plip1953 wrote: ↑Fri Aug 19, 2022 12:08 pm
Yes, entirely as per factory spec. And good to have it confirmed that off throttle temp spikes are not a problem.
At yesterday's Cadwell Park test day we didn't see coolant temps go above 96degC whereas in similar ambient conditions we've routinely seem temps well over 100degC. Essentially this was achieved by routing additional airflow directly to the radiator. Will now evaluate whether this lays the foundations of a permanent fix or whether we go on to try out a number of other options.
Does the aero compromise the cooling as much as it appears to? I’m not sure why but mine seems to run reasonably ok, although it has only had one track outing so far. I did spec the bigger rad setup as Tom said it was needed, albeit they reckoned the IC was fine. Mine has always been decatted, not sure if this keeps some temperatures down in the bulkhead and if this has any impact on overall coolant temps?
I do remember that whilst the 3.5 never seemed to get as hot (coolant wise) it also suffered with power loss due to heat soak, nobody seemed to complain much about it, but it was always a thing with Ariels.
The winter plan will be to explore moving the IC to the rear of the car, so it can be much larger. It’s already been done in the US, so hopefully the pipework won’t affect the drive? Then see if a silencer can be made to fit where the original IC sits….and what benefits or downsides there are. Keen to see how the improvements pan out. All looks positive.