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#1 lawn bowls

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Posted 01 December 2018 - 01:42 AM

i have brought a set of used  80 over 202 dished forged pistons in very good condition acl brand.is there a way to tell the difference between a forged and a cast piston.the owner said they are forged.thankyou.



#2 rodomo

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Posted 01 December 2018 - 10:00 AM

Someone smarter than me might be able to answer this?

I just hope for your sake they are not forgeries :tomaatit:



#3 grumpy xu1

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Posted 01 December 2018 - 01:03 PM

Turn the piston upside down if the underside of the crown is rough, ie casting marks, they'll be cast or hyper, if they're all smooth, they should be forgies, look for casting marks around the gudgien pin area too.

Gudgeon I should have said i think.

#4 308 Sunbird

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Posted 01 December 2018 - 04:07 PM

I didn't think ACL made any forged pistons?



#5 grumpy xu1

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Posted 01 December 2018 - 04:23 PM

I didn't think ACL made any forged pistons?



I'm pretty sure that you're correct. I can't recall them, of the top of my head, race series at a guess. 80 thou in size, scares the crap out of me. I thought it's been proven that std size bore stays cooler & produces more hp, nowadays though. I would think that some new Hypereurtictic Pistons Would be okay with low boost, a decent boost controller, good timing & fuel distribution & no detination.




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