twin turbo problems
03-28-11, 07:51 PM
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twin turbo problems
Hi folks, sadly I think I have a problem with one of my turbos.
I was overtaking, was in 3rd and was jst coming into th 2nd stage turbo when the car choked a bit. Now when ever th first turbo kicks in its makin a funny whaling sound and doesn't seem to be the power there once was. Have any of you got an idea what the problem may be? I hoping its not as serious as blown th turbo
I was overtaking, was in 3rd and was jst coming into th 2nd stage turbo when the car choked a bit. Now when ever th first turbo kicks in its makin a funny whaling sound and doesn't seem to be the power there once was. Have any of you got an idea what the problem may be? I hoping its not as serious as blown th turbo
03-28-11, 08:06 PM
#3
Hi folks, sadly I think I have a problem with one of my turbos.
I was overtaking, was in 3rd and was jst coming into th 2nd stage turbo when the car choked a bit. Now when ever th first turbo kicks in its makin a funny whaling sound and doesn't seem to be the power there once was. Have any of you got an idea what the problem may be? I hoping its not as serious as blown th turbo
I was overtaking, was in 3rd and was jst coming into th 2nd stage turbo when the car choked a bit. Now when ever th first turbo kicks in its makin a funny whaling sound and doesn't seem to be the power there once was. Have any of you got an idea what the problem may be? I hoping its not as serious as blown th turbo
The charge control actuator was always in open position so the boost of the primary turbo escape into the secondary turbo and charge relief valve.
Good luck
Eric
03-28-11, 08:09 PM
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yea i've jst read on a website about th vaccum hoses etc. i will have a look in the morning see if there is anything obvious. if it is the solenoid, where is it located and how was it fixed??
03-28-11, 09:03 PM
#5
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when the first turbo creates pressure the charge control valve closes and seals the turbos from eachother. when the second turbo spools up it equalizes both sides of the actuator and reopens the valve, if the valve leaks the pressure from the first turbo will go into the second turbo and they will fight eachother. I have a leaking valve in my garage so i made a quick video for you. The charge control valve is part of the Y pipe that comes off the top of the turbos.
http://www.youtube.com/watch?v=AlTGf7ND2hE
http://www.youtube.com/watch?v=AlTGf7ND2hE
03-29-11, 08:20 AM
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thanks for the video was very helpful.
I just took the car out again to see what was happening. i kept an eye on the boost gauge, looks like i am getting the correct boost, around 0.8? i went right throught the gear and right through the revs, the whailing noise seems to appear as it interchange between the 2 turbos occur, around 4000rpm range. the car also choked once again around 4800/5000 in 5th gear
I just took the car out again to see what was happening. i kept an eye on the boost gauge, looks like i am getting the correct boost, around 0.8? i went right throught the gear and right through the revs, the whailing noise seems to appear as it interchange between the 2 turbos occur, around 4000rpm range. the car also choked once again around 4800/5000 in 5th gear
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