Svängningsdämpare

Byt alltid din svängningsdämpare vid ett balanseringsarbete!
- Detta är en säkerhetsrisk för er och andra!
För ersättningsdämpare till standardmotorer säljer vi Professional Products som har bra produkter till rimliga priser. Vi säljer även svängningsdämpare från ATI som troligtvis har de bästa produkterna på marknaden både för racing och standardmotorer.

ATI Super Dampers
The preferred damper of quality drag race and endurance engine builders!

Why the Super Damper?

• It's the ONLY damper to provide engine protection and performance
• Designed specifically for high RPM engines
• All but eliminates worn parts and timing problems
• The "2 dampers in 1 diameter" design is fail-safe
• Tunable in the field, rebuildable and extremely efficient at all RPM's
• Available for virtually any engine application

Extensive dyno and on-track testing has proven the Super Damper™ far superior to all other designs, especially on engines that turn over 5000 rpm, and is used by every Winston Cup engines builder. Shells are black zinc chromate finished and come with laser engraved 360-degree timing marks. Exceeds SFI 18.1 specs.

When a crank fails, "The two most common sources of breakage are inappropriate application and a defective damper."

A word about vibration dampers ;
This subject is directly related to the crankshaft and its survival in a race engine: vibration dampers. A very common cause of crankshaft failure is using the wrong damper, and is especially leery of any damper that has moving parts. "A damper is supposed to balance an engine. How can you do that when you have something moving on the damper?
"Any damper with moving parts, whether it is fluid or mechanical, is not recommended in a drag race engine. Anything that moves in the damper has inertia. When you quickly accelerate or decelerate the engine, that moving part of the damper slams one way or another and puts a lot of stress on the crankshaft”.
For an engine that runs in a very narrow rpm band and with very little change in engine speed, like an 18-wheeler or a car that drives on the highway at a constant speed, a damper with moving parts is fine, because it will find the frequency at a constant rpm and dampen the vibrations. But with a drag race engine that accelerates and decelerates fiercely, the engine will only have certain vibrations for a millisecond." For a drag racing engine, we recommends the lightest, smallest damper possible, with an elastomer-type construction. "The rubber will sit there and hum, but it won't change location."

Always check that the hub has 0.001” pressfit on the crank !

Download the Harmonic Damper Instruction booklet that applies to all 80000 and 90000 Series dampers. This PDF can be opened with Acrobat Reader and also printed out. These instructions contain valuable technical information not found in the catalog. If you do not have Acrobat Reader, you can download it here from the Adobe website.

Price - Yes, there are less expensive street and SFI specification dampers, but not at this quality level, nor can they match the other features that the Professional Products line of premium dampers offers.

Applications - The SFI-Spec Powerforce+Plus as well as the Powerforce lines of dampers provide more applications for a wider range of engines than any other harmonic damper manufacturer in our price range.

Universality - We are able to fit more applications with fewer part numbers than any other damper line. That's because we have engineered our dampers to be more universal allowing one damper to fit a wide range of engines where other companies either have more part numbers or don't even address the additional applications. We fit engines that no one else does.

Quality - Despite our extremely attractive prices, the quality of our dampers is equal to, or, in most cases exceeds that of, any other harmonic damper. You won't find any damper that is more accurately balanced or more closely machined for the correct fit than the Powerforce or Powerforce+Plus line of high performance street or SFI-spec racing harmonic dampers.

Features - Our line of dampers offer features not found with any other damper. For example, our small block Ford dampers are made to the early short length so that '87 and later engines (with the 50 in. oz. damper) can be used in early chassis or street rods. We offer a line of very inexpensive spacers to adapt the short damper to later vehicles and provide the correct accessory belt alignment. Additionally our small block Ford dampers have both the three and four bolt pulley patterns on them as well as three sets of clear, easy to read white timing marks. Our small block and big block Chrysler dampers both come with extra bolt-in counterweights that provide fitment to limited production vehicles that other damper manufacturers have chosen to completely ignore.

Easy to Read Timing Marks - Our dampers all feature clear, white easy to read timing marks against a painted black background. In addition, we engrave a mark every 90° which is also painted white. (90° marks not on small block Ford dampers)

Warranty - With all of our products, we offer a one year limited warranty, including dampers used in racing applications. Compare that to many damper companies who offer no warranty whatsoever. We manufacture a high quality product and we stand behind it.

Bonded Construction - All of our dampers feature a bonding process which adheres the elastomer to the I.D. of the inertia ring and the O.D. of the hub. Through subsequent research and development we have perfected a new process that utilizes a stronger adhesive along with an improved elastomer that creates a much stronger bond. It now takes twice the force to separate the hub from the ring as it did with our previous bonding system. Our current design is practically indestructible.

  

Small block Chevy - These engines have used three different timing pointer locations. Pre '69 engines have the TDC mark 2° to the left of the keyway centerline. The '69 to '85 dampers have the TDC mark 10° to the left of the keyway centerline. The 1986 to 1991/1992 have the TDC mark 40° to the left of the timing mark. All of our SB Chevy dampers, as well as all other aftermarket dampers, use the 10° TDC position. Our 6.75" diameter models have two TDC marks, one that is 10° and one that is 40° to the left of the timing mark. If you have a pre '69 vehicle you can use one of the aftermarket bolt-on timing pointers to align correctly with the timing marks on our dampers.

Small & Big Block Chevy - Both of these styles of engines utilize both internal and external balance dampers. All of our external dampers have bolt-in counterweights. Other than that, the dampers are identical for each style engine. So it is possible to have an internally balanced damper and convert it to external simply by adding one of our optional counterweights. Some big blocks may require an aftermarket timing pointer to align with the TDC mark on all our dampers.

Small Block Ford - Small block Ford (260/289/302/351/5.0L) dampers were made in five different lengths, two different accessory bolt patterns, and with two different external counterweights. We make two models; the 80006/90006 has the 28.4 in. oz. counterweight and the 80007/90007 has the 50 in. oz. counterweight. Both of these dampers are made to the early style shortest length. This will allow users to install '81 & later 5.0L engines (w/50 in. oz. dampers) in early Mustangs or street rods and have more clearance in the front than if they had the stock longer damper. Our dampers also have both 3 and 4-bolt pulley patterns so either early or late pulleys can be used. For later applications with longer dampers, we offer a series of three inexpensive aluminum spacers (see photo below) that accommodate these various applications. Because some of the early three bolt accessory pulleys piloted on a male boss and some piloted into a female bore, we also provide (with every damper) a special pilot adapter to accommodate either style. Both our Ford small block dampers have three sets of timing marks on them to accommodate the various timing pointer locations Ford used. To the best of our knowledge, between our two dampers and three spacers, we can fit nearly every SB Ford engine ever made.

How to Determine Which Ford Spacer To Use - Measure the overall length of your damper from the end of the snout to the front pulley face. If it is 3” long, no spacers are required. If it is 3.187” long, you can modify spacer #81006 to work. (See instructions that come with the damper) If it is 3.375” long, use spacer #81006. If it’s 3.875” long, use spacer #81008. If it’s 4.0” long, use spacer #81007.

Pontiac V8 - Our Pontiac dampers can be used on 1961 through 1979 V8 engines. However, in order to fit 1961 through 1968 you must use a '69 or later front timing cover, water pump, and related accessories. This damper has the stock accessory pulley bolt holes as well as a big block Chevy bolt pattern.

Small Block Chrysler - We provide one damper model that can be used without a counterweight for internally balanced engines. Or use one of three supplied counterweights for other engines.
The 80012 and 90012 Dampers will fit the following applications:

• a. All internally balanced 318 V8 standard and Magnum, all internally balanced 273 and 340 engines w/forged cranks. No counterweight is used with any of these applications.
• b. 340 externally balanced 1972-’73 engines w/cast crank. Use supplied 91014 counterweight.
• c. 360 externally balanced 1993-’97 engines w/cast crank. Use supplied 91013 counterweight. Will not work with '93-'97 5.9L Magnum engine.
• d. 360 externally balanced 1971-’92 engines w/cast crank. Use supplied 91012 counterweight.

Big Block FE Ford - Our damper is identical in fit and function to the original big block FE Ford dampers. It is supplied with a matching bolt-on single v-groove accessory pulley which may or may not be required in all applications. This damper is classed as an internally balanced damper although the 428 FE is externally balanced. On that engine all of the external weight is on the flexplate or flywheel. The damper is still a neutral balance damper and has no weight attached to it. All other FE engines (except 428) are internally balanced.

Big Block 429-460 Ford - This damper utilizes a separate counterweight that is a spacer that goes over the crank and behind the damper. These weights are available from your Ford dealer (#M-6359-D460) and must be used unless the engine assembly has been converted to an internally balanced engine by incorporating heavy metal in the crankshaft. These engines have used different timing pointer locations. Looking at the front, most of these engines have a timing pointer in the "10 o'clock" position. Using the 1/4" keyway in our damper correctly positions the damper on a production crank (or aftermarket crank machined to stock specs) so a "10 o'clock" pointer lines up with the damper TDC mark. Use the 3/16" keyway with Ford Racing cranks #M63030-A600 and B600 to again align a "10 o'clock" pointer to the damper's TDC mark.


Both of our small block Ford dampers are made to the early short length. To accommodate the various length dampers Ford has made for this engine family, we offer three optional inexpensive aluminum spacers to provide proper pulley alignment. This design provides maximum flexibility. It permits the installation of late engines in early chassis although the early pulleys and accessory brackets will need to be used. It also will allow you to install late pulleys and accessories on an early engine with the 28 oz. in. c'weight.