My pics of my TC78 and PT7675
#1
9 Second Club
Thread Starter
iTrader: (10)
Join Date: Apr 2009
Location: Joliet,IL and Las Vegas 50/50
Posts: 1,230
Likes: 0
Received 3 Likes
on
3 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
So I figure I'd post up some pics of my recent conversion from a TC78 to a PT7675. I haven't actually installed it yet, but I pulled the TC78 out and got some side by side shots for you guys to compare. I also did a mockup of the turbo in the car and my hot and cold side piping line up. The outlet is a bit longer on the PT unit compared to the TC. The t4 flange in relation to the downpipe outlet is spot on the same. I had to hold off bolting on the PT unit because the only clearence issue I had was how I have the radiator piping ran to the waterpump hits the compressor housing. The compressor housing is noticably larger so if you have a tight area around the compressor keep that in mind. The turbine housing is about the same with subtle differences. Pics below.
![](http://i23.photobucket.com/albums/b354/wditton/E2CDADF6-7E02-4B76-9536-0029BA1CACFA-268-0000000C7821F4AD.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/CBD798B3-2871-4A68-8A4A-72B1FC4B37B3-268-0000000C7D87FD74.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/1D20D22F-2CD6-4B33-97A6-FB9BFEA4753F-268-0000000C80BE0D88.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/282A657A-8F04-453E-9C7D-4C977B7B7A8C-268-0000000C835FDD60.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/992D69B1-B395-4C27-874D-E703A3AAB924-268-0000000C85B880DA.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/8F741171-DCAD-491C-A91F-BCDC0413C00B-268-0000000C8C070183.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/3A1071E5-97AD-4000-832D-7626675345C5-268-0000000C8EC07164.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/E2CDADF6-7E02-4B76-9536-0029BA1CACFA-268-0000000C7821F4AD.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/CBD798B3-2871-4A68-8A4A-72B1FC4B37B3-268-0000000C7D87FD74.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/1D20D22F-2CD6-4B33-97A6-FB9BFEA4753F-268-0000000C80BE0D88.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/282A657A-8F04-453E-9C7D-4C977B7B7A8C-268-0000000C835FDD60.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/992D69B1-B395-4C27-874D-E703A3AAB924-268-0000000C85B880DA.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/8F741171-DCAD-491C-A91F-BCDC0413C00B-268-0000000C8C070183.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/3A1071E5-97AD-4000-832D-7626675345C5-268-0000000C8EC07164.jpg)
![](http://i23.photobucket.com/albums/b354/wditton/18857E34-FA69-46C4-89FA-0E3F9BB14424-268-0000000C941D1444.jpg)
Trending Topics
#18
9 Second Club
iTrader: (2)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
im glad you posted that pic of the tc-78. it shows me just what i needed to see my tc-78 has a .96 housing but it has been cut and a 3.5 downpipe flange welded on and is tapered perfectly to the turbine. it is such a nice job i thought it was stock. my downpipe flange is 3.5 id and 4.25 od of flange. anyone ever seen one done like mine and how much improvement was it. thanks.