E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
E9X M3 Lightweight Flywheel
TTV Industrial Ltd

TTV-E9XM3-MT

E9X M3 Lightweight Flywheel

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Background Research
I have been looking at drivetrain modifications for winter upgrade projects and I've been interested in freeing up power from the S65. 

The Lightweight Flywheel fits within that concept by freeing up horsepower, allowing much easier throttle blips for manual guys, and allowing faster pick up in gear. Lightweight Flywheels will also induce slight noise and chatter at idle, something to keep in mind for mostly daily driven vehicles.

I have been hunting the European market for a lightweight flywheel and found many Nurb track tools sporting the TTV Industrial flywheel setups.  These flywheels are commonly used in S65 Motorsport applications with drastically increased power.

About TTV Industrial Ltd
TTV Industrial ltd is a family run business located in the East of England. TTV has been precision engineering for over 25 years, designing and manufacturing automotive parts for original equipment & motorsport, club racer to world championship.

The flywheels offered for BMW M cars use   the same material, the same machines and same tooling TTV uses to manufacture products for Motorsport teams worldwide. 

Why TTV uses Carbon Steel over Aluminum 

Let's get the obvious of the way: aluminium flywheels are cheap to make.

There are no other technical and engineering benefits.

Aluminium is 1/3rd the weight of steel but its also 1/3rd the strength, as such, you need 3 times as much of it.

Having 2 different materials bolted together is not ideal when the parts warm up and start to expand as the expansion rates are different putting components under stress.

Motorsport teams do not use aluminium flywheels are they are not reliable, the steel used for the friction faces tend to be low quality and wear out quickly when used with modern drivetrain friction materials.

2021 Product Update: New Nitride Heat Treatment
Ben @ TTV has continued R&D on the MDCT variant and added a no cost nitride heat treatment to improve heat and torque tolerances. Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface.

Product Features
- Made in England
- CNC machined from a forged high carbon steel billet
- Balanced by TTV from the factory
- Available for MT and DCT transmission
- DCT Weight 5.6kg
- MT Weight 6.0 kg
- OEM 12.5 kg / 27.5 lbs
- The Manual flywheel suits the updated BMW Part Number 21 21 2283 820 / Clutch Part 21 21 2 284 034
- You will need new BMW OEM flywheel bolts SKU: 11227520706
Factory Direct

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