4.2L Twin Turbo 370Z (AUSTRALIA)
 

Updated 23/04/14
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Figures: 456rwhp/338rwkw on 7.5psi. (run in tune)
540Nm @ 5216

4.2L Twin Turbo 2010 370Z: (Built and tuned by GT AUTO GARAGE)

Engine:
- Forged Internals
- ARP L19 Head Stud Kit
- ARP Main Stud Kit
- GTM Rod Bearing
- GTM Thrust Bearing
- GTM Main Bearing
- Mishimoto Alloy Radiator
- 4.2L Stroke:
GT Motorsports Hi-Rev Crank :96 mm Stroke
GT Motorsports Stage II FI pistons
GT Motorsports Rods

- Twin Turbo Kit:
- GTM Manifolds and Housings
- 3.5 x 13 x 24 Bar and Plate Core Intercooler (Rated 1000hp)
- Garrett GT28RS .86 Turbo's
- TiAL 50mm Blow-off Valves
- GTM Internal Wastegate Actuators
- GTM Steering Coupler
- Braided Oil and Coolant Supply and Return lines
- Denso 600cc Injectors
- Walbro 255 Fuel Pump
- HKS Super Fire Racing Spark Plugs
- HKS Oil Cooler
- HKS Auto Trans Cooler
- NST 10% Underdrive Crank Pulley
- NST 10% Overdrive Alternator Pulley

ECU:
- UpRev reflash
- HKS F-Con II (to be installed)
- HKS EVC Boost Controller (to be installed)

Exhuast:
- GTM 3" Dump Pipes
- Invidia - Gemini Titanium Tip cat back exhuast

Gearbox/Drivtrain:
- Custom Billet Flex Plate

Suspension/Handling:
- Tenabi Coil Overs
- Whiteline Rear Sway Bar

Wheels/Tyres:
- Forge Wheels SP-5 19 x 9.5/19 x 11
- Hancook Ventus R: Front: 245/19/35 Rear: 295/19/30

Styling:
- Seibon Carbon Fibre Front Lip
- Carbon Fibre Bonnet
- Evo-R Carbon Fibre Door Handles

Up Next:
- Custom 3" Duel Exhaust
- HKS F-Con
- HKS EVC Boost Controlled
- Craft Square Mirrors
- Upgrade Diff

The Story So Far in Pictures...

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Love it, god bless your auto

Please upgrade your diff!
Although maybe in AUS you get the VSLD standard
And wheels please? You gotta put that power down and those don't have enough rubber


Post pics of it hood open! :-)

No overheating issues with the stock bumper?

Very Nice ride!!! I def want twin turbos!!!!!:tiphat:

Awesome build, but an auto tranny on such a beast?

Damn straight!

If it's built right, more power to you!

Great build! Why did you only go with the below though?

- Denso 600cc Injectors
- Walbro 255 Fuel Pump

I'm pretty sure you're maxed out now

Freaking Epic! :tup:
could you get us some sound and video? Would love to see this beast roll. :tup:

Wow -- awesome build!

Is the current GTM flexplate broken and you need another one or did the OEM one fail and is now upgraded?

Wow :tup:

Nice build! x2 with the fuel mods????

Very nice :tup:

:yum::yum::yum:

Awesome build!!!


... However, your not getting the full potential out of your 4.2L. GT30's would be more suited for your displacement. Also running a DW300 fuel pump and a fuel return system along with 1000cc injectors would be better suited for the use of a 4.2L application.

just my 2cents...

All in all GREAT BUILD! Enjoy a fun car!

Thanks for all the awesome feedback guys
Yes the poor auto
Diff will also be done as well in the near future
Unsure of what we have stock, maybe something to check out
Wheels - All i will say is by Forged Wheels - 19/9.5+16 and 19/11+12, i will chuck up a sneaky pic soon. As for tyres i will be running 19/30/265 and 19/30or35/295or305

Will also post a pic of the engine bay.

Nope no issues thus far - the car has been driven around in 30+ degree days, was a thought to of removing the sensors that are on either side of the fangs for a bit more air flow.

AT is the same as from when i bought it back at the start of 2011, we have been tossing around the idea of going DCT or Sequential.

Thats just what came with the complete kit, pump and injectors will go bigger once the new F-Con and full tune happens.

Defineatly, will post up once the car is running again.

The OEM one cracked within the first week of getting the car back, from there we ordered the GTM Flex plate which also didn't stand up. Currently waiting for a new one to be sent, from there we are looking at custom making a billet one or strengthening the GTM one by riveting a plate onto it.

Cheers for the input all taken into conern, as previously said to the other replies, this is all just a start as it is the first in Aus to be Stroked and TT, i agree with the fuel setup needing adjustments. We want to see how the turbo's go when we up to the boost to at least 14psi. But first things first and thats finding out how to overcome the gearbox/tranny issues.