This is my 1991 300ZX Twin Turbo.

Currently it puts out 681 RWHP and 618 RWTQ @ 28 psi

Built by SGP Racing and Tuned by Specialty Z

Willow Springs Track Day

Engine Bay

 
Dyno Video
 

Dyno Chart

*Engine and Performance Modifications:
-SGP Race Long Block-VG30DE(TT):
Wiseco 88mm Pistons(Ceramic Coated) .040 over,
Eagle Rods, ARP Rod Bolts, ARP Main Studs,
ARP Head Studs, New Nissan Rod and Main Bearings (Ceramic Coated), JWT #400+ Upgraded Cams(264 DEG/375" LIFT +4 DEG.), JWT HD Valve Springs, 5 angle radius cut valve job, Heads oil passages cleaned, Heads re decked, Ported exhaust and intake runners, Block oil passages cleaned, Block re decked, Block water passage, Block Bored and Honed using a Torque Plate, Crank balanced and welded on center weight, Crank journals polished, New Valve stem seals, New Nissan Head gaskets, New Nissan Oil Pump, New Nissan Timing Belt, New Nissan Timing Belt Tensioner, and New Nissan Lifters,EGR Deleted and AIV Deleted

-HKS 2530 Ball Bearing Twin Turbos (.64 AR)
-Specialty Z Inconel Exhaust Manifolds
-Specialty Z 3" Split Expansion Downpipes (Stainless Steel)
-Specialty Z 3" Midpipes w/Flex Joints (Aluminized)
-Specialty Z 2.5" X-Pipe w/Resonators (Aluminized)
-HKS Carbon - TI Stainless Exhaust
-Jim Wolf Tech. ECU
-Nismo 740cc Injectors
-300 Degree High Performance Fuel Rails
-Specialty Z Fuel Line Kit
-NGK Iridium Spark Plugs #8
-GodSpeed Side Mounted Intercoolers
-Jim Wolf Tech K & N Twin Pop Air Filter Charger
-Stillen Oil Cooler
-Koyo Racing Radiator

*Engine Dress Up:
-Nismo Radiator Cap
-Nismo Oil Cap
-Samco Upper and Lower Radiator Hoses (Red)
-Powder Coated (Red) Valve Covers
-SGP Polished CAS
-SGP Polished Water Pipes
-SGP Polished Upper Plenum
-Polished Throttle Bodies and Linkage
-Polished Stainless Steel Fuse Boxes
-Polished Stainless Steel Cable Cover Nissan Strip
-Throttle Cable Cover (Red)
-Timing Belt Covers (Red)
-Fan Shroud (Shaved/ Red)
-HKS Polished Hard Pipes w/ Red Silicone Hoses
-Tube Techniques Red Engine Hoses
-Chrome Balance Tube
-Chrome NA Power Steering Reservoir
-Chrome (6) Coil Brackets
-Chrome Fuel Filter Bracket
-RDZ Stainless Steel Engine Bay Bolts Kit
-Powertrix Ground Wire Kit (Red)
-Stillen Battery Tie Down
-MegaZ Polished SST 3pc Radiator Guide
-GZA Chrome Brake Reservoir Cap (Soon)
-GZA Chrome Clutch Reservoir Cap (Soon)
-GZA Chrome N/A Power Steering Cap
-GZA Rear Wiper Eliminator Cap

*Powertrain:
-Top Speed Short Shifter
-RPS Lightened Flywheel
-RPS Max 6-Puck Clutch
-Powertrix Stainless Steel Clutch Line
-Lightened Z-1 Steel Drive Shaft

*Wheels and Tires:
-Rims: Volk TE37 (White) 18 x 8.5 Front 18 x 9.5 Rears
-Tires: 275/35-18 Nitto NT-01 & 245/40-18, Nitto NT-01

*Brakes:
-Stoptech 355mm (14") Floating Slotted Rotors(Front)
-Stoptech 4-Piston Calipers(Front)
-Sport Rotors Slotted (Rear)
-Stoptech SS Brake Lines
-Front + Rear Axxis Ultimate Pads
-Powertrix Brake Master Cylinder Brace

*Suspension:
-Powertrix(HSD) Ultra-Lite Race Coilovers
-Powertrix Competition Front Camber Arms
-Powertrix Competition Front Tension Rods
-Powertrix Competition Rear Camber Arms
-Powertrix Competition Rear Traction Control Arms
-Powertrix Hicas Eliminator Bar
-NA Powersteering Conversion
-Stillen Front and Rear Sway Bars
-Carbing Front Strut Bar
-Carbing Rear Strut Bar
-Spec.- Z Subframe Spacers (Red)

*Electronics:
-APEXi AVCR Boost Controller
-APEXi S-AFC II
-HKS Turbo Timer
-AEM Wideband UEGO Controller
-DEFI Gauge Control Unit
-DEFI BF Boost Gauge
-DEFI BF Water Temp. Gauge
-DEFI BF Oil Temp. Gauge
-DEFI BF Oil Pressure Gauge
-DEFI BF Fuel Pressure Gauge

*Interior:
-Sparco Imola Seats (Black/Gray)
-Novasuede Black Trim Kit (Soon)
-Stillen 3 Pod Center Console
-Black 20% Tint (Rear) 35% Tint (Front)
-Super White Dash Gauge LED Lights

*Other Modifications:
-4 Wheel Steering Hicas Deleted
-EGR Deleted
-AIV Deleted
-Carbon Canister Deleted
-Rear Wiper Deleted
-Moroso Coolant Over Flow Tank

*Exterior:
-99 J-Spec Front Fascia / Shaved
-99 J-Spec Tinted Front Corner Lights
-99 J-Spec Rear Tail Lights and Center Panel
-90 Nose Panel
-KAIXEN HID 4200K (Front Head Lights)
-Powertrix Fog Light Ducts (White)

*Liquids:
-Redline MT90 Transmission Fluid
-Redline 75/90 Gear Oil
-Redline Water Wetter
-Royal Purple 10W 40 Synthetic Motor Oil
-Motul 600 Brake Fluid 

*Future Mods:
-Unorthodox Racing Pulley/Overdrive Water Pump Pulley
- Roll Cage

Lastest Photos:

PAGE 1: Current Mods and Pics.
PAGE 2: SGP Motor and Parts Pics.
PAGE 3: Misc Road Pics.
PAGE 4: Misc. Pics.

Check out my other weekend ride:
**94 Supra Twin Turbo