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Old 03-23-2009, 10:17 AM   #176
FleaDog
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^^^ thanks man, comments appreciated
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Old 03-23-2009, 12:26 PM   #177
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Quote:
Originally Posted by eminehart View Post
A signal lock occurs that can cause pressure to build between the wastegate solenoid and the boost controller. It won't function properly. You will probably cause the wastegate to open prematurely and it won't behave reliably or consistently.

With a parallel setup this is less likely to be noticed. If you were not running this setup you will be running in circles trying to tune boost.
Good to know. I've tried running that port VTA, returned to the intake post MAF, and now blocked off and noticed no discernible difference.
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Old 03-23-2009, 08:18 PM   #178
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Quote:
Originally Posted by eminehart View Post
I would run it just like the normal Parallel setup. use the side nipple of the EWG in place of the wastegate actuator. Leave the top of the EWG VTA

^^^thanks

I picked up a grimmspeed ebcs in the GB, slick mounting bracket and clip to oem harness:





OK, so heres my crude diagram:



per the grimmspeed instructions (06-7 sti)
port#1 - routed back to intake (where factory BCS mounts) OR, no connection
port#2 - wastegate actuator arm or EWG bottom nipple
port#3- Boost source

Last edited by FleaDog; 03-23-2009 at 09:17 PM.
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Old 03-26-2009, 12:38 AM   #179
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with the #1 port on the grimmspeed ebcs routed to the intake:

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Old 04-10-2009, 11:07 PM   #180
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Quote:
Originally Posted by eminehart View Post
This is incorrect
The grainger ports are marked differently than the Perrin but on the grainger

Port 1 is VTA or return to intake they work the same.(perrin port2)
Port 2 is for Wastegate (perrin port1)
Port 3 is for Charge side of turbo. (perrin port3)

The grainger is the same as the perrin so check these instructions for clarity
Perrin Boost Control solenoid PDF

You want the fast response setup. Slow response is bleed type like the Factory. I believe you may have set it up to be this way so you basically did nothing but mimic the factory BCS. The factory BCS doesn't work with this setup because of the bleed. Just change your connections around and you'll be fine.

PM me if you have any questions or want some WGDC tables to start with. Just let me know your Target boost and I can get you in the right direction.
^^^
saw this good postearlier eminheart re: grainger vs perrin
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Old 04-11-2009, 12:26 AM   #181
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Re-did my diagram, looks a bit cleaner, shows 3-port grimmspeed EBCS, hallman evo rx MBC better in their parallel configuration:

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Old 04-24-2009, 08:43 PM   #182
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is it possible to incorporate the top port of the EWG using this method? i currently have it set up like above (13psi spring) and it seems to crack open slightly before actually hitting 13psi.

how would one do so? would i just take a boost source, to a separate MBC, then to the top port of EWG and just bleed a little pressure off?
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Old 04-28-2009, 08:23 PM   #183
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has anyone used this setup with an HKS EVC?
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Old 05-25-2009, 10:57 AM   #184
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has anyone ever quantified the difference between ball and valve vs. bleeder in the hybrid system?

Last edited by SurfWagon; 05-25-2009 at 11:12 AM.
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Old 05-26-2009, 12:09 PM   #185
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Quote:
Originally Posted by SurfWagon View Post
has anyone ever quantified the difference between ball and valve vs. bleeder in the hybrid system?
Overall ball and spring is far superior to bleeder type MBC. Bleed type MBC are kind of like running one WGDC across the board. This why bleed type systems don't work too well. I doubt that you would see any advantage to a bleed type Boost controller in this system.
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Old 05-26-2009, 12:59 PM   #186
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Here is a diagram I created some time ago. Its a derivation of the boost control described in this thread, but with an added boost bypass for meth failsafe.

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Old 05-28-2009, 03:54 PM   #187
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hey Tgui, it looks good! i wonder if the bbk-20 is necessary at all though. perhaps it's needed by the ifs-10?

my 3-port is routed through my dds3 (aquamist) controller. if the flow sensor gets too high/low, it's cuts signal to the 3-port which just goes open and i'm running wastegate boost.
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Old 06-09-2009, 12:58 AM   #188
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I tried this method tonight with a gm bcs and a turboxs dual stage bleed off style bc.... It did not work I first just set the turbos xs to 17 psi and then I hooked the two in parrallel or what ever ( same as ride5000 has his hooked up in the picture on the front) My f'in boost shot straight to 24 psi on my stock map sensor so probably higher...lol and the bcs was set to 17 psi just maybe 2 mins before that.... Wow anyone know anything I don't.... Do I need a ball and spring style bcs or whatever?
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Old 06-09-2009, 01:55 AM   #189
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It won't work with a bleed style BCS, has to be blocking.
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Old 06-09-2009, 06:18 PM   #190
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It will not work at all? No how no way?
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Old 06-09-2009, 06:52 PM   #191
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Just so absolutely everyone knows/does their own tuning - DO NOT clear your Turbo Dynamics tables - this will cause your WGDC to stick and do crazy things....

Otherwise 24psi by 3450 @90*F on a 2.0/18g/110k miles.


-Jerod
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Old 06-09-2009, 07:39 PM   #192
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Quote:
Originally Posted by JSarv View Post
Just so absolutely everyone knows/does their own tuning - DO NOT clear your Turbo Dynamics tables - this will cause your WGDC to stick and do crazy things....

Otherwise 24psi by 3450 @90*F on a 2.0/18g/110k miles.


-Jerod
What do you mean "clear your TD tables?"
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Old 06-09-2009, 07:45 PM   #193
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Turbo dynamics tables - IE use 0's in all levels of boost error... This will freeze WGDC or keep it from properly adjusting per throttle position/rpm..


-Jerod
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Old 06-14-2009, 02:14 AM   #194
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Just trying to get this all straight in my head. Please see attached diagram. (Note I have a 2005 LGT.)



Questions:

1) Is my diagram the correct set up, including what is normally open and closed?

2) If you run the NC outlet back to the intake, it seems that you could almost never pressurize the MBC because you're bleeding off the air you need to pressurize it (since the system is in parallel). On the other hand, if you cap the NC outlet, while you're under the level of boost that would normally open the MBC, it seems like just changing WGDC won't have much effect because the air/pressure is basically trapped with nowhere to bleed off (trapped between the compressor nipple and the actuator), so the actuator remains pressurized even if the solenoid is cycling open and closed. Kind of like pressurizing a pipe with air, then openning and shutting a valve in the middle of the pipe...the pressure on both side just stays the same.

3) I've read on the stock solenoid, you're not supposed to run over 95% duty cycle. How do you get around this on a N.O. solenoid? At a certainly point (e.g. 100% throttle), you go to 100% WGDC (basically keeping the solenoid closed) so all air is routed through the MBC. Will this "burn out" the solenoid as it happens everytime you floor it?






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Old 06-14-2009, 07:50 AM   #195
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my solenoid is often at 100%DC and i have never had an issue. i currently use the GM part but have also used the grainger under the same conditions.

as far as your diagram, remember that at rest, without any current, the system should be wastegate pressure, and the ecu energizes the circuit to raise boost. it seems like that is correct in your diagram.

i capped my NO port and have never seen any issues, but you have to test it yourself as all setups may be slightly different.

hth
ken
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Old 06-16-2009, 09:45 AM   #196
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Quote:
Originally Posted by HOLLYW00D View Post
hey Tgui, it looks good! i wonder if the bbk-20 is necessary at all though. perhaps it's needed by the ifs-10?

my 3-port is routed through my dds3 (aquamist) controller. if the flow sensor gets too high/low, it's cuts signal to the 3-port which just goes open and i'm running wastegate boost.
Its not needed really, but I like having a separate system I can easily remove. Which it is now until I get my UTEC 3D mapping my meth injection at some point. I'm disillusioned with meth injection right now, I need a more graceful implementation. Till then 93 all the way!
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Old 08-09-2009, 12:19 AM   #197
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I'm trying to get my td06-20g 8cm ej205 to spool up faster and stay in boost coming off the lc at 5000-5500. Right now I am just running a hallman mbc. It controls boost fine and spool time is average. Sometimes it comes off lc and drops out of boost and bogs.

This is the configuration I am thinking about trying. I want to use the factory bcs to bleed off the boost signal before it hits the mbc. I would set the target boost to max, set the wgdc to 100% up until 4500 rpm then 0 after and set the td for negative boost error to 100% also. Then zero all the comp tables. Hopefully that would make the factory bcs just dump the boost signal to the mbc until 4500. The turbo spools around 3800-4000. The inspiration for this was that I recently got a big split in the hose leading from the compressor nipple to the mbc and it came off LC awesome until I had to lift when it overboosted.

Think it will work?

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Old 08-11-2009, 08:51 PM   #198
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^^ This method worked perfectly. I now make 22 psi in first gear with my EJ205 with TD06 20G 8CM2. It comes off the LC and stays in boost!
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Old 09-19-2009, 07:27 AM   #199
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I used that same setup tonight (HMBC+OEMBCS) to reduce the boost taper I was getting with an MBC alone. It worked pretty well. My WGDC table has 0% at 5500 RPM, ramping up to 85% at 7000 RPM, so it takes over when the MBC starts to fade.
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Old 11-08-2009, 03:50 AM   #200
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Ride--got a question. 2008 sti stage 2 accessport protuned. I love ptfb! If my cl-ol is zeroed out, is ptfb still harmful to engine? Also do most tuners zero this out when they tune? Lastly, can I use an mbc with an accessport? Thanks. odin
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