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JHM Lightweight Flywheel (Chrome-Moly Forged or Aluminum) and Clutch Combo for 04 and up B6-B7 S4

SKU: JHM-V8S4LWFWCC

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Details
Details

JHM B6-B7 S4 CHROME-MOLY FORGED SINGLE-MASS LIGHTWEIGHT FLYWHEELS AVAILABLE NOW!! 

NOTE: This is now an option you can choose instead of our traditional Alumimum Flywheels. Use dropdowns above to choose.



The Chrome-Molly Forging allows fewer opportunities for failure and promotes uniform, efficient heat transfer from the clutch disc. This is to prevent warped friction inserts or loose ring gears. It is strategically lightened, stronger, safer and has better thermal capacity than OE cast flywheels. With smooth operation at all RPMs, these flywheels meet the needs of both the enthusiast and the hardcore racer. 


Features:

• Chatter Free
• Easier engagement from a stop compared to aluminum
• Improved Engagement and momentum when Launching
• One-piece Chromium Molybdenum forging is stronger and more durable than billet steel, aluminum or cast iron.
• Tough, precision-made and dynamically balance
• Lighter and stronger than stock flywheels
• Integral ring gear is induction-hardened for maximum gear life
• Material is properly distributed for strength, greatest heat dissipation and reduced inertia
• CAD-designed, CNC-machined and computer balanced for quality and precision
• Improved throttle response and acceleration
• Smooth operation at all RPM’s
• Optimal mass distribution
• Lead-in chamfers
• Heat treated and tempered
• SFI Spec. 1.1 Certified Design

Flywheel Weight:

OEM: 26lbs
JHM:  15lbs

JHM Flywheel is 11lbs Lighter!

 

Included:

1x JHM Chrome-Moly Forged Lightweight Flywheel 
1x OEM Pilot Bearing (Pressed Into Flywheel)
8x OEM Flywheel Bolts

 

NOTE: This flywheel will not work properly on a B6 S4 without the appropriate pressure plate like in the JHM B6/B7 S4 Clutch/Lightweight Flywheel Combo 

NOTE: Flywheel to Crankshaft bolts must be torqued to 65 ft lbs with the use of loctite on the threads

NOTE: JH Motorsports has seen many B6 S4 flywheels fall apart in some cases causing major damage to the transmission. This is why JHM built all its clutch and flywheel products around the new and updated B7 style flywheel and pressure plate. This way we can update all B6 owners to B7 spec components. Our complete kits fit ALL B6/B7 S4 4.2l V8s, we basically take the guesswork out of updating your B6 to B7 specs.

In typical JHM style here are 2 videos of some of the abuse we have put this clutch and flywheel combo through during our R&D process with our in house 2005 B6 S4.

JHM burnouts and abuse with our B6 S4 VIDEO -->HERE>
JHM 12.97 @ 109.1 all motor and Bolt-on parts quarter mile pass VIDEO -->HERE>

SPECS
- ALUMINUM FLYWHEEL USA MADE - These JHM aluminum lightweight flywheels weigh less than 1/2 the weight of stock! 13lbs versus 26.5lbs for B7 S4 (B6 S4 weighs 26lbs). These are a direct replacement for 05.5 and up B7 S4s and an upgrade for 04-05 B6 S4s. The iron friction liner is replaceable, so, you will never have to buy a new flywheel again, you can just swap the liner if you ever replace your clutch. The crank position ring is welded to the ring gear while being retained and fastened with countersunk screws (not cheap pins prone to shearing like some other brands). For those concerned about the driveability and the infamous "chatter" of a lightweight flywheel that Audi enthusiasts have experienced with smaller 4 cylinder and 6 cylinder turbo engines here is the truth. With the B6/B7 S4s 4.2L V8s torquey nature the driveability is very close to stock and the noise is minimal when it is bogged under 1500 rpm. Some of JHMs customers have reported that they did not notice it at all. An added bonus to this upgrade for the B6 S4 owners is that with this flywheel you can now run a B7 RS4 pressure plate that is in our JHM clutch kit. The higher clamp load pressure plate is not compatible with the OEM B6 flywheel, so you must run a JHM lightweight flywheel or a B7 S4 OEM flywheel.
- CLUTCH - These JHM Stage 3 (hybrid Ceramic/Metal Backed Organic) street performance clutches (choose stage below before ordering) are from a result of actual on car testing (video proof above) and from pressure plate clamp load testing that JHM had performed on all the available pressure plates for the B6/B7 S4 and RS4. Most of the on car testing was to find the optimal materials for the most streetability while delivering the performance any Naturally Aspirated B6/B7 S4 could dish out. The pressure plate testing allowed us to find that the B7 RS4 pressure plate was the same as the B7 S4 and had 400 more pounds of clamp load vs. the B6 S4 pressure plate. So this is another reason why we highly recommend our full combo if you have a B6 S4. As for driveability the hybrid combination of materials has made the clutch hold better and handle higher heat as well while still being smooth enough for every day driving with a stock like pedal feel.

NOTE: Stage 4 (hybrid Ceramic/Kevlar) Clutch Discs have been DISCONTINUED. If you are looking for a higher performance clutch setup than our Stage 3, we recommend our JHM R-Series Clutches that are more performance oriented and still retain street-ability.

Why a lightweight flywheel? Well when you reduce the weight of the rotating mass on the engine you free up horsepower. So that is the great benefit of a lightweight flywheel, plus the JHM unit is less expensive than a brand new OEM flywheel and it doesn't have a dual mass setup that can wear out or fail.


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Audi B7 RS4 Performance Clutch

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Audi B7 RS4 Performance Clutch

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Audi S4 B6-B7 Lightweight Flywheel & Performance Clutch

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Audi S4 B6-B7 Lightweight Flywheel & Performance Clutch

INCLUDES THE FOLLOWING -JHM Aluminum Lightweight flywheel or JHM Forged Chrome-Moly Lightweight Flywheel built to 05.5 and up B7 S4 specs - New pilot bearing (already pressed in) - Flywheel to crank bolts - Washers - B7 RS4 pressure plate - JHM Stage 3 (hybrid Ceramic/Metal Backed Organic) or Stage 4 (hybrid Ceramic/Kevlar) disc (choose stage below before ordering) - Pressure plate to flywheel bolts - Throwout bearing - Clutch alignment tool.

INSTALLATION AND TORQUE NOTES HERE

NOTE: Clutch break in is important and must be done properly. For the Stage 3 clutches you need to drive as much city type driving as you can for the first 500 miles (each time you start from a stop or shift it aids in break in, Highway mileage does not count). For Stage 4 clutches the procedure is the same but you must do this break in procedure for 750 miles. Due to Kevlar's resistance to wear it takes longer to break in. You also MUST avoid any racing activities, launching or aggressive driving that gets the clutch hot during this period.

NOTE: For those that are looking for a more robust, race oriented clutch setup we highly recommend looking into our R-Series line-up that does not have an SAC. The SAC in OEM and other aftermarket pressure plates work great for comfort and OEM-like drive-ability, however it is not designed to take excessive abuse of track days or aggressive street driving. We have done rigorous testing since 2012 to develop the ultimate clutch solution for both street and track and the R-Series is what is needed to take these cars to the next level.

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This product fits the following vehicles:
Make Model Chassis Engine
Audi S4 B7 (2005.5-2009) 4.2l V8 40v
Audi S4 B6 (2003-2005) 4.2l V8 40v
Reviews
Customer Reviews (3)
Still breaking this clutch LWFW in at ~350miles on it. First impression is WOW. The pedal feel is very similar to stock but it engages much much better. Its really hard to describe the difference in words but I would Have to say "crisp" to describe it. There is no more riding feel even under stop and go driving.
Great Job JHmotorsports.
I can't wait for full break in and launch this car the way it was ment to be driven.
Review by Wayne (Posted on 4/26/2012)
WOW!!

I did the light weight flywheel and stage III clutch kit on my 2004 Audi S4 (B6) and all I can say is WOW!! What a difference this kit made. The shifts are crisp and the revs are smooth as can be. All this with a "feel" that's so much better than the stock setup it just makes you grin!

A big thumbs up to the folks at JHM for offering such a significant upgrade to an already great automobile! Way to go fellas, with products like this you have earned my loyalty and respect. All of my performance Audi needs have finally found a vendor that gives me what I want. Great products and great service at a fair price...

Kudos and keep em coming!
Dante
Review by Dante (Posted on 2/18/2012)
The stage 3/4 clutch and LWFW package is a no brainer if you need a new one. I went for the stage 4 and it's very easy to drive like stock (I am no driving god). The LWFW makes a big difference as to how the car revs - much sportier and more important much more fun. I have a B6 and there is a small amount of chatter between 1000 and 1500 rpm under load. Solution? I learnt to shift more appropriately. DO NOT let chatter be a reason not to get this kit, learn to shift instead! Review by Adrian (Posted on 1/1/2012)
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