1995 lwfw ?
Thread Starter
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From: Montreal, Quebec
1995 lwfw ?
Adding a lightweight flywheel on a 1995? Is it doable?
If adding steve wong chip at the same time, will it fix the stalling issue?
Thinking already about winter projects here in mtl as the snow will arrive early december.
Lwfw and clutch
Steve wong chip
Regearing transmission
Thx for help
photo327.jpg
If adding steve wong chip at the same time, will it fix the stalling issue?
Thinking already about winter projects here in mtl as the snow will arrive early december.
Lwfw and clutch
Steve wong chip
Regearing transmission
Thx for help
photo327.jpg
Seared
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From: Ellicott City, MD
Have you driven a 993 with a LWFW? While the ability to rev the engine faster is certainly appealing, the bucket-of-bolts sound is not. At least to me. 
I think Steve has a chip that addresses the stalling issue.
Andreas
I think Steve has a chip that addresses the stalling issue.
Andreas
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From: MD
I had a 95 993 and a 964 with LFW. Both had Wong chip. Lucky me no “bucket o bolts” at idle nor stalling.
Steve has different chipset for your particular needs ie Stall Fix only, Stall Fix and 93 octane, cat delete, etc
Steve has different chipset for your particular needs ie Stall Fix only, Stall Fix and 93 octane, cat delete, etc
Thread Starter
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From: Montreal, Quebec
Originally Posted by AOW162435
Have you driven a 993 with a LWFW? While the ability to rev the engine faster is certainly appealing, the bucket-of-bolts sound is not. At least to me.
I think Steve has a chip that addresses the stalling issue.
Andreas
I think Steve has a chip that addresses the stalling issue.
Andreas
There ls not much 993 in montreal
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From: MD
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I saw a significant improvement - the car feels more aggressive and responsive. Heel toe is super easy - rev matching is a breeze. For me this was an all win, no downside modification.
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Strange - I have a LWFW. No bucket of bolts sounds. A slight rattle at low RPMs if I’m unintentionally lugging it, but otherwise there’s nothing really objectionable.
I saw a significant improvement - the car feels more aggressive and responsive. Heel toe is super easy - rev matching is a breeze. For me this was an all win, no downside modification.
I saw a significant improvement - the car feels more aggressive and responsive. Heel toe is super easy - rev matching is a breeze. For me this was an all win, no downside modification.
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From: Dallas, TX
I wouldn't do it.
At one time I looked into the non-dual mass lightweight flywheel option and found that if you replace the flywheel with a lightweight single-mass flywheel be aware that you should expect a good bit of additional noise, per Luk testing data and Rennlist postings. Some who have done this like the concept and throttle feel of the simpler flywheel and feel it is a good tradeoff for a perception of improved performance. Others have found the noise bothersome. Luk testing has shown installing a single mass flywheel can accelerate wear on engine/driveline components due to increased torsional impact loads to the engine and transmission. Some have experienced idle problems with the lightweight flywheel requiring DME software changes to fully address.
Andy
At one time I looked into the non-dual mass lightweight flywheel option and found that if you replace the flywheel with a lightweight single-mass flywheel be aware that you should expect a good bit of additional noise, per Luk testing data and Rennlist postings. Some who have done this like the concept and throttle feel of the simpler flywheel and feel it is a good tradeoff for a perception of improved performance. Others have found the noise bothersome. Luk testing has shown installing a single mass flywheel can accelerate wear on engine/driveline components due to increased torsional impact loads to the engine and transmission. Some have experienced idle problems with the lightweight flywheel requiring DME software changes to fully address.
Andy
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^^^To be fair, driving the car will cause accelerated wear. 
I'm not aware of any reported failures linked to using a LWFW, but I suppose anything is possible. Ironically, I drive much smoother with the LWFW because rev matching is much easier, so there is some theoretical benefit there.
I doubt the LWFW has any quantifiable performance advantages. It's all feel. But that's enough for me. I'm not worried about numbers with this car.
That said - I would keep the eyes wide open about using this in a '95. I've read posts where people were not able to shake the stall issue even with a chip. I'd see what the chip guys have to say about it. I have a '98 and zero stall issues.
And if the trivial amount of noise bothers you, I'd suggest getting a Fister III and that will cover it up nicely.
I'm not aware of any reported failures linked to using a LWFW, but I suppose anything is possible. Ironically, I drive much smoother with the LWFW because rev matching is much easier, so there is some theoretical benefit there.I doubt the LWFW has any quantifiable performance advantages. It's all feel. But that's enough for me. I'm not worried about numbers with this car.
That said - I would keep the eyes wide open about using this in a '95. I've read posts where people were not able to shake the stall issue even with a chip. I'd see what the chip guys have to say about it. I have a '98 and zero stall issues.
And if the trivial amount of noise bothers you, I'd suggest getting a Fister III and that will cover it up nicely.
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From: Baltimore, MD
My now-sold, 1995 race car had a PMNA lightweight flywheel and there was no bucket of bolts sound with solid motor mounts. However, when I installed the solid trans mount, that's when the bucket of bolts sound started; it was definitely noisy but not an issue for a track car where you're wearing a helmet and ear plugs and looking to shave tenths of seconds. For a street car, there is no way I'd put up with that annoying cacophony. Shifting was, of course, incredibly crisper.
I had some stalling issues on the street, but cleaning the ISV valve cured the problem for about 6,000 miles.
Tons and tons of threads on this topic. Keep in mind that people use LWFW, LWF, lightweight flywheel and light weight fly wheel and other variations when they start a thread or post, so knowing how to search is critical for this topic:
-Poll on '95 owners' experiences with the LWFW: https://rennlist.com/forums/993-foru...995-993-a.html
-New ISV valve cured stalling issues (great read with many other links in here): https://rennlist.com/forums/993-foru...m-new-isv.html
-Solid motor mount and noise thread: https://rennlist.com/forums/993-foru...on-mounts.html
I had some stalling issues on the street, but cleaning the ISV valve cured the problem for about 6,000 miles.
Tons and tons of threads on this topic. Keep in mind that people use LWFW, LWF, lightweight flywheel and light weight fly wheel and other variations when they start a thread or post, so knowing how to search is critical for this topic:
-Poll on '95 owners' experiences with the LWFW: https://rennlist.com/forums/993-foru...995-993-a.html
-New ISV valve cured stalling issues (great read with many other links in here): https://rennlist.com/forums/993-foru...m-new-isv.html
-Solid motor mount and noise thread: https://rennlist.com/forums/993-foru...on-mounts.html
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From: Norcal
If anyone is interested I have a new lwfw, ring gear, and guide tube for sale as leftovers. Will post details on the FS thread.
Price: $630 shipped
Price: $630 shipped
Last edited by Mark in Baltimore; Sep 17, 2019 at 12:54 PM. Reason: Added price