Re: my E-85 experience.
[Re: MR_P_BODY]
#1488401
08/26/13 01:02 PM
08/26/13 01:02 PM
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Joined: Jan 2004
Posts: 13,247 Mt. Vernon, Ohio
dartman366
OP
I Live Here
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OP
I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Quote:
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buy an A/F guage, put in an O2 sensor and forget about "guessing" what it wants
maybe santa claus is listening.
Forget the A/F meter on a race car... you know to tune for the fastest MPH... then if you want you can take a A/F reading... there is no magic number to tune to
If I were to do anything I think I would concider a pyrometer and tune by egt, but untill then I am going to tune by coolant temp rise and like you said,,MPH, if I were running the snot out of it every weekend then I may be more enclined to get into the o2 and A/F sensors and such, but that just not in the budget at this time. ![](/ubbthreads/images/graemlins/coffeetime.gif)
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: my E-85 experience.
[Re: dartman366]
#1488402
08/26/13 05:27 PM
08/26/13 05:27 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Quote:
Quote:
buy an A/F guage, put in an O2 sensor and forget about "guessing" what it wants
maybe santa claus is listening.
Forget the A/F meter on a race car... you know to tune for the fastest MPH... then if you want you can take a A/F reading... there is no magic number to tune to
If I were to do anything I think I would concider a pyrometer and tune by egt, but untill then I am going to tune by coolant temp rise and like you said,,MPH, if I were running the snot out of it every weekend then I may be more enclined to get into the o2 and A/F sensors and such, but that just not in the budget at this time.
Bill...when you get it tuned in for best MPH you will most likely see a 20 degree temp increase in the 1/4 ![](/ubbthreads/images/graemlins/wave.gif)
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Re: my E-85 experience.
[Re: ajcasini]
#1488404
08/26/13 05:42 PM
08/26/13 05:42 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Mr P most of the tuning i have done with an O2 watching H2O temp shows 8-12* to be the right tune. On the combos I have logged O2 on this puts lambda at .80-.82 which is where you want to be for a quick consistent tune.
What temp do you leave at... I think I was leaving a bit too cold... I should have been near 180-185 ![](/ubbthreads/images/graemlins/wave.gif)
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Re: my E-85 experience.
[Re: ajcasini]
#1488406
08/26/13 06:26 PM
08/26/13 06:26 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Most cars like 170. I have run mine as low 160 and high as 180 with no real performance change.
Normal runs in the heat of summer leave 170 go through a tick above 180. In the spring and call leave at 170 go through a tick below 180.
Thats why I said 20* increase... I was leaving at 160* and seen 180* at the end.. most of the E-85 guys I've talked with found that they made more power leaving at a 180* temp... some even at 185*... I never tried the higher temps myself but plan on trying it ![](/ubbthreads/images/graemlins/wave.gif)
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Re: my E-85 experience.
[Re: ajcasini]
#1488408
08/26/13 07:17 PM
08/26/13 07:17 PM
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Joined: Jan 2003
Posts: 6,266 Renton Washington
Triple Threat
master
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master
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Posts: 6,266
Renton Washington
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I'm usually doing my burnout without the fan off to bring it up to 165ish. I've never seen an increase in power running hotter or colder than that.
-Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA
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Re: my E-85 experience.
[Re: VernMotor]
#1488412
08/26/13 11:23 PM
08/26/13 11:23 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Been tuning cars by the seat of my pants for 30 years. works just fine
I have all of the fancy dandle stuff but I use it about 10% of the time... my A/F meter is used for cruise A/F only.. I tune the race car on the MPH... I never seen the need for it on the race car... I set the idle for where it idles best and WOT on the MPG ![](/ubbthreads/images/graemlins/wave.gif)
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