160 degree tsat
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
I would guess that he means, the stock tune will make the most power with stock thermostat. However its not disputed that a cooler thermostat (cooler to a point) will make the air fuel charge cooler. Allowing for more timing advance, and thus more peak cylinder pressure, and more horsepower.
Instructor
Joined: Sep 2006
Posts: 153
Likes: 1
From: Red Deer Alberta
160° thermo doesn't cool the A/F temp., there is no connection between coolant temp and A/F temp. LS2 intake manifolds are not plumbed for coolant. The computer pulls timing from coolant temp, by running the 160° t'stat you reduce the coolant temp below the temperature set to pull timing. The computer also pulls timing from intake air temp but that is helped by a CAI, not a 160° t'stat.
