Hey all, just a quick one...
Thermostat, how important is it? Are there risks if its not in? What is the best type to use and are they readily avaliable (supercraps etc)?

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I'm guaranteed to break something every time, but there's nothing like getting under the bonnet and having a go!

If the thermostat isn't in and you don't use a blanking sleeve then the water is likely to go too fast to have time to cool in the radiator . Also the motor will be slower to warm up without a thermostat . They are available pretty much anywhere (supercrap etc) , not sure on best temp to get but I normally drill two 1/4" holes into the flat bit of them to allow water to circulate better than just the bypass hose while the thermostat is closed .

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there are 3 different temp ones- 74C, 82C, 88C. I use the 82. A 74 is too cold for winter use and I reckon the 88 is too hot for Oz.
Cheaper to buy em from Karcraft etc lately, rather than Superdear...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thanks for the replies, are they a specific size for the mini or is it a generic item?

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I'm guaranteed to break something every time, but there's nothing like getting under the bonnet and having a go!

It's a common size, eg a Chevy 350 smallblock takes the same one...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.