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| DEREK WANG |
| 1995 TOYOTA SUPRA TURBO |
| 6 SPEED |
| RED/BLACK |
| ISSAQUAH, WA. USA |
 EMAIL DEREK |
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GENERAL:
I've been tuning imports for about 5 years now. I started with a '95 Mitsubishi Eclipse which I had modified extensively. The Eclipse was the first car that I had done any real modifications to, it provided me with a lot of experience, and valuable lessons that I feel is demonstrated in my Supra.
I purchased my Supra in November of '00. I've always liked the Supra because of its combination of high power potential, handling, reliability, exclusiveness, aftermarket parts support, and looks. There really wasn't another logical choice for me. So I picked up this stock '94 6 speed with 70K miles at a dealership in Washington with full intention of modifying it heavily. Since I figured that I would be swapping out nearly every part in the car, I wasn't too concerned about the condition or higher mileage of the car. There were many things on the car that needed attention like: Leaky valve stem seals, bad wheel bearing, poor paint, small dings, foggy headlights, interior scratches, and broken air conditioning switches. But one by one, I was able to fix most of the issues and been able to upgrade often along the way. Working on the car is truly something I enjoy and I try to do everything myself except for custom welding and fabrication. In these situations, I trust my car(s) to Lowell @ L&R Racing in Coquitlam, BC. I recommend anyone in the NW United Sates and SW Canada to visit him for the best custom work and tuning in this part of the world.
I have not had my car for very long, so I feel it is still in its early stages. Big Thanks to Nils and John @ TO4R.com for featuring my car. There is still plenty more coming! Hope everyone will stay tuned!
| ENGINE:
Through my experience with other cars, I've learned to appreciate the quality and reliability of OEM parts. This is a big reason why the MKIV Supra is such a great car to modify. Many of the OEM parts can be kept even at 1000 crank HP levels. With this in mind, I've freshened up the motor with new seals, new OEM headgasket, and just added ARP Head Studs for insurance. Other than the studs, the entire motor is to OEM Specs. This allows me to have perfect reliability, drivability, and peace of mind.
Drivetrain is also stock with the exception of an ACT pressure plate and a Mueller Lighten Flywheel. This flywheel produces a bit of gear chatter from the transmission but benefits in less rotation weight, creating faster spoolup, and makes the car lighter to drive overall.
After a bit of research, I decided to go with the GReddy T78 turbo kit. I made this decision based on: performance, quality, availability, compatibility, and price. I've always had great luck with GReddy products and been impressed with not only the performance, but also the fit and finish of each item. I had encountered compatibility problems in the past with other items which barely fit by themselves, and when combined with other items of similar quality, resulted in very awkward fitment and often poor performance. This is not the case with the T78 kit and I'm very happy with it. I hope to finish adding other supporting pieces such as cams, intake manifold, and nitrous to extract 750+ RWHP with this turbo.
| FUEL:
The fuel system on my Supra was pieced together instead of store bought as a kit. This wasn't too difficult of a task but was time consuming. I started with the HKS rail and GReddy 720 injectors, then built around it with the Paxton Regulator and Filter, and Aeroquip -6 AN line and fittings. I opted to use both sides of the HKS rail as feed with one end using the stock line with the Fuel Plusation Dampener Removal line connected to the stock pump, and a -6 AN line feeding from a 2nd stock pump to the opposite end of the rail. My stock pump retains the factory 9V/12V operation while the new pump uses a constant 12V via a 10ga wire. The stock return line is connected to the Paxton FPR.
| ELECTRONICS:
Currently my Supra is controlled by the stock ECU with the HKS VPC and Apex'i AFC. I find this setup to be tested and reliable, but not spectacular in performance. Since my goal is a fast and reliable street car, I may keep this setup for a while until an aftermarket stand alone system is proven to be better in performance and reliability. | BRAKES/CHASSIS:
My brakes are slightly enhanced with aftermarket rotors, lines, and new OEM pads. My next purchase will be towards suspension and brakes. I'm looking into 14" 6 pot brake upgrade and Tein Coilovers.
| WHEELS/TIRES:
On the street, the Supra rolls on 19" Racing Hart M5 rims. Bogart rims and M/T ET Drags will be used for the strip and 18" rims with race tires for the road course. I've always been a drag racer but I plan on doing more road course work in 2002.
| INTERIOR:
A rollbar is currently in the planning stage and will be installed with Sparco seats and harnesses before the 2002 race season. Stayed tuned! | EXTERIOR:
Currently a Zeek front bumper from Japan, Japanese OEM side skirts and rear skirts are awaiting paint and installation. I plan on having the car completely repainted to ensure perfect color match and the removal of all imperfections. I chose this combination of body parts due to their simplicity in design. I wanted something to enhance to look of the car, but still allow my car to a daily driver and track car on occasion.
| PERFORMANCE:
The car was dynoed on Jan 12th '02, a week after the completion of the fuel system install. I really had no expectation on what it should/will run. I was hoping to get anything over 500 rwhp. But after the first pull of 499.9 rwhp with 16psi, I was delighted to know it still had plenty to go. The dyno day ended with a best of 634 SAE Corrected rwhp and 565 ft-lbs of torque @ 25psi (.96 correction factor). I feel that there is still a bit more to go with this setup but decided to call it quits for the day due to fouled plugs. Nevertheless, I'm still very happy with the results. After all, the car only has a bolt on turbo kit and simple fuel system. I hope to get 650+ rwhp with this setup, and 750+ with a few more mods. Even the way it is now, the car is incredibly fast, but yet almost as smooth as stock and behaves exceptionally well in everyday use.
Feb 2nd '02 I went back to the dyno for the second time after the turbo and fuel system install. This time, I fixed some vacuum lines to the boost controller and wastgate and was able to boost up to 2.1 bar (31psi), at which point we made 686rwhp and 610ft/lbs. The car was missing a bit past 1.8 bar so I was only able to make one full pass with the high boost before calling it quits. I think this is pretty much the maximum the car will do with just the T78, fuel system, and stock longblock. Next time I head back to the dyno I plan to have some more power mods installed such as: cams/cam gears, ignition system, and maybe nitrous.
Even with just bolt-ons now, its not bad, for a daily driver!
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PARTS LIST:
| ENGINE:
GReddy T78-33D Turbo
GReddy SUS Manifold
GReddy Type-R Wastegate
HKS SSQV Blow Off Valve
GReddy 3 Row FMIC
GReddy Airinx Filter
NGK 1095 Sparkplugs
ARP Head Studs
Fluidyne Radiator
Tanabe Racing Medallion Cat Back
Custom L & R Racing Downpipe
TRD Motor Mounts
FAL Electric Fans | FUEL:
GReddy/Denso 720 Injectors
HKS Fuel Rail
Additional -6 AN Fuel Line
Dual MKIV Fuel Pumps
Paxton Fuel Pressure Regulator
Paxton Fuel Filter | ELECTRONICS:
HKS VPC
Apex'i AFC
GReddy Turbo Timer
GReddy Profec B Boost Controller
Phillip Long 2 Step Rev Limiter | DRIVETRAIN:
Mueller Lighten Flywheel
OEM Clutch Disk
ACT Xtreme Pressure Plate | BRAKES/CHASSIS:
GREX Springs
KVR Cross Drilled Rotors
TRD Stainless Steel Brake Lines | WHEELS/TIRES:
Rims: Racing Hart M5: 19x8.5 (front) 19x10 (rear)
Tires: Michellin Pilot Sport: 245/35/19 (front) 285/30/19 (rear) | INTERIOR:
Veilside Shift Knob
NR White Faced Gauges
GReddy 60mm EGT Gauge
GReddy 60mm Temp Gauge
GReddy 60mm Boost Gauge
GReddy 60mm Fuel Pressure Gauge
GReddy 60mm Air/Fuel Ratio Gauge | EXTERIOR:
Zeek front spoiler
Japanese OEM side skirts and rear skirts |
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turbo: GReddy T78
pistons: oem
rods: oem
head: oem
cams:
boost: 31psi
injectors: 720cc
pumps: oem x2
fmic: GReddy 3-row
clutch: ACT pp
nitrous:
rwhp: 686 (dynojet)
circa 807hp at the flywheel
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