Toyota Supra mkiv

Kevin's Mkiv

I own a Red 1994, 6 speed TT MKIV Supra imported from Japan which I bought in New Zealand during February 1998. I first 'discovered' the Supra through a Wheels magazine article (now on this site) about the 12 fastest cars in Australia. The Supra won me over at that moment with its great looks, superb handling and awesome passing acceleration. From 100 to 130 km/h it was a full half second quicker then the next fastest car in that top 12.

I am the Webmaster for this Supra website.

Trophy Race Results:

Best Performance:

  • Taupo racetrack - 45.38 secs on 6th December 1998
  • Pukekohe racetrack - 1m 9.83 secs on 16th May 1999
  • Meremere dragstrip - 10.949 @ 129.79 mph (208.88 km/h) on 7th November 2008 (60ft = 1.697 sec)
  • Meremere dragstrip - Best 60ft time is 1.554 sec on 23rd March February 2007
  • Meremere dragstrip - Best MPH is 129.85 mph (208.98 km/h) on 29th April 2007
  • Meremere dragstrip - Best 1/8 mile ET is 7.042 @ 102.71 mph (165.30 km/h) on 31st January 2010
  • Meremere dragstrip - Best 1/8 mile MPH is 104.22 mph (167.73 km/h) on 7th November 2008

Magazine Articles:

Gavin at Hi Velocity on the North Shore dyno'd my car on their Dyno Dynamics dyno on Nov 19th 2010 and I got 449rwkw at 22.5 psi boost.

Engine Modifications:

  • Master Power T70 turbo with 3.5" exhaust with AR 1.00
  • 6Boost exhaust manifold (twin entry)
  • Turbosmart 60mm external wastegate
  • Crower 272 inlet and exhaust cams (10.5 exhaust, 10.3 inlet), currently set to zero degrees
  • Street head porting and port matching to manifolds
  • Brian Crower 1mm oversize valves
  • Brian Crower rods with ARP 625 rod bolts
  • CP 86.5mm forged pistons with factory crank
  • ACT XTreme +50% pressure plate with vacuum hydraulic clutch (to reduce pedal pressure)
  • TRD clutch plate with factory flywheel
  • 600mm x 300mm x 100mm non-brand name intercooler
  • Twin 14" electric fans with 60mm thick custom aluminium radiator
  • Four factory blowoff valves (Yes, 4 of them!)
  • Custom intake manifold with 80mm throttle body
  • Huge K & N Pod filter
  • Custom cold air box and twin cold air feeds to it
  • Running a 3.5" downpipe to 3.5" mandrel exhaust system with two large mufflers making it reasonably quiet

Fuel System Modifications:

  • Rochester top feed 1000cc injectors with a Link Electrosystems 6 ohm resistor pack
  • Titan Motorsports fuel rail
  • Aeromotive A1000 -10 fuel pressure regulator with std fuel lines
  • Removed the factory fuel pressure pulsation damper
  • Single Pierburg 800 fuel pump installed in tank. These pumps are good for around 530rwkw at 11:1 A/F.

    Other Modifications:

  • Apexi (AP Engineering) PowerFC ECU with 8500rpm limit running up to 26 psi on 98 octane fuel with Nolan Octane Boost
  • Volks racing wheels (17" x 9.5" rear, 17" x 8" front)
  • Kuhmo Ecsta Supra 712 tyres (285/40-17 rear, 255/40-17 front)
  • Mid 1995 on factory BIG Supra brakes (awesome)
  • Whiteline "handling pack" with 30mm front (+50%) and 20mm rear (+30%) swaybars with polyurethane front bushes
  • Factory Bilstein shocks revalved - front +50%, rear +30%
  • Aftermarket springs (unknown brand) lowering car by about 40mm front and 30mm rear.
  • manual Turbosmart boost controller
  • TRD engine bay strut brace
  • Everything else on the car is stock

    Previous Modifications (now obsolete):

    • Garrett GT35R then Greddy T78 then Turbonetics T72 then Turbonetics T76
    • Greddy 180 km/h Speed Limit Remover
    • Greddy BBC (Boost Cut Controller) set to 4.35 volts
    • Upgraded US turbos to Garrett GT3540 with exhaust AR=0.83 and then to Greddy T78 turbo (AR=1.03)
    • 54mm external wastegate (adapted from the Jap exhaust bypass valve)
    • Upgraded stock turbos to USA turbos
    • Upgraded factory intercooler to a FMIC made up of 3 factory intercoolers welded end to end (600x275x125)
    • Upgraded Jap spec inlet cam to USA inlet cam
    • Upgraded factory fan to a single 14" electric fan
    • Upgraded to a 3.5" exhaust starting from 2 into 1 turbo manifold
    • Upgraded to a 3.5" in/out Borla oval muffler
    • Upgraded factory 16" wheels to Factory 17" wheels
    • Black 52mm boost gauge (psi) in clock location
    • Tweeked boost using a manual bleeder for up to 20 psi boost.
    • Fuelmate Fuel Controller (now uninstalled)

    Pics as at 31st August 2003.

    Pics as at 17th September 2001.

    The two silver Supras belong to Justin (left) and Andrew (center) while mine is the Red Mkiv Supra.

    Below are older pics from 1998 to 1999 era.

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    Thanks for visiting

    Last modified on Wednesday, November 24th, 2010