Alex Yao's 2005 420Z-TT JTuned
Alex Yao's 2005 420Z-TT JTuned
A four-leaf clover; Indian head penny; hot blonde majoring in Applied Physics—all things that you don’t come across often and extra special when you see one. Now we can add “Alyssa” to that list. This black beauty started her life in Japan as a 35th anniversary Nissan Z-car and never looked back. Canadian resident Alex Yao took Alyssa on a journey to the US that has transformed her into the 420Z that she is today.
No, that’s not a typo directed at our hemp/car enthusiast readers- the Zed is powered by a 4.2L (actually it’s 4.24L, but who’s counting) custom built VQ. When you give Alyssa a cocktail of 100 octane race gas and methanol injection, she won’t hesitate to put out an amazing 760 rwhp/713 ft-lb torque at a mere 18psi of boost. Oh yea, I forgot to mention Alyssa is carrying twins; both named Garrett. Move aside 1977 Topps #207 C-3P0 Error trading card: you just got served on the Rarity dance floor! Alyssa’s tech sheet seems to come straight from of a Grand Am race team: Darton sleeves, custom 90mm crankshaft, port & polished heads, custom valve train, Cosworth bearings, and the list goes on and on. The plethora of engine components easily places this build as one of the craziest non-corporate builds we’ve ever seen here at JTuned.
GTM 4.24L Custom VQ Stroker Kit
Darton MID T-Sleeves
Custom 90.0mm Stroke Crankshaft
Arias / GTM Extreme Duty Pistons (8.5:1 Compression)
GTM Rods
Fully Balanced and Blueprinted
Custom GTM-Spec Cometic Head Gasket
GTM Stage 3 Heads
Ported and Polished
JWT S7 Rev-Up Camshafts (262 deg. Duration / .450” (11.43mm) Lift)
1mm Overbore Intake Valves
1mm Overbore Exhaust Valves
Custom GTM-Spec Ferrea Valvetrain (Springs and Titanium Retainers)
GTM-spec ARP 12mm Head Studs
ARP Main Studs
Cosworth Rod Bearings
Cosworth Main Bearings
Fully Balanced and Blueprinted
APS Extreme Twin Turbo System
APS-Spec Twin Garrett GT Hybrid Turbos
APS-Spec Vertical 5” Deep Intercooler
HKS SSQV Blow-Off Valve
Tial 52mm Wastegates
APS 3.5” Downpipes
APS Extreme Fuel System
APS Dual Fuel Pumps
APS-Spec 880cc Fuel Injectors
APS Fuel Rails
APS Fuel Return System
HKS Fcon V-Pro Standalone ECU tuned by Sam@GTMotorsports
HKS Fcon Navigator
HKS Boost Controller
HKS Fcon Knock Amp
4 custom mapping
Aquamist Water/Methenol Injection
Greddy Evo-TT True Dual Exhaust with Custom Turbo Piping
Custom Polished Plenum
Custom ZCG Oil Cooler
Custom ZCG Power Steering Cooler Koyo Radiator
Buddy Club Racing-Spec Condenser
GTM Pathfinder Cooling System
Exedy GTM-Spec Dual Plate Carbon Clutch
Tein Basic Adjustable Coilovers
Stillen Adjustable Sway Bars F&R
JIC-Magic CF Front Strut Bar
3.3FD Differential with vLSD
Driveshaft Shop Level 5 Rear Axles
Stoptech 14.1” Cross-Drilled Big Brake Kit Front and Rear
Volk GT-S Titanium Gunmetal 19x9.5f +17 19x10.5r +18
Toyo T1-R 255/35/19f 285/35/19r
Volk TE-37 Custom-Made Time Attack 18x9.5f +22 18x10.5r +22
BF Goodrich KDW2 265/35/18f
BF Goodrich Drag Radials 295/35/18r
Rays Red Lug Nuts
C-West CF Front Lip
C-West CF Side Skirts
Top Secret CF Rear Diffuser / Vortex Generators
Asuka Prototype double sided CF hood
Asuka Prototype CF A-Pillars
Asuka Prototype CF Hatch with integrated spoiler
Asuka Prototype CF Roof
Varis CF B-Pillars
Vertical Doors Inc Conversion
OEM 2006 LED Taillights
Blue Batmobile Custom Overlays
8000K Lightbulbs
Custom ’06 Headlights
JDM Clear Front Reflectors
20% Tint Rear
35% Tint Front
Central 20 CF Engine Cover
Central 20 CF Battery Cover
Central 20 CF Fluid Cover
Central 20 CF Radiator Guide
Top Secret Hood Dampers
S2000 Antenna
Custom “420Ztt” Rear Emblem
Stillen CF A-Pillar Dual Gauge Pod
Stillen CF A-Pillar Cover
EVO-R CF Center Console
EVO-R CF Instrument Crown Cover
EVO-R CF Switch Panels
Defi Blue Racer Gauges (Boost / Temp)
Central 20 CF Kickplates
Central 20 CF Rear Strut Cover
Nismo CF Shift Knob
Bride Gias / Stradias Hyperblack Seats
Bride Seat Sliders
Takata 4-Point Harnesses
Kirk Racing Harness Bar
Greddy Auto Timer
Alpine IVA-D310 Head Unit
DLS Ultimate Iridium 6.2I 6.5" Two Way Component Set
Custom Kick Panels
Rear Alpine Type-X Speakers
DLS Ultimate A5 3-Channel Amplifier
Elemental Designs 7kv.2 6.5" Subwoofers x 7
Custom CNC machined Trunk for Subwoofers / Amplifier Display
DLS Ultimate Cables
Elemental Designs E-D
















No, that’s not a typo directed at our hemp/car enthusiast readers- the Zed is powered by a 4.2L (actually it’s 4.24L, but who’s counting) custom built VQ. When you give Alyssa a cocktail of 100 octane race gas and methanol injection, she won’t hesitate to put out an amazing 760 rwhp/713 ft-lb torque at a mere 18psi of boost. Oh yea, I forgot to mention Alyssa is carrying twins; both named Garrett. Move aside 1977 Topps #207 C-3P0 Error trading card: you just got served on the Rarity dance floor! Alyssa’s tech sheet seems to come straight from of a Grand Am race team: Darton sleeves, custom 90mm crankshaft, port & polished heads, custom valve train, Cosworth bearings, and the list goes on and on. The plethora of engine components easily places this build as one of the craziest non-corporate builds we’ve ever seen here at JTuned.
GTM 4.24L Custom VQ Stroker Kit
Darton MID T-Sleeves
Custom 90.0mm Stroke Crankshaft
Arias / GTM Extreme Duty Pistons (8.5:1 Compression)
GTM Rods
Fully Balanced and Blueprinted
Custom GTM-Spec Cometic Head Gasket
GTM Stage 3 Heads
Ported and Polished
JWT S7 Rev-Up Camshafts (262 deg. Duration / .450” (11.43mm) Lift)
1mm Overbore Intake Valves
1mm Overbore Exhaust Valves
Custom GTM-Spec Ferrea Valvetrain (Springs and Titanium Retainers)
GTM-spec ARP 12mm Head Studs
ARP Main Studs
Cosworth Rod Bearings
Cosworth Main Bearings
Fully Balanced and Blueprinted
APS Extreme Twin Turbo System
APS-Spec Twin Garrett GT Hybrid Turbos
APS-Spec Vertical 5” Deep Intercooler
HKS SSQV Blow-Off Valve
Tial 52mm Wastegates
APS 3.5” Downpipes
APS Extreme Fuel System
APS Dual Fuel Pumps
APS-Spec 880cc Fuel Injectors
APS Fuel Rails
APS Fuel Return System
HKS Fcon V-Pro Standalone ECU tuned by Sam@GTMotorsports
HKS Fcon Navigator
HKS Boost Controller
HKS Fcon Knock Amp
4 custom mapping
Aquamist Water/Methenol Injection
Greddy Evo-TT True Dual Exhaust with Custom Turbo Piping
Custom Polished Plenum
Custom ZCG Oil Cooler
Custom ZCG Power Steering Cooler Koyo Radiator
Buddy Club Racing-Spec Condenser
GTM Pathfinder Cooling System
Exedy GTM-Spec Dual Plate Carbon Clutch
Tein Basic Adjustable Coilovers
Stillen Adjustable Sway Bars F&R
JIC-Magic CF Front Strut Bar
3.3FD Differential with vLSD
Driveshaft Shop Level 5 Rear Axles
Stoptech 14.1” Cross-Drilled Big Brake Kit Front and Rear
Volk GT-S Titanium Gunmetal 19x9.5f +17 19x10.5r +18
Toyo T1-R 255/35/19f 285/35/19r
Volk TE-37 Custom-Made Time Attack 18x9.5f +22 18x10.5r +22
BF Goodrich KDW2 265/35/18f
BF Goodrich Drag Radials 295/35/18r
Rays Red Lug Nuts
C-West CF Front Lip
C-West CF Side Skirts
Top Secret CF Rear Diffuser / Vortex Generators
Asuka Prototype double sided CF hood
Asuka Prototype CF A-Pillars
Asuka Prototype CF Hatch with integrated spoiler
Asuka Prototype CF Roof
Varis CF B-Pillars
Vertical Doors Inc Conversion
OEM 2006 LED Taillights
Blue Batmobile Custom Overlays
8000K Lightbulbs
Custom ’06 Headlights
JDM Clear Front Reflectors
20% Tint Rear
35% Tint Front
Central 20 CF Engine Cover
Central 20 CF Battery Cover
Central 20 CF Fluid Cover
Central 20 CF Radiator Guide
Top Secret Hood Dampers
S2000 Antenna
Custom “420Ztt” Rear Emblem
Stillen CF A-Pillar Dual Gauge Pod
Stillen CF A-Pillar Cover
EVO-R CF Center Console
EVO-R CF Instrument Crown Cover
EVO-R CF Switch Panels
Defi Blue Racer Gauges (Boost / Temp)
Central 20 CF Kickplates
Central 20 CF Rear Strut Cover
Nismo CF Shift Knob
Bride Gias / Stradias Hyperblack Seats
Bride Seat Sliders
Takata 4-Point Harnesses
Kirk Racing Harness Bar
Greddy Auto Timer
Alpine IVA-D310 Head Unit
DLS Ultimate Iridium 6.2I 6.5" Two Way Component Set
Custom Kick Panels
Rear Alpine Type-X Speakers
DLS Ultimate A5 3-Channel Amplifier
Elemental Designs 7kv.2 6.5" Subwoofers x 7
Custom CNC machined Trunk for Subwoofers / Amplifier Display
DLS Ultimate Cables
Elemental Designs E-D
Trending Topics
That is CRAZY nice.
"760 rwhp/713 ft-lb torque" With those numbers how could it not be fun???
Originally Posted by Python2121
I wonder if its any fun to actually drive. Very cool though
Originally Posted by Python2121
I wonder if its any fun to actually drive. Very cool though
This guy went through hell with a local shop when it came to an engine build. He got screwed pretty bad. I'm glad he stuck with the car and finished it.
The guys who did the engine actually run the same set up, but w/ over 800 at the wheels.
this car is going to be one of 2 things:
1) trailer queen for shows etc.
2) car with a blown motor in less than 6 months.
VQ is not boost friendly and after perusing around the forums for the past 2 years I can't tell you guys how often I've seen then "I was just giving her a little gas when all of a sudden I felt like I lost all power".
Even built these things manage to fall apart countless times.
Guys like VRT and Forged Performance don't often go over around 450 whp (from my readings) because the components in the engine are poor and things always manage to go wrong within a short period of time.
On the flipside though: THIS CAR KICKS ASS!!!
1) trailer queen for shows etc.
2) car with a blown motor in less than 6 months.
VQ is not boost friendly and after perusing around the forums for the past 2 years I can't tell you guys how often I've seen then "I was just giving her a little gas when all of a sudden I felt like I lost all power".
Even built these things manage to fall apart countless times.
Guys like VRT and Forged Performance don't often go over around 450 whp (from my readings) because the components in the engine are poor and things always manage to go wrong within a short period of time.
On the flipside though: THIS CAR KICKS ASS!!!

thanks guys.
I've been running it daily with no problems for 4 months now I think... Take it everywhere I go...to work, from work, grocery shopping, going out, getting coffee, meets, cruises, etc etc. It makes my everyday drives more fun.
I could have bought a 911 turbo easy with the money spent on this car. Easily a slightly used Ferrari. I could have easily gotten a new Z06 and slapped on a TT and made it a 850rwhp car. But that is just no fun. I like pushing new grounds. Anyone can twin turbo anything and make big power. But not everyone can push the limits of a current platform.
I've been running it daily with no problems for 4 months now I think... Take it everywhere I go...to work, from work, grocery shopping, going out, getting coffee, meets, cruises, etc etc. It makes my everyday drives more fun.
I could have bought a 911 turbo easy with the money spent on this car. Easily a slightly used Ferrari. I could have easily gotten a new Z06 and slapped on a TT and made it a 850rwhp car. But that is just no fun. I like pushing new grounds. Anyone can twin turbo anything and make big power. But not everyone can push the limits of a current platform.
Originally Posted by Nitrouz
thanks guys.
I've been running it daily with no problems for 4 months now I think... Take it everywhere I go...to work, from work, grocery shopping, going out, getting coffee, meets, cruises, etc etc. It makes my everyday drives more fun.
I could have bought a 911 turbo easy with the money spent on this car. Easily a slightly used Ferrari. I could have easily gotten a new Z06 and slapped on a TT and made it a 850rwhp car. But that is just no fun. I like pushing new grounds. Anyone can twin turbo anything and make big power. But not everyone can push the limits of a current platform.
I've been running it daily with no problems for 4 months now I think... Take it everywhere I go...to work, from work, grocery shopping, going out, getting coffee, meets, cruises, etc etc. It makes my everyday drives more fun.
I could have bought a 911 turbo easy with the money spent on this car. Easily a slightly used Ferrari. I could have easily gotten a new Z06 and slapped on a TT and made it a 850rwhp car. But that is just no fun. I like pushing new grounds. Anyone can twin turbo anything and make big power. But not everyone can push the limits of a current platform.
nice car... My friend Chris tells me a lot about your car... (he's the dude with the white 350Z with the TATE-37s[I believe u sold him those?]) from option_spec and I've seen this car in person..... It is NICE, i tell ya..
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I like.
good Lord, that thing is incredible!!






