This specific Precision shaftwheel’s blades measure 1.4mm thick and this specific component is made in China by a company called Worldturbocharger, this company is well known for manufacturing “copy” products of OEM original Garrett, KKK, IHI, Holset etc – this company uses a material called K18 for the turbine head, which is a steel derivative with a high thermal ceiling, but by no means anywhere near the same quality as the Inconel 713LC material used by Garrett, KKK or Holset, hence the thicker blades on the Precision turbine, thicker blades simply mean more weight, and for any component which relies on its ability to accelerate, weight is not great. The shaft also appears to have been friction welded onto the turbine head.

Precision is a company that up until recently was really just a distributor of Garrett turbo’s. They would take Garrett turbo’s and resell them, mainly focusing on the aftermarket scene. Then they started to modify Garrett turbo’s and openly advertise how their turbo’s were out performing standard Garrett turbo’s. As you can guess Garrett wasn’t happy about that. You would have to assume Precision as a company knew what they were doing. We have all heard the saying: “you shouldn’t crap where you sleep”. Garrett then cut off precision as a supplier.