The Tornado Chip has taken some of the bass note out of the exhaust and like the 327 chevy it now has a turbine like wail that is quite exhilarating. I am pleased with the power delivery after the chip upgrade as there is so much more mid-range pull, just where you want it.
The TVR now feels like a real super car! The engine revs seamlessly through the rev-range up to 6000 with ease. The power is so much more controllable than before and therefore the car is so much more driveable in normal road conditions. The torque curve is smooth and powerful and just brilliant to drive with. Power is always there in any gear you simply choose how fast you want to accelerate by changing dow to the appropriate gear. I am getting used to the gearbox and it does require a firm hand but the changes are getting quicker.
The engine now comes smartly up to temperature with the under reading guage at 72(82) and I have some heat in the heater. The exhausts are also finally turning grey instead of the sooty black colour they had before and the fuel guage is taking longer to return to empty, which is nice.
Having driven many V8 engine cars I can however detect that one cylinder is lacking power, there is a slight "off-beat" note to the exhaust that needs looking into. At 50,000 miles it could be the camshaft, which are often the first things to wear on many V8s, or a valve, but hopefully something cheaper like an injector or a plug.
There is always room for improvement, but that is what is so enjoyable about owning older cars.
I have already discussed with RPI the next series of modifications, which will be to improve the air flow of the EFI system.
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