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Old 04-16-2002, 11:17 PM   #1
Stranger
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Default How to turn of the turbo

I have an ASR turbo - I need to disable it for a little while.
How?
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Old 04-16-2002, 11:25 PM   #2
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I'm thinking there is no way to "bypass" it. You'll have to probably remove the up pipe, downpipe, and replace it with the factory exhaust manifold. And probably take the turbo and intercooler out as well.
I'm not 100% sure though, seeing as how I'm just learning about turbocharging.
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Old 04-16-2002, 11:29 PM   #3
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Just go straight from the filter to the throttle body. The turbo will still spin, but not produce boost going into the engine.
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Old 04-16-2002, 11:39 PM   #4
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Ok. another question:
if I block the vacum line that goes to westgate (I'm not sure what the thing is called) will that stop turbo from activating?
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Old 04-16-2002, 11:58 PM   #5
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It's late and I'm not thinking quite clearly but I think if you block the vac line going to the wastegate the turbo will be constantly on meaning MAD overboost at high RPMs. Depending on the type of wastegate you could also just open the thing so all exhaust is bypassed. Otherwise get some silicone ducting and run it directly between the filter and the TB. You'll notice a little loss of performance (less than the NA even) because of the turbo slowing air going into the engine if you open the wastegate. Not a big deal though.

~Garrett
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Old 04-17-2002, 01:36 AM   #6
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If you block off the hose to the waste gate it will try to get the turbo to full boost because the waste gate is not bypassing the exhaust to the turbo, this might over heat the turbo. But I think even if you disconnect.

Quote:
Otherwise get some silicone ducting and run it directly between the filter and the TB.
If you do this, it will be like blocking the waste gate hose. because the line to the waste gate is showing no boost so it directs exhaust to the turbo.

I think the only way is to get the waste gate open by removing the spring and the valve in there or some how apply pressure to that line and make it hold in there.
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Old 04-17-2002, 01:44 AM   #7
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Why would you want to do this?

That is like asking, "how do I make the toilet not flush after using it..."
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Old 04-17-2002, 02:26 AM   #8
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Well, I might have to remove my system every two years for emission testing. The people who does the driving here are crazy.. I'm sure they'll blow up my car with the turbo in, or I might not even pass the test.
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Old 04-17-2002, 09:37 AM   #9
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well, you could shut the car off...that disables it!

Short of removing it fromt he system, there is no way to disbale the turbo, unless you put in a super low spring to your wastegate, and run it at the lowest possible boost.

What type of emissions testing do they have in Canada...dyno? road use?
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Old 04-17-2002, 11:05 AM   #10
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Quote:
Originally posted by Z1 Performance
well, you could shut the car off...that disables it!

Short of removing it fromt he system, there is no way to disbale the turbo, unless you put in a super low spring to your wastegate, and run it at the lowest possible boost.

What type of emissions testing do they have in Canada...dyno? road use?
In Vancouver we use 4 wheel dyno.
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Old 04-17-2002, 03:01 PM   #11
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I need to take the turbo off (eventualy) 'cause there is some work that will need to get done on my trany, but with the turbo there they are not allowed to touch it.
but I couldn't take it off my self ('cause the bolt are so hard) so I want to go to have some shop just loosen them up for me.
problem is that there are oil lines running to the turbo, wich I need to block, so idealy I wanted to:
disable it
block oil lines
remove it
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Old 04-17-2002, 08:42 PM   #12
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what about if he took his BOV off and had an intake leak would that work? put a breather ilter on over where it used to be and you should be set.

Unless you have a MAF then just run a tube to the front of the turbo w/ no BOV.

Brad
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Old 04-17-2002, 08:56 PM   #13
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Quote:
Originally posted by STiTuner
what about if he took his BOV off and had an intake leak would that work? put a breather ilter on over where it used to be and you should be set.

Brad
Again the wastegate will see not enough boost and try to create more boost by diverting exhaust to the turbo.
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Old 04-17-2002, 10:22 PM   #14
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is it an external wastegate or an interal actuator?

cause if its an actuator you can un hook the wastegate spring from the little flap that opens up and it will alwasy bypass it.. maybe causing a LITTLE boost but not much.

or if its a external wastegate try just taking the spring out.

Brad
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Old 04-17-2002, 10:34 PM   #15
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(It's external waste gate)

Ok turbo has been removed:

Do you need to block the vacum lines going to:
waste gate
blow off valve


Also, my cesnors got velded to the exast.
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Old 04-17-2002, 10:36 PM   #16
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Also:
I have a "split second" timing controler
what should I set it to when the car has to turbo?
should it be all 0s?


Thank you guys!!!
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Old 04-17-2002, 11:09 PM   #17
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Quote:
Originally posted by Stranger
(It's external waste gate)

Ok turbo has been removed:

Do you need to block the vacum lines going to:
waste gate
blow off valve


Also, my cesnors got velded to the exast.
You would need to block off the vacuum line going to the waste gate and the blow off valve or you'll have a air leak and the car would run bad.
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Old 04-18-2002, 03:14 AM   #18
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Thanx Alv.
I will do that.

damn. taking off the turbo is a pain in the butt.

+ I figured out why I have/had some problems with it.
the up pipe is cracked.

anyways, trany work within next few weeks and back to puting it back together.

BTW anyone knows if you can get your smog inspect. done earlyer then you have to?

it would be so convinient for me.
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Old 04-18-2002, 04:35 AM   #19
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I don't see why you can't get it done at any time. After all its your $$$. I am sure it will only be good for the year after the actual test or whatever interval your emissions testing is at, not one year form the date you had to get it done
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