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

Above about 1.1 bar 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 , R33 0.9, R34 1.0.

 

 

 

 

 

 

 

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”.

 

 R35 GT-R

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

Skyline GT-R Wastegate operation and vacuum diagram

Turbo lag

Turbo lag Excel document

Garrett bolt on turbochargers

Garrett GT-RS equivalent  2871-10 
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT28/GT2871R_707160_10.htmGarrett 2530 equivalent 2860-5
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT28/GT2860R_707160_5.htm
Garrett N1 equivalent
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT28/GT2860R_707160_7.htm

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.

Quickest 1/4 Mile Times on Stock Turbos : Worldwide

The quickest known times on stock turbos on Nissan Skyline GT-R’s. This covers the US, Australia, and Europe. The source is the GTR.co.UK forums.

I don’t recommend try this hard on stock turbos. Eventually the ceramic exhaust wheel breaks off, and you have a normally aspirated Nissan Skyline GT-R.

 

1. R32 11.36@125.63 / XKLABA (SAU) / 1.71 60ft
stock ceramic turbos
ces dumps
turbo back exhaust
twin plate clutch
apex'i power intake, PFC , z 32 AFM's
standard intercooler, standard injectors, standard cams, cam gears, spilt fire coils
HKS EVC @ 19 psi = 290.1 rwkw
Shell V-power

2. R33 11.45@118 / godzukid_gtr33 / 1.63 60ft
stock ceramic turbos
power Fc, clutch, cams, JUN oil pump Nismo Fuel Pump and intercooler

3. 11.57@117.89 in Australia (1.71 60ft, ½ track - 7.41 sec / 94mph)
240 rwkw

4. R32 11.61@122.4 / RH9
-stock engine, turbo's, dump pipes (elbows), injectors.
-single plate clutch
-RSR front pipes
-HKS cam gears dialed in for torque
-Trust TR 90mm exhaust (no cat)
-EVC III @ 1.3 bar
-HKS pod filters
-1460kgs with driver (1380kg without) - had a few items removed for weight reduction.
105 octane

5. R32 11.74@120.5 / Eddie
pump fuel
stock ceramic turbos / stock head / stock cams
Link G4 plugin tuned by infomotive.
720cc injectors.
road tires

6. R33 11.76@116.27 / Cliff J / 1.64 60ft
Standard ceramic turbos - running 1 bar
Standard cams
Standard 444 injectors
HKS EVC V boost controller
Blitz induction
Exedy twin plate clutch
Apexi Power FC - mapped by Abbey motorsport
R888 tyres (285/30/18)

7. R32 11.81@120.9 mph / United States
with 1.5 bar of boost

8. R32 12.0@119.35mph / N I B (SAU)
stock R33 Turbos
Wolf ECU
Bigger cooler kit
Apexi exhaust with stock dumps
Nismo clutch
338rwhp

9. R32 12.5 / Adam Kindness
standard turbos 0.9 bar

RB26DETT Myths and Truths

Testing Modified Twin Turbo Pipe

We posted this a little while back on the UK GT-R Forum.

In with keeping with the mostly stock look for Jeffs R32, its going with a twin GT-RS setup, and the stock twin turbo outlet pipe. We have seen some modified pipes in the past, and decided to make one up for Jeffs car. By keeping the front turbo from meeting the rear turbo at such a 90 degree angle, it should help with the balance between the two turbos, and might even help out with power.

Jeffs car is still going together, so we decided to test the modified pipe on the orange R33 . The orange car is Stock engine, stock turbos, aftermarket downpipe, exhaust, intake, Apex intercooler, Power FC.

The starter on the orange car was starting to click, but it would start about every other time. While dynoing another car, Josh put some more pump gas in it, and pulled the front propshaft so we could run it on the dyno.

The last time on the dyno boost was about 14.7 psi and the car did a max of 346 whp. Click though for the test results.

This time boost was up to a peak of about 19 psi and the car with the modified outlet pipe did 378.3 hp , 380 hp, and 378.8 hp. Josh changed the outlet pipe back to a stock pipe, went to start the car, and the starter just clicked. Time to change the starter. 20 minutes later, with another starter in it, do a couple pulls. 361 hp first pull , then 371 hp , then back to 361 hp. Boost was around the same 19 psi, but the car was a lot less consistant.

Ceramic Exhaust Wheel vs Metal Exhaust Wheel Weight

Stock GT-R Ceramic Exhaust Wheel

I found these pictures I took a while ago of the weight of a stock nearly undamaged GT-R exhaust wheel that broke off and a HKS 2530 exhaust wheel with some damage.

The ceramic exhaust wheel weighs in at 54 grams. The metal exhaust wheel weighs in at 130 grams. The 2530 wheel is larger, but its also damaged. Lighter is better, but the problem is that the attachment point of the ceramic exhaust wheel is just too weak. If you get some detonation you end up snapping the exhaust wheel off. Unfortunately its fairly common in the GT-R wheel.

HKS 2530 Exhaust Wheel

Turbocharger Glass Art

For all my friends out there, that have a medical condition, or want some nice turbocharger glass art. I found this over on the TigerLife Blog.

“I started out making this for fun, then I posted it on dsmtuners, Honda tech and the srt forums. I got alot of positive feedback and sold about 20 of them. I can make them as just paper weights or “function art” if you get my drift.

I am selling them for $60 shipped. Sent money via paypal to imeyer85@yahoo.com. Please include if you want the “functional art” version or the normal (paper weight one), your forum name, and what forum you are from.
Thanks
Ian

Some nice glass art. I know some of the turbo fans out there, have that prescription for legal weed. Here in California its turning into a fairly big industry.