TCCoA Forums banner

1 - 5 of 5 Posts

·
On Probation
Joined
·
2,019 Posts
Discussion Starter #1
I did not write this but I found it over on a grand prix site but is is sound princaple and can help us. Have you ever wondered why the factory thermostat has a small hole with a bead in it. The main reason for this is because it lets traped air out and a tiny amount of coolant out when the thermostat is closed and allows earlier opening. Lets say you ice the manifold down and the thermostat is closed at the track you stomp it at the light the water around the cilinders gets very hot and coudl result in detonation because no water is circulating because the thermostat has not had a chance to open up yet. If you drill 4 very small holes mabey a .05 inch or 1 mm hole in the thermostat it will allow a small amout of water to flow out of the thermostat alowing it to open sooner and keep the engine at a more constant tempeture and and allow more power. It will only afect the over all temp 5 degrees.


thermostat article
 

·
Registered
Joined
·
1,338 Posts
I dont think it is much of a problem with most Fords. They use a bypass system, and water is moving all the time. Even at start up, the bypass hose pulls water from the engine, and routes it through the heater. It is going through it all the time, and when it gets warm enough, your blower motor can be turned on. This is why they need a restrictor in the ones with high flow water pumps, they can flow too much through the heater, and along with the electical charge build up, cause damage.

Not sure on the 4.6 engines.

5.0, 351, FE series all have this, which prevents hot spots.

 

·
Johnny Five is Alive, TCCoAAC Member
Joined
·
1,614 Posts
392bird, i can't help notice, but it appears we are both using March Pulley setups ;)

 

·
Registered
Joined
·
1,338 Posts
Yep, sure am. I love them. Look great, reduce drag, and light weight. I am using there P/S and Alt brackets also...

Lean and Mean!
 
1 - 5 of 5 Posts
Top