Boost Problem theory
#1
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Boost Problem theory
Hi All,
After do some searching on Boost problems here, I am thingking that I need to replace my Turbo control actuator & my change control valve. I am getting no boost at WOT in any gear. I get 10psi when not under heavy load with the first turbo, but it usually drops to nothing when shifting gears & I get this awful sound that I can't even describe. Boost drops right off when I get to 45K rpm & doesn't come back.
I just had the hose jobs done at BPR, and while I would have this problem only slightly before then, it is much more pronounced now.
so how's my logic? Any onter ideas besides going single or non-seq? Thanks in advance for the help.
ME.
check sig for mods.
After do some searching on Boost problems here, I am thingking that I need to replace my Turbo control actuator & my change control valve. I am getting no boost at WOT in any gear. I get 10psi when not under heavy load with the first turbo, but it usually drops to nothing when shifting gears & I get this awful sound that I can't even describe. Boost drops right off when I get to 45K rpm & doesn't come back.
I just had the hose jobs done at BPR, and while I would have this problem only slightly before then, it is much more pronounced now.
so how's my logic? Any onter ideas besides going single or non-seq? Thanks in advance for the help.
ME.
check sig for mods.
#2
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Doesn't appear that sig showed up, so here are the mods:
M2 Dp
RE Air Intake
silicone hoses
Catback exhaust ( was on car when I bought it, don't know who makes it).
M2 Dp
RE Air Intake
silicone hoses
Catback exhaust ( was on car when I bought it, don't know who makes it).
#7
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If I start from a dead stop & jump on it, I get no boost at all, but if I rev up slowly, I get 10psi on turbo 1 all the way up to 45K when the CCA tries to kick in turbo 2, then boost drops to zero. If I stay in the throttle, it boost will sometimes come back to ablut 5-7psi, but thats it.
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#8
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Sounds to me like symptoms of TCA or one of the check valves that go with it. It opens, but not as quick as it needs to, so you get a slow build of boost instead of the quick recovery that you're supposed to get.
Have you looked at this page?
http://www.autosportracetech.com/RX-...leshooting.htm
Lots of good info there if you haven't seen it yet.
Have you looked at this page?
http://www.autosportracetech.com/RX-...leshooting.htm
Lots of good info there if you haven't seen it yet.
#9
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Thanks 911, I have seen this document, but will go through it thourghly this weekend. Anyone have any idea how much a Turbo Control Actuator & Charge Control Actuator cost?
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