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Piston Boo Boo

devilsknife
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devilsknife Collaborator

devilsknife

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Posted (edited)

soo i think ive made a boo boo ages ago when i was lil excited and ordered my pistons

my pistons are

ARIAS AP332104

10.6cc dome top
21mm pin
1.280" compression height
Only stocked in 0.20 thou oversize (86.5mm).

head gasket hasnt been order yet and head CC is 53.5cc

and its for a neo head.......

if i fly cut the piston say .100

will this get me out of the poo and is it safe? or should i sell the pistons and buy flat tops or dish

also the comp im going for is 8.6.1 or just alil lower cause boost should be around 22psi maybe max 28psi


Edited by devilsknife
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Pridenjoy Apprentice

Pridenjoy

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I dont think safely machining the piston down enough will achieve near the 8.6;1 cr. If it were me i would find some new pistons or sacrifice and use a non neo head. With your current pistons, 53.5cc and say a 1.5mm head gasket @ 0mm piston to deck height will be 10+cr. all comes down to what the engine is going to be used for and what fuel will be used, ideally you wanna get into the 9.0:1 cr.

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