is here. I am about to try an experiment with my truck, to see if I can wring better MPGs out of it without creating new problems. Part of this experiment will be a 205-degree thermostat and Evans Waterless coolant. Shortly after this equipment is installed, I'm going on a 9-hour road trip. It'll either be a grand success or a big failure.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Good luck

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Ronnie
http://www.cardomain.com/ride/2714941

I am considering removing the 160* stat and using a 195* or would you think just go to the 205*? Any other suggestions for Florida. (Oil grade)

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir

Using a 160 stat means throwing your gas money out the tailpipe. A 180's better, and a case can be made for a 195. 205's probably pushing your luck with regard to carburetor heating and attendant hassles (and it's no good saving money in fuel that goes through the engine if you're going to lose it via extra evaporation of fuel that doesn't go through the engine).

Maybe wait til I've done my experimental highway shakedown with the 205 stat (on the truck which is fuel injected and therefore doesn't have a carburetor to heat up and boil) and see what the results are...

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

It will be better.

The hotter you can run a motor the better the economy will be if you keep it out of detonation.

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Official Cookie and Mater Tormentor.

hey slantzilla, remind me what detonation is? something to the effect of when your plug fires and the affect it has when timing isn't right. i'm close i thnk, but not 100 percent.

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71 Dodge Dart Custom 4-Door. 86K original. A/T. Blue with white vinyl top. Blue interior. 225 SL6. 1 barrel, new fuel pump, autolite platinum plugs, fuel line upgrade, new shocks, new drum brakes and hardware, A/C, all stock

I just replaced my factory 195 degree thermostat with a 180 thermostat, now you tell me I should have put in another 195?
How cool is too cool on the numberless temp gauge? Mine runs a little above the first line, in the normal area, about 11:00 is that OK, or should it be warmer?

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Grandpa's 1974 Dart Custom 4 door 225 auto, Aluminum Radiator, 1920 Holley.

180 is known to work well in daily-driver slants. The problem, as I mention, is that even if the engine will run fine with no detonation (and better fuel mileage, and cleaner emissions) with the higher-temp thermostat, there are secondary issues to consider -- such as increased engine compartment heat causing carburetor-related difficulties (fuel boiling). If you can keep a handle on those, then yeah, 195.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Michaels,

I run a 195 degree Stant stat and my gauge runs at the same spot, 11:00. I have a 212 switch in the radiator tank to kick the fan on. That is about as low is I want to go for the winter and still have good heat and mileage. The mileage stays consistent now.

Now that we are having 90 degree plus days, the car still runs at the same temp. The fan is finally coming on now and then, only at lights or if I am in stop and go traffic. Otherwise it never comes on. In the winter months it would never turn on at all. It was sure nice to have the car warm up quick on those cold 20 degree mornings.

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

It's bound to work. Will you be using Premium?

I have found that the mileage is better with more octane on most of my cars unless it is rather cold out. Yes it has to do with the way they are tuned. The extra mileage more than offsets the price difference.

Running the engines ideal timing just seems to always work better than backing it off to compensate for lower octane. Whether you do it yourself on an older car, or the computer does it because of input from the knock sensor on a newer car.

I read the other day if the cylinder wall was hotter, the oil is thinner and therefore more MPG

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

Not really.

Hotter engine is more happier than a half way warmed. I see this all the time with Tulip, a carb 2.2 caravan on colder weather, it's unhappy and bucks a little and slight bog at each take off till it get enough heat in a engine.

It's the ease of igniting "LEANER" mixture is easier when engine is hot and mixture is properly suspended in the flow/swirl ESPECIALLY with center fed manifolds or dual carb.

Cheers, Wizard