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Thursday, May 06, 2010

Nissan GT-R Turbos R32 , R33, R34, R35

The following is some information on the stock and aftermarket turbos available for the Nissan Skyline GT-R , and Nissan GT-R. R32, R33, R34, R35 as they are often referred, being the chassis codes. R32, R33, R34, R35
Above about 1.1 bar (16 psi) the stock RB26 turbos have a tendency to break the exhaust wheel off. People have gone low 12's, high 11's on the stock turbos, but not for long. Stock peak boost R32 is about 0.8(11.5 psi) , R33 0.9(13 psi), R34 1.0 (14.5 psi).




Steel wheel on the left, ceramic on the right. Notice the shape of the "nut" on the end
Nissan Skyline GT-R Turbocharger Part Numbers
Part Part Number Designed Output
BNR32 Stock Ceramic (1989-1991) 14411-05U20
BNR32 Stock Ceramic (1991-1993) 14411-05U21
BNR32 Stock Ceramic (1991-1993) 14411-05U22
BNR32 NISMO OEM 14411-06U00 300PS 
BCNR33 N1 14411-24U10 280 PS
NISMO GT LeMans 14411-RS581 320 PS


14411-RS581



Late N1 turbo with its itty bitty compressor wheel



OEM NISMO turbo. 14411-06U00



HKS GT-RS Turbo aka 2871-R

R32 , R33 , R34 Exhaust manifold
Stock exhaust manifold on the left, ported,
 modified N1 manifold on the right
The exhaust manifold on the left side of the picture is a stock R32,R33, R34 piece.
On the right is a modified N1 exhaust manifold from a Nismo built Super Taikyu car.
You can see bracing between the manifold flanges, and the larger hole for the turbo “foot”.
The N1 Super Taikyu car also used individual exhaust gaskets.
The normal exhaust gasket is one piece for each three cylinders. 


 Brand: Nismo
Product: RB26DETT Engine Parts - R1 Turbo Kit
Part Num: 1441A-RSR45

SPECIFICATIONS:
Compressor:
- Housing: T3 (A/R 0.42)
- Wheel: T3 (trim 55)
Bearing: Ball bearing
Turbine:
- Housing: T25 (A/R 0.64)
- Wheel : GT25 (trim 62)
Actuator: Reinforced spring, adjustable rod
Max. efficiency: 73%
Max. air pressure ratio (at boost pressure): 103% (1.35kg/cm2)
Designed output: 280PS(2)

PRODUCT NOTES:
- For Skyline GT-R (BNR34) vehicles for N1 racing- Reinforced actuator set included (nozzle opening pressure: 635mm Hg/0.33mm, 760mm Hg/4.0mm)- One vehicle set (two turbo units)/exchange gaskets/necessary piping
- Use of this product requires adjustment of boost pressure and engine control unit before use.

Garrett bolt on turbochargers for RB26DETT



Stock vs GT-RS vs 2835

Garrett GT-RS equivalent  2871-10 or 707160-10
  • Over 500 wheel horsepower on an RB in a pair
  • Should be used with a 2.8 or larger engine
  • Can surge at part throttle



Stock vs 2530 (2860-5)

Garrett 2530 equivalent 2860-5 or 707160-5


  • Up to about 500 wheel horsepower on an RB in a pair
  • Great upgrade for a 2.6 liter

Garrett N1 equivalent 2860-7 or 707160-7



  • Up to about 400 wheel horsepower on an RB in a pair
  • Used on the N1 cars
  • Good response

More Garrett turbochargers.



Billet wheels vs cast compressor wheels. 

  •  A Billet Compressor Wheel compared to a Cast Compressor Wheel offers NO GAIN in performance by its material alone. Some have argued that they can be made lighter for better spool, or that they can be made with more aggressive fin designed due to there better sheer strength. While that MIGHT be true, we have seen no conclusive evidence or study that has proven this so we have to rule it out for now and say it’s NOT FACTUAL even though it MIGHT be true.


Billet wheels CAN, again that is CAN, perform better. Because they can be a low production run of wheels, there flow and performance can be tailored to running a specific pressure ratio (PR) or to have a certain amount of peak flow, or surge line capability, or be able to jump on new blade design technology faster since there is no need to delay the technology getting to market because of setting up machining and tooling.


HKS turbochargers
Turbo Output Compressor Wheel Compressor Housing Turbine Wheel Exhaust Housing
PS Trim Inducer (mm) Major (mm) Inlet (mm) Outlet (mm) A/R Trim Major (mm) Exducer (mm) Inlet Flange Oulet Flange A/R
GT-SS 280 60 46.6 60.1 0.60 76 53.8 47 GT25 Internal - GT25 0.64
GT2510 300 63 47.7 60.1 60 50 0.60 62 53 41.7 GT25 Internal - GT25 0.64
T3 Internal - Skyline Type 0.64
GT2530 320 63 47.7 60.1 60 50 0.60 76 53.8 47 GT25 Internal - GT25 0.64
T3 Internal - Skyline Type 0.64
GT2535 340 56 51.6 69 60 50 0.60 76 53.8 47 GT25 Internal - GT25 0.64
0.86
T3 Internal - Skyline Type 0.64
GT2540 350 46 51.7 76.2 60 50 0.60 76 53.8 47 T3 Internal - Skyline Type 0.64
GT2540R 360 46 51.7 76.2 70 50 0.50 76 53.8 47 GT25 Internal - GT25 0.64
370 0.86
GT-RS 400 52 51.2 71.1 60 50 0.60 76 53.8 47 GT25 Internal - GT25 0.64
GT2835 380 48 49.3 71.1 70 50 0.50 84 56.5 51.8 GT25 Internal - GT28 84 trim 0.64
0.86
400 52 51.2 71.1 70 50 0.50 External - GT30 0.61
0.73
0.87
410 56 53.1 71.1 70 50 0.50 1.01
1.12
GT2835Pro 420 56 53.1 71.1 100 50 0.50 84 56.5 51.8 T3 GT-Pro Type 0.68
GT2835ProS 420 56 53.1 71.1 100 50 0.50 84 56.5 51.8 T3 GT-Pro Type 0.68
0.87
GT2835R 420 56 53.1 71.1 100 50 0.50 90 56.5 53.6 GT25 Internal - GT28 90 trim 0.86
External - GT30 0.61
0.73
0.87
1.01
1.12
GT3037ProS 480 56 57 76.2 100 50 0.60 84 60 55 T3 GT-Pro Type 0.68
0.87
480 56 57 76.2 100 50 0.60 84 60 55 1JZ (VVT-i) GT-Pro Type 0.68
0.87
GT3037 420 48 52.8 76.2 70 50 0.60 84 60 55 GT25 External - GT30 0.61
440 52 55 76.2 70 50 0.60 0.73
470 56 57 76.2 70 50 0.60 0.87
GT3037S 450 52 55 76.2 100 50 0.60 1.01
480 56 57 76.2 100 50 0.60 1.12
GT3040 500 50 58 82 100 60 0.70
GT3240 580 54 60.3 82 100 60 0.70 84 54 58.7 GT25 External - GT30 0.87

http://homepage.ntlworld.com/tbroom/Turbos.htm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Apex - IHI turbochargers

AX TURBINE/RX6B TURBO CHARGER statistics chart
MODEL Bearing system Supercharging pressure Control control equipment Correspondence with 1 machine Output (PS) Compressor wheel Compressor housing Turbine wheel Turbine housing Actuator
Trim Entrance diameter (Mm) Major diameter (Mm) Entrance diameter (Mm) Exit diameter (Mm) A/R (Mm) Trim Major diameter (Mm) Exit diameter (Mm) Entrance flange Exit flange A/R (Mm) Material Pilot by-pass Diameter (mm) Type Set pressure (MmHg)
AX53B60 STD Ball bearing Actuator 340 57 46 60 φ 60 φ 50 19 82 53 48 T25 SR20 exclusive use (S14) 22 High silicon 26 STD 570
25
13.4 T25 RB26 exclusive use 18 26 570
21
20 EJ20 exclusive use EJ20 exclusive use 20 24 570
Racing 13.4 T25 RB26 exclusive use 18 ニレジスト D5S 27 Strengthening type 750
21
AX53B70 STD Ball bearing Actuator 380 57 53 70 φ 60 φ 50 19 82 53 48 T25 SR20 exclusive use (S14) 22 High silicon 26 STD 570
25
13.4 T25 RB26 exclusive use 21 26 570
19 T3 RB20/25 exclusive use 22 24 570
25
19 EJ20 exclusive use EJ20 exclusive use 18 24 570
Racing 19 T25 SR20 exclusive use (S14) 22 ニレジスト D5S 28 Strengthening type 750
25
RX6B TCW15 Ball bearing West gate 440 48 54 78 φ 70 φ 60 21 87 61 57 RX6B RX6B 13 High silicon - - -
TCW10 500 57 59 78 φ 70 φ 60 21 87 61 57 16
TCW76L 520 47 56 82 φ 75 φ 63.5 21 87 61 57 18
TCW77L 560 55 61 82 φ 75 φ 63.5 21 87 61 57 20
TCW76LS 520 47 56 82 φ 90 φ 63.5 21 87 61 57 22
TCW77LS 560 55 61 82 φ 90 φ 63.5 21 87 61 57 25
27
AX75F82 STD Floating metal West gate 640 61 64 82 φ 100 φ 60 17.8 76 74.1 64.5 T4 and 1 port Inserting type inside diameter φ 73, major diameter φ 90.5 25 High silicon - - -
AX75F92 STD Floating metal West gate 730 50 65 92 φ 100 φ 60 17.8 89 74.1 70 T4 and 1 port Inserting type inside diameter φ 73, major diameter φ 90.5 25 High silicon - - -
* As for the AX53B series turbine specification differs each every kit.
The RX6B series has set conformity turbine size each every kit.
Each commodity concerning details please inquire.
Turbo-info-full


turbochart200to1000-custom-size-800-456

The following charts below are in no means scientific. They are done on different days, different cars, different setups. What we are looking at is overall ideas.


Many different turbos. Points picked from dyno charts and plotted



Same chart broken out to several old single turbo setups.

R35 GT-R

turbo (1)

Standard Spec V HKS-TF
COMP  Trim 60T  60T 64T
IN(mm) 43.4  46.5  46.5
OUT(mm)  56  60  60 
Number of blades 12  12  12 
EXH Trim 57T  82T  57T
IN(mm) 53  53  53
OUT(mm)  39.8  48  39.8 
Number of blades 9 11  9 + cutback
edit-I am not sure this is the standard GT-R turbo, it specs out more like the SpecV turbocharger
Uses an IHI turbo, with an integrated exhaust manifold.
IHI RHF55 same as MY06 STi Impreza
Turbocharger Type RHF55 Turbine Blade no. 11 Compressor Blade no. 6 + 6 Turbine Rotor Size 53mm / 48mm Compressor Rotor Size 60mm / 46.5mm Max. Turbine Speed 165000 rpm Wastegate Open Press. 78 kPa A/R Ratio 15 Compressor seal material Synthetic mica + Teflon Bearing Type Floating Metal Bearing

GT42R R32 Nissan GT-R


7 comments:

Anonymous said...

Hi Sean! What would you recommend between the two, Garett -7, -5, or -9 on an RB26 stock bottom with 87mm N1 pistons non-forged, & Nismo oil pump? Can upgrade to Tomei poncams if needed. Ready parts are Nismo MAFs, and Nismo Fuel Pump. As for the injectors maybe I will go 800cc.

Just wondering what is the best choice among these good turbos. Car will not be a race car, just a weekend warrior with track days. I have heard -7 has the best response but will lack power up top. My goal is to reach 500hp at a very safe tune.

Thanks and all the best!

Sean Morris said...

500 is a perfect spot for a -5/2530.

Injectors 800-1000 cc. 800 is well enough, I just generally do 1000 cc as they run fine on them, and gives you a ton of headroom.

-7 cranked up will only do about 450 whp on a 2.6, stock cams/head engine.

Anonymous said...

Thanks Sean! By the way, sorry for the typo its three not "between the two". he he. So -5s it is. But are cams essential for the setup or optional only? Was planning to go Nistune. They're also good right? Yep head room is always nice so 1000cc is good. ;)

Anonymous said...

Oh is it true they're laggy? Someone recommends -9 they say its not as laggy, and its like a cross between -5 and -7. But maybe its not good if its around 2.6 displacement only. BTW, I also have a 1.2mm Nismo gasket ready. :)

Which reminds me, are there more GT-R BNR32s now in the U.S since its already 2015? I have heard parts demands are on a rise now.

Thanks again!

Sean Morris said...

You don't need cams, but in my experience cams help everywhere. You don't "need" them, but they are worth probably 20 hp in a small build. RB is already a small displacement car, so a big cam doesn't hurt area under the curve.

Nistune is a good box. Check out some of my videos on Youtube. The new Feature Pack includes a two step and E85 compatibility.

I don't have any experience with the -9, must be like a 2510. We ran N1, 2510, and 2530 on the R34 race car. If you check out my "Turbolag" post, I put up a bunch of different dyno charts. https://sites.google.com/site/tyndago/turbolag

You can tune around the lack of low end to a point.

More and more R32 every day. I have been importing them under - http://www.importavehicle.com Two more R32 arrived last week. Couple more on the water. More in Japan. About 4 at our local shop, and 8 at our Washington location.

Anonymous said...

I presume those 32s you've mentioned are BNR32 / GTR ones not lower variants which we usually see on drift events. Have asked this coz I have a friend back in the U.S that sells parts, and I remember him saying demands are rising for RB26 and GTR32 parts.
Good luck on the importing Sean! And thanks so much for the tip! I can imagine now after a few more years the GTR scene will boom in America. :)

Sean Morris said...

Selling all kinds of cars. Not just GT-R. Some RX-7, Soarers, Landcruisers, Crown, etc. All types of Skylines too. From 4 doors to GT-R.

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