I have a few pictures of my sfmu and was wondering if anyone could tell me what ring disc spring combo this is,

Your first pic has the smaller disk/ring, i think its the 2.24" or something like that..The larger ring there is the 2.72" ring, where the disk that fits in that ring, has about a 1/4" gap all around. Do NOT use both of those rings at the same time..The 2.72" ring is the only one that does not fit perfectly around the disk..Just take a tape measure and measure the diameter of the DISK, and that tells you what size it is.

Alright, so I have 2 different rings, and one disc? Which of these rings should I use for stock injectors (I know its stupid but I don't have my 30lbs injectors yet). Also, which spring is that, the silver spring, and can I use that one with stock injectors.

Originally posted by safedawg
Alright, so I have 2 different rings, and one disc? Which of these rings should I use for stock injectors (I know its stupid but I don't have my 30lbs injectors yet). Also, which spring is that, the silver spring, and can I use that one with stock injectors.

For stock injectors, you want to use the largest disk. I believe its the 3.4x" something size..This disk, does NOT use a ring at all. You also want to use the shorter, darker colored spring. Its a bit stifer over the silver one..

Great, thanks for the help.