Time Attacker: Pro Stock Racing Skyline Gt-r

The time attack scene in Japan is just about to begin. As the summer’s scorching temperatures begin to fall, as hazy humidity gives way to crispy blue skies, race tracks begin to populate with a special breed of enthusiasts. Shooting for the ultimate lap has become somewhat of a way of life for some, Scorch Racing’s Suzuki-san always coming up as the best example here. But long ago, before I even came across Suzuki-san and the Battle Evome series I had the fortunate chance to meet a guy that decided to take his pursuit of speed…

…to a whole new level. Jin-san has always been very passionate about GT-Rs and back in 2006 he commissioned Garage Ito in Osaka to build him the mother of all time-attack “R’s,” that wild BNR34 I featured back in 2010. Next to the M-Speed GT-R, that san-yon is without a doubt one of the most extreme Skylines ever created, featuring a heavily customized chassis, double wishbone suspension layout front and rear and a very powerful 2.8L RB engine. It was built as a demonstration car for the tuning shop that Jin-san had always wanted to set up, a place where people could bring their cars for no-nonsense tuning and excellent maintenance, a place that ended up being called Pro Stock Racing. By 2007, when Jin’s impressive facility was built in the outskirts of Tokyo, the R35 GT-R release was just around the corner and it was decided to put the R34 on the back burner and get ready for the unavoidable race to develop and produce parts for the new-gen GT-R. Fast forward a couple of years and with the R35′s bubble sort of popped, Jin-san found himself craving for some RB-action, but it wasn’t his crazy R34 that he wanted to get back into, but rather the car that had sparked his interested in the GT-R, the BNR32 you see here. This san-ni for years had been his track day toy…

…a car that had allowed him to learn so much about the GT-R, the RB26 engine and fast, on-the-limit driving. So with the need to get back into time attacking it was the Street Class of the Rev Speed Super Battle that attracted him the most. Unlike the extreme Open Class where shops like Pan Speed, Revolution and Unlimited Works were pushing the boundaries…

…he felt the more street-oriented class was a great way to show off Pro Stock’s capabilities in making the most out of a seemingly simple R32 package.

But don’t let the somewhat sedate exterior fool you, under those stock looks lies one of the most capable and track-focused GT-Rs in Japan. Simplicity was key in the build of this particular car, Jin preferring to concentrate on the things that have a direct impact on performance rather than unnecessary modifications. So on the actual body you won’t find much aside for a pair of Nismo front bumper air intakes to help flow more air through the top part of the intercooler, Nismo hood grill spoiler…

…a set of Craft Square carbon GT mirrors and a few other additions like the Top Secret  rear fender finishers and the Nismo trunk lip spoiler.

We all know that nothing out there fits a GT-R better than a nice set of Volk Racing TE37s, and that is very much the case on this car too. The matte bronze 18-inch rims measure 9.5 inches across front and rear with a +15 offset and are shod in a M-compound Yokohama Advan A050 in what in Japan is commonly referred as “GT-R size” or 265/35/R18. But no matter how great a simple bronze TE37 may look I’m sure you are probably wondering about the massive brakes that sit behind those 6-spokes.

Jin is not a guy that likes to cut corners and thought his R32 could do with a top of the line Brembo Racing kit. Those monoblock calipers are extremely lightweight made up of an aluminium-magnesium alloy, forged into shape and housing six titanium pistons that help the PFC brake pads bite down hard on massive PFC 380 mm dimpled rotors. The rear runs stock calipers but repositioned to accommodate the larger 343 mm PFC discs.

Taking care of things in the handling department is a set of Öhlins dampers, custom valved to Pro Stock Racing’s requirements and running Eibach springs all round, 18 kg/mm at the front, 16 kg/mm at the rear. All suspension links have been replaced with Ikeya adjustable arms which also run pillow ball/rose joints to replace most of the rubber bushing.

Out at Tsukuba Jin’s R32 GT-R can lap the 2 km track in 58″779 sec, thanks also to Nobuteru Taniguchi’s driving skills but mainly thanks…

…to the car’s heart. Lifting the stock hood reveals a fully tuned motor, built around an N1 RB26 sourced from an R34 V-specII Nur. For optimal power at the track the stock ~2.6 capacity was boosted by close to 200 cc to 2.8 thanks to an HKS Step 2 stroker kit. The increased capacity is a great match…

…when wanting to run larger turbos, like this externally gated T04Z that has been bolted in place onto an HKS stainless steel manifold.  But while an increased capacity is great, if the engine’s flow-rate isn’t improved you aren’t going to get the maximum performance out of your engine. So with this in mind the head was skimmed and its water jackets cleaned out from casting residue before being ported and polished. Special valve guides followed and new valve seats cut to accept the larger valves, all topped up with HKS 272-deg duration cams.

To help maximize the intake charge and distribute it evenly to each of the six cylinders a Nismo GT plenum was also fitted, a part that was uses for many years in JGTC and Super GT. 800 cc/min injectors were selected for the job of delivering the appropriate quantity of fuel for the 1.6 bar of boost the HKS blower supplies all resulting in a 720 HP & 564 lb/ft punch of performance. Engine management is handled by, would you believe it, a stock ECU. Pro Stock Racing is a firm believer that the stock Hitachi computer is more than up to the job of accurately controlling any tuned engine thanks to their ROM-programming skills. This allows all the fail-safe controls to remain in place for peace of mind and has become one of Pro Stock’s biggest seller, customers preferring to take this route rather than forking out big money for a stand-alone computer.

Adding to the fully spot welded and strengthened chassis is this massive Auto Select billet strut tower bar…

…one of the most recognizable items in the engine bay. A Calsonic racing radiator takes care of cooling and is joined by a Pro Stock air separator tank/system.

Exterior functional simplicity is joined…

…by what is by far the most extreme part of the car, the interior.

It’s not often you see extensive and well-fabricated roll cages on Japanese demonstration cars, but Jin put safety and torsional rigidity as one of the most important factors of the whole build. This required a full strip down of the car, tons of welding and fabricating finished off with a few fresh coats of the same dark metallic red as used on the exterior of the car.

All of the GT-R’s instrumentation has been removed…

…the dash replaced with a Racepak IQ3 data logger unit…

…and the various switchgear neatly arranged in the lower portion of the center console.

The HKS EVC boost controller and Circuit Attack Counter (lap timer) are found next the HKS exhaust temperature gauge, all easily viewable from the driver’s seat.

A custom mount was fabricated to hold the Pro Stock modified stock ECU, Jin-san very proud of his company’s ECU-programming capabilities, wanting to show that big-power RB’s don’t require race computers to work properly.

When Nob set the 58-second lap time at Tsukuba this is where he sat in, a full Recaro bucket seat sporting the must-have Takata racing harnesses.

Jin-san is now happy. He has achieved what he set out to do, and now it’s time to move on to a new project. He’s put this amazing R32 up for sale and is wondering that to do next. I’m sure that like myself you are probably thinking that it’s about time he blew the cobwebs off the R34 time attack monster and began shooting for the 52-second Tsukuba lap it was built for! So what will it be Jin-san?

Pro Stock Racing

Specs:

Max Power: 720 HP at 8,200 rpm

Max Torque: 564 lb/ft at 5,600 rpm

Engine: N1 block, Trust extended oil sump, Reimax oil pump , N1 water pump, HKS step II 2.8 L stroker kit, Dynamic-balanced HKS crank, HKS 1.2 mm metal head gasket, High performance valve guides, Re-cut valve seats, Polished and ported head, Cleaned up and ported water jacket, HKS 272º 10.2 camshafts IN & EX, HKS stainless steel exhaust manifold, HKS T04Z turbine, HKS GT-II external wastegate, Pro Stock racing 90 mm front pipe by Fujitsubo, Pro Stock Racing 90 mm track-spec titanium exhaust by Fujitsubo, Pro Stock Racing V-intake pipe, Pro Stock Racing high-flow AFM, Trust Airinx filters, HKS intercooler piping kit, HKS intercooler, Nismo GT inlet plenum, Bosh Motorsport fuel pumps x2, Pro Stock Racing collector tank, Sard adjustable FPR, HKS billet fuel rail, HKS 800 cc/min injectors x6, Splitfire ignition coils, Calsonic radiator with Pro Stock air separator tank, Pro Stock Racing lightweight radiator fan pulley, HKS oil cooler, Pro Stock Racing oil catch tank, Billion power steering reservoir tank, Pro Stock Racing relocated battery (in trunk), Pro Stock Racing ECU

Transmission: BNR34 6-speed Getrag transmission, ARC tranmission cooler, Exedy triple plate clutch, Dynamically balanced lightweight flywheel and clutch cover, ATS carbon LSD front & rear, ARC differential cooler, Final 3.9

Suspension & Brakes: – Pro Stock Racing track-spec adjustable suspension by Öhlins, Eibach springs 18 kg/mm front, 16 kg/mm rear, Full Ikeya formula BNR32 pillow ball suspension arms and links, Auto Select billet aluminum strut tower bar, Brembo Racing forged monobloc racing 6-pot calipers, PFC 2-piece dimpled 380 mm floating front discs, PFC 2-piece dimpled 343 mm floating rear discs, PFC race-compound brake pads

Wheels & Tyres: Volk Racing TE37 9.5Jx18” +15 (front & rear), Yokohama Advan A050 M-compound 265/35R18 (front & rear)

Exterior: Nismo front bumper intercooler air vents, Nismo bonnet grille spoiler, Moonface tow hook, Craft Square carbon side mirrors, Top Secret rear fender finisher, Nismo rear lip spoiler

Interior & Chassis: Fully spot welded, stripped and reinforced shell, Pro Stock Racing custom multi-point race roll-cage with side impact corssbars, Carbon fiber door cards, Recaro racing bucket seat, Takata 4-point racing harness, Nismo alcantara clad steering wheel and boss, Racepack dash unit and data logger, Custom carbon instrument panel, HKS boost and exhaust temperature gauges, HKS Circuit Attack Timer, HKS EVC boost controller, Custom carbon fiber center console and switch panel, BNR34 stock gear knob

-Dino Dalle Carbonare


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48 comments
Sam
Sam

When i read 'pro stock' R32 i pictured a tubbed tube frame car with front runners and a massive bonnet scoop. Still though, i wasn't disappointed!

 

FxcKa_LuV_sHwTy
FxcKa_LuV_sHwTy

@MelloMonster5 booo!!! *Chevy better && faster* no rims

Vilko
Vilko

Does this car have a hydro handbrake? I cant imagine the stock drum set up working with the alloy hat at the rear.

2bAUS
2bAUS

Best way to build an R32 I recon. And where do I sign the petition to get that R34 out on the track???

MichaelKN
MichaelKN

Almost like Shuto Kousoku Trial 4!!! ;D So much fun about watching it! Tell them Dino, kampai!

Hondafan
Hondafan

Wow, very nice! You're right, TE37's look great.

KAG
KAG

Love the R32, such a clean line on them

RdS2
RdS2

Absolutely beautiful.

I love how original they've left it outside, with only necessary changes visible (wheels to clear the brakes, cooler, exhaust, etc). original colour, not too many decals, etc. Just bloody perfect.

I think the only shame is its become a little too much of a race car - It'd be a great street car!

JDMized
JDMized

I swear I've seen a feature of this car somewhere before. And I'm also pretty sure that Dino featured this car, I just can't recall the mag. So basically you dig up old stuff from your hard drive, change a bit the wording, and collect your paycheck? Where do I sign up?

Corey K
Corey K

I absolutely love this R32, never get tired of seeing it! So unbelievably clean and functional.

Kiseki
Kiseki

The epitome of an R32

MonKPuzzle
MonKPuzzle

seems odd that they mounted the seat harnesses so low when there is a bar running shoulder-ish height right behind the seat, isn't this meant to be bad because of potential for spinal compression in an accident?

LS1RX7_owen
LS1RX7_owen

So subtle yet completely outrageous! I love it and will dream of owning and driving it!

jzx81
jzx81

Great article Dino, this one looks like a true time attack machine.

Mechne
Mechne

That strut tower brace was made from a HUGEEE billet. A billet that big would cost around 350-400USD Why didn't they just use steel tubing?? It's cool but then again...kind of ridiculous....

Thommo
Thommo

R32 GTR (Godzilla)... The King...

apex_DNA
apex_DNA

"Next to the M-Speed GT-R, that san-yon is without a doubt one of the most extreme Skylines ever created, featuring...double wishbone suspension layout front and rear..."

 

Yet, not a single fudge is given about double-wishbone equipped FF Hondas of the '90s. Favoritism anyone?

777
777

oh this brings back memories, I think I still have a copy of the hpi that you had this featured in a few years back, good to see it's still getting good use

TimMorgan
TimMorgan

 @JDMized I wonder if they are stock photos from the builder? Most companies only want to show so much, they want  to get people to come and see them in person to know more and therefere control what information is available. The write up is different.

speedhunters_dino
speedhunters_dino

So do I!  I love R34s but R32s...it's hard not to love them just as much!

Luke Huxham
Luke Huxham

 @JDMized Wow, that's extremely rude. I have never seen this car before because I'm living outside the US like Dino mentioned, so I appreciate seeing these awesome builds. I think everyone in here appreciates its besides you of course.

Corey K
Corey K

And I want one in white!

ekka
ekka

the strut tower is cast, you can see the marks from the mold, only the outer surfaces have been machined flat and polished.

apex_DNA
apex_DNA

@Mechne Especially considering the fact that it has pivot points rendering it useless.

Mechne
Mechne

I just looked up that tower brace and it seems to sell at nengun performance for a whopping ~$750. Holyyyy....Seriously. Japanese aftermarket is unreasonably expensive.

ComJive
ComJive

 @apex_DNA yes obviously it was the double-wishbone setup alone that made that R34 so special. they didn't do anything else to it at all and it was definitely inferior to an FF honda from the '90s

K's
K's

 @777 I was wondering where i'd seen this before

JDMized
JDMized

 @TimMorgan The write up is slightly different but covers the same key notes.

Read the article Dino posted on here, and compare what he wrote on the Modified article. He covers the same key points, and the pics are identical.

If this is what he does for a living.....

I mean, there are TONS of news that come out from Japan on a daily basis (in the automotive industry), why dig up old stuff from the hard drive?

Talk about the recent Nissan Deltawing crash.

Cover Arai's (rally driver) career, never been posted here.

Cover TODA Racing facility.

Go check out some Gymkhana events (not that BS Ken Block crap).

Do more GT coverage.

How about some Super Taikyu races? How many times have you seen some Taikyu Races coverage on here?

How about do a feature on Dome Racing Honda HSV ?

Or Nissan's latest decision to release to the public the Juke-R (GT-R engine).....those are only few suggestions, instead of posting up stuff that has been covered in the past and everyone already know about. Am I picky, you bet!

Dino is one of the few gaijin living in Japan that works as a journalist. I garantee you that if there were more gaijin living in Japan doing the same exact job (report "news" to the public), the competition would be more fierce and he would have to hop his game.

I'm curious to hear what he has to say in his defense.

 

Gareth36
Gareth36

it certainly wouldn't be only $750 if it had been machined from billet that's for sure.

endo
endo

 @Mechne I've got one of them on my car,and it's more than earned its asking price.

I had a bit of an off last year, and that monster brace stopped the chassis from twisting... granted its primary function is not to stop the car from crumpling when it goes flying sideways into the undergrowth, but it kept the car rigid, unlike the a car that did the same thing a few weeks later and ended up on the scrap heap with the two strut towers collapsed in on themesleves.

TimMorgan
TimMorgan

 @GraysonParker  @JDMized  @speedhunters_dino 

JDMized has a legitimate point according to neo classical economicals and international accounting pracitise, garrenteed cash flow is the objective (search, Groupon economics and figure the implications). Speedhunters seem to be using the 'free' content as a loss leaders, ie, hosting and content cost, (tax right off) weighed against a back end pay off, i.e photo book and clothing. In the vain of capitilisim (the intenational standard system), the people will decide what is best.

 

The internet community doesn't pay for content, they steal it, offer it for free and get a following, passion equals happy to pay for mark up, = win win.  There is so much content out there, how offen do you come accros the same stuff? If you do it's only a click away from another free article or blog. Its the search time saved and diversity of content speedhunters provides that keeps us coming back multiply times a day (if like me). most of us have very limited time constaints, speedhunter (along with other sites) provide the users with a happy trade off.  

 

 

 

 

 

JDMized
JDMized

 @speedhunters_dino  You're right, I'm not required to read your stuff.

Since you have a tendency to post stuff on here that you shot from the past, I'll just wait for those features instead (it's free!!!!).

I'll stop my subscriptions with mags like Super Street/ Import Tuner and Modifed.....and just wait for the free posts on here.

(Now, if everyone would think like me, you wouldn't have a job, think about it for a second!).

 

Yes I said "contracted by Modified" (or Multi Media Link, or be a freelancer, whichever you prefer). I believe you get paid to write those articles for those mags don't ya?

So stop being a little dick 'cause I'm actually one of those guys that contribute to your monthly salary (subscribing to those mags, guarantee them a steady flow of cash, do you understand?).

If everyone stops subscribing to their fav. mags and just wait for the features to be posted on the net, (since you "feel the need to share") mags would go bankrupt. Pretty simple concept :) 

speedhunters_dino
speedhunters_dino

 @JDMized  @TimMorgan Alex, oh sorry, JDMized as you call yourself these days, I sometimes post stuff that I shot for magazines in the past as I feel it's worth showing to other people around the world.  If you think about it - amazingly enough - not everyone in the world lives in the US, hence I feel the need to share these awesome cars I have previously shot for (US) magazines with all our readers.  Again, you aren't actually required to read any of my stuff, but the fact that you come back time and time again is something I take as a compliment :)

JDMized
JDMized

@Rotary Dino is contracted by Modified. He took the pictures for the magazine. He has the copyright (along with Pro Stock). The truth is, I am just damn jealous someone goes to a shop, take some pics, writes an article and publishes it more than once. Where is the hardwork in that? I wanna have a job like that where I keep submitting my work over and over again for the next paycheck.

JDMized
JDMized

@Rotary @TimMorgan There's no accusation here. I simply saw a work being re-posted. Dino and Pro Stock have the copyright. But there's a fine line between showcasing something of the nature as news, or simply as a regular feature. The feature of the R32 in the mag for example, cost $$ to be published. Eventually once the news became old news, it turned free to the public. All I'm saying is, there are tons of other interesting news coming out of Japan daily.....post other stuff instead.

Rotary
Rotary

 @TimMorgan  @JDMized I vote innocent until proven guilty, obviously speedhunters didn't take the photos so they probably had permission to use them or something of the sort. If modified doesn't mind than why should I? In the end they are just trying to show people builds they haven't seen before and they accomplished that. This is my first time seeing the car and I'm glad I had the chance to read about it.

.

 

TimMorgan
TimMorgan

 @JDMized Huge effort, enough passion to be fruit.  Whatever speedhunters decide to post is bigger than cantering to everybodies individual interest, I enjoy what they produce and feel privledged for the insight they provide me from all arourd the world at one site, when I'm all the way in New Zealand.  I'm not defending, rather, I have a different approach. There will be many reasons why his post (article?) is the way it is. Rather than a direct attack on his work, I was hoping by putting my response out there it would endear him to provide an answer to the pictures question. Providing a basis to then discuss how this situation came about. His non answer will is answer enough, we the readers (as we are doing right now) will take note along with said boss and if he does answer, then question and accusations will be solved. 


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