We are going with new rings in the RAT 2170
Not sure what brand. We are leaving it up to the machinist George as he is the expert in this area same with parts like RAT mod oil pump that failed. The machinist is your best friend. I guess that we are lucky to have some of the last knowledgeable air cooled machinist's still working in this country close to my home. West LA
Bob B Burton
Click to view attachmentClick to view attachment Click to view attachmentClick to view attachmentClick to view attachment DEVES Piston Rings, CUSTOM, Set of 4 are the finest piston rings you can get for your VW or Porsche Engine! Painstakingly made from the highest quality Swedish Steel, Deves rings break in FAST and DO NOT LEAK! This is a custom set, during checkout you must tell us the bore size, and top/2nd/oil ring thicknesses, IN MILLIMETER! Typical sizes are 1, 1.5, 1.75, 2, 2.5, 4, 5mm, etc. Put this information in the "Order Notes" field during checkout. A 85.5mm set with 2mm top, 2mm 2nd and 5mm oil will be listed as "85.5/2/2/5mm" in the order notes WHICH YOU MUST PUT IN.
We have been selling and using Deves rings for a long time, and feel they are BY FAR THE BEST RINGS AVAILABLE FOR YOUR AIR COOLED ENGINE! Instead of taking 500-1000 miles to break in (blow by, oil usage, overheating, etc), they are often fully broken in after 5-10 MINUTES of run-time on the engine stand or in the garage! If you have ever fought with trying to break in Mahle, Grant, or Total Seal rings, you will REALLY appreciate these, especially if you have ever had to go through the headache of an engine with rings that won't break in properly!
This is a set of 12 rings to do one 4 cylinder engine.
The Material -
The finest Swedish steel is used, from the masters in advanced metallurgy, in a special composition alloy, designed for high heat transfer, high flexibility and low wear rates. These are characteristics yield performance that are unmatched by any other line of piston rings - American or Foreign!
The Design -
Deves rings and ring sets are based on detailed engineering drawings as well as actual engines. All Deves rings are checked for fit by a specially-designed light-beam microscope (if light doesn't get through, neither will oil or compression!), and they meet or exceed all SAE, DIN, and BNA standards.
The Features -
All Deves rings (Compression, Scraper, and Oil control) are made in the necessary lengths and widths, and in various thickness' to ensure the proper tension against the cylinder walls.Not One Size Fits None like some other brands!
Expander rings are slotted to prevent any possibility of clogging.
Oil rings consist of two laminated rings, which sit at the top and bottom of the groove, separated by a spacer, and also contact an expander ring.
Scraper rings use an expander ring under the scraper to provide proper tension.
Price:
$99.95
Availability: Made to Order Item - Fabrication time varies (2-4 weeks!)