i found this website in my import mag and checked it out.they are in the process of making one for the 350z which is the same engine.it s called fluidampr.i think i m gonna get this over the ur one. it s got the ring built in.check it out at fluidampr.com
ltr

 

From what I remember, they make a very good product. Their main interest tho is balance rather than light weight. Some of their balancers are very heavy.

 

Thats true, fluidamper mostly makes dampers for extremely tuned cars that need more crank damping than the stock unit can do. Therefore, weight is not a factor.

 

thanks for the info, didn t know if they were lght weight or not