if more HP is a side affect :thepan:is there any negative side affects to running at a lower temp then stock??
I can't say anything specifically for the V but running too low of a temp in a computer controlled engine can cause some self-tests to not perform which could lead to a check engine light. Other things may occur: emissions may go up (a concern if your state does the 'sniffer' test); engine may not go into closed loop quickly enough or at all leading to lowering gas mileage; engine may run rich lowering gas mileage and causing cylinder wash; thermal efficiency may be lowered too. I don't think operating a 180*F thermostat would cause any problems. A 160*F may be pushing it but since the radiators in these cars are the bare minimum, the engine may still see 190*F+ temps on a warm/hot day.is there any negative side affects to running at a lower temp then stock??