So I feel I've read every post here related to the f430 flywheel, and i don't see any consensus. Many say that ferrari did away with the tapered flywheel, and now they are all flat. Quite a few people just left the original untouched. Several claimed to just have it resurfaced, but did not mention if they just went flat, or were able to find someone to grind the taper. And of course, you can just replace the flywheel wheel with a new flat or tapered OEM one. What do you, or your shop do? TBO, I don't understand the point of the taper. Sure the theory is when brand new, it will engage progressively, but that will only be true for a few 1000 miles until it the disk slightly wears into the shape of the taper, then it will act like a flat disc.
You can find info and pictures of mine. My understanding was that the slight taper on 360s was for the F1 system to gradually “bite”.
Most OE flywheels are tapered to provide smoother clutch engagement. It is not the end of the world if you don't have it - its the first part of the flywheel to wear flat anyway.
My F355 flywheel and pressure plate had a lot of taper. Clutch disc was worn unevenly as well. New lightweight flywheel is flat and I had the pressure plate machined flat. Works great, very smooth.
Flywheel grinding machines grind at a slight taper as a function of how they work. It is not for the benefit of clutch function. The Ferrari specification is about being the maximum allowable, not a desired amount for some magical need of the clutch. In fact, as far as clutch function goes, the flatter the better but true flat is not possible with most machines.
Not true. Here from the horses mouth: https://press.zf.com/press/en/releases/release_28224.html#:~:text=In%20most%20commercial%20vehicle%20(CV,to%20ensure%20smooth%20clutch%20engagement. If a precision milling or surfacing machine is creating a taper on the workpiece then it is broken. Grinding machines may have done so but I think they went out with the ark
