What brand flywheel and weight do you all recommend for everyday driving and occasional racing with some hard driving, not hard track racing. Also, I heard flywheels can be made of different material compared to others. Is aluminum bad or good? Also, is ACT clutch kit good brand? My stock clutch is slipping and I want more power and able to have the clutch setup to handle it.

 

Flywheels are made out of aluminum and steel. I have the comptech steel lightweight flywheel and have no probs with it. Plus the fact that is steel and you can have it resurfaced I like. I cant remember if you can resurface aluminum ones or not.

 

what weight is recommended and how much does our stock flywheel weigh?

 

how about the stock flywheel? I think that one best suits your needs.

 

I don't know the exact weights, but the comtech is only a pound or two lighter (the stock flywheel is already quite light). Aluminum flywheels have their pros/cons like any other one. You can get them a good bit lighter than steel, but their reliability is questionable. Many have detachable surfaces that can be replaced, but if a failure occurs they have on occasion exploded. Having said that I have used aluminum flywheels on a number of cars (usually from fidanza) with no issues. However it depends on how hard you are on it (dump the clutch etc..) For the s2k I will probably go comptech steel flywheel since that seams to be the best choice for forced induction.

Also don't forget that too light of a flywheel will make your rpm's drop too fast between shifts so it will become less driver friendly if it is your daily.

 

Stock is something like 13.6lb.. the comptech is 9.5lb.

I have the comptech with an ACT clutch and OE disc. It doesn't make a huge difference but it is noticable.

 

Going lighter isn't always best. I just got new stock in for the Competition Clutch flywheels. There are now two versions...a 9.25lbs flywheel and an 11lbs flywheel. For turbo applications it's best to have a heavier flywheel since spool up times is greatly affected by the load placed on the engine. For a supercharged car, the amound of parasitic drag created by trying to turn the belt is huge and going with as light as possible is the way to go. For N/A you should go with what suits your driving habits the best. Too light and it makes street driving too difficult...too heavy and it makes the engine sluggish at very low RPMs with the low torque output. There is also a huge difference in weight if you have a AP2 they drastically increased the flywheel weight for the AP2's.

Both the Competition Clutch Flywheels are of steel construction and resurfacable:
http://automotivespeed.com/index.php?cPath=23_28_39

 

A lighter flywheel makes the car harder to drive on the street and makes it more likely to stall. I have a Toda CrMo flywheel. I've heard very bad things about Al flywheels like them coming apart. Having done the change I suggest you stick with stock until you have a good reason to change.

 

can I still use my stock flywheel with an aftermarket ACT clutch setup?

 

Yes