I drove back from the Porsche concourse in Malibu in the heat. A two hour drive, and I will admit to some spirited driving on Hiway 1. I parked in my driveway, and went out 15 minutes later to pull the car into the garage. The starter didn't budge. I have the Bosch starter, hot start relay and a Honda S2000 remote start button. The solenoid hot soaks and freezes. I solved this problem on my Corvette by switching to a light weight gear reduction starter. I guess that is what I need to do to the 914. Kinda expensive.
Bee Jay
A picture of my car.
http://www.pelicanparts.com/swapmeet_pics/Santa_Barbara_01/Pic57.jpg