Just wanted to say.........
#24
Senior Member
Join Date: Jul 2008
Location: Long Beach Calimexifornia
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How great this forum is , everybody is so laid back and nobody gets there pantys in wad like on some other forums ive been on...... And the mods aint constantly pm'in you for even thankn about sayin a word like "*****" or anythang like that...... where all a bunch of grown guys here no need in gettin all offensive about little stuff like that.....
The mods are great here!!!!
F150Forum.com ROCKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The mods are great here!!!!
F150Forum.com ROCKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Really?
1.Fuel octane grade/ friend or foe?
2. Synthetic fluids/ especially in a higher mileage engine.
3.Thermostat choice, 160/180/195F?
4. Timing advance further than stock 10 BTDC
More?
Handling these issues (and others, upon request) gracefully w/o everybody's panties ending up bunched up over their heads, is no small test of...............a lot of stuff! Self respect & respect of others for one. I must agree that most of the membership here, has the right............"Stuff"!
1.Fuel octane grade/ friend or foe?
2. Synthetic fluids/ especially in a higher mileage engine.
3.Thermostat choice, 160/180/195F?
4. Timing advance further than stock 10 BTDC
More?
Handling these issues (and others, upon request) gracefully w/o everybody's panties ending up bunched up over their heads, is no small test of...............a lot of stuff! Self respect & respect of others for one. I must agree that most of the membership here, has the right............"Stuff"!
#27
Senior Member
Join Date: Jul 2008
Location: Long Beach Calimexifornia
Posts: 58,557
Received 1,162 Likes
on
647 Posts
O.K!.............. Battle stations! This is not a Drill!!
Closed Loop Function (& you)
When the EEC reaches a point where it is satisfied with all monitored parameters, it will transition to closed loop operation. In this mode the EEC tries to control air/fuel mixture to the stoichiometric ratio of 14.7:1 and accomplishes this by adjusting injector pulse width with feedback from the O2 sensors to control to the 14.7:1 ratio. In graphing the parameters of over 1,000 data samples during closed loop operation, the EEC did not go into closed loop at a temperature less than 170°F. When temperature gets to 190°F, the EEC pulls 2° of timing, so a 180°F thermostat is probably the best performance choice.
This test was performed Via 'Tweecer" using an "A9L" ECU (ECU flavor of choice for EFI/MAP to SEFI/MAF conversions!) Personally, I run & endorse 180F'''s for all around driving w/ maximum advance w/o ping, or having to resort to higher than 87 octane. For me, that's 16 BTDC.
However, for mostly short trip drivers, that continually have to recover norm op. temp., a 195F is the way to go. Returning to that temp., as soon as possible. So, in my opinion, choice is not "set in stone" and will vary dependant of other factors. dr_bowtie say's he's "just Ducky" w/ a 160F. But while my engine seems to like 160F's, My MPG takes a hit! I continually monitor my MPG's, pretty much ignoreing my gas guage, relying on odometer readings. (also because Ford senders a predictably unreliable)
Oh yea, one more thing! I run Synthetic "Everything" in my 23 year old "bundle of joy"! & recommend the same for all. If you have a leak? Fix em!
That's everything on my abbreviated list in my previous post. Heaven forbid, I mention "Synthetic Oil Stabilizer" or "Pure Acetone" as a fuel additive! (the mothers of all discourse!) I've seen threads on the latter topics run for 6 pages plus w/o a truce. But not so much on this Forum as was pointed out. Everybody's pretty amiable to agreeing to disagree on topics that are hard to back up w/ more than personal experiences.
Closed Loop Function (& you)
When the EEC reaches a point where it is satisfied with all monitored parameters, it will transition to closed loop operation. In this mode the EEC tries to control air/fuel mixture to the stoichiometric ratio of 14.7:1 and accomplishes this by adjusting injector pulse width with feedback from the O2 sensors to control to the 14.7:1 ratio. In graphing the parameters of over 1,000 data samples during closed loop operation, the EEC did not go into closed loop at a temperature less than 170°F. When temperature gets to 190°F, the EEC pulls 2° of timing, so a 180°F thermostat is probably the best performance choice.
This test was performed Via 'Tweecer" using an "A9L" ECU (ECU flavor of choice for EFI/MAP to SEFI/MAF conversions!) Personally, I run & endorse 180F'''s for all around driving w/ maximum advance w/o ping, or having to resort to higher than 87 octane. For me, that's 16 BTDC.
However, for mostly short trip drivers, that continually have to recover norm op. temp., a 195F is the way to go. Returning to that temp., as soon as possible. So, in my opinion, choice is not "set in stone" and will vary dependant of other factors. dr_bowtie say's he's "just Ducky" w/ a 160F. But while my engine seems to like 160F's, My MPG takes a hit! I continually monitor my MPG's, pretty much ignoreing my gas guage, relying on odometer readings. (also because Ford senders a predictably unreliable)
Oh yea, one more thing! I run Synthetic "Everything" in my 23 year old "bundle of joy"! & recommend the same for all. If you have a leak? Fix em!
That's everything on my abbreviated list in my previous post. Heaven forbid, I mention "Synthetic Oil Stabilizer" or "Pure Acetone" as a fuel additive! (the mothers of all discourse!) I've seen threads on the latter topics run for 6 pages plus w/o a truce. But not so much on this Forum as was pointed out. Everybody's pretty amiable to agreeing to disagree on topics that are hard to back up w/ more than personal experiences.
Last edited by ymeski56; 06-12-2010 at 01:16 PM.