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10-19-2008, 09:09 PM | #151 |
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Great thread guys. Shamoo from iwsti pointed this to me.
Ive got a grainger 3-port and a tial f38 prepared to go on my STI and am going to ask my tuner to look into adding the hallman and doing this. Is there a consensus as to the best setup on the EWG? (just bottom port OR bottom + top)? Here's my grainger by the way (never mind my own #'s):
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10-20-2008, 12:52 PM | #152 |
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11-12-2008, 03:18 PM | #153 |
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Iwas running this setup a while ago but took it off to do some stock ECU tuning. I switched back to my UTEC and decided that I wanted to put the hybrid setup back on.
Interesting thing to note for me. When using closed loop boost control in the UTEC, with my boost set to '1' in all TPS and RPM columns I would still hit 19psi. I switched to Open loop and at 1% duty I am at 13.5 psi which is a little greater than wastegate pressure. I dont know why the closed loop was acting like that but looks like Ill be using open loop for part throttle. Last edited by PolarisSnT; 11-12-2008 at 03:34 PM. |
11-26-2008, 01:37 AM | #154 |
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I just switched over to this setup on my car. This setup is awesome! I haven't started tuning for spool yet but this has gotten rid of my boost spikes. I have the MBC set to 1psi below my ECU tune of 20psi and its solid at 19/19.5 psi in 4th and 5th! I love it and I'm sure my engine loves it. =) Next I will try to make the turbo spool faster with more WGDC down low.
Everyone should be using a 3-port along with the MBC! The MBC and the EBC keep each other in check in the event one fails. It's awesome. I'm not sure its wise to just run crazy values like 100 wgdc through the WOT column and unrealistic boost targets though. If the MBC failed or if someone gave your MBC a few turns without you knowing, you could blow your engine. |
11-26-2008, 01:43 AM | #155 |
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This is true. When I was tuning the MBC I was at 15PSI to redline, my car actually knocked in that area. I would never had known if it weren't for the MBC.
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11-30-2008, 07:21 AM | #156 |
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Well, I've been using this method since April and am still VERY happy with it. I've been using the lighter spring, which seems to work fine at my current boost level (22psi). What springs are you guys running with your Hallman units? When does it become necessary to switch to the heavy spring? I was thinking of putting my heavy spring in to see how it works for myself, but I freakin lost it. Hallman hasn't replied to my email for a replacement either.
BTW, I'm now rockin a DB Super 16g and lovin it! 21psi at redline makes it a totally different car. Buck |
12-07-2008, 08:44 PM | #157 |
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^^^
bump. Finally got my hallman evo rx. |
12-10-2008, 12:21 PM | #158 | ||
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Quote:
Quote:
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12-10-2008, 12:40 PM | #159 |
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I have been tuning my gm bcs VF39 setup using this hybrid method and it seems that the mbc is controlling the max boost at the moment. I have tried to reduse the WGDC around 3400-3800 and I still hit too much boost. I have taken significant amount of WGDC off but no help. I can only imagine that I have installed it wrong but in the otherhand everything seems to be as it should. Any comments? Is this the way your hybrid boost control setup is working?
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12-13-2008, 09:57 AM | #160 |
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^^^
diagram your setup? |
12-13-2008, 01:23 PM | #161 | |
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Quote:
with 0% wgdc from the ecu/ems you should net wastegate boost pressure, and with 100% you should have MBC boost pressure. |
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01-06-2009, 05:51 AM | #162 | |
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My GM BCS setup is very sensitive, tiny amount of WGDC makes my boost go to the sky. |
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01-06-2009, 12:56 PM | #163 |
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How much does the MBC-only psi vary with temperature? I was just discussing this with a guy at work the other day, he said that might be an issue.
For example, what is the MBC-limited boost at 70 / 50 / 30 degrees F, if you don't make any manual adjustments to it? Thanks! |
01-06-2009, 06:16 PM | #164 |
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with the hallman i do not need to adjust for temperature. it is located where the oem bcs used to be.
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01-07-2009, 08:44 AM | #165 |
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There are small changes with temperature on manual boost controllers. Some are different then others. Generally it's withing half a PSI.
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02-26-2009, 06:01 PM | #166 |
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can someone explain the difference of how blocking off/not blocking off the open port on a 3port bcs will affect things (iwg) with this configuration? perrin's 3port instructions scream not to block that port off and thus i'm hesitant to do so.
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02-27-2009, 01:24 PM | #167 |
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Don't block off the port. That is where pressure from the hose running to the wastegate is released. It won't work properly. You either vta or return to inlet.
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02-27-2009, 01:59 PM | #168 |
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I blocked off the port and it works great for me. For safety reasons though, I suggest you do what everyone else says.
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03-09-2009, 03:36 PM | #169 |
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no ****, this is a sticky?
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03-09-2009, 07:18 PM | #170 |
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This is how a friends car is routed. He is running a utec. on a 2002 wrx. Why is his different and does it accomplish the same task>? |
03-09-2009, 09:39 PM | #171 |
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If that MBC is a bleeder-style (a UTEC usually comes with one), it can produce more boost.
It definitely won't have the response of a ball/spring (restrictor-style) MBC. Peak boost can be the same though. |
03-21-2009, 09:05 PM | #172 |
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Alright, so what do i connect to what? (wow this came out kinda nuts)
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03-22-2009, 06:38 PM | #173 |
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^^^^ bump it
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03-22-2009, 11:59 PM | #174 |
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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
Last edited by eminehart; 03-23-2009 at 01:34 AM. |
03-23-2009, 01:52 AM | #175 | |
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Quote:
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. |
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