Project Twin Turbo KA in a S14: Part II - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

heinekenns · 08-19-2004, 10:07 AM

Project Twin Turbo KA in a S14: Part I
Almost everything is finished and I have been working furiously to get everything running before classes start on Monday. When I started to finally bolt parts on, I quickly realized I did not have the space to fit some of my original plans. I nixed the external wastegate idea (as much as I wanted to hang that big'ol Tial of the mani with external dump) - there was no space to really place it the way I wanted, and using the internal gates was simpler (although I did have to redrill and tap holes in the compressor housing to put the stock actuators after rotating the housings). The downpipe was a bit of a nightmare trying to merge the two whilst avoiding the steering rack, brake booster, and transmission all while lining up with a 3 inch exhuast in the stock location. I tried to fit the DSM core IC, but decided to use a smaller griffin core that I welded custom end tanks onto. Also, the location of the inlets of the compressors resulted in a blow through maf. The lower turbo inlet is directly behind the power steering pump and I felt a little lazy about making a complicated dual inlet pipe. I will test it for right now with a vortech fmu, while I wire in the emanage and fab up the fuel rail for the dsm injectors. I tried to use as many stock parts as I could from the 300zx ( my reasoning was that if they are reliable for 100k in a stock car, then I have less to worry about breaking if they are on my car). So, stock banjo fittings and coolant lines for the turbos, stock actuators, oem fittings and recircs, and everything else I could pilfer off the vg engines for the Project VG30DETT in a S14: Part I . Here are a few really late night pics.

Give me your comments and questions. Thanks
- Nick

08-19-2004, 10:07 AM	#1
heinekenns Join Date: Sep 2002 Posts: 34 Trader Rating: (0) Feedback Score: 0 reviews	Project Twin Turbo KA in a S14: Part II Project Twin Turbo KA in a S14: Part I Almost everything is finished and I have been working furiously to get everything running before classes start on Monday. When I started to finally bolt parts on, I quickly realized I did not have the space to fit some of my original plans. I nixed the external wastegate idea (as much as I wanted to hang that big'ol Tial of the mani with external dump) - there was no space to really place it the way I wanted, and using the internal gates was simpler (although I did have to redrill and tap holes in the compressor housing to put the stock actuators after rotating the housings). The downpipe was a bit of a nightmare trying to merge the two whilst avoiding the steering rack, brake booster, and transmission all while lining up with a 3 inch exhuast in the stock location. I tried to fit the DSM core IC, but decided to use a smaller griffin core that I welded custom end tanks onto. Also, the location of the inlets of the compressors resulted in a blow through maf. The lower turbo inlet is directly behind the power steering pump and I felt a little lazy about making a complicated dual inlet pipe. I will test it for right now with a vortech fmu, while I wire in the emanage and fab up the fuel rail for the dsm injectors. I tried to use as many stock parts as I could from the 300zx ( my reasoning was that if they are reliable for 100k in a stock car, then I have less to worry about breaking if they are on my car). So, stock banjo fittings and coolant lines for the turbos, stock actuators, oem fittings and recircs, and everything else I could pilfer off the vg engines for the Project VG30DETT in a S14: Part I . Here are a few really late night pics. Give me your comments and questions. Thanks - Nick