Did some searching and rolled a donut on this.
I'm rebuilding at the end of the season and looking to replace my clutch when the engine and trans come out. I'm after opinions and options on alternatives that won't cost a bomb (like less than $500).
Here are my needs:
- Car is atmo and has 170-190whp (hopefully closer to 190whp post rebuild)
- Using a Fidanza 1.8L flywheel
- Clutch needs to modulate as we do standing starts in my class and it is critical to get off the line well in a sprint race
- I'm running Hoosier R80 rubber and an OS Giken diff which will work it hard on starts
- Needs to be durable and survive repeated and regular trips to 8200rpm in a car with solid engine mounts and shitloads of NVH
With this in mind, I'm thinking of steering clear of a 4 or 6 puck as they aren't easy to get off the line consistently. I'm also concerned about springs in my clutch disk as I know they can fatigue and crack over time, especially in high NVH cars like mine.
I can't really afford a twin plate, and besides, I have driven a Giken and a Tilton twin plate in a Miata and they were both like an on/off switch with zero modulation.
I have been leaning toward a garden variety ACT HD organic, even though it is sprung in the disk. My power levels aren't that high, and I had one in my turbo roadie and it was awesome. Just not sure how it will cop racing conditions over a few seasons of pounding.
Thoughts? Options? What are the autocrossers using? I know you guys beat on your clutches.