View Full Version : Need help with Tune pipe setting for OS70SZ-H
n003801
10-30-2005, 01:36 PM
I bought a new OS70SZ-H engine for my SkyFox SX.
Does anybody know what is a good starting point to setup the gap for the tune pipe ?
Has anybody used this engine with Vario helis ?
Thks
Christopher J
11-03-2005, 09:36 AM
12mm is your gap. Don't run more then 5-10%
Heli_jack
11-08-2005, 06:37 AM
Chris, that OS might need more nitro to reliably idle.
Jack
Heli_jack
11-08-2005, 09:53 AM
I have been informed that if this is a European engine it does not need the higher nitro, so I am shutting my fingers.
Thanks, sorry for any confusion
Jack
bighands3d
11-08-2005, 09:58 AM
If I were you I'd run the K&B 4520 glow plug with that set up. It's a hotter plug and works great. I use them in my OS WC.61 with MP I and the OS .70 on 20% nitro. Since you will be using lower nitro I would recomend it to help keep it light and make Idle a bit more reliable.