Boost Creep?
#1
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Boost Creep?
My Setup up:
AFI Front Facing Exhaust Manifold
PTE 6766 A/R .68
1x Tial 44mm (12 PSI)
I never take the same pressure on my AVC-R with this setup.
AVC-R OFF I always take around 1.02 or 1.12 on my AVC-R screen and I have ever seen 1.38b
Do you think I need to put another Tial 44 W/G or change my boost controller?
thks
AFI Front Facing Exhaust Manifold
PTE 6766 A/R .68
1x Tial 44mm (12 PSI)
I never take the same pressure on my AVC-R with this setup.
AVC-R OFF I always take around 1.02 or 1.12 on my AVC-R screen and I have ever seen 1.38b
Do you think I need to put another Tial 44 W/G or change my boost controller?
thks
#3
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Re: Boost Creep?
I remember that you told me that point on this thread
https://honda-tech.com/forums/drag-racing-36/my-eg-drag-car-3075732/
I cannot add another tial like that I need to change or modify the Exhaust manifold.
I connected the Tial W/G with the port above,
like this
perhaps I need to use the 2 ports first?
https://honda-tech.com/forums/drag-racing-36/my-eg-drag-car-3075732/
I cannot add another tial like that I need to change or modify the Exhaust manifold.
I connected the Tial W/G with the port above,
like this
perhaps I need to use the 2 ports first?
Last edited by Steeve_Civic; 12-06-2012 at 10:11 PM.
#4
Re: Boost Creep?
Hook up the wastegate directly without the boost controller and see what boost level you are hitting. If you are still too high then your only choice is to cut and weld a new wastegate port. This is not uncommon for a lot of setups depending on the turbo/engine combination. For 60+mm setups I almost always recommend dual 38/mvs wastegates right off the bat to eliminate this risk on a street car.
#5
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Re: Boost Creep?
it probably doesn't help that your wastegate angle is in the opposite direction of the exhaust flow. i could be wrong but that is what it looks like in the picture.
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Re: Boost Creep?
Air is lazy and goes the path of least resistance.
If the car is pretty responsive on boost response you can go up in a/r on the turbine side and that will help your boost control with what you have now.
http://www.turbosmart.com.au/wp-cont...1/10/5530.jpeg Here is a link of proper w.g. location.
Last edited by turbodano; 12-07-2012 at 07:33 AM. Reason: added link
#7
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Re: Boost Creep?
I think you are right about the W/G angle.
I'm going to ask AFI turbo about this problem.
First I 'm going to hook the W/G directly.
Thks
I'm going to ask AFI turbo about this problem.
First I 'm going to hook the W/G directly.
Thks
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Re: Boost Creep?
AFI told me to put a lower spring inside like 5 PSI?
I will try this week
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Re: Boost Creep?
I've seen people with creep on divided manifolds running twin tials use 3lb springs to eliminate creep. They seem to be able to get 25psi out of those springs with an ECU controlled boost controller... however every setup is different.
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Re: Boost Creep?
There is nothing Wrong with the Angle at all, other then the Top lies on the Damn Runner! I would look more at your plumbing first...
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Re: Boost Creep?
Just done some tests tonight.
5000 RPM to 7500 RPM I have 14 PSI and past 7500 to 8400 RPM it goes up to boost cut @22PSI.
I tried to connect directly the W/G to the Turbo and same problem.
I will try with lower spring and after I will add a W/G...
5000 RPM to 7500 RPM I have 14 PSI and past 7500 to 8400 RPM it goes up to boost cut @22PSI.
I tried to connect directly the W/G to the Turbo and same problem.
I will try with lower spring and after I will add a W/G...
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Re: Boost Creep?
Have you checked for leaks on your wastegate? Buy a vacum pump, or a compressor and check it for any leaks before you rip apart your setup.
It doesn't matter if its new double check, its the easy route.
I'm not suprised no one in here mentioned it.
It doesn't matter if its new double check, its the easy route.
I'm not suprised no one in here mentioned it.