Balance Shaft Removal Kit

[AzMz3]

and the funny thing is you get considerably more gain out of a fly wheel the you would removing your balence shaft.



F-ing people are always looking for stupid ass ways to improve performance yet a lot and up decreasing it.

your the same kind of guys who remove your interior from you daily driver to shed wieght.

Have you actually tested this out?
And I don't really like running a lightened FW with a turbo!
And as stated the extra quart of oil you gain is definately a benefit.
And the BSD is actually easier to do than the FW!

Only thing stupid is the people complaining about it yet know little to nothing about the balance shafts of the Mazda3!

 

[wicked]

Have you actually tested this out?
And I don't really like running a lightened FW with a turbo!
And as stated the extra quart of oil you gain is definately a benefit.
And the BSD is actually easier to do than the FW!

Only thing stupid is the people complaining about it yet know little to nothing about the balance shafts of the Mazda3!

you assume we know nothing about it?



hears a tip.
the balance shaft works like a harmonic balencer and keeps vibration down,not only for you the driver,but for the life of the engine.
you ever see a engine put together without proper balencing?I have,lots.
you know what happens?you end up having a engine that has a tendancie to spin bearings.

it's a lot of extra work to add a balance shaft to the design of a new engine,do you think these engineers just added it because it would be fun?no the added it because they new their was a need for it when they wear thinking out the specs for the crank.

 

[wicked]

It has nothing to do with the balance of the crank and pistons. It has to do more with the geometry within the engines design. The shafts precicely counteract the natural inertia motion that this particular engine makes.

As I said, so much more gain can be found at the Flywheel without giving up the reliability and smothness of the ballance shaft system.

I am with you on not removing it,it being used for counteracting vibration,but it in doing so it acts like you better balenced the engine prolonging life. of yourotating assembly,and helping relieve a lot of stress from the bearings.

 

[Mr. Win]

But you get more oil! That must count for something...

Seriously... what benefits do you get from removing this?

 

[AzMz3]

you assume we know nothing about it?



hears a tip.
the balance shaft works like a harmonic balencer and keeps vibration down,not only for you the driver,but for the life of the engine.
you ever see a engine put together without proper balencing?I have,lots.
you know what happens?you end up having a engine that has a tendancie to spin bearings.

it's a lot of extra work to add a balance shaft to the design of a new engine,do you think these engineers just added it because it would be fun?no the added it because they new their was a need for it when they wear thinking out the specs for the crank.

You just proved right there that you know nothing about it!
It has been beating to death by ignorant people who think they know how it works!
IT HAS NOTHING TO DO WITH THE BALANCING OF THE ENGINE INTERNALS OR THE LIFE OF THE ENGINE!
You do know that there are 2.3L duratecs over seas and even a few here that are making alot of power with no balance shafts. Big companies like Cosworth make a BSD for the 2.3L duratecs!
There are 2.3L Duratecs that don't have the balance shaft from the factory!

So yes you know absolutely nothing on the balance shafts of the 2.3L Duratec.

Anything else!

 

[Kansei]

I thought the 2.3 duratec was just the same block as the MZR.. it's all the same?

 

[ptperformance]

I am with you on not removing it,it being used for counteracting vibration,but it in doing so it acts like you better balenced the engine prolonging life. of yourotating assembly,and helping relieve a lot of stress from the bearings.

OK I want to give my .02 on this. It helps with removing vibrations but not the bad ones. The manufactures have gotten so good at building engines to where they never hit there negative frequency or what is called bad frequency. All motors have a bad spot in the RPM band them measure it in hertz and or frequency. Now 99% of the time this happens down very low in the RPM band or very high (over the redline of most cars).

Now you may ask what does this mean? It means that the balance shafts are put into our car for NVH (noise vibration harshness) to keep the customers happy, has no effect on the motors life if they are in or out (most occasions, read on). If you were to drive all day at that bad frequency it would hurt the motor with out the balance shafts in the car but the engineers have made it damn near impossible when they built the motor/PCM for you to drive you car that way (remember is down very low just above idle or very high above the red line).

Now will removing your balance shafts hurt the motor? No. They are installed in the car for NVH and that is it. They will give a significant feel of increased HP but its not HP that you are really gaining it the lack of rotating mass that makes the car feel faster. I dont know the exact specs but this is what I have found. The assembly is close to 30 lbs, the shafts are 6lbs a piece. Now I have no idea as to the speed that they turn (normally 2x the crank speed) nor how much weight they have off the center line of the shafts but lets just say there is 10 lbs of rotating mass that has a 4 CLR. At 6000 RPM that mass would equal close to carrying and additional 300 lbs in your car (another person). So consider why people feel an increase in performance from removing them, you dont have to fight them anymore and that gives the feel of additional HP just as a LW flywheel would.

The balance shafts being removed over a very long period of time could create and issue of longevity for the motor. It would take 100s of thousands of miles or just letting the car idle for years. You will do more harm to it by increasing the boost vs removing the balance shafts.

Now how about we talk about the down side of them, when you increase the HP levels of the stock motor is puts more strain on the balance shaft assembly thus creating a possible failure of the unit. You can only imagine what would happen if the BS assembly started to come apart (2 shafts weighing 6 lbs each driven 2x the crank speed) when that happens you might have wished you had taken them out. 90% off all motors that have modifications to increase the HP levels have some sort of BS removal kit. If you plan on upping the HP of you MS3 or 6 they should come out.

I hope this helps in better understanding the BS in our cars, thanks.

 

[ptperformance]

You just proved right there that you know nothing about it!
It has been beating to death by ignorant people who think they know how it works!
IT HAS NOTHING TO DO WITH THE BALANCING OF THE ENGINE INTERNALS OR THE LIFE OF THE ENGINE!
You do know that there are 2.3L duratecs over seas and even a few here that are making alot of power with no balance shafts. Big companies like Cosworth make a BSD for the 2.3L duratecs!
There are 2.3L Duratecs that don't have the balance shaft from the factory!

So yes you know absolutely nothing on the balance shafts of the 2.3L Duratec.

Anything else!

Are the 2.3 Duratec and the MS3/6 motor the same? I have not found anything that can confirm this. I know that the internals are different but the out side of the motor looks different as well, can any one confirm this?