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These two pics from speed hunters - http://speedhunters.com/archive/2011/12/27/event-gt-gt-tsukuba-super-battle-2011-the-paddock.aspx
They say the GT-R at tsukuba super battle got a time of 58"655 which is pretty fast since alot of the faster cars were getting in the low 56's. i wouldnt say its the fastest gtr in all of japan, but its pretty flipping fast.

In the video you can see alot more of current pictures of this high speed beast! look at that custom rear diffuser that just looks amazing. also the front bumper looks crude cause they just cut out rectangles for the front coolers lol, but hey it does the job well.
The video only has little bits here and there of it actually racing non track.

from the information i can put together its using Dodson transmission internals. for its 58sec run it used HANKOOK VENTUS R-S3 285/35-20 Tires. Also note that this time is faster than there R34 which was 58"674
I couldnt tell 100% but i think its using a HKS GT800 kit... and they want to upgrade if they havent done so already to a 4.1L VR38.

Tsukuba track times for oem cars - http://www.fastestlaps.com/tracks/tsukuba.html

website - http://www.attkd.co.jp/
blog - http://blog.ap.teacup.com/attkd/
 

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I'd be interested in seeing the mods list. 4 years ago mine's r35 spec x 6 gtr did a 59.367 around Tsukuba. I would have expected the r35s to have been faster
 

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If you can run sub one minutes times at that track your car is really hooked up and you have a damn good driver. With that said I expected faster base on work done. Unfair to compare to Mine's I know, they are the Godfather of GT-R tuning. The Super Response Engine is a revelation. I would love to see them run again with a fully prepped car.
 

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very nice looking engine bay.
 

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Discussion Starter · #7 ·
Mines used different tires and this one has a little more HP... Not sure on the boost yet. Also the mines may have been lighter, well know more once all the details have been revealed. To do better than mines is awesome tho. Different drivers and different years etc. Also dunno how many laps mines needed to get that time vs the attkd gtr. Again we don't have the full picture.

Does anyone have contact with attkd?
 

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MO this car is a way more prepped car than the Mine's car that ran some years ago. At the time if I am not mistaken, Mines ran their 6.0X similar to what paparazzi has on his car. This is a track that rewards response and good suspension over outright speed. This car is ways lighter than Mine's. I don't think Mine's has posted any new time for the R35.
 

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Mine's and Attkd been going at it for a while now. Attkd have made some serious runs on that track. There was one year where their R34 beat the Mine's car by more than a second which is huge on such a short track.
 

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Discussion Starter · #10 ·
guys i just got more information here:
http://www.skylinesaustralia.com/forums/topic/385105-just-jap-racing-time-attack-r35/

We ran it on some brand new Hancook tyres we were testing out. (edit: street radial class tires)

The car is still under development and has only recently been finished so this was an early testing session, we have a long road ahead with suspension tuning, more tyre testing and a lot more.

HP wise the car is also not running at full power as yet, long way to go before that happens

We elected to build the car tough from the get go to ensure it was capable of making big power reliably - We are using the HKS GT-800 Turbo kit and opted to strap it to a built engine rather than stock.

There will be more to come, we certainly havent seen the cars full potential as yet

Watch this space!
 

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Hmmm hksgt800 and stroker. That's a great combo for a larger track. But it just proves Tsukuba does not reward powerful cars. Setup is everything
 

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Discussion Starter · #12 ·
im a little late on this one, ive been checking out this one on the WTA facebook page for a while ;) thought i would spare some time to get on the laptop and post this up...

http://www.worldtimeattack.com/index.php/pro-class-just-jap-attkd-select-r35-gtr/

Pro Class: Just Jap / ATTKD Select R35 GTR

Posted on June 8, 2012 by ianbaker

Debuting in the Pro Class in 2012 is the Just Jap/ATTKD R35 GTR.
This car has been built as joint venture between famous Japanese Nissan tuning house Autech Tsukada and Australian parts importing specialist Just Jap. It has been in a state of constant refinement for the past 18 months and at World Time Attack it will be driven by Japanese time attack specialist and Super GT driver Mitsuhiro Kinoshita.

Whilst this appear like a near standard GTR at first appearance we can assure you this is a long way from the truth. To start with this car weighs a fraction of an original GTR as the guards, bonnet, bootlid doors and rear wing have been recreated in extremely lightweight (and expensive) "dry" carbon fibre bringing the weight back close to 1500kg.

The engine is also now a "full house" 4.1 litre stroker engine developed by Autech and Just Jap to not only make huge amounts of horsepower but also an extremely wide torque band that results in exceptional exit speed from corners and reduced lap times.

The engine is fitted with a HKS 800 kit and is making "over 800 horsepower The diffs are carbon ATS LSDs front and rear and the transmission and clutch is by Dodson Motorsport. The suspension is super trick ATTKD developed gear and the rims are 18 inch SSR with Hankook Ventus Z221 tyres.

So with the GT Autogarage R35 reportedly being sold to a new home in the UK and the Mercury Q Scan car looking like it is unlikely to be finished in time for WTAC 2012, the Just Jap/ATTKD car may well be the "sole" R35 GTR in Pro Class. It will be interesting to see if one of Japans top GTR tuners can use the hi tech trickery of the R35 GTR to give the Pro Class a shakeup in 2012.

Whilst this may seem a longshot with the very limited aero and still reasonably heavy weight, stranger things have happened in the world of time attack racing and certainly the driver and team are amongst the best in the business. Another thing worth noting here is that this car still bears full Japanese registration giving us our first ever "road registered" Pro Car! To be able to "mix it with the big boys" and then drive home is something you only ever see in a vehicle such as the R35 GTR.
 

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Discussion Starter · #13 ·
Autech iirc is the same ones that made the VR engines for greddy... i could be mistaken, someone would have to ask the source.
im wondering if Autech will also be doing VR41 engines for any other Japanese tuners (ie HKS, mines, etc).
 

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MO those tuners HKS, Mine's etc, they build their engines in house. They are good enough so that they don't need outside help to build their stroker motors. Each of them have their own spin on what an engine should do.
 
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