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Old 8th February 2017, 08:11 AM   #61 (permalink)
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Originally Posted by curious View Post
BHP, are we taking about the same plate, the plate on the front cambelt cover refers to the engine being a NISMO built and serial numbered engine, that can be seen.

I am referring to the NISMO PADDOCK OMORI FACTORY plate that is screwed onto the driver front turret top.

The 100 official NISMO S1 all had these and they were all numbered stating the date that the Chassis and engine mods had been carried out.

This is far as I know as I was looking to buy this if it was a S1 and add to the collection.

If anyone can shed any more light on this it would be helpfull
Very Interesting facts

These plaques were not limited to just the S1

My R1 does not have this plaque but i do know of another R1 that does have this plaque, so not sure what the deal is and why all cars were not installed with this plaque.
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Old 8th February 2017, 08:52 AM   #62 (permalink)
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wow, you certainly do learn something new everyday - especially with regards to the Skylines
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Old 22nd February 2017, 12:28 PM   #63 (permalink)
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excellent article of the omori factory and the services on offer

BNR34 GT-R: Omori Factory Tour Part 2 - The Ultimate Tuning Facility
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Old 22nd February 2017, 12:34 PM   #64 (permalink)
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and part 1,

BNR34 GT-R: Omori Factory Tour Part 1 - Meet your Heroes

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Old 23rd February 2017, 12:54 AM   #65 (permalink)
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this thread is making me jealous..
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Old 26th February 2017, 11:29 AM   #66 (permalink)
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Modern Classics magazine out this week, features a R34 R-Tune & a R33 I think.

Anyone on here?
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Old 4th March 2017, 12:50 AM   #67 (permalink)
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Wicked thread - ...-
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Old 1st April 2017, 11:36 PM   #68 (permalink)
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some good info on the S1/S2 and R1/R2 packages

BNR34 GT-R: Nismo Works Special - S2 & R2 Engines Explained


BNR34 GT-R
Friday, March 31, 2017
Nismo Works Special - S2 & R2 Engines Explained
Lately I have been receiving quite a few messages on the Facebook page inquiring about Nismo works engines, especially the S2 and R2 power-units as well as their predecessors, S1 and R1. There are a lot of myths and incorrect information floating around, so I thought it would be worth shedding some light. Both available for the BNR33, BCNR33 and BNR34, these engines represent Nismo latest offer for RB26 powered Skyline GT-Rs and are engineered following different philosophies.

S2

Developed with road use in mind, the S2 concept is Nismo answer to owners looking for fine street balance and enough performance to enjoy the occasional track day. Based on the older S1 Concept, Nismo went on and refined certain areas, especially in the torque department. Let's go with order: the S1 package is a hand-assembled unit usually based on a overhauled version of the owners current engine; while it is no longer for sale (replaced by the S2), its engineering concept is still used as a base for the newer version. The block is the RB26 OEM standard model: based on conditions and mileage, technicians would decide whether it needs replacing or not. Further my conversations with Nismo staff, unless your motor has less than 20,000km, given the age these cars have reached, they will likely advise to replace the block regardless of its state, mostly for warranty reasons (the engine comes with 1 year or 10,000km coverage). First step in the overhauling process is replacing the following parts with new OEM standard ones:

- Engine block: OEM - Standard (optional)
- Main bearings: OEM - Standard
- Conrod bearing: OEM - Standard
- Water pump: OEM - Standard
- Crank pulley & bolts: OEM - Standard
- Turbochargers: OEM - Standard
- Turbo outlet: OEM - Standard
- Engine gasket: OEM - Standard (overhauled)

The second step consists in upgrading the following part list to a higher spec:

- Pistons: N1 Version
- Piston rings: N1 Version
- Oil pump: N1 Version
- Timing belt: Nismo reinforced
- Oil pump plate: Nismo
- Air filter: Nismo
- Spark plugs: Nismo racing type #7
- Heat-shield tape: Nismo 50mm

The end result of the workflow so far is the older S1 engine concept. The S2 represents the natural evolution of its predecessor and Nismo focused on modernizing certain areas by adding the following parts:

- Fuel injectors: R35 GT-R - Nissan OEM 570cc
- Fuel delivery pipe: Nismo R35 conversion
- Camshaft: Nismo S2
- Head gasket: Nismo 0.9mm
- ECM: Nismo S2
- Engine cover: Nismo S2 exclusive

A point worth noticing is that, in case the engine is developed for a BNR32 or BCNR33, the turbos would be upgraded to BNR34 OEM Standard with ceramic internals, aiming to improve torque response from low/mid speed ranges.

The camshaft is also specifically designed to balance street-driving smoothness and torque delivery.

The dedicated ECM is tuned to implement the changes brought by the R35 fuel injectors, the new camshaft and bring all together by sharpening the acceleration response. Additionally, Nismo fine-tuned the unit to improve fuel efficiency, expecting S2 owners to spend more time on the road than on track.

Thanks to this upgrades and parts specifically developed for the S2 concept, the engine develops a characteristic linear torque band that makes it easier to use on the street. Below a comparative power/torque graph between S2, S1 and RB26 DETT Standard engines.

Nismo focused on improving pick-up and response compared to the S1 model, aiming to improve track performance. Final power figures are 450ps and 45kg-m of torque.

R2

Like the S2, the R2 engine is the natural evolution of its older brother, the R1 Concept. As the name suggest, this power-unit is Nismo response to owners who enjoy tracking their car on a more regular basis. Nismo philosophy is based on a fine tuned balance between power, responsiveness and durability/reliability; while the R2 may pale in front of 700ps + set-ups from other tuners, the engineers wanted to create an engine that would allow owners to put their ride through their pace on the track and then drive back home with peace of mind.

The list of differences between S2 and R2 is noticeable and quite long. Let's start with the R1 Concept base:

- Engine block: N1 Version
- Pistons: N1 Version
- Piston rings: N1 Version
- Exhaust manifold: N1 Version
- Main bearings: Nismo
- Conrod bearing: Nismo
- Head gasket: Nismo 0.9mm
- Engine gasket kit: OEM - Standard
- Spark plugs: Nismo racing type #8
- Turbochargers: Nismo R1 turbo kit
- Turbo outlet: Nismo large capacity type
- Heath-shield tape: Nismo 50mm
- Air flow meter: Nismo large capacity type
- Oil pump: Nismo reinforced
- Oil pump plate: Nismo
- Air filter: Nismo
- Timing belt: Nismo reinforced
- Exhaust manifold spacer: Nismo

As you can see almost everything is replaced with brand new Nismo parts. Amongst the most noticeable difference is worth noticing the presence of the N1 engine block, the same model originally mounted on the BNR34 Nür spec.

The N1 block is significantly stronger than the Standard one and has been extensively tested during racing in both the Super Taikyu series and the Nürburgring 24h.

The second component that stands out is the R1 turbo kit.

This kit is based on the N1 model with metal internals (instead of ceramic). Made by Garrett, they develop slightly more turbo-lag in favor of higher durability. However, Nismo took things a step further in developing the R1 kit and fitted the N1 base model with higher capacity ball bearings and reinforced actuator attachments to create an even more durable set-up.

The final step to finish the conversion to R2 is the same as the one for S2, but just with a different, dedicated camshaft and ECM unit.

- Fuel injectors: R35 GT-R - Nissan OEM 570cc
- Fuel delivery pipe: Nismo R35 conversion
- Camshaft: Nismo R2
- ECM: Nismo R2
- Engine cover: Nismo R2 exclusive

Completely hand-built, Nismo takes pride in assembling the R2 units with a very high degree of precision, aiming to optimal internal crank and pulley balance to deliver aggressive acceleration and peak torque response at lower revs.

Final power figures are 500ps and 48kg-m of torque.

Nismo engines are not necessarily the most powerful and definitely come with high price tags, but when it comes to total package, balance and pedigree deeply rooted into racing, they are probably the best choice. What they lack in terms of neck-bending power figures, they compensate with OEM quality components, factory pedigree and reliability. With Nismo being an expensive option, it's quite rare to see models with these engines fitted to customer cars. The only tuner that, in my eyes, can compete in terms of allure is Mine's.

Back in the days Nismo raced a Z-tune prototype at Nismo Festival in a Tuners Battle against all the major names (including MCR and Top Secret) and scored a win in 2000 and a third place in 2001, demonstrating that they can be well at the top both on the road and track.

Until next time.
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Old 18th June 2017, 08:06 PM   #69 (permalink)
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a great article by bnr34-gtr.com about the R2 package.

BNR34 GT-R: R2 Engine BNR34 V-spec II Nür Walkaround
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Old 18th June 2017, 08:48 PM   #70 (permalink)
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Great reads BHP and JPS, thanks. The only problem with something like this, is knowing I'm going to be skint (or working!) for ages more buying more parts! My car won't be an official S2 or R2, but I'd like to get as close as possible to that spec, mixed with 400R / S-Tune looks.

Really must get to a show, be lovely to see some other cars for a change, other than CT17's latest buys at JDR!
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Old 18th June 2017, 09:05 PM   #71 (permalink)
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Great reads BHP and JPS, thanks. The only problem with something like this, is knowing I'm going to be skint (or working!) for ages more buying more parts! My car won't be an official S2 or R2, but I'd like to get as close as possible to that spec, mixed with 400R / S-Tune looks.

Really must get to a show, be lovely to see some other cars for a change, other than CT17's latest buys at JDR!

are you going to Japfest 2 @ Donington on the 1st July?


several great cars will be there...................... plus BHP's !
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Old 18th June 2017, 09:14 PM   #72 (permalink)
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a great article by bnr34-gtr.com about the R2 package.



BNR34 GT-R: R2 Engine BNR34 V-spec II Nür Walkaround


Very good article thank you for posting JPS.

The price of an overhaul of the engine is eye watering £21k
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Old 18th June 2017, 09:16 PM   #73 (permalink)
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are you going to Japfest 2 @ Donington on the 1st July?





several great cars will be there...................... plus BHP's !


Yes a couple of R1's will be on show hopefully, weather permitting.
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Old 18th June 2017, 10:09 PM   #74 (permalink)
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Text from the R2 article copied below:-

#####################################

R2 Engine BNR34 V-spec II Nür Walkaround.


Stopping by for a coffee at Nismo Performance Center is one of my favorite choices when it comes to kill random Sundays afternoons. During one of my recent visits Yamada-san was installing a set of refurbished Öhlins suspensions on a BNR34 and I snapped a few shots while he was carrying out the finishing touches.


This particular model was equipped with a R2 engine as well and, considering how much fascination and curiosity there is around this powerplant, I thought I'd indulge with some extra photos.


Finished in Pearl White (QX1), it was sitting on a set of Rays LM GT4, completed by R35 brakes and rotors: a combo that is really hard not to like.


The car was fitted with other goodies as well, such as a Nismo titanium strut tower bar, intake plenum and airbox intake.


The owner is surely making good use of his prized possession, as confirmed by the tick layer of dirt on the body. Personally, given the tendency of this particular hue to yellowing over the years, I would recommend owners out there to keep it clean.


A final check and the car was ready to roll out.


Speaking of goodies, Yamazaki-san showed me this freshly overhauled Nür RB26 engine awaiting to be installed back into a customer car.


The powerplant looked like it just rolled off the production line, especially thanks to the brand new N1 block, recognizable by the "24U" code. During last year Nismo Festival a Nismo representative mentioned that the latest generation N1 blocks are stronger than the old ones, thanks to a revised production process; a claim that I'm curios to investigate a bit more. Total cost of the overhaul: a whopping 3,000,000 JPY!


I love spending time in this place: it's a great way to improve my technical knowledge and the guys are really cool. More importantly, they are genuinely passionate about their craft and, as somebody who spends most of his days wearing a tie during meetings, it's incredibly fascinating watching these artisans at work.




The past couple of weeks I've been trying to make the most of the last days of clear weather before the rainy season kicks in.


I did quite a bit of driving, mostly lapping the Wangan and stopping at Tatsumi Parking Area.


Definitely one of my favorite spots for a late afternoon coffee: cool cars and the sun setting over Tokyo - a combo that is really hard to beat.


As of this weekend heavy rain is in full swing and, like every year, it will be at least a month until the weather clears up. I guess the guys at Nismo will see me a lot more.

Until next time.

###############################
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Old 19th June 2017, 12:24 AM   #75 (permalink)
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are you going to Japfest 2 @ Donington on the 1st July?


several great cars will be there...................... plus BHP's !
I hadn't planned to, but I am off that weekend! I'll have a chat with the wife about going.
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Old 19th June 2017, 10:25 AM   #76 (permalink)
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There's also the Japshow at Santa Pod coming up soon...weekend of 8/9th July

anybody else going?
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Old 20th June 2017, 03:37 PM   #77 (permalink)
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Nice one for the link
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Old 1st October 2017, 07:08 PM   #78 (permalink)
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A few images of 2 R34 Nismo R Tunes taken yesterday.



Sent from my LG-D855 using Tapatalk
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Old 23rd November 2017, 09:18 PM   #79 (permalink)
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I didn't realise there is a R33 R Tune with R1 spec engine.

Anyone have one?

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Old 24th November 2017, 08:25 AM   #80 (permalink)
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Black R1 just arrived at ACL
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