I would like to see engine types influence a mech's base heat capacity, based on tonnage.
Currently all that matters is how many additional heat sinks you can cram on. If you think about it that doesn't make much sense. The mass of an object should determine it's capacity to retain heat (assuming equal materials). A 1 kg chunk of metal contains less energy than 2 kg of same.
I'm not saying that an XL engine should have half the capacity of a Standard, but it should have enough less to make the standard engine a consideration for some builds.
With the new Light Fusion engine available soon this will provide a niche for all three types in the inner sphere arsenal. XL for long range or most speed, Light for mix of speed and brawling, and Std for pressing in and taking hits.
Clan will still have two engines, but their XL engine is lighter and less vulnerable than IS XL, with the drawback of less heat capacity than the Inner sphere Light Engine.
If PGI really wanted to go nuts they could take into account surface area to increase or decrease heat dissipation rates. Again, as a modifier, not as a base. The same could be applied to heat sinks.
Additionally, heat sinks and gyro's in the engine could increase capacity (to help lighten the curve) but heat sinks in the mech itself would not. They only increase dissipation, not capacity.
You could also apply a modifier to the dissipation of heat sinks based on crit space.
So it would look like this.
Engine Heat Capacity: Std > Light > XL (Clan and IS)
Engine Heat Dissipation: IS XL > Clan XL and IS Light > Standard
Heat Sink Dissipation: IS Double > Clan Double > Standard
These changes would also make it possible to have compact heat sinks and compact engines if that tech were to be developed and released as well.
Edited by Bolide, 11 July 2017 - 08:44 AM.