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Old 07-10-2008, 08:17 AM   #61 (permalink)
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Quote: Originally Posted by Nick Fury View Post
Added 2 more pages:

Power Enrichment Above Stoich FA Ratio - SCT SRT Wiki
Stoich FA Ratio - SCT SRT Wiki
(feel free to fix these if they are wrong)

I also created a new calculator to aid in editing the Power Enrichment over Stoich page:

Target AFR Calculator


Lets get some more pages and info in this thing!

We could use:

A Basic WOT tuning page
Scaling for a 3bar MAP



Thanks Sour Kraut for fixing the Gear Dependent Boost page!


correct me if i'm wrong in the power enrichement you said that the Y axis is in bar... if i'm correct this axis is unit less it's a ratio (like the name says)

it's map pressure/barometric pressure

so can be in what ever unit you want

example engine stop gage pointing 0

map (14.X) psi / barometric pressure (14.x)psi =1


at 14.x psi


map (14.x+baro)/baro(14.x)=2
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Last edited by moreause : 07-10-2008 at 08:20 AM.
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Old 07-10-2008, 09:17 AM   #62 (permalink)
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Quote: Originally Posted by Mana4real View Post
I just figured out a really easy way to figure out what cell is what on the boost by gear table. I played with my datalogger a lot tonight and found out a bunch of useful tools. I can figure it out pretty damn easy and then post up my results. It will be this weekend though before I have more time to play.

whick datalogger are you using to do this?
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Old 07-10-2008, 09:33 AM   #63 (permalink)
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Quote: Originally Posted by Mana4real View Post
I just figured out a really easy way to figure out what cell is what on the boost by gear table. I played with my datalogger a lot tonight and found out a bunch of useful tools. I can figure it out pretty damn easy and then post up my results. It will be this weekend though before I have more time to play.

Just FYI, I played with this last night and apparently it is working!

I believe I have confirmed what Dave at SCT told me though I still need to do more testing to be 100% sure.

Cell 10 = First Gear
Cell 8 = Second Gear
Cell 7 = Third Gear
Cell 6 = Fourth Gear
Cell 5 = Fifth Gear

I'm going to do some more playing around tonight to confirm those results!

Mana, let us know what you find!
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Old 07-10-2008, 09:38 AM   #64 (permalink)
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Quote: Originally Posted by moreause View Post
correct me if i'm wrong in the power enrichement you said that the Y axis is in bar... if i'm correct this axis is unit less it's a ratio (like the name says)

it's map pressure/barometric pressure

so can be in what ever unit you want

example engine stop gage pointing 0

map (14.X) psi / barometric pressure (14.x)psi =1


at 14.x psi


map (14.x+baro)/baro(14.x)=2

That's correct. It should be changed.
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Old 07-10-2008, 10:00 AM   #65 (permalink)
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Feel free to change it

Edit: NM Nick Chestnut already did, thanks Nick!!
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Old 07-10-2008, 10:04 AM   #66 (permalink)
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Quote: Originally Posted by sour kraut View Post
whick datalogger are you using to do this?

Auto enginuity... Going to use the standard part of it, not expanded and run the MPH, RPM, Barometeric pressure, and record. This should give you a pretty accurate idea of where everything is. Look for huge changes in barometric pressure at different speeds/rpm when you look at the excel file and it should be pretty easy to locate the cells
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Old 07-10-2008, 10:09 AM   #67 (permalink)
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Quote: Originally Posted by Nick Chestnut View Post
Just FYI, I played with this last night and apparently it is working!

I believe I have confirmed what Dave at SCT told me though I still need to do more testing to be 100% sure.

Cell 10 = First Gear
Cell 8 = Second Gear
Cell 7 = Third Gear
Cell 6 = Fourth Gear
Cell 5 = Fifth Gear

I'm going to do some more playing around tonight to confirm those results!

Mana, let us know what you find!

That's not what I was thinking... I will let you guys know when I try it out this weekend.
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Old 07-10-2008, 10:10 AM   #68 (permalink)
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Quote: Originally Posted by Mana4real View Post
Auto enginuity... Going to use the standard part of it, not expanded and run the MPH, RPM, Barometeric pressure, and record. This should give you a pretty accurate idea of where everything is. Look for huge changes in barometric pressure at different speeds/rpm when you look at the excel file and it should be pretty easy to locate the cells

That's pretty much what I was going to do in the next few days if we can ever get this damn sr20det swap done!! 99% of the time I use the general logger. I hate the extended datalogging but it's come in handy a few times.
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Old 07-10-2008, 10:18 AM   #69 (permalink)
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Quote: Originally Posted by sour kraut View Post
That's pretty much what I was going to do in the next few days if we can ever get this damn sr20det swap done!! 99% of the time I use the general logger. I hate the extended datalogging but it's come in handy a few times.

The only thing you can really use the extended for is knock retard. Plus it's a lot slower then the standard.
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Old 07-10-2008, 10:27 AM   #70 (permalink)
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Quote: Originally Posted by Mana4real View Post
The only thing you can really use the extended for is knock retard. Plus it's a lot slower then the standard.

I used it to do my ve table. I probably could of used the general, but I wanted the actual fuel mass. It is slow, but it works.
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Old 07-11-2008, 01:00 AM   #71 (permalink)
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Added knock based torque reduction.

Will add more tomorrow!
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Old 07-11-2008, 08:34 AM   #72 (permalink)
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Quote: Originally Posted by Nick Fury View Post
Added 2 more pages:

Power Enrichment Above Stoich FA Ratio - SCT SRT Wiki
Stoich FA Ratio - SCT SRT Wiki
(feel free to fix these if they are wrong)

I also created a new calculator to aid in editing the Power Enrichment over Stoich page:

Target AFR Calculator


Lets get some more pages and info in this thing!

We could use:

A Basic WOT tuning page
Scaling for a 3bar MAP



Thanks Sour Kraut for fixing the Gear Dependent Boost page!

Good stuff as always.

Minor correction. In the power enrichment above stoich FA Ratio wiki and in the stoich FA ratio wiki, you have stated:

Quote:
Notes:
F/A differs from A/F, but has the same result in the end. Your F/A ratio can be determined by dividing your A/F by 1.

Example:
Stoich AFR to FA: 1/14.7 = 0.0680
Target AFR = 1/11.2 = 0.0892

But it should read "Your F/A ratio can be determined by dividing 1 by your A/F ." assuming the actual formula is right (i'm assuming because f/a divided by 1 is still f/a.

Keep up the good work guys!

-Bob
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Old 07-11-2008, 09:41 AM   #73 (permalink)
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Quote: Originally Posted by a853rox View Post
Good stuff as always.

Minor correction. In the power enrichment above stoich FA Ratio wiki and in the stoich FA ratio wiki, you have stated:



But it should read "Your F/A ratio can be determined by dividing 1 by your A/F ." assuming the actual formula is right (i'm assuming because f/a divided by 1 is still f/a.

Keep up the good work guys!

-Bob

Good catch!
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Old 07-11-2008, 10:34 AM   #74 (permalink)
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Quote: Originally Posted by a853rox View Post
But it should read "Your F/A ratio can be determined by dividing 1 by your A/F ." assuming the actual formula is right (i'm assuming because f/a divided by 1 is still f/a.

Keep up the good work guys!

-Bob

you could really confuse people by telling them, "Your F/A ratio can be determined by taking the inverse of your A/F", but the software is confusing enough.
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Old 07-11-2008, 12:38 PM   #75 (permalink)
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Quote: Originally Posted by sour kraut View Post
you could really confuse people by telling them, "Your F/A ratio can be determined by taking the inverse of your A/F", but the software is confusing enough.

That's just mean. Anyone that isn't a math person would just sit there and
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