Alusil Pistons

[gruhsy]

I reached out to Racers Edge regarding Wossner Pistons.

The issue was resolved. Wossner is no longer using the coating that was the issue. For specific details on that contact Karl at Racers Edge.

Alusil Pistons are now PC-9 coated for Alusil.

Wossner also lists 2 different part numbers for 944 turbos.

The screenshot is from a Wossner Piston catalogue for reference not Racers Edge.

One part number for Alusil blocks

A second part number for non Alusil blocks

I would recommend that anyone in the US to reach out to Karl at Racers Edge if buying Wossner.

Racers Edge deal with 944 stuff as many on here are probably familiar.

Something went wrong the first time when I uploaded the screenshot that’s why there are two

.

[Tom]

Worth noting that Swain's own website says PC-9 works well with nickasil, chrome or iron cylinder bores, but Alusil is conspicuously missing from that list. I've read anecdotal reports saying pc-9 works in the 944, along with plenty of seller claims, but I'm not sure how much real world validation we really have?

https://swaintech.com/race-coatings/rac ... on-skirts/

Some readings on the iron-based Mahle piston coatings...

https://docs.lnengineering.com/article/ ... n-coatings