1G Turbocharger
This is the turbo on a 1G DSM. There are a couple of different turbos that come on the 1G’s from the factory. There is the larger, more common 14B turbo found on all of the 5sp DSM’s. And there is the smaller 13G turbo that came on all of the 90-94 Automatic DSM’s. The turbo in the above picture is actually an Evo III 16G turbo, but use the same exact compressor housing as the 14B.
14B Info
A 14B turbo is significantly larger than most factory turbos on other vehicles. For example, the 3000GT turbo’s are damn near small enough that you can put each one in your pocket. The 14B is the largest turbo available from the factory on our DSM’s. The 2G (95-99) DSM’s use a T25 turbo and flow less than a 14B and also less than the 13G.
The 14B AND the 13G, use a J-Pipe. The J-Pipe connects the intercooler piping to the turbo via a 2 bolt flange. Although I am a huge fan of the TD05 turbos, this is one thing I hate about them. The J-Pipe design sucks compared to a down firing turbo where the intercooler pipe clamps directly to the turbo. The J-Pipe flange is one of the most common leaks during a boost leak test. The flange is prone to leaking because there is a gasket in between the J-Pipe and the turbo. It is also common for the bolt holes to strip out of the turbo compressor, which won’t allow for a good seal.
13G Info
Again, the 13G turbo comes on the automatic 1G DSM’s from the factory. These are not very commonly used today because everyone swaps on the 14B or larger turbo. The 13G is also NOT a TD05, but instead is a TD04. The 13G turbo also uses a J-Pipe much like the 14B.
Flow Rate Comparison
The following flow rates are @ 15PSI with their respective housings:
14B- 405 CFM
13G- 360 CFM
T25- 325 CFM
Small 16G- 405 CFM (32lb/min)
Big 16G- 445 CFM (34 lb/min)
Evo III 16G- 550 CFM (42 lb/min)
TD05H Serial Numbers
14B
49178-01010
49178-01030
49178-01400
49178-01410
Small 16G
49178-01520
49178-05200
Big 16G
49178-01420
Evo I Big 16G
49178-01450
Evo II Big 16G
49178-01460
Evo III Big 16G
49178-01470
Turbine housing I.D. by casting number:
6cm2 Turbine housing: 78-11020
7cm2 Turbine housing: 78-11830
7cm2 “Evo III” Turbine housing: 78-13700
8cm2 Turbine housing: 78-12050
Max Outputs
TD05-14B (stock 1st gen): 275-300hp @ 21 psi
TD05-16G (small): 345-365hp @ 22 psi
TD06-16G (large): 365-385hp @ 22 psi
TD06-20G: 430-450hp @ 22 psi
T25 (stock 2nd gen): 235-250hp @ ?? psi
T3 (super 60)/T25 hybrid: 265-280hp @ ?? psi
T3 (super 60)/T28 hybrid: 270-320hp @ ?? psi
EVO Specific Turbo Info
Evolution 1
Turbo = TDO5H–16G-7
Nozzle Area (cm2) = 7
Exhaust turbine = Inconel (steel alloy)
Compressor = Aluminium, 60mm wide
Evolution 2
Turbo = TDO5H–16G-7
Nozzle Area (cm2) = 7
Turbine = Inconel (steel alloy)
Compressor = Aluminium, 60mm wide
Evolution 3
Turbo = TD05H–16G6-7
Nozzle Area (cm2) = 7
Turbine = Inconel (steel alloy)
Compressor = Aluminium, 68mm wide
Evolution 4
Turbo = TD05HR-16G6-9T
Nozzle Area (cm2) = 9
Turbine = Inconel (steel alloy)
Compressor = Aluminium, 68mm wide
Evolution 5
Turbo = TD05HR-16G6-10.5T (GSR)
TD05HRA-16G6-10.5T (RS)
Nozzle Area (cm2) = 10.5
Turbine = Inconel (steel alloy), Titanium alloy (RS)
Compressor = Aluminium, 68mm wide
Evolution 6
Turbo = TD05HR-16G6-10.5T (GSR)
TD05HRA-16G6-10.5T (RS/rs2)
Nozzle Area (cm2) = 10.5
Turbine = GSR – Inconel (steel alloy), Titanium alloy (RS/RS2)
Compressor = Aluminium, 68mm wide
Evolution 6 : Tommi Makinen Edition
Turbo = TD05RA-15GK2-10.5T (GSR)
TD05HRA-16G6-10.5T (RS/rs2)
Nozzle Area (cm2) = 10.5
Turbine = Titanium alloy for both RS/RS2/GSR!
Compressor = Aluminium, 65mm (gsr) – 68mm(rs) wide
Evolution 7
Turbo = TD05HR-16G6-9.8T (GSR)
TD05HRA-16G6-9.8T (RS/RS2)
Nozzle Area (cm2) = 9.8
Turbine = GSR – Inconel (steel alloy), RS/Rs2=Titanium alloy
Compressor = Aluminium, 68mm wide
Evolution 7 GTA
Turbo = TD05-15GK2-9.0T
Nozzle Area (cm2) = 9.0
Turbine = Inconel (steel alloy)
Compressor = Aluminium, 65mm wide
Evolution 8
Turbo = TD05HR-16G6-9.8T (GSR / USDM)
TD05HRA-16G6-9.8T (RS/RS2 & NZDM) or 6MT:TD05HRA-16G6-10.5T (model unknown)
Nozzle Area (cm2) = 9.8
Turbine = USDM EVO 8 & JDM GSR =Inconel (steel alloy),
RS=Titanium alloy.
Compressor = Aluminium, 68mm wide
Evolution MR aka “8.5”
GSR = TD05HR-16G6-10.5T or TD05HRA-16G6-10.5T (Ti Alloy option)
RS = 6MT:TD05HRA-16G6-10.5T or 5MT:TD05HRA-16G6-9.8T
Nozzle Area (cm2) = 10.5 or 9.8(RS-5speed)
Compressor = Aluminium, 68mm wide
Evolution 9
USDM & JDM = TD05HRA-16G6C-10.5T
Turbine: GSR / GT = Inconel alloy, RS = Titanium alloy
Compressor: GSR / GT = Aluminium, RS = Magnesium Alloy
(??) mm wide (to be verified.)
Nozzle Area (cm2) = 10.5 (note: to be confirmed that RS 5MT has 10.5)
RS E9 turbo part number 1515A059 (approx cost 250,000 yen from Mitsi Japan). *Warning* There are reports of RS magnesium compressor wheel failing if boosted above stock boost.
More Evo 9 Turbo info:
… * New more efficient & larger Compressor preventing compressor surge
… * Better pump gas efficiency
… * Turbine Nozzle Area (cm2) = Large 10.5 Hotside (single flapper)
… * Improve actuator design
