Trimble method for piston rings

[petertha]

PM-d you. I wonder if .XLS spreadsheets are not an allowed upload format?

[Kim]

I was able to download and open it.  You might try again Dave.
What version of Excel are you using?  I opened it with office 365 (the new *stupid* subscription version of the office tools).

Kim

[gunna]

It opens ok in Libre Office.

Ian.

[steamer]

Petertha sent me a hard copy via email and it opened just fine.....and when I try opening it the file on the forum this morning

IT OPENED........must have been a burr.....

Thanks Petertha!!!



Dave

[petertha]

I'm always a bit apprehensive about sharing home brew tools for personal consumption, but here are a few things I should mention just as FYI if you are not as familiar with Excel or possibly importing differently into other apps.

In the calc tab, if you hover over a (red) input cell that shows a little red triangle in the corner signifying a comment, it reveals some information related to that parameter to help you along.

In the fig-13 tab (which is named to coincide with plot recreation of SIC Figure 13) I directly import the Trimble parameters from calc tab (blue font). I also allow input any arbitrary parameters I call Engine X in order to show how it compares against the 4 constraint curves. You can turn this on & off using the plot filter button

[steamer]

Thanks Petertha!    I'll dig into that for sure.    my rings appear to be .0192 thick and .032-.037 wide.....little buggers!!

Dave

[stevehuckss396]

Those are huge! I just made the largest rings I ever made yesterday. They were .022 x .043. Made 42 of them needing 36. I look at builds like Rupnow and others with one inch or larger bores and think holy cow look how big the rings are. Cracks me up that you think they are little buggers. Eye of the beholder.

[steamer]

Those are huge! I just made the largest rings I ever made yesterday. They were .022 x .043. Made 42 of them needing 36. I look at builds like Rupnow and others with one inch or larger bores and think holy cow look how big the rings are. Cracks me up that you think they are little buggers. Eye of the beholder.

That it is bud!!!   I'm contemplating the oil control rings