PEC pistons for the win!!!
Z20Let Mahle Pistons
Started by
andywilson
, Jul 06 2011 03:18 PM
21 replies to this topic
#21
chrisgold
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pembrokeshireremapping.co.uk
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Posted 30 August 2012 - 01:10 PM
#22
Nev
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Posted 30 August 2012 - 03:03 PM
Chris, I don't know whether you realise it, but those PEC pistons require almost double the pistons to bore clearance compared to the Z20LET or C20LET ones. This is like putting partly worn pistons into your brand new engine and as a result your engine life will likely be shorter.
On the whole, IMO fully forged pistons are best avoided unless you are happy to re-bore/re-hone/re-ring your engine twice as often as you need to. I have a friend with a 550 BHP Cosworth YB engine that had to have new rings at just 20,000 miles due to forged pistons 
Edited by Nev, 30 August 2012 - 03:11 PM.
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