R34 Gt-R Project

[carbonjunky]

Hi Everyone!

I recently purchased an R34 GT-R having owned a R33 GTS-t before i always loved the skyline!

Im planning on modifying just about everything and looking to have a nice tuff streetable and semi trackable GT-R by the end of it.

The car is a 1999 R34 GT-R V-Spec in factory white purchased from a private sale (carsales.com.au) car is very clean apart from a couple of very very minor things which nobody else would care about but me (im very picky i guess) they are easy DIY fixes,

but im very happy with the car money well spent in my eyes.

The car has done about 100000kms, the stock cluster was replaced with a nismo cluster at 80000kms

Its mostly stock with a few tastefull mods:

• Apexi Power FC D-Jetro
• Apexi N1 Evolution catback exhaust
• Apexi Super induction kit
• HKS EVC boost controller
• HKS turbo timer Type 1
• Skylab TSC
• Nismo 330f steering wheel with works bell boss and quick release
• Nismo 320km/h cluster
• Nismo multifunction display
• Nismo super coppermix twin plate clutch and flywheel (im very impressed with this clutch, its very light and easy to use, you wouldnt even know it was a twin plate)
• Nismo side skirts and rear pods
• Nismo LED Tailights
• Nismo braided brake lines
• Project Mu slotted rotors and pads
• BJ Union HID Lights
• Ganador Mirrors
• Tein Super Street Coilovers

and a few other bits and pieces not really worth mentioning.

focusing on one area at a time first things first...

Ive decided to build the engine straight up because im a little bored of the factory power, im looking for something responsive and streetable, but something that can be violent at the same time, and reliable ofcourse.

Most of these ideas came from friends who have done this before, this is my first build.

Ive chosen the RB30, then got talked into stroking it to a 3.2l for the extra torque and a T04Z for some response hopefully.

Some of the parts are as follows...

• Prepped RB30 block
• Prepped RB26 head
• Nitto 3.2l Stroker Kit
• Nitto oil pump
• N1 water pump
• Tomei Procams 280 degree 11.5 IN and EX
• Tomei cam pulleys
• Darton sleeves
• Supertech valves, springs, etc
• 6boost exhaust manifold
• Hypertune intake manifold <---- Still to be orderd
• Rips Crank Girdle
• Garrett T04Z .82 rear
• Turbosmart 50mm Progate
• Extended Sump

Engine is on the build, so it shouldnt be too far away unless we run into problems (knowing my luck)

it will be a little while before the engine goes in becuase i still need fuel system, intercooler, and so on.

While the engine is out i want to repaint the engine bay and have all the wiring hidden so everything is nice and neat.

Heres some photos from carsales.com of the car just before it arrived

Ive had it for about 3 months now and im very pleased

[GTRNUR]

Subscribed!

Pretty dam huge cams for a stroker. Personally i'd be aiming for something more in the step 1+2 range, to keep the usable torque band as wide as possible. Ive not read anything about the Nitto 3.2 kits before either. It would be interesting to know what the bore and stroke are that they are using.

[FineLine]

Agree with above. those cams would be more suited to a drag spec engine rather than a responsive torquey street/track setup.

Should be an awesome machine when its done.

[maclarenf1]

Subscribed!

Pretty dam huge cams for a stroker. Personally i'd be aiming for something more in the step 1+2 range, to keep the usable torque band as wide as possible. Ive not read anything about the Nitto 3.2 kits before either. It would be interesting to know what the bore and stroke are that they are using.

+1, going to be one mental build

[N1GTR]

Interesting; why the choice to go for the Nitto 3.2L over the Spool 3.4L?

Definatly will be reading all this thread

[FineLine]

Interesting; why the choice to go for the Nitto 3.2L over the Spool 3.4L?

Definatly will be reading all this thread

Possibly because the spool is not a counter weighted crank ?

[N1GTR]

There's a few other reasons (along those lines) i can think of, just wanted to ask someone who's bitten the bullet and handed over the cash

[carbonjunky]

wow thanks for the quick reply guys

i was told originally nitto was making a 3.4l aswell but it was scrapped and they are now only offering the 3.2l so i went with that

as for the bore and stroke of the kit im not sure to be honest but ill find out for you

the cams where recomended buy my friends, if they arnt suitable then they can always be changed i dont mind, like i said its my first build, but with people like you guys throwing me hints im sure ill be pointed in the right direction, its still a while before its going to be ready, plus i havent got the rest of the things i need like fuel system and so on...

ive learnt that all this building and modding is VERY EXPENSIVE lol its cost me an arm and a leg to get to where i am but i dont mind its been a bit of a dream of mine i want to get it out of my system!

thanks again for the quick reply and ill try and keep this as up to date as possible!

[carbonjunky]

bore is 86.5mm and the stroke is 91mm pretty sure

[GTRNUR]

bore is 86.5mm and the stroke is 91mm pretty sure

I just found the kit on the high octane site and it says 90mm stroke x 87mm bore to make 3.212cc. Rod ratio is 1.69:1 with a 6" rod. At 8000 RPM that makes your piston speeds peak at 38.8m/s and an accelerate rate from TDC/BDC of 40.2m/s^2.

I suspect the reason Nitto abandoned the 3.4 project would be that piston speeds get pretty crazy with the 95mm stroke (43m/s^2 acceleration rate). But more importantly there is less material overlap between the mains and big ends which reduces crankshaft flexing and whipping.

The only way to make a 3.4 crank that would be as strong as a 3.2 or even a stock RB30 crank is to increase the diameter of the mains bearings another 5mm or so and then aligh bore the block block to support larger main bearings from something like a BMW or Ford Clevland engine. Oh boy are you taking big dollers then though. If I had to guess, RIPS probably did something like this with their 3.3lt engine.

[carbonjunky]

heres some other pics of the car

[carbonjunky]

heres the interior as it is now

ill admit the works bell quick release is very high quality

[SimonR32]

Make sure you get a T4 divided rear on the T04Z and also a divided manifold!

I had the same setup on a 2.6L and it was a weapon, should be awesome with the extra 600cc

Good luck, I'll keep a close eye one it

[carbonjunky]

hers some pics of the turbo setup

is this what you meant simon with the divided exhaust manifold?

[SimonR32]

Manifold is what I was talking about... Can't see the exhaust inlet of the turbo to tell!

[jangles]

.82 single will be fine on a 3.2, no need for the divided turbo when youve got more cc

[carbonjunky]

boaght the turbo setup a while ago, i think the manifold and turbo are both devided

[mattlikewhoa]

This is going to be one heck of a build!

[HEKT1K]

Looking forward to this! Looks very promising

[ssjTitan]

Looking forward to see how this build goes!