Jump to content

cast vs forged pistons?


Recommended Posts

Im just after some info on the pros and cons of each piston type. I need 68mm pistons for my rebuild and am looking at both cast and forged vitos pistons. Is the extra $60 a piston for forged worth it on a trail and occasional dune ridden banshee? This bike will get ridden max once a month... And im running the 68mm bore athena.. Cheers for any help

Link to comment
Share on other sites

Correct me if im wrong but i think weisco makes the vitos forged piston.

 

For your application there would be no problems with a cast piston but as stated your piston wall clearance must be rigjt or you could run into serious problems.

Link to comment
Share on other sites

serious problems like  broken intake skirts! i found that after 4 hours on the athena cast pistons... so forged are a lot more reliable i gather? are the vitos really that bad?

ya kinda answered your question about cast vs forged right there.. I would spend the money and get the wiesco's

Link to comment
Share on other sites

Yeah i wasnt 100% sure it was just a cast piston or that it was just an athena cast piston that made it shit! Are the vitos forged shit? Or the wsm? They are roughly $100 cheaper a set for me at the moment and wifey is starting to keep a close eye on how much this bike is costing...

Link to comment
Share on other sites

cast lasts longer as long as piston to wall clearance is good and tight.

 

fordged last longer for higher rpm motors and motors that are stressed more...

 

you could look at it like one is harder but more prone to breakage due to the hardness  the other is softer but more resilent to abuse and bad macnine clearances..

 

i have seen OEM cast pistons last for 6 years.....

Link to comment
Share on other sites

Ditch the Athena domes! Also TDR has the deals on WSM and I used them in my big bore motor with great success. The Vito's are fine as well. Just make sure you go forged!

Does anyone know what domes would fit this head? I cant seem to find any others from athena...

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...