Help me pick a clutch?
Not trying to hijack this thread but..... My car makes 215 wheel torque. Bought car recently and believe it has FM Stage 1. Throw out bearing squeals a lot but clutch doesn't slip. About to replace whole assembly with either FM Stage 1 or 949 racing clutch kit. Afraid the 949 might be too weak for my power.
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Newb
Joined: Oct 2014
Posts: 36
Total Cats: -2
From: Vancouver, Canada
My FM2 clutch also squeaked until I added some grease on to the slave cylinder rod. Otherwise, I have the FM2 clutch in my daily and my only complaint is that its a little hard to slip at lower rpm without some chatter.
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Junior Member
Joined: Oct 2011
Posts: 53
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Thanks for the input. I'll check it out. It would be great if that is the problem. However, the sound I hear is the high frequency whirring and squeaking sound as I rest my foot on the pedal and just begin to push the pedal in. It sounds and feels like the throw out bearing making contact with metal. The previous owner tracked the car and I believe the bearing had a lot of work to do.
Thanks, Dan
Thanks, Dan
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Junior Member
Joined: Jan 2017
Posts: 149
Total Cats: 3
From: Victoria BC
Just throwing it out there that the mean torque of a 300wtq engine is a long way from the momentary torque of the same engine. It appears to easily be twice as much. A larger flywheel lowers the peak and raises the valley, evening the energy out. A flywheel is an energy capturing and releasing device, an energy storage device. Would you want over 600ft lbs of force on a couple of gears in the transmission at one instantaneous moment if you were trying to protect it, or perhaps instead smoothing it a bit? It depends on how much you enjoy the lightweight flywheel's responsiveness versus exchanging transmissions, I guess.
Literally just washed the grease off my hands from installing a FM clutch/flywheel on my son's car.....
The stock engine rotating mass plus the clutch/flywheel is what...nearing 80ish pounds?
So you are saying the by installing the 8.7 pound lighter flywheel I have increases peak torque (spike) to the transmission by 50 foot pounds on a 300hp engine?
Feeling like a dumbass after reading this....
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Junior Member
Joined: Aug 2016
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Great read, and very timely for me.
Though sadly it seems there's no good ( oem feel / streetable & available for current purchase ) clutch option to run a moderately boosted 1.8 with a 1.6 clutch setup.
Though sadly it seems there's no good ( oem feel / streetable & available for current purchase ) clutch option to run a moderately boosted 1.8 with a 1.6 clutch setup.
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Junior Member
Joined: Jan 2017
Posts: 149
Total Cats: 3
From: Victoria BC
To me it feels better than stock with a firm pedal and a shorter, faster, engagement. It rev matches 10X better, and upshifts are much faster and are way less effort for the syncros. Took me about 5 minues to get used to.
Zero chatter.
Not bad for a clutch that can and does live behind a 450hp car!
They also make a level one clutch that is fine for most sub 325-350hp goals.
I am sure that clutch would make anybody happy.
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Junior Member
Joined: Aug 2016
Posts: 343
Total Cats: 2
That's a 1.8 clutch. I'm hoping to keep the smaller 1.6 size because (a) I just got a shiny new Fidanza in not more than 100 miles ago and (b) lower MOI for autox.
949 just got back to me actually. They have a new shipment of clutches coming .. no idea when though. LOL.
949 just got back to me actually. They have a new shipment of clutches coming .. no idea when though. LOL.
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