Engine Control for the World Time Attack Challenge
Obviously as a test platform for Adaptronic, it is important that this car gives us the opportunity to develop and test our new products. The factory engine loom for the RX7 has been installed with the engine, allowing a test platform for our new plug-in Series 6 Select ECU. In addition however, an e1280s ECU will be wired in parallel to allow either ECU to be run. This car will also run a full Race Technology data acquistion system, with a DL1 datalogger and a Dash 3 display and GPS receiver as well as the required video interfacing hardware and interfacing hardware to the ECU.
Additional sensors that we will be logging with the DL1 and the e1280s include:
- suspension travel sensors
- 3 EGTs (one per rotor, and one after the turbocharger)
- oil temperature, before and after the oil coolers
- oil pressure
- fuel pressure
- all four wheel speeds
- permanent Innovate MTXL lambda gauge
The ECU(s) will be controlling:
- fuel
- ignition
- fuel pump
- boost
- oil metering
The secondary injectors will be upgraded to XSpurt 2000 cc/minute devices, mated to a fuel rail conversion kit provided by Injectors Online. The primary injectors of 550 cc/minute will remain.
Boost is set by a 5 psi spring in the external wastegate, but controlled by the ECU with a 3-port MAC valve. The ECUs allow boost by gear, which currently doesn’t appear necessary but may be required as the power is increased.
The goal is to run E85, to increase knock margin and increase power compared to petrol.
The car will be tuned at MRC Dyno in Castle Hill, who have great facilities, a dyno in an industrial park with no residential neighbours, a great assortment of cooling equipment, knock detection hardware and other things you need when tuning, as well as Mark Chapman who is an excellent tuner. A lot of the base mapping of the engine has already been provided by Ric Shaw, who certainly knows his way around rotaries – building them, tuning them and racing them!
To know more about Race Technology products, go to www.race-technology.com
For more information on our Plug-In Select ECU Range and the e1280s ECU, please follow the link.
To get more updates on Cathy, click here.
