Baby Got (boost) Back!
#1
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Baby Got (boost) Back!
Solved my boost problem!
With my setup 100hp (ATS) injectors, Drag/Custom Comp, PDR hx40, and ats Manifold.
For about the last 6 months I have noticed a drop in boost pressure that has kept getting worse.
Originally I was hitting 39-38 psi with my PDR 40/16.
Lately I checked my turbo (when I installed my O ringed head).
It was in excellent shape and spun like it was still new and had no play.
Also mid throttle boost was long to come up and somewhat sluggish.
I also checked my boost gauge line, it was fine.
I check all my intercooler boots, all looked good, plus I went ahead and tightened them up a bit.
So I figure what the hell, I install a restrictive wastegate elbow that I had laying around.
I did, and the results are great!!
The mid throttle responsiveness is back, I can easily hit 24 psi now with my Edge box OFF.
Before I was lucky to hit 20 psi.
On a WOT throttle run over 100mph I was able to hit 40psi and maintain it, before it was 31psi.
On a run in WOT with OD cancelled I hit 43psi, this turbo really sings now!!
I know over 40 is dangerous, so this weekend if I dyno I might just have to put the open elbow back on.
So is the wastegate actuator worn out??
--Justin
With my setup 100hp (ATS) injectors, Drag/Custom Comp, PDR hx40, and ats Manifold.
For about the last 6 months I have noticed a drop in boost pressure that has kept getting worse.
Originally I was hitting 39-38 psi with my PDR 40/16.
Lately I checked my turbo (when I installed my O ringed head).
It was in excellent shape and spun like it was still new and had no play.
Also mid throttle boost was long to come up and somewhat sluggish.
I also checked my boost gauge line, it was fine.
I check all my intercooler boots, all looked good, plus I went ahead and tightened them up a bit.
So I figure what the hell, I install a restrictive wastegate elbow that I had laying around.
I did, and the results are great!!
The mid throttle responsiveness is back, I can easily hit 24 psi now with my Edge box OFF.
Before I was lucky to hit 20 psi.
On a WOT throttle run over 100mph I was able to hit 40psi and maintain it, before it was 31psi.
On a run in WOT with OD cancelled I hit 43psi, this turbo really sings now!!
I know over 40 is dangerous, so this weekend if I dyno I might just have to put the open elbow back on.
So is the wastegate actuator worn out??
--Justin
#3
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Re:Baby Got (boost) Back!
I had the stock free-flowing elbow that PDR supplies with their HX40 turbo.
Piers sets his wastegates to open at 38-40 psi.
What I think is that the wastegate actuator began to wear out, and was opening prematurely.
The elbow I have installed now is the brass unit that Edge and other fueling box manufacturers supply with their fueling boxes to delay the opening of the stock set/factory wastegate.
--Justin
Piers sets his wastegates to open at 38-40 psi.
What I think is that the wastegate actuator began to wear out, and was opening prematurely.
The elbow I have installed now is the brass unit that Edge and other fueling box manufacturers supply with their fueling boxes to delay the opening of the stock set/factory wastegate.
--Justin
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Location: Milford, Kentucky
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Re:Baby Got (boost) Back!
My problem is different. My boost numbers are getting higher. I still have the HX 35 and usually it hits 36 psi with no problems. Lately,
it has been hitting 42 to 44psi. What would cause this??????????????
it has been hitting 42 to 44psi. What would cause this??????????????
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