Mikhail
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« Reply #120 on: June 15, 2017, 05:31:03 AM »
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I'm wondering would 1bar wg spring be ok? Wg is namely 50mm but the valve hole is 46mm. So at the car with exhaust pressure the boost would probably be around 0.5...0.7bar with the spring only? The turbo is garrett gt3582r hf with 1.06 ar. Now 3.2 vr6 guys thoughts about this.
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Jim_Coupe
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« Reply #121 on: June 15, 2017, 10:46:34 AM »
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I'm wondering would 1bar wg spring be ok? Wg is namely 50mm but the valve hole is 46mm. So at the car with exhaust pressure the boost would probably be around 0.5...0.7bar with the spring only? The turbo is garrett gt3582r hf with 1.06 ar. Now 3.2 vr6 guys thoughts about this.
Im runing a similar setup.. But TIAL 38mm |
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E85oholic
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Mikhail
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« Reply #122 on: June 17, 2017, 10:32:59 AM »
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Though should not have boost creep.
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nubcake
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« Reply #123 on: June 17, 2017, 06:52:05 PM »
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Though should not have boost creep.
Uhhh, how do first 4 cyls get vented? |
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Carsinc
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« Reply #124 on: June 17, 2017, 11:04:47 PM »
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There is no way in hell that wastegate stays on that manifold, that is going to crack.
There is noooo way to weld to shitty cast and get a positive lasting result.
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rogerius
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« Reply #125 on: June 17, 2017, 11:24:09 PM »
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Uhhh, how do first 4 cyls get vented?
If space permits, I would add an adapter between manifold and turbo (flange+short pipe +flange), on which the WG should TEE in. |
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Mikhail
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« Reply #126 on: June 18, 2017, 08:38:19 AM »
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There is no way in hell that wastegate stays on that manifold, that is going to crack.
There is noooo way to weld to shitty cast and get a positive lasting result.
I tested how easily this cast cracks when I made the hole for the wg. It did not crack but bends, had luck to get this manifold. Welds did not crack. Should last. |
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Carsinc
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« Reply #127 on: June 18, 2017, 08:46:15 AM »
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Or weld a wastegate directly to the turbo... but the truth is this most vr6 turbos get away with
terrible wastegate placement because they run low boost and small turbos.
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Mikhail
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« Reply #128 on: June 18, 2017, 10:24:41 AM »
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Or weld a wastegate directly to the turbo... but the truth is this most vr6 turbos get away with
terrible wastegate placement because they run low boost and small turbos.
This is log style manifold. |
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Jim_Coupe
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« Reply #129 on: June 19, 2017, 05:51:43 AM »
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I run similar as i said no problems as long as you run low boost up to 1bar.. I have a GTX3581R with no boost creep with 38mm TIAL WG.. But a friend thested a "pulse split" mainfold recently and it held as expected more boost towards redline @6700rpm.. With the manifold u have it gives more torque at lower rpms and build boost more quickly. The boost taper off quick as well.. But when running 3.2L thats not often an issue  .. I welded my LSUs into this manifold and it suprised me that the welds havent cracked after 2yrs now.. |
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« Last Edit: June 19, 2017, 05:54:41 AM by Jim_Coupe »
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E85oholic
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gt-innovation
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« Reply #130 on: June 19, 2017, 08:23:00 AM »
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I run similar as i said no problems as long as you run low boost up to 1bar.. I have a GTX3581R with no boost creep with 38mm TIAL WG.. But a friend thested a "pulse split" mainfold recently and it held as expected more boost towards redline @6700rpm.. With the manifold u have it gives more torque at lower rpms and build boost more quickly. The boost taper off quick as well.. But when running 3.2L thats not often an issue .. I welded my LSUs into this manifold and it suprised me that the welds havent cracked after 2yrs now.. If welded correctly there is no issue as by default those are stainless steel ones(Rothe)...At least mine is.I have seen cracked ones though being sold here in Germany but were already 4 - 5 years used on such engines. |
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Mikhail
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« Reply #131 on: June 29, 2017, 12:59:41 AM »
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Does e85 winter and summer blends have how much knock resistance difference? Went logging and maybe had bad fuel because retards that much. I have 16 decrees anvance at redline and retards 5 decrees of that. Lambda 0.8. Bropaply the e85 is old crap here because no one uses it.
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Mikhail
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« Reply #132 on: July 01, 2017, 10:04:12 AM »
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I tested that how would work boost up at launch by KFDZWKG. I changed lambas to driving speed and changed the table so that stationary gives severe retard and when the speed rises the retard ends. Otherwise plays good but the speed input loops over meaning when the speed rises the retard goes on again. Maybe changing the lookup function could help?
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Jim_Coupe
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« Reply #133 on: July 02, 2017, 02:04:20 PM »
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I tested that how would work boost up at launch by KFDZWKG. I changed lambas to driving speed and changed the table so that stationary gives severe retard and when the speed rises the retard ends. Otherwise plays good but the speed input loops over meaning when the speed rises the retard goes on again. Maybe changing the lookup function could help?
Where do u live? E85 can be diffrent in other countries.... I have never got ant knock ever from E85... In some way it scares the shit out of me.. Im now boosting 1.4bar on stock compression and E85 |
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E85oholic
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Mikhail
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« Reply #134 on: July 02, 2017, 09:33:10 PM »
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Where do u live? E85 can be diffrent in other countries.... I have never got ant knock ever from E85... In some way it scares the shit out of me.. Im now boosting 1.4bar on stock compression and E85
Your car has to be mind blowing fast  How much you have ignition advance? I have now only wg spring pressure 0.65bar and the car goes 80-120km/h to 2 seconds which is few years old gtr and 911 turbo territory. I live your East neighbor. Yes I suspect that this tank of e85 was a winter blend and might of been pretty high portion of low octane gasoline. |
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