Greetings from Turku, Finland!

[firehawk]

Good eyes you have there, Robokill.

The engine is quite close to a standard smallport 16-valve 4A-GE because we're a bit unsure whether we should be increasing the power further at the expense of fuel consumption. We've milled some material off the block and head, and use a TRD 0.8mm head gasket for about 11.5:1 compression ratio and adjust the standard camshafts accordingly with the cam gears. The pistons and rods have been balanced within one gram and for additional response, a 3.7kg TODA flywheel is used.

The exhaust manifold is the standard cast 4-2 one, but we've modified a set of longer secondary pipes to fit the standard manifold and run a 2" straight pipe all the way from the collector to the rear of the car. A small flow-through muffler right behind the rear bumper keeps the noise down a bit. We had to push the exhaust as high up as possible because we had problems getting the car on and off the trailer as it sits so low.

The class rules state that stock intake and exhaust manifolds must be used, as well as the stock throttle body and air filter box. This pretty much limits all performance upgrades to the engine internals and ECU.

The front wheels have 4deg of negative camber, which we've found, using a pyrometer, to be quite perfect to the springs/shocks we use. The rear wheels have something like 5-6deg negative camber, which seems to work well if it's dry but makes the car intolerable if it's wet.