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Old Aug 17, 2011 | 12:48 PM
  #151  
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From: San Antonio
Originally Posted by raasfaas
Ok I need a little help diagnosing something here...I'm trying to help a friend of mine scale a set of PTE1200's on his IX but am having a little trouble. I started out with the scaling and latencies from this thread which seemed to be the most widely used out there for these injectors:
https://www.evolutionm.net/forums/8794310-post98.html
But the afr just swings full lean on his AEM WB.
I brought the global down a good deal to see if I could even get it to register on the gauge but it just keeps going full lean. The thing is though, when I log it in evoscan the STFT hover around -2% to +4% and the ltft low on the first cycle settled on -4.8% which means I'm kinda in the ballpark and should at least be idling at stoich.
Does this possibly look like a bad sensor?
im assuming he's on e85?
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Old Sep 9, 2011 | 10:13 PM
  #152  
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From: Mesa AZ
Deatschwerks 880cc Pump gas

Scaling: 750

Latency:
4.69, 3.624
7.03, 1.992
9.38, 1.344
11.72, 1.008
14.06, 0.768
16.41, 0.600
18.68, 0.480

Hope this helps.....

George
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Old Sep 10, 2011 | 10:21 AM
  #153  
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From: My House
Originally Posted by kiwiracer
Ok so if you going to e85 its approx 70 % of your injector size.... if you have a 2.3 stroker do you then possibly go another 15% due to displacement??
I too would like an answer to this as I have a 2.3 on E85. I have FIC 1450's and got some scalings from a friend with a 2.4 and his are much lower than the typical 1008 his are

860

2.784
2.448
1.608
1.200
1.008
0.912
0.816

I am going to try this with 900 for scaling and use his latencies
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Old Oct 6, 2011 | 11:49 AM
  #154  
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Question I have been following this thread for quite some time and been using this to help dial-in the injectors.

FIC 1450 93-octane

I'm stuck at the low trims so I tried :
Then you have to watch your fuel trims at idle, and cruising.. This is where your Injector Latency Voltage comes in.. If the trims at cruise are okay, then you adjust the lower voltage readings (below 13 volts) to increase the amount of fuel at idle slightly.
the latencies got worse so then I did:
If idle or cruise trim is positive, then you need to increase the latency value.

So here is some before readings :
MID TRIMS ARE perfect for me around -3 to -4. My low trims are what I am having a hard time with.

Scaling=1329
2.664
2.088
1.656
1.344
1.152
.960
.792

After 15mins my low trims are at 12.6512

Then I increased my latency value :
2.736
2.160
1.704
1.368
1.129
.936
.816

After fifteen minutes of driving my mid trims were 11.8668.



Any ideas on what I should try next?
Changing the scaling??


Mods:
stock evo 8 head/block
stock I/C piping
stock intake pipe
3" exhaust
GSC stg II cams
walbro 255
stock turbo
MBC
FIC1450

Last edited by NOMIEZVR4; Oct 6, 2011 at 11:52 AM.
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Old Oct 6, 2011 | 12:47 PM
  #155  
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From: Austin, Tx
Originally Posted by NOMIEZVR4
Question I have been following this thread for quite some time and been using this to help dial-in the injectors.

FIC 1450 93-octane

I'm stuck at the low trims so I tried :

the latencies got worse so then I did:



So here is some before readings :
MID TRIMS ARE perfect for me around -3 to -4. My low trims are what I am having a hard time with.

Scaling=1329
2.664
2.088
1.656
1.344
1.152
.960
.792

After 15mins my low trims are at 12.6512

Then I increased my latency value :
2.736
2.160
1.704
1.368
1.129
.936
.816

After fifteen minutes of driving my mid trims were 11.8668.



Any ideas on what I should try next?
Changing the scaling??


Mods:
stock evo 8 head/block
stock I/C piping
stock intake pipe
3" exhaust
GSC stg II cams
walbro 255
stock turbo
MBC
FIC1450
So leave latency where it is with the mids being out of whack, then change scaling and see what happens. If mids are 11 (high), then it's adding fuel, so decrease scaling, and you'll get more fuel overall...then adjust latency farther if lows still top out. That's how I did it at least. one, then other, then other, then other.

1300 scaling sounds like what I would start at if I had 1450 injectors....that's total guessing btw.

Last edited by HornstarBU; Oct 6, 2011 at 12:51 PM.
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Old Oct 7, 2011 | 05:27 AM
  #156  
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I do apologize, I meant to type my LOW trims were 11.8668.

HornstarBU
THANK YOU very much for the explanations and all the help! I was able to get my mid trims to -1 and my low with +5.
I will post my latency/scalings once I double check them.

Last edited by NOMIEZVR4; Oct 8, 2011 at 07:13 PM.
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Old Oct 26, 2011 | 04:21 PM
  #157  
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From: France
Hi,

what scaling and latency for FIC 1150cc , evo 8 2L

thanks
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Old Oct 27, 2011 | 07:40 AM
  #158  
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I don't get too crazy with the low trim. I got my cruise trim to be zero, actually -0.59, and my idle trim ended up being +7. I left it as is. I cruise a lot more than sitting idle.
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Old Oct 27, 2011 | 10:50 AM
  #159  
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From: Austin, Tx
Originally Posted by BigT
I don't get too crazy with the low trim. I got my cruise trim to be zero, actually -0.59, and my idle trim ended up being +7. I left it as is. I cruise a lot more than sitting idle.
And 7 is pretty reasonable, if it's solid there, still some room to adjust as needed. For my idle trim, I increase battery injector latency, and it makes a difference at idle way more than it does at cruise....hardly any difference at cruise to tell you the truth.
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Old Oct 31, 2011 | 01:58 AM
  #160  
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From: Moscow, Russia
guys, what values are you using for ID 1000 / FIC 1000 based on bosch ev14 for pump gas ?
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Old Oct 31, 2011 | 03:16 PM
  #161  
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Here is a question about resetting values. I have an Evo 8 and lets say my ltft is 10. I add some to the latencies to bring it down. Do I have to disconnect the battery after that? I know if I do it will reset it to 0 right away. I have noticed if I dont disconnect the battery the 10 will come down to what it is eventually. Im assuming it would be quicker to disconnect the battery than to wait. Is my thinking correct or am I going about this all wrong? I just dont like disconnecting battery because then I have to recalibrate my wideband again
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Old Oct 31, 2011 | 06:16 PM
  #162  
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From: ksa
i beed latency for 800cc
for my evo
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Old Oct 31, 2011 | 07:08 PM
  #163  
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From: Austin, Tx
Originally Posted by wizzo 8
Here is a question about resetting values. I have an Evo 8 and lets say my ltft is 10. I add some to the latencies to bring it down. Do I have to disconnect the battery after that? I know if I do it will reset it to 0 right away. I have noticed if I dont disconnect the battery the 10 will come down to what it is eventually. Im assuming it would be quicker to disconnect the battery than to wait. Is my thinking correct or am I going about this all wrong? I just dont like disconnecting battery because then I have to recalibrate my wideband again
Not only can you just change latency and not reset the ECU by removing the battery, if you REALLY want to speed things up, set your open loop thresholds to 0 or 5 or something low like that and you will see instantaneously what your AFR is. If it's 15.5, you know you're lean and need more fuel latency. That takes trims out of the game entirely, so you can see in real time what your scaling and latency are doing with respect to fuel (assuming you have a wideband, which you said you did)
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Old Dec 29, 2011 | 06:26 AM
  #164  
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I think this is the best place to ask this,
does anyone have scalings/latencies I can start with for FIC 1550 on pump or e85??

I'm on a 2.0l
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Old Jan 2, 2012 | 05:35 PM
  #165  
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One of injectors went bad so I got some FIC 1550cc injectors and was looking for a good base setting to go off of. Anyone??
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