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  • Post author
    Joel Grannas


Worlds Fastest T56 - Worlds Fastest 6-speed transmission - Supra MKIV JZA80 Grannas Racing

World's quickest & fastest 6-speed
World's quickest & fastest T56 transmission

Nicknamed "Orange Man Bad", the Grannas Supra has gone 7.17 @ 205 MPH. This is not only the fastest quarter mile time by any T56 / 6-Speed car but also the fastest MPH as well. The mission is to be the first stick shift car in the 6 second zone!!!

This 7.17 @ 205 MPH pass is on my GR1000F T56 Magnum-F transmission kit. This transmission uses the factory T56 Magnum gearset, with Liberty's Gears faceplating on 1-4. YES, THAT IS RIGHT. A FACTORY TREMEC GEARSET.

What is not any less amazing than a stick car going 7.17 is the fact its also on IRS rear suspension!!! Utilizing my Ultimate IRS subframe and suspension system! We are also knocking on the door of an IRS Supra record with a stick shift car! The current fastest IRS supra is Tony Phillips / High Velocity with a 7.09 using a TH400 transmission.

The chassis is a 25.3 setup built by Precision Chassis. The car is a 100% factory bodied supra, with carbon fiber OEM replacement front fenders, front bumper, and doors. It is still a complete supra unibody chassis, with only the strut tower area forward replaced with tube for easier fabrication of turbo/engine components.

The 2JZ engine is a Grannas Racing "BILLET2500" race package. Which consists of a Bullet billet wet block, R&R rods, Diamond Pistons, BC 3.2L crank, Headgames OEM cast ported race head, and GSC cams. The engine is machined and assembled by Brian Roche. This setup can handle up to 100psi of boost with the Bullet fire ring head gasket system. This car has a radiator, and the block and head both are water cooled, so this motor can make 2500HP and still be street driven!

The 7.17 pass was made on the Precision Promod 98mm. We ran 7.25 @ 200 on 60# of boost and pretty much ran it at its limit... We swapped it out to the 98mm for the next pass and turned it up to 70#. We actually had better 60', 330' on the 7.25 pass, so there is room for improvement, along with room for more boost. This pass was done in the mid-afternoon florida heat, so we are hoping to make "Orange Man Bad" be the FIRST EVER h-pattern, stick shift car in the 6 second zone.

--- BELOW IS THE 7.17 @ 205MPH PASS ---

Thank you to all who have helped along the way! Biggest thanks to my team of heavy hitters! My tuner Chris Delgado from Prospeed Autosports, Cale and Tinzy Aronson @ Black Magic Clutches, Doug and his team at Precision Chassis, Brad and Craig @ Liberty Gears, Tremec Transmissions, Brian Roche Racing Engines, Headgames Motorwerks, Bullet Race Engineering, GSC Cams, Driveshaft Shop, Quick Performance, Fuel Injector Clinic, Precision Turbo & Engine, Virtual Works Racing, FIGS Engineering!!!

--- 7.25 @ 200MPH PASS ---

Looking forward to an amazing 2020 racing season! Thank you to all who supported me and encouraged me to keep on going even while struggling! We finally got it!

-Joel Grannas

  • Post author
    Joel Grannas