APS Upgrade
Thread Starter
Instructor
Joined: Apr 2005
Posts: 176
Likes: 9
From: Memphis TN
APS Upgrade
What is the largest turbos that will fit on the APS C6 manifolds? Do you need to upgrade the wastegates to run 15psi or can you just adjust the accuator arm?
Thanks
Josh
Thanks
Josh
Racer
Joined: Apr 2002
Posts: 259
Likes: 0
From: Northridge CA
I think that the largest turbos that will fit the manifolds themselves are on there. I haven't mounted up my kit yet, but I bet it is pretty cramped.
However, it might be possible to fit a larger cartridge in the existing housings by having them machined...I took my manifolds/turbos apart today (preparing for coating and possibly extrude honing) and spent some time looking at the exhaust housings. It looked to me like there might be enough thickness in the housings to fit something bigger, but I am by no means a pro.
In regards to the wastegates...an EBC should be all that you need for 15psi, although I do know that Tom @ NLP was working on fitting some billet actuators to replace the stockers, he has a TON of experience with this stuff...give him a call.
However, it might be possible to fit a larger cartridge in the existing housings by having them machined...I took my manifolds/turbos apart today (preparing for coating and possibly extrude honing) and spent some time looking at the exhaust housings. It looked to me like there might be enough thickness in the housings to fit something bigger, but I am by no means a pro.
In regards to the wastegates...an EBC should be all that you need for 15psi, although I do know that Tom @ NLP was working on fitting some billet actuators to replace the stockers, he has a TON of experience with this stuff...give him a call.
Thread Starter
Instructor
Joined: Apr 2005
Posts: 176
Likes: 9
From: Memphis TN
The kit is currently on a 06 A6 and running of the wastegate we are seeing 5psi. With the greddy electronic boost controller we are only seeing 6.5 psi. The car is getting a 402 next week.
Racer
Joined: Apr 2002
Posts: 259
Likes: 0
From: Northridge CA
Sounds like the EBC might not be setup correctly. There are usually a couple of dip switches (older models) or electronic options (newer models) that allow you to configure the controller for twins or a single.
If it is a newer model make sure that you have the overboost setting where you want it, or it will limit boost.
If it is a newer model make sure that you have the overboost setting where you want it, or it will limit boost.
Former Vendor
Joined: Aug 2004
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Originally Posted by Hybrid901
Do you need to upgrade the wastegates to run 15psi or can you just adjust the accuator arm?
Thanks
Josh
Thanks
Josh
Peter
