nothing-see-here-just-project-sisyphus-move-along-20150915_185802.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150148-nothing-see-here-just-project-sisyphus-move-along-20150915_185808.jpg?dateline=1442377945)
I took a video of testing the new setup but I'll upload it later. it works, obviously.
So anyway, I start dialing in the car. it pulls proper now after about 2 hours roughing in the maps. It's running timing UBER conservative for now, for obvious reasons.
It's making some power.
But the boost is still pretty weird. Keep in mind for now it's ALL MECHANICAL, with the WGA line going straight to the compressor nipple. EBC is installed but I'll need G's go ahead to use it. The car is fast, already spins the RS3's in 1st on demand with next to no timing and very little boost.
But for some reason it creeps past 6k.
MAD VTAK POWERBAND YO
![](https://www.miataturbo.net/attachments/build-threads-57/150149-nothing-see-here-just-project-sisyphus-move-along-efrz.png?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150150-nothing-see-here-just-project-sisyphus-move-along-efrz.jpg?dateline=1442377945)
normal or weird?
I know EBC should fix this, but I did not expect this type of boost curve. I actually expected the opposite: good midrang with taper up top.
Is the flapper perhaps still binding a little bit and not opening at high rpm?
Speaking of,
DOES ANYONE HAVE DECENT BORGWARNER EBC settings for MS? Like solenoid freq range, frequency, and stuff like that?
-first I connect air to the wg, it opens fine, but FAIL !! on the way back. doesn't close
- it binds so hard that you can't even pull it shut no matter what, only tapping it seems to loosen it up
- I then removed the wg rod and tested the wg with air. it works fine on it's own
-I then moved the wg flapper arm. it works fine for the most part. not perfect but ok
-after our talk w/ G, I remove the wg bracket which involves pulling one of the coolant feed lines to the turbo and 3 hex screws (pita to get to, cut hands
![Tear](https://www.miataturbo.net/images/smilies/tear.gif)
-I then wash my hands with coolant, because, you know.......that's awesome (lol)
-I move the wg bracket over to the next set of holes
-It's not even close to looking right at that point, not even close. I rage.
-After another convo w/ G, I loosen the CHRA, the comp housing, and rotate the chra about 10* while keeping compressor in same spot.
-re-install everything, connect air, and VOILA !!!! it seems to open/close. WIN
I start dialing in the car. The difference is already huge. So much better response, so much better low end.
original location
![](https://www.miataturbo.net/attachments/build-threads-57/150139-nothing-see-here-just-project-sisyphus-move-along-20150914_192742_1.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150140-nothing-see-here-just-project-sisyphus-move-along-20150914_192742.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150141-nothing-see-here-just-project-sisyphus-move-along-20150915_162647.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150142-nothing-see-here-just-project-sisyphus-move-along-20150915_162657.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150143-nothing-see-here-just-project-sisyphus-move-along-20150915_162717.jpg?dateline=1442377945)
next set of holes location
![](https://www.miataturbo.net/attachments/build-threads-57/150144-nothing-see-here-just-project-sisyphus-move-along-20150915_174334.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150145-nothing-see-here-just-project-sisyphus-move-along-20150915_174339.jpg?dateline=1442377945)
rotated chra
![](https://www.miataturbo.net/attachments/build-threads-57/150146-nothing-see-here-just-project-sisyphus-move-along-20150915_185756.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150147-nothing-see-here-just-project-sisyphus-move-along-20150915_185802.jpg?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150148-nothing-see-here-just-project-sisyphus-move-along-20150915_185808.jpg?dateline=1442377945)
I took a video of testing the new setup but I'll upload it later. it works, obviously.
So anyway, I start dialing in the car. it pulls proper now after about 2 hours roughing in the maps. It's running timing UBER conservative for now, for obvious reasons.
It's making some power.
But the boost is still pretty weird. Keep in mind for now it's ALL MECHANICAL, with the WGA line going straight to the compressor nipple. EBC is installed but I'll need G's go ahead to use it. The car is fast, already spins the RS3's in 1st on demand with next to no timing and very little boost.
But for some reason it creeps past 6k.
MAD VTAK POWERBAND YO
![](https://www.miataturbo.net/attachments/build-threads-57/150149-nothing-see-here-just-project-sisyphus-move-along-efrz.png?dateline=1442377945)
![](https://www.miataturbo.net/attachments/build-threads-57/150150-nothing-see-here-just-project-sisyphus-move-along-efrz.jpg?dateline=1442377945)
normal or weird?
I know EBC should fix this, but I did not expect this type of boost curve. I actually expected the opposite: good midrang with taper up top.
Is the flapper perhaps still binding a little bit and not opening at high rpm?
Speaking of,
DOES ANYONE HAVE DECENT BORGWARNER EBC settings for MS? Like solenoid freq range, frequency, and stuff like that?
Last edited by 18psi; 09-16-2015 at 09:53 AM.
#2010
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
it apears to me that the wastegate actuator rood when tightened side loads the wastegate valve shaft enough to bind it on to the turbine housing, i would test this theory by bending the catuator shaft ( stay close to the treads but not on them since the treaded section is not as strong as the rest of the shaft) to align the hole of the wastegate arm to the threaded actuator shaft section and test it again, i suspect that it will make the problem go away if you have the correct alignment and are not sideloading the wastegate valve.
#2012
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Thread Starter
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Join Date: Apr 2010
Location: Very NorCal
Posts: 10,448
Total Cats: 1,900
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Guys, keep in mind that when I bought the turbo there had been no announcement about v-band inlet EFR. The only option was the T25 flange IWG version. I would have absolutely gone v-band/EWG had it been an option at the time.
Also, I only have the 2.5bar MAP in my MS3 so I'm limited to 20psi. I haven't bothered to upgrade it because I figured 20psi would get the job done regardless![big grin](https://www.miataturbo.net/images/smilies/biggrin.gif)
Thanks guys, keep the feedback coming. I love you all.![love](https://www.miataturbo.net/images/smilies/love.gif)
That EBC is the one supplied by Borg Warner with the turbo, its a super ubiquitous GM 3 port so settings have got to be out there somewhere. I also have a 4 port MAC 46A-AA1-JDBA -1BA valve, I believe port A can be plugged and it works exactly like every other 3 port MAC if that's any help.
Also, I only have the 2.5bar MAP in my MS3 so I'm limited to 20psi. I haven't bothered to upgrade it because I figured 20psi would get the job done regardless
![big grin](https://www.miataturbo.net/images/smilies/biggrin.gif)
Thanks guys, keep the feedback coming. I love you all.
![love](https://www.miataturbo.net/images/smilies/love.gif)
That EBC is the one supplied by Borg Warner with the turbo, its a super ubiquitous GM 3 port so settings have got to be out there somewhere. I also have a 4 port MAC 46A-AA1-JDBA -1BA valve, I believe port A can be plugged and it works exactly like every other 3 port MAC if that's any help.