[weederr33]

Originally Posted by sly

Just picked up a set of Michelin Pilot Sport 4S tires. Noticed right away that the ride was much smoother and quieter than the OEM Prius tires it came with. All the very slight vibrations in the steering wheel are gone but I can still get feedback from the road. The grip is much better and feels more predictable. These had good reviews on wet roads which I why I got them. So far they feel almost as grippy on a wet road as the old Prius tires felt on dry roads. A much needed upgrade if you are going to run a supercharger. I noticed that with these new tires, the car is much more nimble. It has a quicker turn in when hitting a curve. At first I had a tendency to over steer. But after getting used to it, it makes the car feel even lighter.


I also fixed a small fuel leak that I just discovered. Back when I upgraded the fuel pump, the sleeve gasket that wraps around the fuel basket must have gotten folded and I didn't realize it. When I tightened the fuel pump ring, it pinched the gasket and eventually put a small tear in it. I smelled gas one day after filling up the tank and noticed a few drops on the ground. Ordered a new gasket and a fuel tank spanner wrench to make the job easier. They recommend about 62 ft/lb of torque on the fuel pump ring and it's impossible to get it right by using a hammer and chisel like most people recommend. Found an adjustable spanner wrench for $20 and it worked and allowed me to get the torque right.

So with the ever so slight tear in my fuel pump gasket and the previous problem I had with my brake hose slipping off, I think I have fixed the EVAP leaks on this car. I don't smell gas in the slightest now and I filled up yesterday to be sure I still wasn't leaking.

Still no problems out of the supercharger. Feels better than OEM. No rev hang when shifting, idles completely smooth when the A/C is off. The idle still surges a little when the A/C cycles but that's probably to be expected with a 2.0L engine. Thanks @Matt@Cosworth for helping me sort through the EVAP problems. You put together an amazing kit. Now I find myself in a conundrum. Do I drive it and enjoy it or do I put it up in a garage, knowing how rare a Cosworth BRZ is going to be?

Good up date!
I was planning on getting the PS4S next year some time as well! I hope they are worth the insane price