good harmonic balancer.

[TheRedBlur]

I plan on road racing and I want a good balancer. what do you guys run, what do you like, what do you recommend?
advice from engine builders are appreciated.

thanks!

 

[tjm73]

Bascially there are 2 types. Elastomere and fluid. Both are good. Recently I learned of a flip side to the fluid style damper. Some feel it may create a bad harmoinic on high rpm engines that are on/off the gas a lot (like road racing and drag racing).

The argument goes something like this. The fliud element of the damper holds some inertia. When you let off or get on the gas the fliud wants to stay at it's current velocity and balence. Until it changes to the new rpm, it's very slightly out of balence and thereby it's creating a bad harmonic. Sounds good, but may not be anything at all.

I'd run the FRPP M-6315-A50 damper for a 50oz balence engine or a M-6315-C351 for a 28.2oz balenced engine. Both are SFI 18-1 and both have a removable weight if you go to a zero balence style internal balence setup.

 

[Rick 91GT]

www.innovatorswest.com they make some very trick, lightweight balancers and they should take the continous rpm with no issues. I have one of these for my motor.

I have been installing a lot of the Pioneer balancers and they seen to be pretty nice, they are similar to a Romac at a cheaper price.

 

[runningmole]

Romac. Have one on my car. Pricey, but cheap insurance in a way

 

[TheRedBlur]

so no fluid dampers then? anybody use TCI?

 

[90mustangGT]

Romac. Have one on my car. Pricey, but cheap insurance in a way

Romac here also. $200 isn't bad as all for what you get. Look at the ATI bankbusters.

I've also heard that the fluid types can leak and are effected by age more than elastomer, and if the leak they are worse than no balancer at all.

 

[408stroker5.0]

I've heard alot of great thing's about ATI balancer's and the TCI Rattler. Although they really perform there best at higher RPM's and really don't belong on a street car. I know pretty much all the Nascar engine builder's are using the ATI's.
The above mentioned balancer's are great as well...I've used Streetdampr and Fluidampr for some year's and have never had any probelm's and have been impressed with there performance. Latley though there has been alot of people questioning them. Powerbond is also a farily decent balancer at an economical price.

 

[TheRedBlur]

hmm, redline is at 7k but motor signs off at maybe 65-6700

 

[TheRedBlur]

any more replies?

 

[1Slow5oh]

I notice a little bit of a shake at about 3-4 grand. Im not sure if its the balancer or not but would replacing it help lessen this or would I be wasting my money?

 

[TheRedBlur]

does it happen in gear or in neutral?

 

[HISSIN50]

does it happen in gear or in neutral?

and while stationary or while clipping along at some decent speed (to rule out DS vibes)?

 

[TheRedBlur]

what year is it? I know that the older firing order 5.0's are a little rough, has it always happened? I'd say get a new balancer just for piece of mind.