need some help,,, any of you bought je pistons??

[zlobo]

I am wondering how much clerance the piston rings shuld have?
1rst ring?
2nd ring?
oil rings?

And what about the spiro locks how many did you get for one piston 2 or 4?
i am missing them got no in the box at all.. where do i order them?? found a site in us 0.99$ a pice problem is that i have to at least by for 30$ and then shiping 35$

link to the document i got with the pistons here

[zlobo]

no boddy knows??

but i know now,,

street moderate turbo.
topp 0,412mm
2:nd 0,45mm
oil ring 1,2mm


Racing overbosting
topp 0,5mm
2:nd 0,5mm
oil ring 1,2mm

and you shuld use 4 spiro locks on one piston.
so now you know.

[Mark Halligan]

Zlobo

Be careful, JE provide two types of lock for the wrist pins, spiro locks and wire locks (wire locks are 2 per piston like OEM).

AFAIK you should not use spiro locks in pin bores machined for wire locks and vice versa, to be honest all of the JE's I have seen for audi (not many) have been machined for wire locks.

One way of knowing what type of lock you should use is by the P# of the pins they supplied with the pistons. For instance if the pin P# is 787-2500-14-51 C, the "C" indicates that the pin is chamfered for use with wire locks. If the P# is 787-2500-14-51 S, the "S" the pin is designed for use with Spiro and Tru arc type locks.

Who supplied you with the pistons? It is very bad that they did not supply them with the pin locks and you should not have to buy them as extras.

More info here http://www.jepistons.com/pdf/2006-sportcomp.pdf

[zlobo]

i suld be 812-042-cs for my pistons and it shuld be duble. the sulyer was race engeneering i think. yes they shuld be int the box but they was not..