How do you guys have your externalwastegate?
03-02-2003, 12:54 PM
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How do you guys have your externalwastegate?
I mean the vacume hose do you guys connect it to the vacume or the boost port.
Pictures would help. And why would use one instead of the other.
Pictures would help. And why would use one instead of the other.
03-02-2003, 02:40 PM
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Re: How do you guys have your externalwastegate? (Therumblingteg)
My boost port is connected to my compressor housing, my vacuum port is conencted to my EBC. If you don't have a boost controller, you leave the vacuum port open and connect the boost port to either manifold pressure, or anywhere between the compressor and the t/b. Pretty much anywhere where it will see boost. Connecting closer to the compressor wll open the w/g sooner, which may cause you to "see" boost levels that are lower than what your w/g spring is rated for. That's mostly due to pressure drop thru the i/c and charge piping. If you connect it to manifold pressure, the w/g won't open until the pressure in the manifold is up to whatever the rating of the spring is.
03-02-2003, 03:54 PM
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Re: How do you guys have your externalwastegate? (MiraiZ)
i hooked up my wastegate to the brake booster.(the side of the wastegate which says boost). is that right?
03-02-2003, 06:34 PM
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Re: How do you guys have your externalwastegate? (inspyral)
if thats true you just solve my problem thanks. so i should tap mine right before my intake manifold? sorry for putting my problem on this thread.
03-02-2003, 07:23 PM
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Re: How do you guys have your externalwastegate? (W.ZeroB18C1T)
>>so i should tap mine right before my intake manifold? sorry for putting my problem on this thread<<
That's what we're here for!
I used to have my WG tapped close to the compressor. On a hunch (and seeing the way most factory turbo'd cars are done) I connected the WG vacuum line to the intake manifold (after the throttle body). Performance has improved *significantly*, while boost has remained "virtually" the same. I say "virtually" because now I stay at a steady 7 psi all the way up the rev band rather than falling to about 5 psi at redline. Also, if the WG vacuum line is routed pre-throttle body, then it's probably popping open every time you hear your blow off valve...
edit: to put it simply, I routed my WG vacuum line to the same location as the blow off valve vacuum line.
edit #2:
I didn't read Insyral's post completely. He explained it pretty well too.
[Modified by fsp31, 4:24 AM 3/3/2003]
[Modified by fsp31, 4:26 AM 3/3/2003]
That's what we're here for!
I used to have my WG tapped close to the compressor. On a hunch (and seeing the way most factory turbo'd cars are done) I connected the WG vacuum line to the intake manifold (after the throttle body). Performance has improved *significantly*, while boost has remained "virtually" the same. I say "virtually" because now I stay at a steady 7 psi all the way up the rev band rather than falling to about 5 psi at redline. Also, if the WG vacuum line is routed pre-throttle body, then it's probably popping open every time you hear your blow off valve...
edit: to put it simply, I routed my WG vacuum line to the same location as the blow off valve vacuum line.
edit #2:
I didn't read Insyral's post completely. He explained it pretty well too.[Modified by fsp31, 4:24 AM 3/3/2003]
[Modified by fsp31, 4:26 AM 3/3/2003]
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