True Timing

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carsey

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	Re: True Timing « Reply #15 on: July 19, 2014, 04:46:18 PM »

No true logs at the moment after I re-gapped plugs. Thats the plan for this weekend and add the finishing touches to my boost map and then look at timing.


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	Re: True Timing « Reply #16 on: July 20, 2014, 03:01:11 AM »

Quote from: carsey on July 19, 2014, 04:21:22 PM

JUst downloaded the latest one there.... Pretty handy!

Looks like I can have a touch more advance, as well as looking at knock logs, if the 0.6ms theory is correct Tongue

How do you come up with that conclusion?
You got 0.5m/s and you wont to be at 0.6m/s bc it is the most optimal?
IE: If i look at my true timing logs, I am at 1.1m/s at highest load and taper to 0.6m/s at redline.
I am tuned for e70.
How do you interpret that?
How do i come with optimal results for Ethanol?
Thanx!!!


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phila_dot

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	Re: True Timing « Reply #17 on: July 20, 2014, 08:02:31 AM »

Flame speed


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turdburglar44

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	Re: « Reply #18 on: July 20, 2014, 09:13:42 AM »

I think understanding the math and physics of timing is important. But I personally would never tune timing from a desk. I might make a guess but IMO you need to measure power and check your knock correction to dial in timing. ESPECIALLY when ethanol is involved. You can go past MBT without seeing any knock in some cases.


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Tuning is the easy part...

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	Re: True Timing « Reply #19 on: July 20, 2014, 09:24:54 AM »

Quote from: phila_dot on July 20, 2014, 08:02:31 AM

Flame speed

So if he would increase timing at certain rpm, it would increase flame speed. Off course:)


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	Re: « Reply #20 on: July 20, 2014, 09:27:14 AM »

Quote from: turdburglar44 on July 20, 2014, 09:13:42 AM

Sure, but there are no knocks on e85.
Tuning it to perfection on the street is very difficult.
This method helps a bit, I believe.


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phila_dot

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	Re: True Timing « Reply #21 on: July 20, 2014, 10:44:10 AM »

Quote from: Mocke on July 20, 2014, 09:24:54 AM

So if he would increase timing at certain rpm, it would increase flame speed. Off course:)

The calculation is heavily dependant on flame speed which will be completely different with different fuel.

As tb44 said, this is more of a sanity check than anything. It's just another angle to analyze your data.


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	Re: True Timing « Reply #22 on: July 20, 2014, 10:48:39 AM »

Quote from: phila_dot on July 20, 2014, 10:44:10 AM

I believe that.
Can any of you great minds do some calculations on e85?
Would be great to have that info as well.


« Last Edit: July 20, 2014, 02:12:19 PM by Mocke »	Logged

carsey

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	Re: True Timing « Reply #23 on: July 20, 2014, 02:29:18 PM »

Come across this. Any use to you?


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	Re: True Timing « Reply #24 on: July 21, 2014, 11:09:24 AM »

Quote from: carsey on July 20, 2014, 02:29:18 PM

Come across this. Any use to you?

Course it does, every info is good

Thanx mate!!


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