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Hi Guys, This may have been coverd already. If it has please excuse me. I've been researching Z31 flywheels and clutch/pressure plate setups. I've got a Shiro I'm restoring and figuring out the flywheel/pressure plate/clutch disc combinations has been interesting. The pressure plates for the 240mm and 250mm flywheels are not interchangable (the pressure plate bolts holes and pins are further out on the 250mm flywheel. The stock 240mm pressure plates/clutch setups are known to generally hold better than the stock 250mm pressure plates/clutch setups. There are new stock-ish 250mm flywheels available (Rhino etc.) as opposed to no new stock-ish 240mm flywheels (they maybe out there I just could not find them). So, here is my solution, I'm going to use a 240mm clutch disc with a 250mm pressure plate on a 250mm flywheel. Using slightly smaller disc clutches on slightly larger pressure plates is an old school perormance trick that was used back in the 60's and 70's on muscle cars. The theory being that applying the same pressure to a smaller area makes for greater presure between the flywheel and clutch surface. Yes I know the lightened flywheels are a lot of fun, I've had them on stroked L6s. Yes I know that Centerforce now has a dual friction clutch/pressure plate setup for the 250mm flywheel (bit pricey though). Yes I've read about using 90-96 300ZX pressure plates and 350ZX pressure plates on the Z31 250mm flywheels. My set up will be a 240mm Centerforce Dual Fricton clutch disc, stock 250mm Exedy pressure plate, new stock-ish Rhino 250mm flywheel. I'm building the engine to 400 hp, and want a clutch set up capable of holding up to occasional burn outs, while keeping the pedal pressure stock as this will be my daily driver and I plan to put a lot of miles on it. Anyway, for you guys with tight budgets and you guys using their Zs as daily drivers this might be a option. I've fitted this combo up and everything matches up. I haven't installed yet, but I'll post results when I do. So wait for me to post the results before doing this setup yourself. If anyone else has done a similar setup, I'd like to hear about your results. I'd also like to hear from folks that are using the 90-96 300zx and 350ZX pressure plates and clutches on stock Z31 250mm flywheels. Sorry for the length of the post, thanks for your interest.