Running cold.Correct thermostat fan switch combination?

[ozkiwi]

I have a new 330hp crate motor and a champion 2 row 1inch tube radiator with twin 14 inch thermo fans mounted in a shroud.For some reason the guy who installed the motor paired a 160 thermostat with a 160 turn on fan switch and the motor never runs past 140 in normal driving and fans kick in city driving so it never goes past 150 on the dial.
I have ordered a 180 thermostat with a fan switch that kicks on at 200 and off at 185 is that the correct combination?
The mechanic who installed the motor said SBC like to run cool but I cannot find any support for that theory anywhere on the internet.

[LONGHAIR]

Sounds like you are on the right track......ignore the "cool guy".
It needs to get hot enough to "burn off" any condensation that can build up internally. The heat and a properly functioning PCV system work together to remove the vapor that can become sludge.

[Rufton]

+1

[ozkiwi]

Thanks .I only became concerned when the run in oil i changed after 300 miles was really black.

[Rufton]

PCV and t-stat could be defective; not much to replace both.
Where is fan switch?

[ozkiwi]

Originally Posted by Rufton

PCV and t-stat could be defective; not much to replace both.
Where is fan switch?

thermostat is new fan switch new and on inlet manifold.

[Rufton]

Originally Posted by ozkiwi

I have ordered a 180 thermostat with a fan switch that kicks on at 200 and off at 185 is that the correct combination?

This works for me:
I like the adjustable thermostatic fan control w/ radiator drain port thermocouple probe (actually have redundant overkill fan control but thats another story). Lower radiator should be free of steam and provide a stable reference point. Mine has been reliable since 1998. I prefer 195F t-stat. I like to have the flexibility of tuning fan set point. It is likely one of those ask 10 people get 10 answers kinda thing.

I think your setup w/ TC on intake manifold will work. My intake typically runs 195F per IR gun. Yours may run 180 on hwy and 185-200 at red light. Lot of people roll like that; I just prefer a little more heat to help drive off condensate and have seen data to support somewhat lower wear at 195.