Silent Assassin '87 300ZX LQ4 turbo Project(updates)
#41
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A little bit more progress today. I started fapricating the hot side of the turbo. I am using mandrel bends from scrap I get from muffler shops. Today I traded a cold case of pepsi cola for a 2.5 muffler and tail pipe and a 3" tale pipe.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120116_230607.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120116_230607.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120116_230518.jpg)
#44
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CamaroKing I am going with a single. I may have a deal worked out on a 72mm power master. If thats not big enough I will spray about a hundred shot.
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New update. I got the hot side 99% done. I just have to weld on the t4 flange. That requires me driving across town to purchase it and I have been putting that off. I got a little ahead of myself and coated the pipe cause it is so ugly. Its probably going to get wrapped in header tape anyway but it is going to work and once the turbo is mounted and all the other tubing is made you won't even see the hot side. I have a case of pepsi cola and a ten dollar bill in the pipe. I used tail pipe off a ford truck and one off of a chysler challenger both were scrap from local muffler shops. Sorry about the crappy phone pics I didn't have my Nikon with me.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120119_175135.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120119_175155.jpg)
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#46
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Who hoo! I got my turbo its a Power Master gt45 and is bigger than I thought it was so I had to modify my hot side some. Thats ok it seems to look good. Here is a picture with the turbo just mocked up.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120123_155845.jpg)
I am almost finished modifying my truck harness thanks to www.lt1swap.com
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120123_155845.jpg)
I am almost finished modifying my truck harness thanks to www.lt1swap.com
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120123_111400.jpg)
#47
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Big update. I scored the turbo for this car. It's a Power Master GT45. Its the second largest GT45 Power Master makes and has a 1.05 A/R exhaust housing. This turbo is so large that my original hot side pipe wont work. I could have made it work but I didn't like the first one I built so I made another one out of 3" and I think it looks way better. I also got some 4" pipe for the down pipe. Here is the new hotside.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120126_131925.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120126_131853.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120126_131750.jpg)
Here is the start of the down pipe. The turbo is hanging by a support that I made so that the hot side doesn't have the weight of the turbo on it.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_010704.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_010845.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120126_131925.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120126_131853.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120126_131750.jpg)
Here is the start of the down pipe. The turbo is hanging by a support that I made so that the hot side doesn't have the weight of the turbo on it.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_010704.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_010845.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_010735.jpg)
#50
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Thanks guys for the compliments.
I plan on running an intercooler. It will be mounted in front of the radiator if its an air to air. I do have room for an air to water on the drivers side also. I have a volvo intercooler with 2.5 inlet and outlets but I don't this its going to be efficient enough. The main reason for mounting the turbo so far forward was so I didn't have to completely remove all of the core support or hood support whatever you want to call it. It also made fabricating the hotside easier. I am going to use the core support to make an air box with a large panel filter at the inlet of the turbo.
Here is some of what I to done tonight. I got the stainless 4" from a buddy.
I notched the strut tower to make room for the down pipe. I also cut out the sheet metal where the battery once lived so the down pipe can leave the engine bay there also and go underneath the car on the passenger side.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231630.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231853.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231810.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231745.jpg)
I plan on running an intercooler. It will be mounted in front of the radiator if its an air to air. I do have room for an air to water on the drivers side also. I have a volvo intercooler with 2.5 inlet and outlets but I don't this its going to be efficient enough. The main reason for mounting the turbo so far forward was so I didn't have to completely remove all of the core support or hood support whatever you want to call it. It also made fabricating the hotside easier. I am going to use the core support to make an air box with a large panel filter at the inlet of the turbo.
Here is some of what I to done tonight. I got the stainless 4" from a buddy.
I notched the strut tower to make room for the down pipe. I also cut out the sheet metal where the battery once lived so the down pipe can leave the engine bay there also and go underneath the car on the passenger side.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231630.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231853.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231810.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231745.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120129_231723.jpg)
#51
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is there any flex pipe anywhere?
Unless you have solid mounts on the engine, when the engine torques, the turbo will be taking all that stress on your mount. Something is going to break!
Unless you have solid mounts on the engine, when the engine torques, the turbo will be taking all that stress on your mount. Something is going to break!
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That is a good point TTL. I used brand new truck motor mounts but I am going to add a torque strap to the drivers side head to the frame.
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I am going to have a pusher fan on the other side of the radiator so the air will be moving away from the turbo and radiator.
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I don't have any yet but the motor is coming out cause that is just an empty block for fabricating everything. My mounts are kinda ghetto. I cut the factory cross member mount stands down about three inches and welded 1/4 inch plates flat with 1" angle iron to make up the funky truck mount angles. The angle is laying upside down like a triangle.
I know that makes no sense so I will try and get some photos soon.
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Well I have been pretty busy working on this car the past few days. My exhaust system is about 90% compete. I need about 2 more feet of 4" to finish along with some 02 bungs and a couple of v band flanges and clamps. I also shed about 75 pounds of **** from under the dash. I also scored some race seats and old 5 point harnesses that I have to send in to get new tags on. Here are more photos for you to enjoy. Thanks
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120205_122005.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120206_180433.jpg)
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![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120207_155541.jpg)
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120207_155551.jpg)
#59
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Not a whole lot to update. I removed the engine as it was just for mocking up anyway. I cut the passenger side of the firewall out and began moving it back about 3 inches. I will get some pics of that when im done. I also painted my dash black and it looks bad ***. I had trouble with the ac vents fish eyeing on me when I tried to paint them black and now I am going to find some black ones. A lot of people have been concerned about the rear end with this kind of power. You do not have to worry any more. I purchased an 8.8 fox body rear end and a buddy let me use his weld wheels with slicks on to mock up and see if they fit. Believe it or not the stock shocks location on my z matched up to the 8.8. I have decided I am going with the slick and front runner look from now on. Screw the 17's I like the race look better. In this photo I have the car sitting on the rear end housing nothing is bolted up yet. I have plenty of room for the big 28x10.5 slicks. I think I am going to say screw it and slap on some ladder bars and coil overs. I want to keep the ride height as in this photos so I am going to have to do some more sheet metal work. Let me know what you think.
![](http://i277.photobucket.com/albums/kk57/dougnkaty/IMG_20120319_165907-1.jpg)