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Old 10-28-2006, 04:04 PM   #126
disque71
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just ordered mine with pigtail from rockauto.com

search the non-java based catalog to find the parts

ACDELCO solenoid part # 214474(notes GM part number 1997152)
ACDELCO ABS modulator pigtale part # PT374 (notes GM part number 12102747)

used this discount code: 508020134918
for 5% off purchase

both parts were $29 shipped. this should be good to save you $20 compared to acdelco, gmpartsdirect etc.
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Old 10-28-2006, 04:40 PM   #127
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So after reading the whole post no one really responded as to whether or not the gm solenoid can be tuned with ecutek? I have a version 7 ecu and will be doing the ecutek soon, my stock bcs is fluctuating like crazy and rather than replace with an oem unit I want the 3 way function to avoid any pressure seeing the wastegate until the em says so!

... So any ecutek users with the GM solenoid??
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Old 10-28-2006, 06:43 PM   #128
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The stock ecu can be tuned for it. If your tuner is too lazy to tune it, then well.....

TMS
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Old 11-08-2006, 03:12 PM   #129
jamesfacts
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Are there any ecuflash/enginuity users running the GM BCS?
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Old 11-08-2006, 03:32 PM   #130
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Quote:
Originally Posted by americanyouth View Post
Are there any ecuflash/enginuity users running the GM BCS?
I have tuned a GT35, Blow through MAF, EWG with a GM BCS with enginuity. IMO the stock ECU + interupt style BCS is better than anything else you can buy for less than ~$5000.

TMS
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Old 11-08-2006, 04:13 PM   #131
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Quote:
Originally Posted by americanyouth View Post
Are there any ecuflash/enginuity users running the GM BCS?
I will be Friday, installing vf39, pinks, tmic, gm bcs etc.

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Old 11-09-2006, 12:08 PM   #132
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Quote:
Originally Posted by TheMadScientist View Post
I have tuned a GT35, Blow through MAF, EWG with a GM BCS with enginuity. IMO the stock ECU + interupt style BCS is better than anything else you can buy for less than ~$5000.

TMS
Cool, thats great to know. Looks like its time for me to pick up the GM solenoid and experiment... too bad that NESIC tuners meet never got off the ground.
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Old 11-15-2006, 12:09 AM   #133
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I have used the stock ECU via Openecu tools and the GM solenoid. I switched over to an ARO solenoid from Grainger, though.
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Old 11-15-2006, 12:24 AM   #134
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Quote:
Originally Posted by Freon View Post
I have used the stock ECU via Openecu tools and the GM solenoid. I switched over to an ARO solenoid from Grainger, though.
how do you like the ARO vs GM?
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Old 11-15-2006, 12:54 AM   #135
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whats the advantages of this mod?
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Old 11-15-2006, 03:01 AM   #136
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Read the first post. You really are out of your mind to ask such a "flame me, please!" post.
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Old 11-16-2006, 10:39 AM   #137
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I went to an ARO valve because I wanted to experiment with a 4 port. I really don't think it matters, though they do react differently. It is hard for me to directly compare since I switched turbos about the same time. Maybe I'll plug the GM part back in and compare. I'm using the ARO as a 3 port now anyway.
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Old 12-03-2006, 10:52 PM   #138
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so i saw from here that you don't need the pigtail connectors. How do you wire up the thing without them?
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Old 12-04-2006, 12:45 AM   #139
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You would just solder some wire to the pins (or into the female connectors - can't remember the connection at the solenoid) of the solenoid, and then solder the other ends of them to your existing BCS wires. Same as what you'd do with a pigtail, but you don't get the ease of connection to the solenoid.

EDIT: After looking at the pics in the first post, it looks like the solenoid has male connectors. So yeah, you solder wire to those, and solder the other ends of the wires to your BCS wires. Ta-da! You just saved yourself $16.

Or you could just cut your existing BCS wires and solder them to the new solenoid to cut down on the soldering.
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Old 12-04-2006, 12:55 AM   #140
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thats what i thought. thanks. i think ill spend the extra $15 and get the plug.
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Old 12-05-2006, 04:27 PM   #141
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installed my bcs yesterday and ened up wit .5 bar after i realized a forgot my mbc it was all good. running 1.2 bar on stock turbine. oh. and if anyone is running a unichip it wont work i had to remove itmaybe ill let the ecu learn for a lil and try to reinstall it to see what happens
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Old 12-19-2006, 05:31 PM   #142
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I have ventured to some of the other car things but have no clue about the soldering that you guys did. How did you do this and what did you do it with? Thanks!
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Old 12-22-2006, 08:49 PM   #143
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has anyone tried running this with vacuum tubing that has the same diameter as the one that runs to the intake? i currently have standard vacuum tubing, but was thinking of going with a smaller diameter.
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Old 01-12-2007, 09:18 PM   #144
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Help with GM three port! Maxed out WG duty cycle on a protune. 90% was needed to achieve 22psi. Just for reference I have a SZ49 STI. The stock denso unit only needed 40% @ 20psi. Any thoughts?
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Old 01-13-2007, 02:09 AM   #145
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Quote:
Originally Posted by disque71 View Post
has anyone tried running this with vacuum tubing that has the same diameter as the one that runs to the intake? i currently have standard vacuum tubing, but was thinking of going with a smaller diameter.
im using the same diameter lines that connect to the turbo (with the stock pill), then use an adapter to pump it up to the hose that the intake uses. Same adapter is used to go from the compressor to my external wastegate (running it 2 port until i can tune it). Im confused when you say smaller diameter, what hoses are you running now? anything bigger then the hose im using and it wont fit on solenoid.
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Old 01-17-2007, 11:14 AM   #146
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Looks like I'll be replacing the stock BCS with the GM one. I'm hitting a wall where I get up to 19psi on a stock turbo in mid range but even if I close the WG completely, according to the map at least, I cannot get past the 19psi mark. Checked everything and I am certain I have no leaks. I modified my BPV as originally I suspected that it was cracking open at this pressure. It did not make a difference. I think the problem lies in the bleed setup. My theory is that the stock unit can't keep up anymore at this pressure and just can't bleed enough air away from the WG to keep it closed. So, even at WOT, my WG is partially open and 18 to 19psi is the ceiling. If anybody has any thoughts on my speculation, feel free to chime in.
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Old 01-17-2007, 11:20 AM   #147
KAX
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in order to get past 18~20 psi, you need to change out the restrictor pill to a different size. I had to do that when I installed my VF22 because I planned on running more then 20 psi.

a GM solenoid will definitely fix it as well though.
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Old 01-17-2007, 12:38 PM   #148
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Quote:
Originally Posted by KAX View Post
in order to get past 18~20 psi, you need to change out the restrictor pill to a different size. I had to do that when I installed my VF22 because I planned on running more then 20 psi.

a GM solenoid will definitely fix it as well though.
Could I just remove it, given that I still have it? I should be able to tune the WGDCs to accomodate for the lack of the pill, correct? If so, I suspect I'd have to lower my wastegate duty cycles since I would be bleeding more now that the pill is gone. That would result in different actual wastegate position given the same dialed in percentage in the map. Right?

But then, why bother. I might as well just replace it with the GM unit and do the tuning. I will be doing it anyways so I think I can just wait. Or, I could just do this in the spirit of academic pursuit
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Old 01-24-2007, 04:28 PM   #149
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Well, I got around to installing the BCS last weekend. My impressions: WOW! This this is awesome. Total and complete control over boost with amazing accuracy. It just works so much better than the stock unit. I could not go beyond 18psi with the stocker and once I swapped it for the GM unit, I hit my target of 21psi no problem.

I do not hear any ticking. I did reuse the rubber gasket that the stock unit was mounted on. I suspect that people that complain about the noise are just mounting the solenoid straight to the body. It might explain the loud noises. No sounds here other than awesome turbo spool

This is the best $29 I ever spent on this car.
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Old 01-24-2007, 04:33 PM   #150
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Quote:
Originally Posted by Ziggyrama View Post

This is the best $29 I ever spent on this car.
Thats only 'cause you got a great deal on the pigtail!
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