TSI AWD running 210 degrees+

[Outdorsman]

Well my cousin just bought this talon for 1600, and the previous onwer didn't know why it was chugging gas. Well I did and it was the o2 sensor which I changed yesterday. Anyway skip to today and my cousin brings the car down and I notice its running hotter than normal. It was above the middle so I changed the thermostat and ran it with straight water to make sure eveyrthing was in working order before I dumped coolant in it. Well, it still runs hot, at about 210 degrees+ and I put a mishimoto racing thermostat because thats all I had on hand, its a 143 degree tstat.

What is causing it to run hot, it does have a fmic but it never ran this hot before since he's had it. It happened so suddenly. Waterpump looks pretty old but I can't tell.


What it has:
Boost gauge
evoIII 16g real running at 15 psi whic his stock I believe
fmic
Blitz BOV non recirculated (plan on fixing it soon)
everything else is stock

I plan on block testing it today as well.

 

[1qkfwd]

Well it never gets below 70 degrees in nevada in this weather haha. I'll swap it out in the future.

Ha I didnt even think to look that your from Vegas. Its nice there year round compared to us up here in northern NV.

 

[boost97gst]

Which car?? The hot lapped car was stock 1G compression. My 14B fwd is 9.0:1

Well, my thinking was that it was a lower CR( like the stock 1g). The higher the CR coupled with higher coolant temps makes things more prone to knock, ya know. 216 isnt that high though. I notice a difference in knock counts on pulls at 190* compared to a pull at, say, 216* or thereabouts.

car is running fine. I was always under the impression that thermostats didn't matter. As in they just open sooner than others but the temperature still remians the same for the most part? I read that here so thats why I thought the 143 degree tstat was fine. I'm running between 190-203 so I think I'm fine.

Glad ya got it worked out. Hey, if it ever gets cold, just throw a piece of cardboard in front of half the radiator .