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Message: <blockquote data-quote="ReplicaR" data-source="post: 1442636" data-attributes="member: 9209">So, here is a bit of a write up of what's happening currently. My second kid is due any moment now, and I've decided to dust the mustang off and take it to an event one last time before it sits for some time again. I've contacted a shop to have the tune fixed, since the driveability became awful, and the car was very difficult to drive at low speeds. They've fixed the tune and made it much more stable, however that didn't come without issues:1. The car kept frying alternators, I was literally getting maybe 200-300 miles on an alternator, before it would stop charging. The shop that was doing the tune narrowed it down to my tiny battery, so we pulled that out and replaced it with OEM sized Optima Red Top, along with a new alternator to replace the one that stopped charging again. This made sense to me, because after I switched to the small battery, I've fried 4 alternators (3 autozone, 1 OEM).2. The intake manifold has a crack in it, causing the car to stall frequently. I'm not entirely sure why, but TrickFlow R Series intake manifold has a crack in one of the bolt holes, which leaks vacuum into the intake manifold and into combustion chambers. I've called TrickFlow and they offered to send me a replacement upper manifold for free after looking at some picture, however the silver color is not in stock, so I have to wait until they get more supplies. Nice of them at least to offer a replacement free.3. More hydroboost issues, as I broke yet another power steering pump on the warm-up lap. I'm not 100% why the pumps fail so quickly. I've measured everything including the diameter of the pulleys, rotation of the pump and motor, etc, everything looks within factory specification. The only thing that's left to check is if there is something wrong with pressure side hose that's causing the pressure to build up and cause the pump to fail. I am giving hydroboost conversion one last chance, before I have to evaluate my options again. I have at least devised a good test for durability, which consists of holding the motor at 5000 rpm, turning the steering wheel side to side and applying the brakes sporadically. If it can survive that, it should be able to survive a track day. It's just kinda unnerving when you lose both steering assist and brake assist right when you need them both, takes away all confidence.More changes to come eventually, stay tuned.</blockquote>