Page 1 Car Page
Page 2 Engine Page
Page 3 Turbo, Exhasust and Intercooler Page
Page 4 Cylinder Head, Fuel and Electronics Page
Page 5 Transmission Page
Page 6 Gauges Page
Page 7 The Demise of the Shadow
Page 8 2004 Formula SAE Page
Page 9 2005 Formula SAE Page
Cylinder Head, Fuel and Electronics Page
The cylinder head is a stock Chrysler 782 casting or "swirl" head. I ported the intake and exhaustleaving the intake somewhat rough and polishing the exhaust. The runners weren't opened up much or reshaped, I mainly wanted to clean up the casting and rough edges while keeping the port velocities high. I also polished the bowls. It's been said that polishing is just for show and no go but I was curious to see what it would do so I thought I would try anyway. The stock valve seats are resized to accept 1mm oversized intake and exhaust valves. The intake valves are also backcut. All the machine work done on the head was performed by Bel Engine Services in Edmonton. I also ported the intake and exhaust manifold to match up with the head. (with the exhaust manifold being a little larger and the intake a little smaller of course).
The fuel system is upgraded from the stock 33 lb/hr injectors to mopar 54 lb/hr injectors which is a 40% increase. To handle this I had a chip calibrated by Paul Velliky who now works for Turbos Unleashed. This calibration is set for 92 octane with a high boost setting of 25 psi and a low setting of 18 psi. In the low mode the spark curve mimicks the factory curve while the high setting has a little more aggresive spark curve. It is also programed for the larger injectors, a 3 bar map sensor, air charge temp sensor and active O2 sensing. My car did not come with a air charge temp sensor so I had to wire this into the SMEC when I installed the new chip. I bought the chip from Paul, then I socketed my board and installed it myself.
Cylinder Head with polished bowls and 1mm oversized valves.
Ported intake and port and polished exhaust.
54 lb/hr injector.
Hommade adjustable fuel pressure regulator.
GM 3 bar map sensor.
Air charge temperature sensor.
Stock circuit board from the SMEC.
Socketed circuit board with new chip.