cos(15 deg) = 0.9659, approx.
82.2 deg C = 179.96 deg F
The most basic example you can have entails adding the positive and negative of the irrational to get zero: e + -e = 0 Another example you can give is to use compound angle formulae with trig: sin(15 deg)cos(75 deg) + sin(75 deg)cos(15 deg) = sin(90 deg) = 1
59 degrees F.
15 degrees C
1 (0 deg BTDC) - 5 (480 deg BTDC) - 3 (240 deg BTDC) - 6 (600 deg BTDC) - 2 (120 deg BTDC) - 4 (360 deg BTDC)
10 deg. BTDC aon an automatic, 5 deg btdc on manual
Stock ignition timing at idle is 6 deg BTDC +/- 1 deg. I like to set mine for about 7 or 8 deg BTDC. Kyrasis6 Mazdatruckin.com
8 deg. BTDC
10 deg BTDC
the factory setting is 6deg btdc, but mine seams to run better at about 7-8 deg btdc
6 deg BTDC
12 deg btdc @ 900 rpm
12 deg btdc with coolant sensor unplugged
Just set timing for 4 deg BTDC on my 69 runs great.
my corvette book says it should be for basic 4 deg btdc
YES IT IS + OR - 1 TO 2 DEGREES BEFORE TDC...