I appreciate all your input! Some good points in there for sure.
I really cant compare my beta‘s 4t or the KTM’s 2t engine temps as obviously any IC powerplant is surely going to run hotter for all the more than obvious reasons. However I’m just spitballing saying i want to get the temps down 10-20 degrees as at the 130-140 im currently seeing I can barely even touch the outside cases without burning myself. I’d just like to be able to keep it within a range to where its more along the lines of being warm-hot but not to the point to where it actually can burn my leg when wearing shorts or whatever. I plan to install 4-5 different temp probes all around the bike that will give me real time (as I’m riding with air moving/flowing) temperature data from all the components i have the probes temporarily attached to. Those numbers will be my baseline to truly know if all my future plans truly do make a difference and or maybe even in some cases i could definitely possibly cause something to heat up even more as I’m not claiming to be an electrical engineer or aerodynamicist. I fully expect to probably do a bit of both throughout my journey of trying to reach more acceptable operating temperatures. I will certainly be completely transparent on both my success and failures along the journey.
I can totally say i would agree with you that the I’m very sure Stark engineers selected the appropriate bearings/bushings and accessories etc to be able to handle and support whatever the bikes set operating temps are aimed to be within as well as whatever margins all there testing revealed to be the best range. I actually did email Stark in what those temps are and what temps are within there optimum operating range for the best overall performance as well as what should be the highest temp that can be sustained before you start possibly contributing to shortening the power systems multiple components life in terms of looking in the long term data. But of course even though i sent that email repeatedly 3 times i got zero response, which i definitely was expecting.
Also, I am just making the assumption that reduced heat within the motor/controller/powertrain/gearbox etc “should” make for any overall happier and longer lasting electric operating system as a whole. It’s my understanding that the main enemy of sustainably long lasting electrical components is the ability to have a very good handle on how much heat they are constantly having to work within as well as limiting the amount of time spent above what are considered to be the maximum safe continuous temperatures. Obviously lowering it to an extreme would be even possibly detrimental due to there needing to be like a base operating temperature that all the grease/oil/lubricants need to see in order to even begin to work as they are designed to and to provide the friction reducing action they were created to combat. However i don’t see 10-20 degrees as being out of that range of normal operation.
In the end you could compare it to the rear end of the engines, since those are a bit further away from the "power source" and run bearings and a gear just like the Stark. Not in the amount of heat they are generating but more the environment in wich bearings seem to be perfectly happy and have long livespans.
Another point to keep in mind is that the oil on most Starks around the world gets really funny looking looking (pink, white, grey) due to attracting water and not getting hot enough to evaporate that. I guess this will be less of an issue with you making for better lubrication.
Again i'm not trying to be negative, o do like a good build. But just like my example from people removing the thermostat because of a feeling and actually do way more bad than good this might be the case for you as well.
I have a 2 hour Crosscountry competition tomorrow wich it will just or just not make. If it does (otherwise i will finish on the 2 stroke) i will try to make a heat signature picture of the bike for you. Then you know what the temperatures look like in a 15C degrees environment.
Edit:
But in regards of your dual radiator setup. Is your fan on all the time or at least nearly all the time? If not the bike thinks it's in normal range. If so you won't get additional cooling from more or bigger radiators.
