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Injector Scaling and Latency (SUPERMERGE)

 
Old Feb 3, 2010, 11:47 PM
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W2J,
scaling try 622 or 636.
latency, try 3.768, 2.136, 1.488, 1.128, 0.888, 0.720, 0.600
and let us know how you go.
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Old Feb 4, 2010, 05:58 PM
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Originally Posted by merlin.oz View Post
blkVII, which injectors do you wish to use, and presumably on a 9?
Hey merlin,

most likely going with either the PTE 880s or the 1000s...
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Old Feb 4, 2010, 08:48 PM
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Originally Posted by merlin.oz View Post
W2J,
scaling try 622 or 636.
latency, try 3.768, 2.136, 1.488, 1.128, 0.888, 0.720, 0.600
and let us know how you go.

I will bro once I the car come back to Trini!!
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Old Feb 9, 2010, 05:40 PM
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ahh yeah someone might want to add that if u have a JDM rom where the original ROM had 542 scaling for the stock injector you will need to increase the injector size. eg the FIC 1050s instead of 1008 need to be 1083. basically by two steps.
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Old Feb 9, 2010, 05:41 PM
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Originally Posted by blkVII View Post
Hey merlin,

most likely going with either the PTE 880s or the 1000s...
i have a set of 880's for sale...
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Old Feb 9, 2010, 06:58 PM
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Originally Posted by project_skyline View Post
Scaling will vary with different fuels. But if your stuff is the equivalent of what is over here aka 91-93 octane you shouldn't have to mess with it much if at all.
Scaling varies with differences in specific gravity and overall density.

I.e.- Ethanol is 70% the weight of Gasoline and oddly enough requires 30% more fuel
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Old Feb 9, 2010, 07:04 PM
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Originally Posted by bigric09 View Post
everything i have read has shown bad experiences using those. Id think that with all of the knowledge we have here like JB and pals, we should be able to handle it. I havent given them a go yet.... im sure ill get to what i need to do. Just looking for a ballpark starting point
Base rule of thumb on any car with MAF (or SD really) is Scaling is 85% of value of injector size on gasoline. Latency is a rough estimate based on the manufacturer listed values.

FIC2150/ID2000 work with the latency provided as is.

1650s I would be something like-

Scaling- 1350-1400

Latency-

11v- 1.11 to 1.28
14v- 0.83 to 0.94

No STFT, tune in open loop by the wideband, live with odd looking fuel map and some inconsistencies. Add the EZtune and it all needs redone off the high voltage part of the latency.

No easy answers when you start playing with the big stuff. Gasoline will be tougher, E85 makes it easier.

Aaron
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Old Feb 10, 2010, 05:55 AM
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Thanks JB, after i saw you posted on this thread, i was about to send you a PM, but you answered everything I needed to ask. I as well as im sure everyone else truly appreciate your contributions to the community
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Old Feb 22, 2010, 09:50 PM
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Thumbs up

love this thread.. now i got a quick question, anyone here would know what numbers i would run with if i have a 02 lancer oz 2.0 turboed, and i'm running a evo 8 ecu on it, i dont want to start the car yet till i get this fuel stuff figured out on this ecu.. i am runnig wrx 440 cc injectors, and a walboro 255 fuel pump. anything would help.. good work guys!
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Old Feb 25, 2010, 04:28 PM
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EVO 8
E85
FIC 1050-single walboro

scaling= 680

Voltage comp
4.6875 - 4.512
7.03125 - 3.384
9.375 - 1.896
11.7188 - 1.32
14.0625 - 0.936
16.4062 - 0.672
18.6768 - 0.48

injector crancking enrich IPW adder(main)
-32 - 279.152
-18 - 226.296
-8 - 151.696
7 - 95.208
20 - 44
34 - 5
50 - 1.504
77 - 1
82 - 0

Last edited by Jorge T; May 5, 2012 at 11:03 AM.
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Old Apr 17, 2010, 03:59 PM
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Originally Posted by Jorge T View Post
EVO 8
E85
FIC 1050-single walboro

scaling= 680

Voltage comp
4.6875- 4.512
7.03125- 3.384
9.375- 1.896
11.7188- 1.32
14.0625- 0.936
16.4062- 0.672
18.6768- 0.48

injector crancking enrich IPW adder(main)
-32 -279.152
-18 -226.296
-8 -151.696
7 -95.208
20 -44
34 -5
50 -1.504
77 -1
82 -1
How is this working for you still?
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Old May 4, 2010, 10:57 PM
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just got the logger working tonight looking at trims on my first e85 tune with fic 1050s scaled at 680 and low was -.05 and mid was -.29 I'm thinking this is about as close as I can get?
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Old May 5, 2010, 09:00 AM
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Originally Posted by PlanoEvo View Post
just got the logger working tonight looking at trims on my first e85 tune with fic 1050s scaled at 680 and low was -.05 and mid was -.29 I'm thinking this is about as close as I can get?
drive it a week w/o flashing and recheck, those are very close. way closer than i have bothered gettign mine in 2 yrs
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Old May 5, 2010, 09:25 AM
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Old May 18, 2010, 07:01 PM
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Originally Posted by PlanoEvo View Post
How is this working for you still?
Still working well. I just zero'd out the 82C in the IPW table and hotstarts like a champ in 90 F weather
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