[christianchevell]

LOL the reason many want to underdrive is to free up what little HP they think they can gain. Being cammed my car is at 950 idle way up from stock and that's how I can get away with a 25% underdrive for the electrical: not the AC and its a fluidampr eliminating the harmful vibrations to my engine from it being radical cammed.

I have seen over the years on here guys have trouble with cheaper balancers, some that are like stock with the rubber breaking apart..... SLP or such I think, and anyway I avoided that, and I know Fluidamprs the best with viscous silicone fluid inside and not a stupid almost factory with a rubber isolation ring between the this and that, and have seen factory ones fall apart on here too......And our engine s are internally balanced so the stock one is just like a non harmonic balancer , its just a cheapo balancer support for a pulley , and vibration elimination is not what its for really compared to old school Harmonic balancers as it does not have the mass..... And the balancer is important for things and many ignore it......

The thing is it does come back to haunt you down the road like not breaking in the cam if you got a cam that's not hardened enough with out help from a proper break in like the springs need also. Vibrations harm the timing chain, also bearings...... and That takes time to hurt .... I also have a 13 and do not have the power steering pump to deal with also. And just so you know yes a new balancer bolt of course is required. And many people just use the stock balancer ..the majority of cammed people because it is internally balanced, its just that I know their idea of balancing is wider than a lot of machinists like and I agree. And a cammed motor will rock a lot more and be harder to keep harmful vibrations down in the crank/cam....

SO think again..... your idle will be up..... But the real purpose is to protect your engine to spend the money.