R/C Tech Forums - View Single Post - black piston
Thread: black piston
View Single Post
Old 06-28-2011 | 05:52 AM
  #50  
ryWA
Tech Adept
 
Joined: Nov 2009
Posts: 115
From: Geraldton WA
Default
Originally Posted by Mark _australia
NOT being argumentative as you really know your stuff...... but almost every tuning article I've seen says to do HSN first.

Reason is that HSN is the 'master control' and if you lean the HSN it also leans the LSN a bit - the LSN is only the fine control for the bottom 1/4 of throttle opening.
If you get the LSN right, and then change the HSN, you will have altered your LSN setting a bit.

I would say get HSN right, then LSN using the pinch test (and 10sec idle followed by punching it off the line will help).

Not saying you are wrong, but why do you advocate the opposite to most tuning guides?
Nova base engines tune from the bottom first. You leave the top a bit rich, get the bottom tuned in then retune the top. OS engines tune top first then bottom, so it all depends opn the engine you run, and how the way it works for you!
ryWA is offline  
Reply