Official / Injector Scaling and Latency Forum
Sep 5, 2012, 01:15 PM
#182
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with the cobb, under "base latency" should I be putting the 14v dead time? for instace im trying to setup some ev14 bosch 1000cc injectors on my evo x. im taking my ots AEM 91oct lwg map and only changing the injector values:
Fuel injector scaling=886
fuel injector base latency=.795
injector battery
Bat V - ms
7.92 - 2.475
8.94 - 1.83
9.97 - 1.575
11.95 - 1.14
14.08 - .795
16.06 - .615
18.11 - .375
This is based on the values included with my flow sheet with the injectors.
Fuel injector scaling=886
fuel injector base latency=.795
injector battery
Bat V - ms
7.92 - 2.475
8.94 - 1.83
9.97 - 1.575
11.95 - 1.14
14.08 - .795
16.06 - .615
18.11 - .375
This is based on the values included with my flow sheet with the injectors.
Oct 26, 2012, 12:50 AM
#183
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Hi
Anybody has values for Deatschwerks 1000 cc for e85 (or normal fuel). As I can't get to read my LTFT it's really hard to settle
I've found here some values but really not sure if I can take values from a X for my 8
https://www.evolutionm.net/forums/ev...dw-1000-a.html
Anybody has values for Deatschwerks 1000 cc for e85 (or normal fuel). As I can't get to read my LTFT it's really hard to settle
I've found here some values but really not sure if I can take values from a X for my 8
https://www.evolutionm.net/forums/ev...dw-1000-a.html
Last edited by sky_fr; Oct 26, 2012 at 01:38 AM.
Feb 21, 2013, 02:26 PM
#185
Need some help with my pte injectors
1000cc
Scaling - 886
4.69 - 3.720
7.03 - 2.088
9.38 - 1.440
14.06 - 0.840
16.41 - 0.672
18.68 - 0.552
Idle + 4.86
Cruise -2.15
edit - raised 14.06 to 0.864 and increase my timing in idle to 6 degress
idle = -0.36
cruise = - 2.15 (have not drove yet wil it be negative more or will it raise up in the positive area?)
Is this pretty good, the start up seems a little weird idling seems good
1000cc
Scaling - 886
4.69 - 3.720
7.03 - 2.088
9.38 - 1.440
14.06 - 0.840
16.41 - 0.672
18.68 - 0.552
Idle + 4.86
Cruise -2.15
edit - raised 14.06 to 0.864 and increase my timing in idle to 6 degress
idle = -0.36
cruise = - 2.15 (have not drove yet wil it be negative more or will it raise up in the positive area?)
Is this pretty good, the start up seems a little weird idling seems good
Last edited by steven121; Feb 21, 2013 at 02:52 PM.
Jun 17, 2013, 10:00 AM
#187
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Have an issue with Precision 1200s (or so my customer thinks. I think theyre a 1000cc set). They scale at 860 on pump with the recommended latency and come in at -1.0% mid, -0.5 low. I switched to e85 and im at 400 and still can't get mid trims below +20%. Anyone have issues with these injectors?
Sep 15, 2013, 02:05 PM
#188
Pretty noob question, but after installing injectors, do you have to adjust the "IPW while cranking" and all the before you can dial in the scalings and latencys? Or will the ecu calculate that for you given that your initial scaling and latency are somewhat close?
This is on gasoline by the way!
This is on gasoline by the way!
Sep 15, 2013, 03:22 PM
#189
Evolved Member
The ECU does not re-calculate cranking enrichment (or any other enrichments) if the injector scaling gets changed.
So, if you are using pump gasoline, expect to reduce the entire cranking IPW table.
The problem is when you are ethanol the cranking IPW requirements get a bit funky.
At normal operating temps it will need to be reduced a bit. But cold starts will need more fuel.
So, if you are using pump gasoline, expect to reduce the entire cranking IPW table.
The problem is when you are ethanol the cranking IPW requirements get a bit funky.
At normal operating temps it will need to be reduced a bit. But cold starts will need more fuel.
Sep 15, 2013, 03:47 PM
#190
The ECU does not re-calculate cranking enrichment (or any other enrichments) if the injector scaling gets changed.
So, if you are using pump gasoline, expect to reduce the entire cranking IPW table.
The problem is when you are ethanol the cranking IPW requirements get a bit funky.
At normal operating temps it will need to be reduced a bit. But cold starts will need more fuel.
So, if you are using pump gasoline, expect to reduce the entire cranking IPW table.
The problem is when you are ethanol the cranking IPW requirements get a bit funky.
At normal operating temps it will need to be reduced a bit. But cold starts will need more fuel.
Sep 18, 2013, 05:24 AM
#191
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got a question here....ive tuned my map with the new id1300s and am in the process of messing with the fuel trims and got them pretty good imo. theyre at low/-1.75 mid/-0.39 but my wideband reads bang on 14.2 on cruise??? idle is fine at 14.5-15.0....what to do? get cruise trim in the + untill it reads 14.7?
Sep 22, 2013, 07:49 AM
#192
My 1650's were not as hard to get dialed in as everybody makes them seem. Maybe I just got lucky? 
..I started out with the 1550's latencies posted on here and just went from there, it was a pretty good starting point and had it running it was just really rich. 
Anyways, my car liked the scaling at 1539 on pump and 1170 on E85
Latencies:
4.69 3.312
7.03 1.752
9.38 1.560
11.72 1.344
14.06 1.176
16.41 0.984
18.68 0.672
I never had to adjust my IPW's at all, and the UEGO is reading almost dead on to what the targets are in my fuel map, within .1-.3 for the most part of a 3rd gear pull.
..I started out with the 1550's latencies posted on here and just went from there, it was a pretty good starting point and had it running it was just really rich. Anyways, my car liked the scaling at 1539 on pump and 1170 on E85
Latencies:
4.69 3.312
7.03 1.752
9.38 1.560
11.72 1.344
14.06 1.176
16.41 0.984
18.68 0.672
I never had to adjust my IPW's at all, and the UEGO is reading almost dead on to what the targets are in my fuel map, within .1-.3 for the most part of a 3rd gear pull.
Last edited by jspecteggy; Sep 22, 2013 at 07:52 AM.
Oct 4, 2013, 11:52 AM
#193
Here's scaling and latency's for FIC 1450's on a 2.3 using speed density. Idle and cruise are both within +/- 5%.
I tried a few more settings and after a bit, came to settle on this. Adjusting the volts scaling in the latency table allowed for finer points of adjustment.
I tried a few more settings and after a bit, came to settle on this. Adjusting the volts scaling in the latency table allowed for finer points of adjustment.
Last edited by Tuxevo; Dec 6, 2013 at 08:22 PM.
Jan 24, 2014, 07:48 AM
#195
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FIC 1150 latency issues, any insight would be great. My idle is rough and stumbly, but drives decent.
Anyone have some values I can input?or try. I really need to get this thing dialed in. Having no car sucks.
Fp red
fic 1150
Speed density
255lph pump
Fmic
Full pipe
buschur exhaust
STUMPED
Anyone have some values I can input?or try. I really need to get this thing dialed in. Having no car sucks.
Fp red
fic 1150
Speed density
255lph pump
Fmic
Full pipe
buschur exhaust
STUMPED
Last edited by Evosparxx; Jan 24, 2014 at 07:53 AM.