Did Mazda originally balance the rotating assembly and flywheel at the factory? I've got an ACT lightweight flywheel (4.4kg) on my RX8 and it does vibrate slightly at idle, assumed it would have been ok to put on but having second doubts now having seen this vid.
hmm... on my rx-8, in the region of 1150 - 1400 rpm, a strange vibration appears, which is not expressed at all at idle, and at rpm above 1500 it is no longer present at all. This became noticeable after the factory engine mounts died. Then I replaced them with stiffer ones (relative to the whole factory ones) and durable polyurethane ones from Nikon Rotary - the problem did not go away. All this makes me think about the poor balancing of my factory engine, which is not clear how to fix it.
Just get the heaviest aftermarket counterweight and then balance it. Way easier to take weight out than to add weight… and 1/2 the balancers can’t weld for shit so saves that drama.
totally agree. I said the same thing to the balancer guy... put some pride in. I think i even mention that its ugly in the video but that's not the discussion at hand. Reality is Functionality is there and it not visible at any time once in use. I'd be more mad at the shops that cut on the rotor itself. hence why we do the same as the factory and balance the weights to the rotors. thanks for saying it looks terrible, i guess. lol
I agree it's all about the balancing and true nobody will ever see it once the flywheel and clutch assembly is fitted and the g box on . But I am a welder tradesman professional tig welder ... I do love you're work ..just looked terrible 😕
Did Mazda originally balance the rotating assembly and flywheel at the factory?
I've got an ACT lightweight flywheel (4.4kg) on my RX8 and it does vibrate slightly at idle, assumed it would have been ok to put on but having second doubts now having seen this vid.
Factory assemblies are balanced but. Mazdatrix has a higher standard than OEM. For racing, higher rpm, higher boost...
Does the counter weigh have to be the same weigh as the rotor? Can you help me understand better I'm planning a turbo build.
No. It's a mathematical equation based or rotation circumference
Renesis hybrid build been scrapped?
nope. still a go.
hmm... on my rx-8, in the region of 1150 - 1400 rpm, a strange vibration appears, which is not expressed at all at idle, and at rpm above 1500 it is no longer present at all.
This became noticeable after the factory engine mounts died. Then I replaced them with stiffer ones (relative to the whole factory ones) and durable polyurethane ones from Nikon Rotary - the problem did not go away. All this makes me think about the poor balancing of my factory engine, which is not clear how to fix it.
go back to OEM mounts
Just get the heaviest aftermarket counterweight and then balance it. Way easier to take weight out than to add weight… and 1/2 the balancers can’t weld for shit so saves that drama.
Yep. When possible start heavy.
OEM ones our usually cheaper ebay for the win
Yep. OEM still the best
Looks terrible Kyle.
totally agree. I said the same thing to the balancer guy... put some pride in. I think i even mention that its ugly in the video but that's not the discussion at hand. Reality is Functionality is there and it not visible at any time once in use. I'd be more mad at the shops that cut on the rotor itself. hence why we do the same as the factory and balance the weights to the rotors. thanks for saying it looks terrible, i guess. lol
I agree it's all about the balancing and true nobody will ever see it once the flywheel and clutch assembly is fitted and the g box on . But I am a welder tradesman professional tig welder ... I do love you're work ..just looked terrible 😕
@indracook1910 good thing it's not my welding