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Old 12-17-2013, 06:45 PM   #1
RallySport Direct
NASIOC Storefront Vendor
Vendor Sales Rating: (95)
 
Member#: 33174
Join Date: Feb 2003
Chapter/Region: RMIC
Location: Salt Lake City Utah
Vehicle:
We are Open Late!
888-457-2559 Every day!

Default Tomei Arms M7960 Turbo Install Guide 2011 Sti!!

We have all of these parts, what should we do with them? I know, letís get them installed on our employee Jakeís 2011 Subaru STI! As you can see in the picture below, we are going to install quite a few parts on this thing. Shortly after we get them all installed, we will take the car to get it tuned and get some numbers for you guys!



You can see we have our work cut out for us. In this thread we will be installing the Grimmspeed 3 bolt uppipe, the Tomei ARMS M7960 Turbo, along with the Turbosmart Comp-Gate40, with a turbo blanket by PTP turbo blankets. There are a lot of things going on in this particular write up, but itís all associated and this was a pretty easy installation process.

First thing weíll want to do is get the stock/existing turbo off. To begin with, we pulled the top mount intercooler off to make it easier to access the turbo, six bolts and two hose clamps later, and the top mount pulls right off. (We have the details of the removal in another write up.)



You can quickly see, once you get the intercooler off, there is a lot more room to work with. We took the heat shield off next, three bolts and it should pull right off.



Taking the coolant feed and return along with the oil feed line is really easy, Subaru was nice enough to put them right up top so they are easy to get to. Pull the clamps off and remove the rubber hoses, then take 2 wrenches and take the feed line loose.



We will need to remove the under tray to gain access to the oil return line and the bolts holding the turbo in place. There are a few bolts and clips holding it on, pull them all out and the tray should fall off.



We couldnít get the camera in a decent angle to shoot a picture of the removal of the clamp on the oil return line, but you can see it here. After you loosen the clamp, it will pull off when you remove the turbo. You might have to wiggle the turbo back and forth a little, but it will come off.



There are 5 bolts /nut weíll have to take off to get the down pipe off and out of the way.



Donít forget to remove the wastegate vacuum line


There are 5 bolts on the up pipe 2 hold the up pipe in place, the other three hold the turbo in place. We will ultimately have to remove them all, but for now, just to get the turbo off, we just need to remove the three under the turbo. It will be obvious which ones they are when you get under there.







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Old 12-17-2013, 06:47 PM   #2
RallySport Direct
NASIOC Storefront Vendor
Vendor Sales Rating: (95)
 
Member#: 33174
Join Date: Feb 2003
Chapter/Region: RMIC
Location: Salt Lake City Utah
Vehicle:
We are Open Late!
888-457-2559 Every day!

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CONTINUED



We can get the downpipe out of the way now. There are two bolts holding it to the mid pipe, and another holding it to a bracket about mid-way along the pipe. Pull them all loose and it should come out.



Once thatís out of the way, we can pull the turbo off the car. Hereís a shot of the Tomei turbo next to the stock turbo



Now we need to remove the up pipe. In order for us to do this we need to remove the brackets holding it in place.



Then there are three bolts, on this particular setup, that need to come off of the header.



With a little twisting and pulling, the up pipe should pull out. Hereís a shot with it sitting next to its replacement.



The new unit comes with studs that need to be installed in the turbo flange. There are 5 total that need to be threaded in. Simply take two of the nuts, thread them in opposite of each other and tighten them together and it will aid in the installation of the studs.



Once we get the studs threaded in, we can slide it into place. Itís going to take a little effort to get it to slide in, but wiggling it around and trying different angles, you should be able to get it to go in.



Now that we have it in there, we need to put the bolts back in and tighten them down. First, weíll put the header bolts in.



Get them things tightened down.




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Old 12-20-2013, 02:32 PM   #3
jay7660
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Member Sales Rating: (6)
 
Member#: 212992
Join Date: Jun 2009
Chapter/Region: South East
Location: Dalzell, SC
Vehicle:
2011 STI Sedan
SWP

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Hi,
Was there a specific reason you guys went with the M7960 instead of the M8265 or the M7760? And whats the difference of the 3?
Thanks for the info in advance
-Jay
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Old 12-20-2013, 02:49 PM   #4
RallySport Direct
NASIOC Storefront Vendor
Vendor Sales Rating: (95)
 
Member#: 33174
Join Date: Feb 2003
Chapter/Region: RMIC
Location: Salt Lake City Utah
Vehicle:
We are Open Late!
888-457-2559 Every day!

Default

Quote:
Originally Posted by jay7660 View Post
Hi,
Was there a specific reason you guys went with the M7960 instead of the M8265 or the M7760? And whats the difference of the 3?
Thanks for the info in advance
-Jay

The difference between the three turbo sizes other than trim sizes is that the M8265 supports up to 450 horsepower, and the the M7760 supports up to 380 Horsepower. The M7960 supports up to 400 Horsepower, and this particular turbocharger came off our old shop STI.

The 7960 has the best of both worlds from having a nice low range power band, and having a substantial upper RPM pull. We wanted to utilize this turbocharger on our Customer Service Representatives car along with other modifications for real world, daily drive ability comparisons.

Regards,

Jeff
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