Porsche Parts Catalog Porsche Accessories Catalog Porsche Technical Articles Porsche Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Fabspeed Turbo Outlet Pipe Installation
 
Bookmark and Share

Pelican Technical Article:

Fabspeed Turbo Outlet Pipe Installation

Steve Vernon

Time:

1-4 hours

Tab:

$400

Talent:

***

Tools:

15mm (2), 13mm (2) socket, extensions,

Applicable Models:

Porsche 944 Turbo (1986-89)

Parts Required:

Fabspeed turbo outlet pipe

Hot Tip:

Get a friend to help

Performance Gain:

Better performance and sounds

Installation of the Fabspeed turbo outlet pipe is a great way to add some performance and reliability to your Porsche 951.

While the replacement of the outlet pipe itself is not that large of a job and certainly once it is installed you will not need to worry about it but there are, as always, a few concerns when work on old exhaust and turbo components. While it is possible to just replace the outlet pipe once you have the intake manifold off there is a good chance you will need to remove the turbo from the vehicle. While removal of the turbo is not really all that difficult if everything goes as it should, if things were not done correctly by the previous owner or shop it can turn into a real pain. You should be prepared for studs to break and potentially stripped bolts: we had both on our project car. The turbo is packed into the engine bay tightly and there is little to no room to heat up bolts with a torch.

If you are setting out on this project make sure to give yourself plenty of time and that you work in an area where you can leave the car protected from the weather for at least a weekend. Removing the turbo should take you 6 hours the first time if everything comes apart as it should. If you start having problems with fasteners it can quickly escalate to taking a lot longer. Installation of the Fabspeed turbo outlet pipe, once everything is off and ready, should only take you an hour but give yourself up to four hours the first time you do it.

Since it will seem like half of the top of the motor needs to come off now is also a good time to plan the "while I'm in there" projects. These can include replacing the air oil separator and sealing the upper balance shaft.

There are a lot of components you will need to remove first so just take your time and follow the step-by-step instructions, and you will be fine.

The turbo is located under the intake manifold (red arrow) and there are several other components that will need to come off as well.
Figure 1

The turbo is located under the intake manifold (red arrow) and there are several other components that will need to come off as well. Please see our article on turbo removal for all of the steps, tricks and hints for removing your turbo.

If you have had the turbo off recently there is a good chance that you can remove the hardware for the stock turbo outlet pipe without anything breaking and just install the new Fabspeed pipe, gaskets and hardware.
Figure 2

If you have had the turbo off recently there is a good chance that you can remove the hardware for the stock turbo outlet pipe without anything breaking and just install the new Fabspeed pipe, gaskets and hardware. That was not the case with our project car. We ended up having to remove the complete turbo. If you are able to just remove the turbo outlet pipe you need to remove the four 13mm nuts on the outlet pipe (red arrow, two shown), the 15mm nuts and bolts connecting the outlet pipe to the exhaust (yellow arrow) and the single 13mm bolt that holds the stock outlet pipe to the engine (green arrow). With these removed you can simply install the new Fabspeed outlet pipe along with the new gaskets and hardware that come with the kit and you are done. The Fabspeed pipe does not have a mount to the body so make sure to install a 13mm bolt in the open body hole (green arrow), as it helps secure a heat shield before installing the new pipe.

This photo illustrates the turbo removed.
Figure 3

This photo illustrates the turbo removed. If you have just removed the outlet pipe you can install the Fabspeed pipe. Using the new gasket and hardware supplied with the pipe, attach it to the turbo and the exhaust (yellow arrow). If you have removed the turbo you will also need to replace the ring in the input pipe (green arrow). The 13mm mounting bolt (red arrow) is eliminated with the Fabspeed pipe.

This photo illustrates the mount of the 13mm bolts that will be eliminated with the Fabspeed kit (red arrow).
Figure 4

This photo illustrates the mount of the 13mm bolts that will be eliminated with the Fabspeed kit (red arrow). Make sure to install a 13mm bolt into the engine case as it retains a heat shield.

If your outlet pipe has never been removed before or you live in a four-season climate, there is a very good chance you are going to remove the turbo from the vehicle to install the new pipe.
Figure 5

If your outlet pipe has never been removed before or you live in a four-season climate, there is a very good chance you are going to remove the turbo from the vehicle to install the new pipe. The hardware on our project car was old and corroded. We attempted to remove the pipe by heat cycling the nuts and alternately soaking them in penetrating oil. Next we heated up the nuts until cherry red and attempted to remove them from the turbo housing studs.

Even using heat cycles, penetrating oil and a torch we still were only successful in removing one nut and ended up breaking three of the studs (red arrows).
Figure 6

Even using heat cycles, penetrating oil and a torch we still were only successful in removing one nut and ended up breaking three of the studs (red arrows). This is common in older vehicles. You should be prepared that it might happen to your car. We had to separate the turbo housing and drill, tap, helicoil and install new studs. Any good machine shop should be able to do this for you for a nominal fee if your studs break. Make sure to scribe or mark the position of the turbo housing before separating them so everything will line back up.

Here is the turbo back together with three new studs.
Figure 7

Here is the turbo back together with three new studs.

This photo illustrates the new Fabspeed outlet pipe beside the old stock pipe.
Figure 8

This photo illustrates the new Fabspeed outlet pipe beside the old stock pipe. Note the mounting hole that has been eliminated on the Fabspeed pipe (red arrow).

Do not forget to install a 13mm bolt into the empty engine plug to help hold the heat shield (red arrow).
Figure 9

Do not forget to install a 13mm bolt into the empty engine plug to help hold the heat shield (red arrow).

Install the new outlet gasket that comes included with the Fabspeed pipe.
Figure 10

Install the new outlet gasket that comes included with the Fabspeed pipe.

Install the pipe to the turbo outlet.
Figure 11

Install the pipe to the turbo outlet.

Install the new outlet pipe or the turbo.
Figure 12

Install the new outlet pipe or the turbo. Use care as the brake heat shield is very close to the outlet pipe (red arrow).

Install the new gasket between the outlet pipe and the exhaust.
Figure 13

Install the new gasket between the outlet pipe and the exhaust. Using the new hardware, tighten everything up, and you are done.

Bookmark and Share

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Fri 12/2/2016 02:52:08 AM