3 replies to this topic

[richw911]

I have a 1275 metro engine and the gauge never reaches the half way mark even in the summer.

Not sure what temp stat is in there but i know modern cars run best at 90c so what is ideal for an A series?

Would the car run better if it was at the half way mark?

[Wise Old Elf]

From Minispares

"The lowest thermostat available is 74 degrees and should be the lowest one considered--82 degrees is a much better choice with an 88 degree alternative for winter driving and those with economy as the main consideration . The higher temperature the more thermally efficient the engine becomes. It is possible to run thermostats with the troublesome by pass hose blanked off by drilling 4-6 holes 1/8" in size around the priphery of the thermostat."

[mk=john]

In general, for out climate in the UK, I have found an 82 degree works best, on my 850 early mini.
John

[jaydee]

8 holes are too much, you'll have problems to warm up to temperature in a road car
1 or at least 2 1/8 hole in the stat is enough as a bypass