Quote:
Originally Posted by MANDALAY
Ok like to share some info with you guys,
Looking at RODS. With the help of my fellow Aussie member DA HORSE which has a spare set of BEAMS rods one can see drilled holes on both ends of the rod, also a channel on the machined side of the big end.
All the sftermarket forge rods dont have this, There is a reason for YAMAHA to have put them in . Its only logical. Since im not willing to comptimise the design principle i rang Carrillo and they said they would replicate it 
I really wounder if anyone really has noticed this and took it into consideration.
BTW CARRILLO has been bought out by CP PISTONS 3 months ago |
Isn't CP owned by Pankl from Austria? They are a huge company last I checked, Carillo was always this small family run place IIRC. CP are huge in anything related to the rotating parts in high performance engines.
Yamaha probably feels it necessary to lube up a little extra at the wrist & bottom end pins, not sure if it is only the BEAMS rods though, pretty sure almost all rods get something similar. Lack of this lube channel might be because it is deemed unnecessary....Yamaha probably included it for safety & longevity.
Forged are probably harder, stretch less & expand/contract less. Therefor they do not have this issue that the oil can't pass through everywhere anymore because of heat-expansion, or whatever else. Probably guarantees oil lubrication up to a certain super high temp....cookie-cutter cast & machined rods can not guarantee this sort of operation at any temp.
New word by MANDALAY: comptimise, I think its l33t-sp33k