LWF in stock SC

[Blk95993]

A friend of mine had recently installed a LWF in his 993 coupe. Loved the quick spool up and response. Car actually felt like it accelerated much quicker than stock. Seemed that there would be some benefits, especially in AutoX? I searched the forum and it seems that it is more of a popular upgrade for higher HP cars and 993's?

I am about to start my tranny rebuild soon and wondered if a LWF would have the same effect in a SC, or is the money better spent somewhere else? I have the basic upgrades-nothing really special. My thoughts is it may be an inexpensive "while I am at it" upgrade. Feedback and opinions appreciated.

[ischmitz]

Assuming LWF stands for "light flywheel" or something similar I think by itself it probably isn't the most effective upgrade for the money and it makes the car a little less driveable (engine stalling). I would only do that if I had to replace the flywheel anyway.

IHMO money is better spend elsewhere. Things that come to mind are suspension upgrades (shocks, swaybars, bushings). If you are simply hunting engine power (which isn't the biggest contributor to being fast on the track) a chip could be a nice addition.

Brakes always could use some upgrades if you intent to do a lot of track time.

You would be amazed how much sportier a car gets just by doing a descent suspension setup including alignment and corner balancing.

If you are going into the transmission the first thing I would put in is a solid bearing retainer and a the stronger diff cover with the additional webbing if its not already installed.

Cheers,
Ingo

[Blk95993]

Ingo-

Thanks for the post and feedback. After I posted the tread last night, I continued to search the forum and in Wayne's book for additional info on light weight fly wheels. It does not seem to be a popular upgrade for the SC. I will do some research on the solid bearing retainer.

I completely new to taking on these types of projects and just want to make sure I don't make the typlical newbie mistake by missing out on an easy upgrade opportunity "while I am there". If I hadn't have posted this thread, I would never have know about added a solid bearing retainer. Thanks for the input!

[Bill Verburg]

The lwf is an appropriate mod for 964 and 993 models that came w/ dual mass fly wheel/clutch assemblies. All US 964 and 993 came so equipped.

The Row 964RS setup that replaces the dual mass setup is ~40# lighter and makes a big difference in the cars so equipped, it has been subsequently used on sport models through the 997GT3/RS. The RS setup is also roughly the same weight as what your SC came w/(it is somewhat bigger and heavier but not much).

There are some nice lighter setups available for your car such as the Sachs Power clutch, but they are only a few lbs lighter than stock SC and don't make that big a difference. They are desirable because they are a little lighter and eliminate the rubber ctr. clutch disk that most SCs came w/. You only need to replace the SC flywheel if it is damaged. On the 964 and 993 the clutch and flywheel are all replaced at the same time as the RS and normal components do not work well w/ each other