Hi,
i am just in the first steps starting a cosworth yb turbo engine, S60 ecu.
Engine runs, checking the ignition with a conventional timing light. Timing set at 16 BTDC in the igniton map at idle rpms. The light shows the timing around 30.
If i had put 235 deg in the sensor position earlier and reduce that number to 220 it will retard my timing by 15 deg?
thanks
CPS position vs ignition
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: CPS position vs ignition
crank trigger ?
what ignition system are you using ?
ideally baseline timing at a fixed 0deg, that removes any chance of error from wasted spark and dialback lights.
Also verify at say 10deg and 20deg, and at a couple of different rpm's
And just change the numbers and watch what way they need to go to get the end result you want
what ignition system are you using ?
ideally baseline timing at a fixed 0deg, that removes any chance of error from wasted spark and dialback lights.
Also verify at say 10deg and 20deg, and at a couple of different rpm's
And just change the numbers and watch what way they need to go to get the end result you want
Re: CPS position vs ignition
Yes, crank trigger only, no cam sensor. Wasted spark.
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: CPS position vs ignition
Then as per instructions, depending on light etc and numbers used, timing on a light can appear double actual.
Do the tests I listed.
Do the tests I listed.