New turbo
Lead Driver
Joined: Apr 2008
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What size is the one you took out, and are you done yet?
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Elder User
Joined: Feb 2012
Posts: 888
Likes: 2
Current DP is 4".
Not done, but running.... I just wanted to get it mounted and plumbed and fired up before I fly out to ATS tomorrow morning. I'll be back on the 4th and have it done by the end of the week.
Adapter bolted on, and one side port matched....
both sides done:
New turbo - YouTube
Not done, but running.... I just wanted to get it mounted and plumbed and fired up before I fly out to ATS tomorrow morning. I'll be back on the 4th and have it done by the end of the week.
Adapter bolted on, and one side port matched....
both sides done:
New turbo - YouTube
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Elder User
Joined: Feb 2012
Posts: 888
Likes: 2
got the new turbo all tied up today. Built a 2-pc 3" downpipe this time, vs the old one which was a 1-pc 3.5"-4". It was a huge PITA to get in and out, and fit in general. This once was easy to install, and I can remove the upper portion of it to remove turbo or access behind the engine for whatever reason.
First impressions.... it changed the exhaust tone drastically. It is much louder/deeper/dronier now. Also it lost boost, but lowered drive pressure and EGT's. Hard to really test the turbo out with my stock injection pump.
Powdercoated side steps:
Powdercoated rail caps:
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Elder User
Joined: Feb 2012
Posts: 888
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Beings Mike is the only person on earth, that missed the memo that I got a paint job.... here you go brother 
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Elder User
Joined: Aug 2007
Posts: 589
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From: Nutter Fort,West Virginia
i could tell the exhaust tone difference with out the pipe, sounds more like a semi now from what i heard.
is that the same a/r as you had before (sorry i can't keep track of it all)
so you lost boost because you are flowing more now or because it doesn't have enough fuel?
what's you drive to boost now?
is that the same a/r as you had before (sorry i can't keep track of it all)
so you lost boost because you are flowing more now or because it doesn't have enough fuel?
what's you drive to boost now?
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Elder User
Joined: Feb 2012
Posts: 888
Likes: 2
i could tell the exhaust tone difference with out the pipe, sounds more like a semi now from what i heard.
is that the same a/r as you had before (sorry i can't keep track of it all)
so you lost boost because you are flowing more now or because it doesn't have enough fuel?
what's you drive to boost now?
is that the same a/r as you had before (sorry i can't keep track of it all)
so you lost boost because you are flowing more now or because it doesn't have enough fuel?
what's you drive to boost now?
went from a 73/65 .80 T3 to a 76/68 .91 T4
The theory is that this new comp wheel flows more air at a lower boost, so it will do the same flow/performance with less boost.
I'm not going to comment too much on it till I get my DB4 back.
Elder User
Joined: Aug 2007
Posts: 589
Likes: 2
From: Nutter Fort,West Virginia
nmb2, does this app look like it's in the ball park for out trucks?
Garrett Boost Adviser - Online | Turbobygarrett
it's kinda what i went by when selecting a turbo.
Garrett Boost Adviser - Online | Turbobygarrett
it's kinda what i went by when selecting a turbo.
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