what is the gain from having an internally balanced crank as apposed to stock style balancing?

 

You have have the flywheel and clutch setup neutrally balanced and that will make changing those parts out much easier.

 

not worried about the parts changing aspect.

 

No advantage then. In super hi-po applications internal balance my be a little easier on parts.

Rich

 

in my opinion the internal revs quicker than external due to not having to "throw" weight in a circle all the time.
Internal balance parts are easier to come by.

 

There is just as much inertia when the weight is in the crank counterweights.

Rich

 

i agree, but isnt the weight on the flywheel/flexplate further out then the counterweight on the crank. that does make a difference. closer to center the better.

 

This has always been my understanding... less stress on the crank this way, doesn't change horsepower but I feel it allows the engine to spin faster and easier than external weights
Internal balance uses the matching weight of the RA to offset using external weight where external balance has to counter the weight of the crank using extra weight.
most of the new cranks out there very rarely have to add heavy metal anymore to get the balancing done.

 

But it requires less weight.

Rich