tuckermon

iTrader: (5)

Does anyone know what nissan turbo is a "2560"? I find a ton of T25's T28's, T28R (2560R) but can't find out what nissan turbo number is a "2560" that is best for our cars.

Tahnks,
Drew

Full_Tilt_Boogie

iTrader: (1)

I believe the infamous "T28" found on the sr20, is basically a 2560.

skou

iTrader: (42)

Garrett Part No. 466541-1
Nissan Part No. 14411-69F00

Garrett Part No. 466541-4
Nissan Part No. 14411-91F00

From Garrett's catalog for the GT2560R:

- Dual ball bearing, oil & water-cooled CHRA
- Internally wastegated turbine housing complete with actuator
- Turbine housing is cast from high-nickel “Ni-Resist” material (466541-4 only)
- Turbine wheel is cast from “Inconel” material for extreme applications (466541-4 only)
- OEM turbocharger on Nissan SR20DET engine

vehicular

iTrader: (3)

It's only on S15 SR20s. The run on the mill S13 and S14 motors aren't 2560s. Also, a 2560R is a 2560. The 'R' just denotes ball bearings.

18psi

iTrader: (76)

So basically they're rare on nissans, and still not the real deal ball bearing 2560 everyone on here raves about

Still nice tho

thirdgen

iTrader: (26)

All s13's used a 56mm compressor wheel which makes the turbo similar to the gt2554. This is the most common sr20 turbo.
The s14 used a 60mm compressor wheel and it was basically a journal bearing 2560.

vehicular

iTrader: (3)

The S14 turbo is very much a regular *** T28.

tuckermon

iTrader: (5)

seems to be a lot of conflicting info.

thirdgen

iTrader: (26)

Conflict this:

Specifications for RED Top SR20DET
180SX 91-93 and Silvia 91-93
Displacement: 1998cc (2.0 liter)
Cam type: DOHC 16 valve, chain driven cam sprockets
Bore and stroke: 86mm x 86mm
Compression: 8.5 : 1
Horsepower: 205ps at 6000rpm
Torque: 203 ft/lbs at 4000rpm
Stock boost: 7 psi
Throttle body bore: 60mm
Injector size: 370cc/min
Turbo specs:
Compressor: T-25, 60 trim 56mm BCI-1 compressor.
Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
Center Section: Journal bearigs

Specifications for Black Top SR20DET
180SX 94-98
Displacement: 1998cc (2.0 liter)
Cam type: DOHC 16 valve, chain driven cam sprockets
Bore and stroke: 86mm x 86mm
Compression: 8.5 : 1
Horsepower: 205hp at 6000rpm
Torque: 203 ft/lbs at 4000rpm
Stock boost: 7 psi
Throttle body bore: 60mm
Injector size: 370cc/min
Turbo specs:
Compressor: T-25, 60 trim 56mm BCI-1 compressor.
Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
Center Section: Journal bearings

Specifications for Black Top S14 T28 VTC
Silvia 95-98
Horsepower: 220hp at 6000rpm
Torque: 203 ft/lbs at 4800rpm
Turbo specs:
Compressor: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing
Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
Center Section: Ball Bearing

Specifications S15 Black Top SR20DET
S15 Silvia 99-
Horsepower: 250ps at 6000rpm
Transmission: 6 Speed, Close Ratio
Injector size: 480cc/min
Turbo specs:
Compressor: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing
Turbine: Inconel turbine wheel. Cast divider wall between turbine discharge and wastegate.
Center Section: Ball Bearing

tuckermon

iTrader: (5)

thanks. I think???

AllSystemsNominal

Check the Nissan forums. 2 months ago I bought a brand new (in nissan parts box) S15 bb turbo for $730 shipped. according to Garrett its the same as a 2560r except for the inconel turbine wheel/cast divider wall in the turbine housing and the Inlet/outlet on the turbo require adapters

Fireindc

iTrader: (13)

Guys, this is simple.

S13 red/blacktop turbo: Small t25, journal bearing, a 2554 basically.
s14 notchback turbo: bigger t25, journal bearing, a 2560 basically.
s15 vvt turbo: bigger t25, BALL BEARING, same size as s14 turbo - 2560 basically.

So you want a BB 2560? Find a s15 turbo. I THINK (not sure though) some of the late s14 motors also had these, but still rare.

Edit: just read thirdgens post above. Looks like the s14 "silvia" was ball bearing as well? I do know the ball bearing versions are the rarest, but i've seen them for around 350 bucks a few times now. This is what I'm getting for my new build..

chiods

Late s14 turbos had a single ball bearing on exhaust and a journal bearing on the intake side. s15 turbos had dual ball bearings. Hope that clears some things up.

Fireindc

iTrader: (13)

TIL. Thanks. I know there was a considerable difference in spool between the two.

tuckermon

iTrader: (5)

Good to know.