SECURITY
VR and VS Commodores use a programmed function in the Memcal to check for a Security signal from the Key Remote via the BCM. If the Memcal does not receive the signal from the BCM, the memcal will prevent the engine from starting. This is all well and good until you put a VR or later engine into a different vehicle. Unless you run the matching BCM and Key remote, the engine will not start. To overcome this, all we do is reprogram the Memcal and disable the security function.
VT and VX V6 S/C Commodores do practically the same as listed above. When using a VT or later engine assembly in a conversion, more issues arise. VT and VX Commodore instrument clusters communicate via Serial Frequency (1 wire multiple tasks). Earlier model Commodores have a dedicated wire from the PCM to the Engine Check Lamp (MIL - Malfunction Indicator Lamp). VT's and VX's don't. The MIL is one of those lights in the dash that is activated via the Serial Frequency controller. So apart from Reprogramming the Memcal to remove the security, it will also need to be modified to create a "pin out" for the MIL.
MODIFIED
The best and most effective way of programming a memcal to suit a modified engine/vehicle is for the programming to be done "On the Fly", in real time, on a Dyno. Engines may have the same components, but age, wear and tear, service history, assembly tolerances and other factors will stipulate how well the engine performs. Real time tuning will allow the tuner to make adjustments accordingly. Programmers/Tuners that use programs such as Kalmaker do this in conjunction with a chassis dyno, and you will end up with a Memcal to suit YOUR car.
Our Modified V6 and V8, VN to VS memcals are programmed to suit the majority, not the specific. The main benefit of our chips over a specifically custom chip, programmed on a dyno for YOUR engine, is it's cheaper, but not better. These chips are a good entry level chip that do improve power, idle quality, transmission shift patterns (depending on model) etc, but have been generalised to suit all. It's a personal choice. $150 to $300 for an entry level chip, or upwards of $700 for a Dyno programmed chip.