Quote Originally Posted by Limbo View Post
Low opening thermostat, not sure how much benefit it would make for track as your therostat will be opened pretty quickly anyway
I think it's likely to be a bad idea on an EFI engine, unless you knew for sure that the engine was running at a high enough temp to be outside of the cold running open loop map.

If you run cold (relatively), and as a result run rich, then aprt from the loss of performance likely the excess fuel gets deposited as a liquid on the bores and washes off the lubricating oil film causing accelerated wear (bores, rings, pistons), as well as getting into the oil and degrading it much more quickly.