Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
991 : 2011- 15
997 : 2004- 77
996 : 1997-2005 30
993 : 1993-1998 4
964 : 1989-1993 5
Carrera 3.2 : 1983-1989 2
Carrera SC : 1977-1983 1
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 3
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 16
Cayman : 2005- 19
Cayenne : 2003- 5
Macan : 2014- 4
Panamera : 2009- 1
912-914-924-928-944-968 2
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [991] 2011-Current
Porsche 911 [991]
911 [997] 2004-Current
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
Jackzi
Trainee


Joined: 30 Aug 2015
Posts: 73
Location: Sussex


PostPosted: Mon Apr 15, 2019 9:02 am    Post subject: Lightweight flywheel (RPM Technik - CSR) Reply with quote

Hi everyone,

I'm looking at a car that has a lightweight flywheel fitted. It's from RPM Technik and the one they use in their CSR builds.

I've done some basic research about the mechanical side of things and have read that it can cause increased stress on the crankcase. So I'm not sure if it's a good idea if you're not doing a comprehensive engine/gearbox lightening programme.

But here's my question to those who have one/have driven one: does it feel any different?

Is the clutch more sensitive? Is it 'daily driveable' (city traffic, etc.)?

The owner says it makes more noise, but that's all he had to say about it really.

The car is a far way's away from me. So I was hoping to get an impression from the good people on here before I drive it myself.
_________________
E39 530i
996 targa
 
  
View user's profile Send private message
   
MisterCorn
Long Beach


Joined: 08 Jan 2011
Posts: 6838
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Mon Apr 15, 2019 9:19 am    Post subject: Reply with quote

Yes it will feel different. Immediately noticeable. The engine revs will rise and fall much more quickly and you will have up to 20% more power at the wheels in first gear.

MC
 
  
View user's profile Send private message Visit poster's website
   
Jackzi
Trainee


Joined: 30 Aug 2015
Posts: 73
Location: Sussex


PostPosted: Mon Apr 15, 2019 9:23 am    Post subject: Reply with quote

That in itself doesn't sound too bad at all.

But I would imagine some driveability will be sacrificed as a result, right?

If the revs fall quickly that would theoretically mean you'd have to give it more revs when driving in first in stop start traffic.
_________________
E39 530i
996 targa
 
  
View user's profile Send private message
   
MisterCorn
Long Beach


Joined: 08 Jan 2011
Posts: 6838
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Mon Apr 15, 2019 9:37 am    Post subject: Reply with quote

I run one on my turbo with an upgraded clutch. It takes a bit of getting used to at first but not really a big deal. There is more of a chance of stalling the engine if you are a bit ham-fisted with the clutch. But no downsides as far as I'm concerned. I will be fitting one to the engine for my C4 project.

MC
 
  
View user's profile Send private message Visit poster's website
   
FRP
Albert Park


Joined: 30 Apr 2014
Posts: 1566
Location: Middlesex


PostPosted: Mon Apr 15, 2019 12:53 pm    Post subject: Reply with quote

I have a 996 turbo and have fitted along with a custom clutch,,,,,all good !
_________________
2002 996tt x50 manual in bassat black - 9eXX
 
  
View user's profile Send private message
   
Jackzi
Trainee


Joined: 30 Aug 2015
Posts: 73
Location: Sussex


PostPosted: Mon Apr 15, 2019 2:18 pm    Post subject: Reply with quote

Doesn't sound that bad then.

There are a bunch of naff videos on youtube where people try to show the difference, but they're not very helpful.

The clutch is standard in the car I'm looking at.

I'm not a 'driving God' who heels and toes everywhere and the standard cars I've driven up until now were just fine for driveability.

So I'm only worried it might be a pain.
_________________
E39 530i
996 targa
 
  
View user's profile Send private message
   
MisterCorn
Long Beach


Joined: 08 Jan 2011
Posts: 6838
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Mon Apr 15, 2019 2:23 pm    Post subject: Reply with quote

You don't need to be a driving God. In fact it is even easier with a lightweight flywheel as there is less requirement to heel and toe since the engine spins up so much more easily when changing gear.

MC
 
  
View user's profile Send private message Visit poster's website
   
FRP
Albert Park


Joined: 30 Apr 2014
Posts: 1566
Location: Middlesex


PostPosted: Mon Apr 15, 2019 2:25 pm    Post subject: Reply with quote

I cannot or dont need to heel and toe, just keep the boost on bar and hold on LOL

I really dont think you need to worry about anything
_________________
2002 996tt x50 manual in bassat black - 9eXX
 
  
View user's profile Send private message
   
Paz
Trainee


Joined: 06 Jul 2014
Posts: 91
Location: Leicester

1998 Porsche 996 Carrera 2

PostPosted: Mon Apr 15, 2019 5:09 pm    Post subject: Reply with quote

I've got a lightweight flywheel in my early 996, yes it's a bit noisier but it's not hugely intrusive.
The more immediate throttle response more than compensates for it and I find it easier to modulate the clutch too.

Go for it thumbsup
 
  
View user's profile Send private message
   
PGN
Trainee


Joined: 07 Feb 2010
Posts: 61



PostPosted: Wed Apr 17, 2019 9:52 pm    Post subject: Reply with quote

Best mod for driving sensation imho.

First thing I get done on my 911’s
_________________
Current:
996 CSR Retro
986 Boxster S

ex Porsche 997 C4S '06
ex Porsche 996 C2 '00
ex Porsche 996 C4 '03
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum