I was just looking at FP's website for their ball bearing turbos. I was surprised to see that it says compatible with stock oil feed lines. I was under the impression they recommended using their feed line with the filter with the 0.020" restrictor. I guess I will call them on Monday, but in the meantime, I am wondering, is anyone using the stock feed line without having issues? I am not finding anything of much relevance in the search.

Thanks.

 

That's interesting. Call them Monday and let us know what they say.

 

I think their new Xona has restrictor inside the bearing housing so there's no need for separate inline filter. And their BB doesn't need much oil so oil fed from head is sufficient.

 

I agree, this is correct

 

Did they confirm what size the restrictor is .