Cooler thermostat

[JamieB]

Hey

Wondering what everybody's opinion is on cooler thermostats when modifying xr6turbos. My tuner has recomended I fit a cooler one as my coolant temp goes up to 104 after 1 hard run.

I have mixed feelings about cooler thermostats, I think its a mask and once it's open of its going to get hot it will...

another company told me that they tried the trident 81° and they got inconsistent temperature so changed back to factory.

The other option is trident have standard temp thermostats 91° but they flow 30% more, but I have heard mixed things about these too, that it may not cool as well because the coolant moves through the radiator too fast to cool down..

Cheers

[skidxr6t]

You definitely want a cooler thermostat when modding these cars. I reckon it kinda helps to protect the auto transmission and I have no issue with the heater working well in my car (something I was scared would be the case as I love the heater).

 

Mine doesn't get much hotter than the 1/4 mark, it'll go between the 1/4 and half mark when giving it a thrashing.

 

I believe the tuner will play with the fan settings when doing the cooler thermostat.

[JamieB]

I do have a trans cooler and not worried about heater especially this time of year it is quite hot where I live.. more worried about the time it takes to come up to temperature..
I also don't belive the standard gauge is a very accurate tool to measure coolant temperature, there is a very wide window between 1/4 and 1/2 way.. it is sort of idiot proof.. I have an ultra gauge in my obd port but for some reason always displays coolant temp as -40....

[skidxr6t]

just take it for a drive for 10-15 minutes and it'll be safe to give it WOT (long as you got enough fuel or a surge if modded).

 

 

I hear the oil takes longer to heat up than the coolant and your thoughts on cooler thermostats are not incorrect, just for modded t's it's good.

[JamieB]

I just found these 50mm radiators
http://m.ebay.com.au/itm/08-13-FALCON-FG-XT-XR6-XR8-G6-G6E-V8-Turbo-Heavy-Duty-50mm-ALUMINIUM-RADIATOR-/122077761880?nav=SEARCH

As long as they fit with a large Intercooler and tranny cooler I like that idea more than cooler thermostat..

Has anybody had experience with the 30% high flow thermostats? Or playing with the thermofan cycle Temps