Sure thing. The temps do run much hotter in the sc'd motor. I got the temps from Troyer and guys running oil temp gauges in there GT-500's. Just as an example of the heat differences. In a naturally aspirated motor you may see a peak exhaust gas temp of 1400-1500f and thats pushing it. With an sc'd motor you will see egt's of 1500-1600f basically the second the pedal hits the floor. Running af's in the low to mid (11's in trucks) and (12's in cars) is the only thing that keeps it that cool. Any leaner and you will surpass the 1600 mark and you can kiss the valves goodbye in the stock 5.4. But getting back to your question, yes boosted motors create a lot more heat and you rely heavly on the oil and coolant to help desipate that heat. The cooler you keep things the less the risk of detonation and the more timing you can run with less fuel thus making wicked power.

 

Thanks dude.Yea, with constant (oil) temps in that 230-280 range, I guess you guys could use an oil cooler. I probably talk at least one guy a year out of putting an oil cooler on a normal truck...completely not needed. In fact, IMO, I wish there was a way to make the oil run warmer. When outside air temps get down in the low 40's, I'm already completely closing off the front of my radiator just to get my oil and tranny temps up to something remotely resembling warm! Anyways, thanks for the info...back to your regularly schedule program

 

Just curious, are there other items/mods required to switch to a cooler stat? Cooler temps would be amazing in Texas summer heat!

 

Just need to adjust the tune so the pcm knows.

 

Simple enough. I suppose its the same thermostat in the 3v mustang? Seems like you guys have researched this so while its on topic, do you suggest a certain brand?

 

It's getting past my bed time but did a quick search, looks like application goes by whether its a SOHC or DOHC mod motor. I think.

 

www.reischeperformance.com great thermostat. I believe these are ones Troyer carries too. Got mine from him for $40.

 

That happens to be the one my quick search brought up! Thanks

 

Is it just me,or is that a lot of money for a thermostat?

Last time I bought one it was between 8 and 15 bucks.

 

No its not just you. 40 bucks for a thermostat??. I just put the $11 unit in mine.

Tim

 

Better thermostat, much better flow, and a proper fit.

 

A little more info on why to run a cooler stat in a performance application can be found here. This is a great read and includes a section about thermostats about halfway down.(qouted below) Every 8-10 degree of water temp drop is the same as adding one more octane number to the fuel. Warding off detonation indeed! http://www.popularhotrodding.com/tec...ech/index.html

"Running High Ratios and Living
The factor that ultimately limits the amount of CR that can be used is detonation. The key to being able to utilize high compression ratios and have the engine survive is to understand what factors can accelerate its early onset. Here the temperature of the intake charge is probably the number one issue to address. In practice we find that for an engine on the edge of detonation, every 8-10 degrees F reduction in intake temperature is equivalent to adding one more octane number to the fuel.

Most stock engines of the post '70s emission era are on the edge of detonation and run with water temperatures in the 200-210 range. While this may be good for lower emissions, it is not good for power or staving off detonation. For a high-performance street machine running service station fuel, water temperatures of 170-180 deliver a couple percent more power and the ability to use about a quarter of a ratio higher for every 10 degrees reduction in water temperature. Your first move toward utilizing higher CRs then is to use a 170-180 degree thermostat."

 

Good read^^

 

Twinskrewed, I have a question for you. I just sent my tuner back to Troyer yesterday for him to make my performance tune. Do you think it would be a good idea for me to ask him if he can account for a 170* thermostat and have him send me one with the tune? Also while I am on the subject, do you think there is anything else worth adding without spending a crap load of money that might help performance wise?

What brand supercharger belt would you recomend with the 2.80 pulley?

Sorry for jumping subjects!

 

I would suggest calling Mike and discuss the T-stat change with him since you live up in the frozen tundra. Some of the GT-500 guys that live up north run the 170 stat in the warmer months with a kick *** tune and switch to a winter tune and 190 stat (stock) during the cold months. This is what I would do but discuss it with him. And if you elect to do it have him adjust the tunes and send you a 170 stat and a belt. He keeps all of it in stock and maybe he will make you a deal for the 3 purchases. The Gates belt is my favorite and it never hurts to have a spare. I keep my extra under the seat with the jack. Tell Mike Jason Barker sent you