Hi John,
The variable valve timing is only on the inlet valves and is standard on the Mazda MZR unit fitted to the SS.However the exhaust cam has been developed by OMEX ltd who set up the ecu and exhaust.
I have been watching with interest how the works racer went on,I am glad to say the engine has been totally reliable and the only race the car didn't finish was because the fuel pump came loose and disconnected itself.
So to sum up I would call the engine bulletproof!what I have done with mine is fit the suplex suspension kit which means you can use the power you have on any road surface you like.
If I can help just send me a PM and I will do what I can.
This is a drivers car!
Best Regards David
,,BSA Goldstar,Honda CB1100R. Jaguar FTypeS Porsche Cayman S
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