Troy Delissers' 2T-GE Corolla


Make: Toyota
Model: Corolla
Engine: 2T-GEU
        3T-GTE Crankshaft
        Crower Con Rods
        Arias Pistons
        HKS Head Gasket
        Toysport Ported Head
        HKS 320º Intake Camshaft
        HKS 304º Exhaust Camshaft 
        HKS Adjustable Cam Gears
        TWM 45mm Throttle Bodies
        Haltech E6 ECU
        Jacobs Electronics Ultra Team
        Jacobs Electronics Nitrous Master Mind
        NOS Sportsman Fogger System
        Tilton Aluminum Flywheel
        Center Force Dual Friction Clutch

Drivetrain: T-50 5 Speed
            TRD Close Ratio Gear Kit
            TRD Limited Slip Diff
            TRD 5.1:1 Diff Ratio

On the line at the JDRA Dec 1998 race meet. The car ran 15.1 with a slipping clutch. No nitrous was used because of the clutch. Troy won ET Sportman Class 2.


Looking into the engine compartment. A clear view of the NOS system, as well as parts of the ignition system, featuring the Jacobs Ultra Team.


After it was run in, we took the car to the local Dynojet facility, Dyno Camm. Needsless to say, we were disappointed, the numbers where not at all what we were expecting.
Having the Haltech E6 to work with, we sat down to a long tuning session, trying different timing and fuel maps. In the end, nothing we could do could make any significant gains, so we were faced with a dilema. What was wrong?
We quickly figured out that nothing was physically wrong with the motor, it pulled up to 8,000rpm 25 runs in a row. Further examination of the dyno graph revealed that just where we would expect the hp curve to take off it was leveling off, something it should not do with the cams that I built the motor with. I tentaively put forward a suggestion: the head was holding everything else back; something was wrong with the port job.
The owner of the car decided to see if my theory was correct, and authorized the pull down of the top end. When the head came off, it was apparent that not much was done to it at all, just a little de-burring of the stock casting marks, certainly not what we expected based on the ammount of money spent on the head.
So, it's off to Port Flow for the head, where in the capable hands of Rick Kemp it will be properly done. We are now awiting it's return, and as soon as we have more dyno info, it will be posted to the site. - Stephen Gunter- 5th October 1998.

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