Freestyle Pistons clearance

[lerott]

Hi all,
I need to rebuild my dasa 970cc (+10mm, 90mm pistons) and I've just received my new wiseco (dasa) pistons from chris aka jetmaniac. But I'm very surprise to see in the box 0.074mm clearance, I was thinking this small value is OK for prox or oem cast pistons and need more clearance for wiseco forged, something like 0.13mm
Any information about that ?

(sorry for meter value but it's easier in france to speak with machinist using this unity)

 

[Blue]

The clearance listed on the box is for an aircooled engine as thats what the pistons were originally used in. For watercooled use .0055 to .0060 inch you will need to convert to mm.

 

[lerott]

Thanks blue, converted in mm value is something between 0.14 and 0.15mm, sounds better and inline with what I was thinking

 

[Dartman]

no less than 0.13 mm with water line restritors to make sure you don't run it too cold

 

[lerott]

thanks ;-)