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carsey
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« Reply #15 on: September 13, 2014, 11:17:54 AM »
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Used the following TVUB aswell.
8v - 2.7
10v - 1.54
12v - 1.12
14v - .73
16v - .523
Would it be worth upping them a little? I used the bosch 550cc data for this.
Infact, they look the same for the 650s aswell.
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Divune
Jr. Member
Karma: +0/-0
 Offline
Posts: 43
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« Reply #16 on: September 13, 2014, 11:58:59 AM »
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I am running the 298s with TVUB of
4.09
1.58
1.02
0.65
0.45
still need to dial it in, have ~2 idle trims.
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fknbrkn
Hero Member
Karma: +186/-24
Offline
Posts: 1455
mk4 1.8T AUM
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« Reply #17 on: September 13, 2014, 05:41:54 PM »
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Used the following TVUB aswell.
8v - 2.7
10v - 1.54
12v - 1.12
14v - .73
16v - .523
Would it be worth upping them a little? I used the bosch 550cc data for this.
Infact, they look the same for the 650s aswell.
im using the same 298s @3bar and tvub values KRKTE = 0.05450 NOLRA = 6 FKKVS = flat 1 |
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fknbrkn
Hero Member
Karma: +186/-24
Offline
Posts: 1455
mk4 1.8T AUM
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« Reply #18 on: September 13, 2014, 05:50:17 PM »
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^ that file without axes sorry
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carsey
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« Reply #19 on: September 14, 2014, 09:56:27 AM »
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36mins data logging and got the following result. - attached
Hopefully should be about right now
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ddillenger
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« Reply #20 on: September 14, 2014, 10:01:08 AM »
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Looks like you should probably just scale KRKTE up so that FKKVS is a little flatter midrange and only compensating at the high/low pulsewidths.
I imagine you have adjusted KRKTE from the theoretical value based on fuel trims?
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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carsey
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« Reply #21 on: September 14, 2014, 10:26:59 AM »
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KRKTE is 0.05378.
My engine is 1825cc now with a 1mm overbore.
50.2624 * (1825/4) / (610*0.684)
50.2624 * 0.45625 / 417.24 = 0.05496
(I made it a touch richer as was still getting add of roughly 10-11% on the fuel trims.
Stock KFKHFM aswell. Not sure what effect that would have on it.
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ddillenger
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« Reply #22 on: September 14, 2014, 10:42:16 AM »
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KRKTE is 0.05378.
My engine is 1825cc now with a 1mm overbore.
50.2624 * (1825/4) / (610*0.684)
50.2624 * 0.45625 / 417.24 = 0.05496
(I made it a touch richer as was still getting add of roughly 10-11% on the fuel trims.
Stock KFKHFM aswell. Not sure what effect that would have on it.
Yeah, I can see that it's still a bit lean from your FKKVS. Give it a shot anyway, interesting to see the results. |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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carsey
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« Reply #23 on: September 14, 2014, 10:44:08 AM »
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Will get the map copied over onto my netbook and set NOLRA back to standard 4 and go for a bit drive sometime and see what the trims are like. Ill be happy with anything up to +/-10% tbh.
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phila_dot
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« Reply #24 on: September 14, 2014, 11:52:56 AM »
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There is no way that you should see that much variance among pulsewidth.
You will be correcting error under the wrong conditions.
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carsey
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« Reply #25 on: September 14, 2014, 12:05:46 PM »
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Where do you suggest im going wrong? Ive got my krkte as set above, and TVUB. only other thing is temin?
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phila_dot
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« Reply #26 on: September 14, 2014, 02:59:10 PM »
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How did you arrive at your KRKTE and TVUB?
Are you relying completely on calculations?
Tune them until your fueling is perfect in almost all conditons, then correct the remaining errors as necessary.
FKKVS is for correction in injection. You will chase your tail if you use any of the correction maps incorrectly because the correction will not always be applied under the right condition. A global correction is ok, but I can't imagine ever needing injection correction like you're showing.
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carsey
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« Reply #27 on: September 14, 2014, 04:24:53 PM »
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TVUB was got from the EV14 migration thread. I believe nyet posted the TVUB for different injectors and fuel pressures.
KRKTE was done using the calculations I listed above.
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carsey
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« Reply #28 on: September 16, 2014, 01:22:45 PM »
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Any ideas phila_dot?
Was going to flash and test FKKVS map tonight, but being comfortable got the better of me! haha
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carsey
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« Reply #29 on: September 20, 2014, 02:33:31 PM »
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About 75miles complete and got some half decent trims. Whether they alter much more as miles go on we'll have to see. Seems pretty much spot on to me. Well within tolerance and pulling fuel rather than add.
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