Fuel tuning...

[Clarence Wood]

  This question may seem stupid, but please don't laugh.  How do you determine degrees advance while you are driving down the road?  I couldn't get anybody to hang over my fender with a timing light; well, I found one guy but he couldn't remember what he saw.

Clarence

At 06:43 PM 3/16/99 -0500, you wrote:
>At 04:08 PM 3/14/99 -0500, you wrote:
>
>>>Depending on speed, at 70MPH I see between 35 and 40 degrees advance at
>>>cruise... lower speeds around town, 23-30 degrees seems to be "normal"
>>
>>This got an AL head?.  cruise might be a tad high (40), and cruise (low) of
>>23
>>low..     The 23 being low is for a cruise rpm of no less than about 1400,
>>if you have one of the applications that can do a low cruise of say 1100
>>then 23 might be fine, just I usually don't deal with anything that can do
>>that low of cruise rpm.
>>>
>
>Well,
>not sure if the last post made it... had an attachment I had toconvert to
>text...
>
>Yesterday, during cruise at 45 MPH in 3rd gear ~1500 RPM I see about 30
>degrees advance.
>In OD at 65MPH (1700 RPM) I see between 35 and 40 degrees advance.  At part
>throttle accelerating up a hill at 2500 RPM I see about 30 degrees advance
>and no knock counts.  
>I seem to pick up between 10 and 15 knock counts immediately after a shift
>and timing falls to between 10 and 12 degrees then starts climbing back up
>again.
>
>
>Here's what I see at WOT immediately before the shift to 2nd gear:LeSabre
>Data Scanner
>
>Promld               1694
>Battery Voltage   13.50 Volts
>02  Voltage          910.20mV
>Coolant Temp      198.95 Deg  F
>Knock Counts      136
>Engine RPM        5221 RPM
>Speed                48 MPH
>LV8                   225
>Run Time           1277 Seconds
>TC Slip               251.00
>N/V Ratio           105.00
>Injector PW         18.91 mSec
>TPS Voltage       4.34	Volts
>02 Cross Counts   0
>air Temp             47.75  Deg  F  
>advance             20.47	Deg
>Engine Torque     92 Lb/Ft
>MAF                  140.78 G/Sec
>Weak Cylinder     0 Cyl
>Gear                   2
>TCC PWM DC     0.00
>Trans Temp        157.10 Deg. F
>
>Hopefully this helps or can give an idea of what I'm seeing or where I need
>to go... 
>===========================================================
>           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
>     Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
>       I am Pentium of Borg...division is futile...you will be approximated.
>===========================================================
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