Where do you turbo guys pick up the signal for your wastegates? Compressor outlet, after IC(before TB), after TB? I know a little bit on the subject(some pros and cons of the locations), whats your take?
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Patrick Scott
Yeah, thats a roll cage in there.
I shall call him...Mini-Me
Last edited by PatScottAKA99XE : Jun 11th, 2002 at 09:10 PM.
Originally posted by PatScottAKA99XE Where do you turbo guys pick up the signal for your wastegates? Compressor outlet, after IC(before TB), after TB? I know a little bit on the subject(some pros and cons of the locations), whats your take?
The bst place for the snappyest response is as far away form the turbo as posible, which means the manifold plenum.
Hey Mike, what exactly do you mean by snappiest response? Right now, I have both my wastegate and boost gauge from before the throttle body, after the IC. According to the gauge, the boost is spiking pretty high (10 psi) in 1st gear and will spike up to 8-9 in 2nd, etc. This is running a DET t25 with the stock wastegate and actuator. I was thinking that if I got the wastegate signal closer to the turbo, it would catch the pressure build up faster and keep it from spiking. It's actually about as far as you can get without being from the manifold plenum but I was going to move some of the vacuum lines around.... thanks for the tips!
Originally posted by PatScottAKA99XE Mike, If I go to the plenum will I get boost-spike induced heat? If so, will it be very much heat or would it be nothing to worry about?
No don't worry, I take the signal by teeing into the fuel pressure regulator line.
Originally posted by spdracerUT Hey Mike, what exactly do you mean by snappiest response? Right now, I have both my wastegate and boost gauge from before the throttle body, after the IC. According to the gauge, the boost is spiking pretty high (10 psi) in 1st gear and will spike up to 8-9 in 2nd, etc. This is running a DET t25 with the stock wastegate and actuator. I was thinking that if I got the wastegate signal closer to the turbo, it would catch the pressure build up faster and keep it from spiking. It's actually about as far as you can get without being from the manifold plenum but I was going to move some of the vacuum lines around.... thanks for the tips!
Khiem
You will notice a more laggy soggy feel if you locate it in your compressor housing.
Mike, even though you said not to worry about it I am curious about these things. Could you give me a precentage of boost spike that one would see with the signal from the plenum as compared to the compressor housing. I know there are probly alot of variables between different setups(IC,pipes, ect), but when the gears in my head start turning on something, even a monkey wrench wont stop them.(unless you hit my head with it)
__________________
Patrick Scott
Yeah, thats a roll cage in there.
I shall call him...Mini-Me
Originally posted by PatScottAKA99XE Mike, even though you said not to worry about it I am curious about these things. Could you give me a precentage of boost spike that one would see with the signal from the plenum as compared to the compressor housing. I know there are probly alot of variables between different setups(IC,pipes, ect), but when the gears in my head start turning on something, even a monkey wrench wont stop them.(unless you hit my head with it)
The boost would not spike any more than would be worth doing anything about
Your thoughts on wastegate signal location.
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