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Injector scaling/latency for Precision 880cc

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Old Apr 26, 2007, 06:00 PM
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Injector scaling/latency for Precision 880cc

Does anybody have a set of 880cc injectors or something similar that would help me out with adjusting the injector scaling/letency so I can get the car to idle so I can get tuned in a couple days.

The injectors are 880cc precision injectors.

Thanks guys
Old Apr 26, 2007, 07:23 PM
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nobody has these injectors or something similar I take it...
Old Apr 26, 2007, 07:34 PM
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Actually I think a lot of people have them, they just expect you to search and figure out how and why you need to rescale. Figuring it out for yourself, helps explain a lot about the latency, fuel trims, etc. It was a major PIA for me and my fuel trims still aren't that good (latency still off) (hint: I started scaling about 80% of injector size and copied the latency off of the AEM board) Good luck!!
Old Apr 26, 2007, 07:43 PM
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I have the PTE 880's and have them set to the following:

Injectors scaled at 750cc

Latency is as follows:

4.6875 3.624
7.03125 1.992
9.375 1.344
11.7188 0.984
14.0625 0.744
16.4062 0.576
18.6768 0.456

Idle is perfect and low, fuel, high is spot on...let me know if it works out for you

~Zach
Old Apr 26, 2007, 09:09 PM
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Originally Posted by phenem
I have the PTE 880's and have them set to the following:

Injectors scaled at 750cc

Latency is as follows:

4.6875 3.624
7.03125 1.992
9.375 1.344
11.7188 0.984
14.0625 0.744
16.4062 0.576
18.6768 0.456

Idle is perfect and low, fuel, high is spot on...let me know if it works out for you

~Zach
That's the spirit Zach help a brother out I respect that
Old Apr 27, 2007, 04:35 AM
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Originally Posted by MrEvo2U
Actually I think a lot of people have them, they just expect you to search and figure out how and why you need to rescale. Figuring it out for yourself, helps explain a lot about the latency, fuel trims, etc. It was a major PIA for me and my fuel trims still aren't that good (latency still off) (hint: I started scaling about 80% of injector size and copied the latency off of the AEM board) Good luck!!
I do understand why they need adjusted, but why would I want to mess with doing all of that the day before I get tuned when I know somebody has something I can use as a reference to get my down the road...

Thanks for your non-informative input though
Old Apr 27, 2007, 04:36 AM
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Originally Posted by phenem
I have the PTE 880's and have them set to the following:

Injectors scaled at 750cc

Latency is as follows:

4.6875 3.624
7.03125 1.992
9.375 1.344
11.7188 0.984
14.0625 0.744
16.4062 0.576
18.6768 0.456

Idle is perfect and low, fuel, high is spot on...let me know if it works out for you

~Zach
Thank you sir for the informative response. This is EXACTLY what I was looking for and couldn't find searching. All I found was 780 and 1000, so I needed something closer to the 880s to establish a solid starting point.

Thanks again

Last edited by kmcconn9; Apr 27, 2007 at 07:24 AM.
Old Sep 2, 2007, 06:52 PM
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i know the feeling, before this i couldnt find the scaling for the 880's only latency values.... thanks man... at least i know i was close i was dead on with my scaling at 750 i guess... my voltages were a hair off
Old Oct 28, 2007, 11:30 PM
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subscribed for later use, thanks!
Old Nov 27, 2009, 01:45 PM
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Old Nov 27, 2009, 01:52 PM
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Originally Posted by MrEvo2U
Actually I think a lot of people have them, they just expect you to search and figure out how and why you need to rescale. Figuring it out for yourself, helps explain a lot about the latency, fuel trims, etc. It was a major PIA for me and my fuel trims still aren't that good (latency still off) (hint: I started scaling about 80% of injector size and copied the latency off of the AEM board) Good luck!!
This is what he was talking about....hence the search comment
https://www.evolutionm.net/forums/ec...upermerge.html
Old Nov 27, 2009, 03:28 PM
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Old Nov 27, 2009, 03:35 PM
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do i have to do anything to my fuel trims?
Old Nov 27, 2009, 06:20 PM
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Originally Posted by steadly2004
This is what he was talking about....hence the search comment
https://www.evolutionm.net/forums/ec...upermerge.html
Do you know that this thread is almost 3 years old
Old Nov 28, 2009, 05:29 PM
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Originally Posted by black-dsm
Do you know that this thread is almost 3 years old
Do latencies change over the years?
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