Originally Posted by
Ian S
If you were stationary, heat soak might show between 45 to 55°C at this time of year.
It would on mine.
Ambient currently might be, what 27°C?
Plus engine bay heat.
The main rad, at 90°C, may be warming up the charge cooler rad a bit at low speeds.
Your pipes and header tank and charge cooler and almost all the water is in the hot engine bay.
Your air filter is sucking in warm / hot air too? Just moving that so it draws ONLY front cool air might drop yours temps a few °C. Someone told me he got, IIRC, 6°C lower by doing that, but with an inter cooler.
If you want cooler temps, maybe a front mounted inter cooler is the way to go?