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Turbo Upgrade for VG30DETT

My Z32 TwinTurbo 2+2

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Turbo Introduction
Turbo Size Comparison
Compressor Maps
Engine Dynamics
Turbo Selection
Fuel Suply
Air Fuel Ratio
Alternative Fuel
ECU Tuning
Contact Info
ECU Forum
My Z32 TwinTurbo 2+2

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The latest:
 
06-20-2006, after the fuel pressure issue was resolved (turned out to be the wiring: use thick and short wires) went to the dyno again. The car started mis-firing right around 14-15 psi at about 5500rpm. I think I might have NA coil packs and I will definitely need a HKS DLI for hight boost. But the car made over 450rwhp with these conditions while AFR was set to 11.5. Then again I don't really need to run more boost than that on the road course. So I'm ok with the results. I originally wanted the biggest turbos that will fit in there. But now I just want to do a couple of road courses a year and mainly street driving. So these TD06 turbos are not ideal for this purpose. Basically they never see positive boost in 1st gear. They come on very late in 2nd gear. But the lag is not bad in 3rd and 4th gears. And I still need to tune the wastegate map. So the turbos themselves are streetable but the car is definitely not a daily driver. As now the queen is back to the garage to fix more issues. :-\
 
05-15-2006, finally my car is finished after trying hard to find time for it, registered and insured. Hit the dyno, a fuel pressure issue developed. But still put down 280rwhp at only 5psi.  
 
03-21-2005, towed the car home since it was just sitting in the shop and not really getting done after all these years.
 
My black 1990 300ZX 2+2 Twin Turbo. Originally a tame 1990 2+2 natrually aspirited automatic 300ZX was converted to a manual, upgraded twin turbo charged screamer.

My z project began in the summer of 2000. The car was fitted with performance upgrades never before been done to the Zs on this side of Pacific, such as Pentroof manifolds, Greddy TD06-20G turbos, Border 850cc fuel kit, stand alone engine management...
 
Our work began in the summer of 2000. Originally, I went with HKS GT3037S turbos, 56 trim, .76 A/R. But quickly it became a problem the inducer opennings are 100mm. There was no space to have intake pipes around the motor mounts. The turbos were changed to Greddy TD06-20G's with 10cm~2 housings instead. (The 'regular' 3037 has only 70mm intake openning I later found out.:-)
 
Through many conversions with Devin (Z from Japan) disscussing both our projects, I learnt Pentroof already has been making manifolds for TD06 in Japan. In the Summer of 2001, a beautiful set of pentroof manifolds arrived here through JFK airport along with a set of Border 850cc kit. Many thanks to Devin!
 
 

I miss my B&B !
Primespeed 3" cat back exhaust

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Fitted with Front Mount Intercooler

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Intercooler pipes on the passenger side around the radiator

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IC pipes

HKS Wastegate
HKS Standard Wastegate from under

Border 850cc Fuel Kit
Border 850cc Fuel Kit

Jun Cam Gears
Jun Cam Gears

TD06s-20G
TD06 on driver side

JE Pistons 90mm 8:1 C/R
JE Pistons 90mm 8:1 C/R

Jun cams
Jun cams

Haltech E6K
Haltech E6K
TD06s-20G
TD06 on passenger side: close fit
Pentroof Manifolds
Pentroof Manifolds

Arias Piston & Pauter Rod

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3" exhaust


fuel

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StopTech 13" brakes

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heads
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engine/turbo setup
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engine

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engine

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engine

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hot side

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stock : 2540 : TD06-20G : 2835

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TD06-20G vs GT2835

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side view

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hot side

Engine w/ Pentroof manifolds wrapped
manifolds wrapped
PnP ready for Z32
Haltech E11 harness

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AEM fuel regulator

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test fit front facia
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oversized oil cooler and radiator
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ready to fire

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StopTech 13" front brake w/ RP01 wheel

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driver side turbo

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front shot

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passenger side turbo, tight fit

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almost done

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Haltech E11 engine data and base maps

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powder coated IC pipes
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enginebay.jpg

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short block

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ENGINE MANAGEMENT AND ELECTRONICS

Haltech E11v2 ECU
Borsch LSU4 wideband O2 sensor w/ TE WB controller
AEM 5 bar MAP sensor
Greddy Profec B boost controller
HKS TwinPower DLI
Defi 60mm oil pressure gauge
Defi 60mm oil temp gauge
Defi 60mm coolant temp gauge
Defi 60mm fuel pressure gauge
Defi 60mm EGT gauge X 2
Defi 60mm boost gauge
DL 60mm ego gauge, peak hold & warning

TURBOS AND INTERCOOLER

twin Greddy TD06-20G 
HKS wastegate Standard X 2
HKS SS BOVs
Pentroof exhaust manifolds with dump pipes
front mount intercooler, XS core
custom intercooler pipings

ENGINE
 
JUN 272 cams
JUN adjustable cam gears
JUN valve springs
JUN valve retainers
JE 90mm pistons 8:1 C/R, coated top and skirt. 3170cc
Total Seal piston rings
Pauter X beam rods
ported and polished head
Clevites rod bearings
Ferrea 35mm intake and 30.5mm exhaust valves
five angle valve job
knife edged crank
Greddy 1.6mm head gasket
Howe radiator
Mocal oil cooler

FUEL

Border 850cc injectors
Border fuel rails
dual external Bosche fuel pumps

AEM fuel pressure regulator
SX fuel filter

INTAKE AND EXHAUST

custom intake pipings, APEX'i intakes
3" downpipes
3" testpipes with flex
3" custom exhaust for 2+2 with APEX'i N1 mufflers

CLUTCH AND DRIVETRAIN

Mueller twin disk
Power train one piece steel drive shaft

INTERIOR AND EXTERIOR

StopTech 13" brakes, rotors treated by cryogenics
KYB adj shocks
GC coilovers 400f, 300r
Stillen antis
way bars
Gracer facia

Enkei RP01 18x8.5 f, 18x9.5 r, powder coated black,
245-40-18 f, 275-35-18 r SO3 tires

 

 

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