Welcome to RallyGT4.com

Here you will find info about my two Celica All-Tracs and MR2

Current Plans

The motor is going to be replaced shortly with a forged longblock with larger cams, larger turbo, larger injectors, and a custom intake manifold. The goal is over 400awhp on pump fuel and moderate timing advance.

Short List

Chris Kattage forged shortblock, cylinder head work, fuel rail, and intake manifold. HKS Camshafts, GT30/40R Turbocharger, and IS*R TMIC is the current plan. More details can be found here .

History of My Celica ST185

Welcome to my Celica GT-Four Website. Known in the U.S. as the Celica All-Trac Turbo, chassis designated ST-185. Currently pounding out the power with over 180,000 miles on the 15 year old chassis. In stock form, the U.S. ST-185 showed 200 Horsepower and 200 ft.-lb. of torque. I'm hoping to locate a near by AWD dyno to get an accurate figure. Looking to have upwards of 290HP and 300 ft.-lb. of torque at the engine at approx. .9 bar. A Blitz Access ECU has been installed. WIth this I have fuel and ignition maps to 1.2 bar, but I'm holding off turning up the boost until I get another Intercooler. At this point I hope to have over 325HP and 340 ft.-lb. of torque at full boost pressure of 1.2 bar.

The Engine Block has approx. 14,000 miles since complete rebuild featuring JE pistons, with ceramic counted crown and skirt; lightweight stock rods; and cross drilled forged crankshaft (stock part). The Cylinder Head was rebuild (again) approx. 2,000 miles ago. It has a complete race port and 1mm oversized valves. The T-VIS (Toyota Variable Induction System) has been eliminated as the Intake Manifold has slightly upgraded pluenum and port matched to the Cylinder Head.

The Turbocharger has an upgraded Compressor Wheel. A T04-E 50 trim has been installed for greater midrange and a little better top end. Boost is controlled via TurboXS High Performance Mechanical Boost Controller. Excess boost is routed to atmosphere by means of TurboXS H34 Bypass valve. In the near future this will be re-routed back into the intake, as originally designed. The T-VSV (factory boost controller) has been disabled to provide more accurate and stable boost with the TurboXS model.

The Clutch and Flywheel have been upgraded to a ClutchMasters St. 3 (HDTZ) clutch kit and FIdanza Flywheel (~10lb.) The Gearbox fluid is Drydene/Castrol 75-90w Gear Oil. Plain old ATF (automatic Transmission Fluid) has been known to be a worthy upgrade, as it makes shifts more smooth on an old gearbox. However, no 'special' fluid will help you if your syncros or gears are badly worn.

The stock suspension has been replaced with DMS 40mm Coilovers. Featuring 30 way adjustable, internally valved, bump and rebound setting. The huge 40mm pistons help desperse the heat and provide a much better damper for Club racing and Rally use. Fitted with 350 ft.-lb. front springs and 250 ft.-lb. in the rear, this custom matched spring rate was built by Jamie Drummund, Owner of Drummund Motor Sports, Austrailia. The DMS coilovers are not the only upgrade of the suspension system. Whiteline Front and Rear Strut Tower Bars have also been installed. ALong side an Adjustable Rear Sway Bar and SuperPro Bushings.

To add to it, I'm rebuilding the engine once more. Updates will be available soon.

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