Power FC WARNING: Negative split in "tuned" maps
01-30-03, 08:59 PM
#26
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Originally posted by cewrx7r1
I have only DATALOGIT and dyno tuned up to 14PSI above 6000 rpm and 15.5PSI in the mid range around 4500 rpm. That was with a Halman manual boost controller. Rows P19 and R20 have not been run yet.
You going to run more boost later, Chuck?
I just installed a Blitz and will soon be going for higher boost. But first; I will be moving my air temp sender to the Greddy elbo or IC outlet.
Smart
...
The MAP sensor could be bad, you running the 3 bar yet? Great excuse to get one
An example of what I am trying to do:
If most of the equipment says boost is 12 psi, and the PFC says less, such that it's selected row/rows are lower
then they should be: like abs pressure of 17500 instead of 18000; then I will replace the 18000 P row pressure value with 17500. This will cause the PFC to pick a higher row or interporlation where it should have been in the first place.
Chuck, you remember that the PFC is one row behind, right? Weren't you the one that picked up on that to begin with?
But since the DATALOGIT provides this data, I have to see what it also says when I have 12psi. It might also be off. Maybe I will have 12AM and Blitz;11PFC; and 11.5DAT.
This might seem extreme, but it keeps me busy and from being bored.
I have only DATALOGIT and dyno tuned up to 14PSI above 6000 rpm and 15.5PSI in the mid range around 4500 rpm. That was with a Halman manual boost controller. Rows P19 and R20 have not been run yet.
You going to run more boost later, Chuck?
I just installed a Blitz and will soon be going for higher boost. But first; I will be moving my air temp sender to the Greddy elbo or IC outlet.
Smart
...
The MAP sensor could be bad, you running the 3 bar yet? Great excuse to get one
An example of what I am trying to do:
If most of the equipment says boost is 12 psi, and the PFC says less, such that it's selected row/rows are lower
then they should be: like abs pressure of 17500 instead of 18000; then I will replace the 18000 P row pressure value with 17500. This will cause the PFC to pick a higher row or interporlation where it should have been in the first place.
Chuck, you remember that the PFC is one row behind, right? Weren't you the one that picked up on that to begin with?
But since the DATALOGIT provides this data, I have to see what it also says when I have 12psi. It might also be off. Maybe I will have 12AM and Blitz;11PFC; and 11.5DAT.
This might seem extreme, but it keeps me busy and from being bored.
Never stop modding, never stop tweakin'!
Last edited by Badog; 01-30-03 at 09:01 PM.
01-30-03, 09:23 PM
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Correct, and having negative trailing timing isn't bad...but the guy who originally posted had the "show split" box checked. Kinda confusing at first glance if you're not familiar with it.
01-30-03, 09:35 PM
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Originally posted by Badog
No you're not. Not at that link you're not. You're just comparing Fuel, IGL, and IGT between disparate maps.
Take the (IGL - IGT).
No you're not. Not at that link you're not. You're just comparing Fuel, IGL, and IGT between disparate maps.
Take the (IGL - IGT).
(just givin ya ****)
01-30-03, 09:42 PM
#31
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I might try going to 16 on my lightly modified non-seq
Mazda turbos. I have had it at 16 temporarily with out any problems. My current AFRs are 11.7 for 12psi and 11.5 for 14psi. Will drop it to about 11.3 for 16. My Blitz FMIC really cools the charge down, even in summer. My cooling fans are set to come on at 86C and 90C.
Mazda turbos. I have had it at 16 temporarily with out any problems. My current AFRs are 11.7 for 12psi and 11.5 for 14psi. Will drop it to about 11.3 for 16. My Blitz FMIC really cools the charge down, even in summer. My cooling fans are set to come on at 86C and 90C.
01-30-03, 11:36 PM
#32
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Originally posted by Marshall
Correct, and having negative trailing timing isn't bad...but the guy who originally posted had the "show split" box checked. Kinda confusing at first glance if you're not familiar with it.
Correct, and having negative trailing timing isn't bad...but the guy who originally posted had the "show split" box checked. Kinda confusing at first glance if you're not familiar with it.
Last edited by SleepR1; 01-30-03 at 11:41 PM.
01-31-03, 08:44 AM
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Originally posted by skotx
Go to that site and click on a map. Now scroll all the way down to the bottom. You don't see a split table? If you're going to start billing yourself as a web surfer, you're going to have to start doing some clicking.
(just givin ya ****)
Go to that site and click on a map. Now scroll all the way down to the bottom. You don't see a split table? If you're going to start billing yourself as a web surfer, you're going to have to start doing some clicking.
(just givin ya ****)
Now I see a split table. I'll swear up and down sideways I didn't see it before!
Last edited by Badog; 01-31-03 at 08:47 AM.
01-31-03, 08:49 AM
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Originally posted by SleepR1
My maps were pre-loaded by my engine builder. Kyle found four negative splits at P04,N18 and P06, N16. Rarely hit cells, both in vacuum, but nevertheless perked Kyle's attention. I have a street-ported motor, and was told by the engine builder that the trailing ignition would be retarded, and the timing split? Other mods include Greddy 2-row FMIC, Greddy Airinx intake, 1300-cc secondaries, ND comp fuel pump, downpipe, high-flow cat, RB dual tip catback. The AFRs were set to 11.7 @ 0.80 bar and 11.9 @ 0.70 bar. The boost portion of the map is conservative with split under boost primarily being >10 degrees. These have NOT been wide-band verified. I plan to have the break-in miles completed by next weekend, so perhaps Kyle can check these with his wide-band?
My maps were pre-loaded by my engine builder. Kyle found four negative splits at P04,N18 and P06, N16. Rarely hit cells, both in vacuum, but nevertheless perked Kyle's attention. I have a street-ported motor, and was told by the engine builder that the trailing ignition would be retarded, and the timing split? Other mods include Greddy 2-row FMIC, Greddy Airinx intake, 1300-cc secondaries, ND comp fuel pump, downpipe, high-flow cat, RB dual tip catback. The AFRs were set to 11.7 @ 0.80 bar and 11.9 @ 0.70 bar. The boost portion of the map is conservative with split under boost primarily being >10 degrees. These have NOT been wide-band verified. I plan to have the break-in miles completed by next weekend, so perhaps Kyle can check these with his wide-band?
And I hope you got logs from KDR.
01-31-03, 04:06 PM
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Originally posted by SleepR1
The AFRs were set to 11.7 @ 0.80 bar and 11.9 @ 0.70 bar.
The AFRs were set to 11.7 @ 0.80 bar and 11.9 @ 0.70 bar.
Originally posted by Badog
If Kyle is going to the trouble of hooking everything up, why don't you have him tune the car then, Manny? It's alot of work for just a check.
And I hope you got logs from KDR.
If Kyle is going to the trouble of hooking everything up, why don't you have him tune the car then, Manny? It's alot of work for just a check.
And I hope you got logs from KDR.
Manny, I vote you PM or email Tony to arrange a meet and "tweak and tune" session with him when you are in town.
K
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