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JHM Lightweight Flywheel and Clutch Combo with B7-RS4 Pressure Plate for B5-B6 A4 1.8T


Product Description


JHM has been testing and abusing the B7 RS4 pressure plate since early 2009. This started with our B6-B7 S4 and B7 RS4 product development. In mid 2009, we purchased a 2005 B6 S4 to compliment our long time R&D car, our flagship 2001.5 Nogaro Blue B5 S4. To this day we still own, daily drive, and test products on our in house B5 S4. Of course this car has the full JHM treatment which now features a JHM built motor with Record Setting JHM RS6-R turbos. This car has been running our new Lightweight Flywheel and Clutch setup (Stage 4) with the B7-RS4 pressure plate for quite some time. We've seen much better results with this new kit than we had with the older B5 RS4 pressure plate setups we used to sell.

In true JHM style here are some videos of some of the abuse we have put this clutch disc and pressure plate setup through during our R&D process:

NEW VIDEO AS OF December 2012. 10.8 quarter mile pass with our 2001.5 B5 S4, full weight street car with stock hood and full exhaust. This car has the stage 4 clutch which can hold some power.

JHM burnouts and abuse from late 2010 with our B7 RS4 (we have since gone faster in the 1/4 mile in an all motor trim). VIDEO -->HERE>
JHM Record Setting Track Run: 11.96 @ 116mph with our Stage 1 B6 S4 Vortech Supercharger Kit on a stock motor. VIDEO -->HERE>

Yes, some of these are videos of our in house 2001.5 B5 S4 2.7T, 2005 B6 S4, our B7 RS4, not a 1.8T. HOWEVER, these videos better demonstrate the performance of this new clutch kit due to the fact that these cars have way more instant torque than the B6-A4 1.8T because of their increased displacement, all motor horsepower design, and no turbo lag. Pressure plate manufacturers use torque - not horsepower - to measure how much power a clutch kit can hold. Torque - not horsepower - is a measurable value. Horsepower is created through torque and revolutions per minute of the motor using a mathematical calculation, not by measuring the force of the motor directly. Therefore torque - not horsepower - is critical when measuring the performance of a clutch and pressure plate.

We looked at these results from our V8 cars and our B5-S4 and thought that we had to get this setup on some of our employee's and local customers' B6-A4 1.8Ts. We wanted to offer our in-house 1.8Ts (and eventually our customers) the extra durability, street-ability, and lower cost of the B7 RS4 pressure plate. Unfortunately, the B7 RS4 pressure plate IS NOT a bolt on part for the B6-A4 1.8T. With our custom made lightweight flywheel, now it is. This flywheel is not like others out there. It's designed specifically to accept the B7-RS4 pressure plate. With our LWFW design, the B7-RS4 pressure plate offers an increased clamp load over previous setups. (We had it independently tested and we found that it has 18% more clamp load than the B5 RS4 pressure plate, a common upgrade for 1.8T customers). It also gives you a lighter and more precise pedal feel leading to all around better drivability in you B6-A4 1.8T.


- FLYWHEEL - These lightweight flywheels are made out of aluminum and weigh over 60% less than a stock flywheel!!! Our JHM Lightweight Flywheel weighs 9 lbs versus 24 lbs for a stock flywheel on a B6-A4 1.8T!!! Don't be scared away by the thought of unbearable chatter, though!!! Due to the fact that we increase the diameter of the clutch disc and in turn - the entire rotating assembly of the clutch and flywheel - the JHM Lightweight Flywheel and Clutch Combo doesn't chatter like you think an under ten pound lightweight flywheel would. The JHM Lightweight Flywheel and Clutch Combo (Flywheel, Disc, Pressure Plate) weighs 25 lbs versus the Stock Dual Mass Flywheel, Disc, and Pressure Plate which weighs 37 lbs. JHM Combo is STILL 12 lbs lighter overall or 30% lighter than stock!

NOTE: If you have a brand-x lightweight flywheel you can send it to JHM for modification to accept the B7 RS4 pressure plate. Please email us for details. We do not modify OEM flywheels for this pressure plate at this time.

Why a lightweight flywheel? When you reduce the weight of the rotating mass that the motor has to turn, you free up horsepower and make the engine more responsive.

- CLUTCH KIT - These are available in 3 stages. See drop down boxes below for all options and their prices.
-JHM Stage 1 (Full Organic): Good for Stock, Stage 2, Stage 3 1.8T Motors. This is the same clutch material that comes on the B7-RS4 and is capable of holding more power than a stock 1.8T motor can handle.
-Stage 2 (Double Sided Kevlar): We do not have a traditional full Stage 2 double sided Kevlar option due to our experience with them over the past 6+ years.
-JHM Stage 3 (hybrid Ceramic/Metal Backed Organic): Good for all Stage 3, Big Turbo 1.8T stock or built engines.
-Stage 4 (hybrid Ceramic/Kevlar): Good for all Stage 3, Big Turbo 1.8T stock or built engines and above. We also recommend this clutch material for customers looking to drive their cars aggressively and put the clutch through back to back runs of high powered shifting. The Kevlar material is very durable and can withstand nearly any amount of hard driving that you throw at it.
Click to enlarge picture

Click to enlarge picture

Click to enlarge picture

INCLUDES THE FOLLOWING -9 lb Hybrid Lightweight flywheel - Flywheel to crank bolts - OEM B7 RS4 pressure plate - clutch disc (choose stage below before ordering) - Pressure plate to flywheel bolts - Throwout bearing - Pilot Bearing - Clutch alignment tool FITMENT:
- B5-A4 1.8T with 5-Speed Transmission
- B6-A4 1.8T with 5-Speed Transmission
- B6-A4 1.8T with 6-Speed Transmission


NOTE: Clutch break-in is important and must be done properly. You need to do as much city type driving as you can for the first 500 miles the new clutch is in the car. Each time you start from a stop or shift it aids in the break in process. Highway mileage does not count. You also MUST avoid any racing activities, launching, or aggressive driving during the break-in period as this gets the clutch disc too hot. With that being said, you can go full throttle but you just can't speed shift or power shift. For shipping quotes: Please sign in or join then put the items you want in your shopping cart and proceed to checkout.

Note: JHM works hard to make all fitment charts as accurate as possible please read the product description to make sure this is correct for your vehicle.
Make Model Year Range
Audi A4 - B5 1996 - 2001
Audi A4 - B6 2002 - 2005

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