[pgfpro]

I think it depends on the amount of fuel that is used during the pulse. Most likely it won't be that much and only slightly more then a N/A engine would be.

I just did some stoichiometry testing on my turbo car and the center cartridge doesn't increase at all in temperature after a pulse at 14.7 A/F and pulling over and checking with a infra-red gun. The added frequency of EOC is what would determine the amount of engine oil break down and a good synthetic oil would be a must to offset it.

To be fair EOC also has to have some negative effect at the exhaust valve guide since the exhaust valve itself will run around 650*C at the center of the valves head.

Today's turbo cars are all water cooled and what Daox proposed is a very good idea and I agree a extra low voltage water pump could be installed very easily.