Balancing the crank? Worth it?

[turbovanman]

Quote:

[i] You should also see about getting a full floating setup. [/b]

All turbo motors, well at least 87 and up came with full floating pistons, stock! Just make sure you get new bushings installed and resized when you get new pistons!
Also use Arp rod bolts, small block Dodge rod bolts are the same, so you get 8 pairs and will have spares, lol. And of course get your rods resized."thumbs up

[altered7151]

I just read somewhere, that 1 ounce static is equal to somewhere in the ballpark of 600-700 pounds of force at 6000 rpm just to put all this in perspective. I think a stock motor or up to like the 220 hp range would be fine without it, but above that balancing makes sense. The purpose of your motor is to create energy, any energy that is lost to parasite forces ( vibration, noise, heat, etc.) doesn't go into energy output to the tranny. You might not see a huge increase in power, but you will probably achieve rpm's quicker, and it will definitally make your bearings happy!

srry i did not see him post the year of the car! I guess if I had paid attention that it was a 2.5 turbo I would have known. Glad you caught that one, we'd a had a catastrophy on our hands!! Whew! blah...

[turbovanman]

Too funny!!!!!!!! Darkshadowz

[DOHCRT]

Just a few tips here...

Balance the whole assembly, crank-rods-pistons-rings only.

Balance the flywheel and clutch to zero by themselves not part of the assembly, because if you change flywheels, clutch etc. your whole engine balance will be off.

Any Machine shop worth a **** will know how to do this right...

[B4C94]

I had my entire assembly balanced, fly wheel to rings and It is the smoothest 2.2l I've ever driven, much more than my origonal stock T2. I did this so I could change clutchs (which I've done 3 times as HP increases).

my question is...can I take my balanced flywheel off (indexed to the crank of course) and have it lightened when I put my new 568 in??

-=Mike B.

[GLHS0658]

Yes you can have the flywheel lightened. It should be rebalanced before you reinstall it. I had mine lightened, balanced and resurfaced.

[B4C94]

but if the flywheel was balanced to the crank and rotating assembly how due you guarantee that it will still be balanced as an assembly after lightening??? or due they balance the fly wheel separate from the crank/rods/pistons.


-=MIke B.

[turbovanman]

It depends on if they balanced the flywheel seperately or as a unit. If seperate, no biggie but any balanacing shop should be able to set it back up without tearing the engine apart! Just rebalance the flywheel and new pressure plate or vice versa!

[GLHS0658]

they are balanced separately. You can even give the clutch to the machine shop to make sure that is bakanced as well