Hey guys a quick question about the ACT counterweights. I have searched for hours and can't seem to find what the difference is between the cw01 cw02 and cw03 counterweights offered for lightweight flywheel applications. If anyone knows of a thread with the answer or just knows the answer that would be great as I am replacing my clutch and flywheel asap!

Thanks

 

Any Ideas?

 

i believe only the cw03 is called for the rx8, the others are rx7's. Maybe we can get "Mr Flywheel" to comment.. paging Ray, Dr Ray to the forum please.

 

now we just need to get ray a pager and a lab coat

 

ok awesome. i will make sure to order that one with my new flywheel! thanks for the help!

 

ACT said that their counterweight is better balanced than Mazda's Auto counterweight.

is it? dunno.

I have it tho.

 

When I had my rotating assembly balanced I was shocked at how bad it was.....

the ACT counterweight was marginally better than the stock flywheel...but it was still a long way from balanced

There was 89+ gms difference in each end of the shaft....not great Mazda

 

I imagine some are better balanced than others..mine was on the poor end of the spectrum from what I was told

What do you mean by the second sentence?

 

For sure...most engines spend there time sub 6K RPM's most of the time...

It does explain why the race engines have been less reliable than they should be based on previous engines