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 Posted: Jul 25, 2018 08:21PM
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CA
Just bought a 195 F thermostat for the 1185cc build...and have the extra rad (can be blocked), and oil cooler (can be blocked) and a sump guard that reduces the airflow past the cooling fins on the transmission.

Also put new batteries in my laser temp reader....

Will let you know how everything worked out on the 8,100 mile ALCAN 5000 return trip.

 Posted: Jul 24, 2018 02:18PM
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 Thanks for that

 Posted: Jul 24, 2018 05:03AM
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N on the gauge is about 180 degrees which is where you need to be for the best running conditions.

If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jul 23, 2018 08:13PM
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 It’s now running halfway between c and n

 Posted: Jul 19, 2018 08:44AM
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CA
Quote:
Originally Posted by croc7
So what is the reasoning for drilling holes in the thermostat?  
Later A+ (some or all?) engines do not have the little by-pass between the water pump and the head. If there is no heater take-off at the back end of the head (or the heater valve is closed), there is no flow through the head until the thermostat opens. If it fails to open, the head will overheat. The holes act as a small by-pass, allowing some flow through the head.
The purpose of the thermostat is to bring the engine up to optimum running temperature and maintain it. During hot weather, it will open and stay open until the engine is shut off and cools down. In cold weather, it modulates the flow to the rad, maintaining the engine temperature, and therefore heat supply to the heater. If too many holes are drilled the thermostat loses its effectiveness and the engine doesn't maintain optimum temperature during cold weather and may be less efficient at other times.

.

"Hang on a minute lads....I've got a great idea."

 Posted: Jul 19, 2018 08:19AM
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US
So what is the reasoning for drilling holes in the thermostat?  

 Posted: Jul 17, 2018 08:31AM
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Just throw them in a pan of water on the stove and see if they open, the difference between a 160 and a 195 i am guessing would be less than 2 minutes.
They are cheap enough to buy i would just buy new.

If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jul 17, 2018 07:05AM
 Edited:  Jul 17, 2018 08:01AM
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I need a thermometer. I must have six or eight thermostats sitting in the garage. Because I always buy a new one. I’ve only need the thermometer once before and I really don’t remember what that was 25 years ago. But it would help to throw away some of these ones don’t work. 160’s 180’ and 195’s

 Posted: Jul 17, 2018 07:02AM
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Yes, I do have an A+ without the bypass spacer under the T stat housing.

 Posted: Jul 17, 2018 05:07AM
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The only difference between a 180 and a 160 is the 160 will open sooner.
I don't think it will drop the needle back to where it normally was unless the 180 had failed to open fully.

Good point on the cars with no heaters Chuck.

If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jul 16, 2018 09:51PM
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 With all due respect to everyone that answered,  The knucklehead at O’Riieles, the and a friend of mine Tom is been doing this for quite a few years. I did not know what I was running in there (180) but the needle went from quarter-inch blow normal kto 3/4+ of the way up the gauge.   So for a number of reasons I have decided that I’m gonna put  A 160° without any holes drilled into it.  In three months when it cools down or if I don’t like it I will change it back.  As matter fact I just got done about an hour ago.  Thanks again for all those who provided answers.

 Posted: Jul 16, 2018 07:21PM
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US
I run the same as malsal (180) with the addition of drilling holes for all Minis not using the heater valve outlet; such as, Mokes, and some South African cars that did not come with a heater.

 Posted: Jul 16, 2018 03:30PM
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dido what onetim just said.. BUT I drill four holes in mine.. always use a thermostat .. as water flows TOO quickly without one installed and will make the mini over heat.. later bc

 Posted: Jul 16, 2018 02:17PM
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I use a 180 degree one here in Florida with no issues.
I only drill them when a Metro or later A+ engine is retrofitted.

If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jul 16, 2018 09:27AM
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160F with 2, 1/8" drilled holes, in my case anything lower or with more hole's and the engine does not warm in cool weather.

 Posted: Jul 16, 2018 07:06AM
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What size thermostat is everyone he is?? It’s been about 90-93° here. Hot for us but not for those guys in Arizona. So what are you guys using