Pretty interesting reading:

[DamnYankee]

I thought this was extremely interesting - especially the segment at the end about running engines at cooler temps:

CLICK

[txarkitekt]

<div class='quotetop'>QUOTE(DamnYankee &#064; Apr 30 2007, 12&#58;54 PM) [snapback]91829[/snapback]</div>

I thought this was extremely interesting - especially the segment at the end about running engines at cooler temps:

CLICK
[/b]

Quite interesting indeed. And I just put on a 160# t-stat....damnit. Oh well... I can always put the stocker back on if I need to...

[graysilverado5.3]

<div class='quotetop'>QUOTE(txarkitekt &#064; Apr 30 2007, 01&#58;00 PM) [snapback]91831[/snapback]</div>

Quite interesting indeed. And I just put on a 160# t-stat....damnit. Oh well... I can always put the stocker back on if I need to...
[/b]

I installed a tb stall and the 160* thermostat and i lost significant MPG. Anyone think its the 160* thats causing the MPG to decrease??

[txarkitekt]

<div class='quotetop'>QUOTE(graysilverado5.3 &#064; Apr 30 2007, 05&#58;48 PM) [snapback]91856[/snapback]</div>

I installed a tb stall and the 160* thermostat and i lost significant MPG. Anyone think its the 160* thats causing the MPG to decrease??
[/b]

IMO, I think that the stall is what is killing your mpg. The TB stall is a 2600? I am only going on prior knowledge--I could be wrong on that figure. Anytime you enlist a higher than stock stall, you will be revving your motor 1000-2000 rpms higher (depending upon specific applications) in certain gears. Since you are running higher rpms, you are wasting more gas. A higher stall puts your motor right in the beef of the power curve---your motor makes the most power, and uses a lot more gas at that point. I would venture to say that a 160 t-stat allows your motor to run slightly cooler, decreasing the notion of detonation, not allowing the stock fan clutch to engage, allowing better atomization of fuel/air, and to keep timing efficient. With that said, it should keep the motor running more efficiently. Just my ...

[graysilverado5.3]

<div class='quotetop'>QUOTE(txarkitekt &#064; May 1 2007, 08&#58;44 AM) [snapback]91924[/snapback]</div>

IMO, I think that the stall is what is killing your mpg. The TB stall is a 2600? I am only going on prior knowledge--I could be wrong on that figure. Anytime you enlist a higher than stock stall, you will be revving your motor 1000-2000 rpms higher (depending upon specific applications) in certain gears. Since you are running higher rpms, you are wasting more gas. A higher stall puts your motor right in the beef of the power curve---your motor makes the most power, and uses a lot more gas at that point. I would venture to say that a 160 t-stat allows your motor to run slightly cooler, decreasing the notion of detonation, not allowing the stock fan clutch to engage, allowing better atomization of fuel/air, and to keep timing efficient. With that said, it should keep the motor running more efficiently. Just my ...
[/b]

There are people with bigger stalls, and bigger cams than mine and they get better gas mileage than me. A tb stall is really a stock stall if you think about it. Its what comes stock on a trailblazer. If it was a bigger stall i would understand about the gas mileage, not its not a big stall.

[RedHeartbeat]

The coolant logic is what I&#39;ve always heard, also. Honda&#39;s been experimenting with ceramic engines and running them glowing red hot. They&#39;ve had a lot of success and get tremendous fuel mileage out of them.

[txarkitekt]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Apr 30 2007, 01&#58;04 PM) [snapback]91832[/snapback]</div>

The coolant logic is what I&#39;ve always heard, also. Honda&#39;s been experimenting with ceramic engines and running them glowing red hot. They&#39;ve had a lot of success and get tremendous fuel mileage out of them.
[/b]

Yeah, they are getting tremendous fuel mileage out of them because their thermal efficiency is nearly 90%. The ceramic engines are quite the technological step, but they are veryyyyyy brittle--they are only good for one race...so you can only really start them once and race it once before they blow up or break apart...

[RedHeartbeat]

Imagine what would happen if you hit a water puddle&#33;

[DamnYankee]

Not sure, but after reading that article, I&#39;ll probably swap mine back for a stocker.

[graysilverado5.3]

<div class='quotetop'>QUOTE(DamnYankee &#064; Apr 30 2007, 10&#58;14 PM) [snapback]91887[/snapback]</div>

Not sure, but after reading that article, I&#39;ll probably swap mine back for a stocker.
[/b]

X2, it&#39;s not like it takes long to do it. Hope it helps with the mileage. If you do it these couple of days, post up the result cuz I have to wait till the weekend to change it.