Aquamist HFS-3 and MINI Tank GB

[Howerton Engineering]

In the winter the DD gains can be perceived as slightly less. During "normal" driving there is less heat load and the low ambient temps can keep the car much cooler. You will still notice a big difference in hard driving and heat soak situations, but a little of the daily drive may not feel to have as big a gains as the summer months. Really this depends on how hard you drive normally too.

Also contributing is the HP level of the car, as the higher HP cars are in need of the cooling and octane a bit more than the near stock cars even in lighter load, low ambient situations. Of course, getting the right combination of meth concentration and jetting is key for each application as well.

Carry on.