Hi all,

Bringing a thread back up again. I just had a very expensive dyno experience as my car overheated on the dyno and the techs couldn't remove the air lock. I was told that a coolant boost pump would likely be necessary however, after reading all of this I believe the stock mechanical pump is fine and that the system just needs to be burped very correctly. I have done waynes mod prior to the dyno and filled the system myself prior to them trying to purge it as well.

I am looking to see if anyone has come up with a definitive answer as to whether the 818 needs a boost pump or not. As well, does anyone else have a trick to bleed the system of air entirely. I think what I found is that I had a air lock in the cool return line of the radiator going over the steering rack and down alongside of the car.

Please let me know what you guys think, I honestly can't imagine another botched dyno run haha.