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jeeppro 01-19-2010 11:55 PM

harmonic balancer
who all has installed the harmonic balancer:thumbsup:

jeeppro 01-20-2010 12:08 AM

Re: harmonic balancer

JeepKid 01-20-2010 12:12 AM

Re: harmonic balancer
What is it? lol

mjl2610 01-20-2010 12:13 AM

Re: harmonic balancer
I was thinking about it but then i decided not to... lol. :rolleyes:

jeeppro 01-20-2010 12:13 AM

Re: harmonic balancer
1999-2007 3.7L & 4.7L - ATI "SUPER DAMPER"


Basic Options:
*** MUST CHOOSE OPTION BELOW *** 6" ATI DAMPER - (25 percent) UNDERDRIVE PULLEY - 3.7L / 4.7L 6" ATI DAMPER - OEM DIA. PULLEY - 3.7L / 4.7L 7" (500 HP+) ATI DAMPER - (25 percent) UNDERDRIVE PULLEY - 3.7L / 4.7L 7" (500 HP+) ATI DAMPER - OEM DIA. PULLEY - 3.7L / 4.7L

Combo Deals:
1999-2007 4.7L 6-Rib - MSD Alternator Pulley Kit
PART #51901
$51.99 $46.99
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$120.00 $120.00
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(Texas residents, add 8.25% tax)


The patented ATI Super Damper is the only damper designed exclusively for high rpm performance engines. FINALLY available to the 4.7L community!

FINALLY available to the 4.7L community! There are two options to chose from. The 6" Damper is best for applications up to 500HP. It weighs approximately 2.5lbs less then the 7" Damper.
The 7" Damper should be used for applications OVER 500HP.
The proven elastomer design is actually two dampers in one: a 4" diameter and a 7" diameter damper contained in two shells that bolt to the crank hub. The inner and outer shells are available in steel and in aluminum to contain the steel inertia weight. The inertia weight has eight computer machined grooves to retain the proper durometer O-rings (dyno tested for each application), and installed at ATI. O-ring life has been tested to over two million cycles in Winston Cup competition and 10 years in drag racing engines. The unit is rebuild able to new specifications by installing new O-rings. Extensive dyno and on-track testing has proven the Super Damper far superior to all other designs, especially on engines that turn over 6000 rpm, and is used on nearly 100 percent of all Winston Cup engines. Shells are black zinc chromate finished, with computer controlled, laser engraved 360 timing marks. Exceeds SFI 18.1 specs.
* Eliminates torsional crankshaft vibrations
* Exceeds SFI 18.1 specs
* Black zinc chromate finished
* OEM equipment on 392 Mopar Crate Engines
* Tunable, rebuild-able, and extremely efficient at ALL RPM
* Laser engraved 360 timing marks

Under drive pulley systems increase engine horsepower by reducing the amount of power required to drive external accessories. For example, the alternator, power steering, water pump and air conditioner all rob horsepower from the engine. By replacing factory-sized crank and accessory drive pulleys with a resized pulley, the accessories are slowed, resulting in more horsepower available to drive the rear wheels.
RECOMMENDED BELT: Goodyear 4060855 Gatorback Poly V-Belt - Can be found at your local part store.

For those who dont know what a balancer does or why its important to step up to a performance balancer here is some incite I put together found on the web. The main function of the engine system is to convert gasoline or diesel if its a diesel engine into motion so that you car can move. And this is done by burning it inside the engine which is known as the internal combustion engine. The engine system is composed of various parts and damage to any of these parts will greatly affect the overall performance of the engine that is why some materials and devices are attached to it to prevent this problem. One of which is the harmonic balancer.
The harmonic balancer, which is also known as a harmonic damper, is essential to the longevity of an engine since it prevents crankshaft failure. It is usually mounted at the front end of the crankshaft in order to absorb and dissipate the majority of the vibration energy. It consists of the hub, an outer weight ring, and a sandwiched layer of flexible rubber. It is the rubber that absorbs the energy of the vibrating crankshaft in the form of heat, damping the amount of vibration to within safe limits.
The crankshaft is the part of the engine that converts the up and down motion of the pistons and connecting rods during the combustion cycle into rotary motion that spins the transmission and the vehicle’s drive wheels. Every time a cylinder fires, the force twists the crankshaft. When the cylinder stops firing the force ceases to act and the crankshaft starts to return to the untwisted position. However, the crankshaft will overshoot and begin to twist in the opposite direction, and then back again. Eventually the crankshaft will experience torsional vibration which can cause it to fail after some time.
In order to keep this problem from occurring, installing a harmonic balancer for your vehicle is necessary.

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This kit will ship as a SERVICEABLE kit. It will come with Anti-seize for the threads of the bolts on the tool. This kit is the most complete kit you will find for a one stop removal and installation.
When the tools are returned in working order we will refund the remaining balance.
So when you order the kit and you use the tool and return it within one week we will refund you the remaining balance minus the rental fee + shipping cost. Customers pay for shipping on all tool rentals.
Customer is responsible for the kit while in their possession. We will inspect all tools prior to issuing the deposit refund. Damaged tools will be the responsibility of the customer to replace. We include HIGH IMPACT

Scottina06 01-20-2010 12:37 AM

Re: harmonic balancer
I have one....but I didnt install it. Richie has one too

downstate 01-20-2010 01:04 AM

Re: harmonic balancer
i have one, installed it too. i also have the tool you need to install it.

Escape 01-20-2010 11:23 AM

Re: harmonic balancer
I have one also.

jeeppro 01-20-2010 07:06 PM

Re: harmonic balancer
notice any difference

downstate 01-20-2010 07:21 PM

Re: harmonic balancer

Originally Posted by jeeppro (Post 135873)
notice any difference

i got mine installed right after my jeep had a rebuilt transmission so its hard to tell what the pulley is doing since the jeep rides all different anyways with the new tranny.

i'll let you know when we go to the track, but again new transmission for me so get someone else to chime in.

Escape 01-20-2010 07:53 PM

Re: harmonic balancer
Everything was redone at the same time so I really don't know if it helped any in the performance realm.

scjeep4.7HO 01-20-2010 09:10 PM

Re: harmonic balancer
I have one on the new engine.

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