HELP!! Tuning questions for replacing turbo
05-09-2013, 12:58 PM
#1
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HELP!! Tuning questions for replacing turbo
Hi Guys,
First off im apologize if this has been mentioned somewhere on this forum but i have been searching on here and did not find anything.
SO! long story short, My turbo took a crap and i had to replace to a new stock td04 on my 2002 bugeye wrx. I noticed on this new turbo after installing which only has 30K on it only gives me 6psi at most! A friend stated that i needed to tune my car. Now my million dollar question isss... If i get a cobb ap, Do i still need to tune my car? or will the AP be good enough to get my boost back to normal without having to open source tune it? Please any positive input is Greatly appreciated!!
First off im apologize if this has been mentioned somewhere on this forum but i have been searching on here and did not find anything.
SO! long story short, My turbo took a crap and i had to replace to a new stock td04 on my 2002 bugeye wrx. I noticed on this new turbo after installing which only has 30K on it only gives me 6psi at most! A friend stated that i needed to tune my car. Now my million dollar question isss... If i get a cobb ap, Do i still need to tune my car? or will the AP be good enough to get my boost back to normal without having to open source tune it? Please any positive input is Greatly appreciated!!
15 views.. nothing.. I guess thats a no guys?
05-09-2013, 02:53 PM
#4
Hi Guys,
First off im apologize if this has been mentioned somewhere on this forum but i have been searching on here and did not find anything.
SO! long story short, My turbo took a crap and i had to replace to a new stock td04 on my 2002 bugeye wrx. I noticed on this new turbo after installing which only has 30K on it only gives me 6psi at most! A friend stated that i needed to tune my car. Now my million dollar question isss... If i get a cobb ap, Do i still need to tune my car? or will the AP be good enough to get my boost back to normal without having to open source tune it? Please any positive input is Greatly appreciated!!
First off im apologize if this has been mentioned somewhere on this forum but i have been searching on here and did not find anything.
SO! long story short, My turbo took a crap and i had to replace to a new stock td04 on my 2002 bugeye wrx. I noticed on this new turbo after installing which only has 30K on it only gives me 6psi at most! A friend stated that i needed to tune my car. Now my million dollar question isss... If i get a cobb ap, Do i still need to tune my car? or will the AP be good enough to get my boost back to normal without having to open source tune it? Please any positive input is Greatly appreciated!!
05-09-2013, 02:54 PM
#6
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Hi 02 Thanks for your input! i was thinking that as well but i was thinking if just getting a cobb ap right now to see if it will fix the issue that i have until i get a pro tune. Maybe ill just do the open source tune for now then. Thanks again man!
05-09-2013, 02:59 PM
#8
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Who installed the turbo? What specifically happened to the last one (ie: damage this may have caused). What experience does your friend have? Overlooking hardware issues right off the bat does not bode well. Your app will be moot without functional ware to run it on.
Last edited by de_engineered; 05-09-2013 at 03:01 PM.
05-09-2013, 03:01 PM
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Ok STOP!!!
If you replaced a tdo4 with a td04 you should be fine without a tune.
I am saying because imagine you took your car to suburu for a replacement. They would not tune your car.
I am thinking more along the lines of the restrictor pill was not replaced on the wastegate line causing it to open pre maturely and dumping boost, or a vaccum leak of some kind.
Did you ensure the turbo outlet elbow to the intercooler is tight, and there is no cracks on the inlet or intercooler piping. That stuff becomes brittle and can break when doing a replacement.
Hope that helps, but absolutely positively rule out the need for a tune or AP at this point.
If you replaced a tdo4 with a td04 you should be fine without a tune.
I am saying because imagine you took your car to suburu for a replacement. They would not tune your car.
I am thinking more along the lines of the restrictor pill was not replaced on the wastegate line causing it to open pre maturely and dumping boost, or a vaccum leak of some kind.
Did you ensure the turbo outlet elbow to the intercooler is tight, and there is no cracks on the inlet or intercooler piping. That stuff becomes brittle and can break when doing a replacement.
Hope that helps, but absolutely positively rule out the need for a tune or AP at this point.
05-09-2013, 03:03 PM
#10
Ok STOP!!!
If you replaced a tdo4 with a td04 you should be fine without a tune.
I am saying because imagine you took your car to suburu for a replacement. They would not tune your car.
I am thinking more along the lines of the restrictor pill was not replaced on the wastegate line causing it to open pre maturely and dumping boost, or a vaccum leak of some kind.
Did you ensure the turbo outlet elbow to the intercooler is tight, and there is no cracks on the inlet or intercooler piping. That stuff becomes brittle and can break when doing a replacement.
Hope that helps, but absolutely positively rule out the need for a tune or AP at this point.
If you replaced a tdo4 with a td04 you should be fine without a tune.
I am saying because imagine you took your car to suburu for a replacement. They would not tune your car.
I am thinking more along the lines of the restrictor pill was not replaced on the wastegate line causing it to open pre maturely and dumping boost, or a vaccum leak of some kind.
Did you ensure the turbo outlet elbow to the intercooler is tight, and there is no cracks on the inlet or intercooler piping. That stuff becomes brittle and can break when doing a replacement.
Hope that helps, but absolutely positively rule out the need for a tune or AP at this point.
05-09-2013, 03:06 PM
#11
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@ de, I installed the turbo myself with some help from a friend. When putting it all back nothing gave us any problems that i can see or tell. Everything went smoothly. My new td04 i can tell spools better and harder but i only get 5psi. So i asked a buddy and he said i needed to tune my car. Hence this thread cause i wanted to know if i should just do open source or cobb ap to fix that issue.
05-09-2013, 03:12 PM
#13
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@ Shayhan. The only hose i had to replace was the hose to the boost solenoid. The old one was brittle and snapped like a twig! other than that i checked all the hoses and vac lines and they seem fine still. The restrictor pill is still in good condition. Nothing old cracked or brittle.
05-09-2013, 03:15 PM
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@ de, I installed the turbo myself with some help from a friend. When putting it all back nothing gave us any problems that i can see or tell. Everything went smoothly. My new td04 i can tell spools better and harder but i only get 5psi. So i asked a buddy and he said i needed to tune my car. Hence this thread cause i wanted to know if i should just do open source or cobb ap to fix that issue.
There is supposed to be a restrictor pill in there google the image and it will show you where.