Thread: K27HF vs K29?
View Single Post
JFairman JFairman is offline
Registered User
Join Date: Jul 2006
Location: S. Florida
Posts: 7,289
The HFS is a K27 7200 with a large heavy Holset compressor wheel fitted on it and cold side housing to fit over the Holset wheel that was not made by 3K Borg Warner.
They come with a 270 degree thrust bearing that can leak oil into the compressor housing if the air cleaner is too small or dirty and restrictive causing too much vacuum in the air intake before the turbo. Upgrading to a 360 degree thrust bearing is a huge improvement and reduces the chances of a K27 high flow smoke turbo.

I don't know all the differences in it and a K29, but the compressor wheel on a K29 is not a Holset wheel and I think the turbine side is larger than a K27 7200 or a K27 7006.

If you want accurate answers and the best turbo rebuild possible in the USA call Durabilt turbo and ask them.
Old 05-20-2013, 07:22 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)