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Author Topic: KFZW & KFZW2 on med 9.1  (Read 802 times)
birchbark506
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« on: May 06, 2018, 06:02:32 AM »

I am trying to get my knock down I used map KFZW & KFZW2 to pull timing, and I'm not having any luck here are 2 logs but I will get 2 logs of just ingnion
« Last Edit: May 06, 2018, 01:35:03 PM by birchbark506 » Logged
NBR
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« Reply #1 on: May 08, 2018, 09:08:17 AM »

KFZWMN? I believe KFZWMN is at 15 degrees at redline on the MED9.1, so even if you make KFZW lower it won't go below KFZWMN
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birchbark506
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« Reply #2 on: May 08, 2018, 10:27:56 AM »

KFZWMN is all stock other then for overrun at the top two low loads
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birchbark506
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« Reply #3 on: May 08, 2018, 01:41:46 PM »

is there so much to pull off the stock timing for 91 octane fuel?
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birchbark506
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« Reply #4 on: May 16, 2018, 06:43:43 AM »

here is my file logs with stock KFZW & KFZW2 how would i lower the -5 in the higher RPM
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NBR
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« Reply #5 on: May 17, 2018, 04:18:13 PM »

The 2nd logs look better, although your AFR is very rich and your boost control seems to be oscillating. As for the timing, Look at your logs, and take note of the corresponding RPM and engine load values (these are the x and y axis on your KFZW maps). Go to KFZW and KFZW2 and make the changes you want to decrease the timing by how much you want, Then go to KFZWMN and make sure the values there are lower than the corresponding values in your KFZW maps, or else the timing will not decrease the way you want it to.
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birchbark506
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« Reply #6 on: May 17, 2018, 05:42:11 PM »

What do you mean by boost control seems to be oscillating? As in bounching up and down. And I think that is where I was going wrong with KFZW & KFZW2  I don't think I made it lower then KFZW in in KFZWMN
How can I lower AFR? Take fuel away to make leaner?
I do see that when it goes rich my injectors are very high 9ms.

 By decreasing that is subtract, just double checking
« Last Edit: May 17, 2018, 05:48:44 PM by birchbark506 » Logged
nyet
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« Reply #7 on: May 18, 2018, 04:14:57 PM »

What do you mean by boost control seems to be oscillating? As in bounching up and down. And I think that is where I was going wrong with KFZW & KFZW2  I don't think I made it lower then KFZW in in KFZWMN

What does boost control have to do with timing?

Quote
How can I lower AFR? Take fuel away to make leaner?
I do see that when it goes rich my injectors are very high 9ms.

 By decreasing that is subtract, just double checking

What does AFR stand for? Lower means... what?

I think you need to step away from the car until you have a better handle on basics.
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ME7.1 tuning guide (READ FIRST)
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birchbark506
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« Reply #8 on: May 18, 2018, 06:36:24 PM »

i meant the lambda control when it hits 25% arpund 4700 rpm
i did more logs
« Last Edit: May 18, 2018, 06:42:07 PM by birchbark506 » Logged
NBR
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« Reply #9 on: May 21, 2018, 05:44:17 PM »

I agree with nyet on this, you need to do some more reading on engine basics and tuning in general before trying to mess with stuff. Initially i thought you just forgot about KFZWMN.
For oscillating, yes I mean its bouncing up and down. For AFR, go read up about AFR and how the Lambda value you are logging relates to it. As for changing the maps for load, timing and AFR, go and read the S4 Wiki well, the maps are for ME7 but still apply to MED9.1 and you can figure out the differences and extra maps using the FR. There's also a thread call MED9.1 Basics on this forum that has loads of info on your ECU.
Once you've got a grasp on all of the info out there, you will have a clear idea of what you want to set the values at in your ECU and how to change them before you even start editing your file.

At least you know logging is important, good luck!
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