Just to try and get this all in one place.

Here's the ones I found. If you know of others, post up and I'll update this thread.

These values are a starting point. You should watch your fuel trims and if they are going out of what then adjust these values accordingly to make sure that your car is running correctly.

DeatschWerks 1000cc (drop in, two flavors appear to be out there, one short one long like stock)
Scaling
Pump: 713
E85: 562

Latency
6.120
4.200
2.808
1.992
1.488
1.200
0.912

DeatschWerks 800cc (drop in)
Scaling
Pump: 696

Latency
5.904
5.400
2.880
1.944
1.464
1.080
0.816

Alternate (Clipse3GT):
Scaling 770

5.736
5.232
2.496
2.016
1.368
1.008
0.624



RC 750cc (pigtail required)

RC 1000cc (pigtail required)

Injector Tuning Notes (Courtesy of Clipse3GT)
1. Choose a global setting (ECUFlash injector scaling number)
2. Log trims at idle and cruise
3. If trims are roughly the same, but positive, then you need to increase your global fueling, or in terms of ECUFlash, you need to lower your injector scaling number.
4. If both trims are roughly the same, but negative, then you need to descrease your global fueling, or in terms of ECUFlash, you need to raise your injector scaling number.
5. If idle trim is more positive than cruise trim, then you need to increase the dead time, or in terms of ECUFlash, you need to increase the latency value.
6. If the idle trim is less positive than the cruise trim, you need to decrease the deadtime, or in terms of ECUFlash, you need to decrease the latency value.

NOTE: After #5 or #6, you may need to readjust #1 accordingly.

NOTE 2: Basically, let's say that the IPW is 1ms at idle and 2ms at cruise. If you adjust the deadtime to add 100us (.1 ms), then you are affecting the idle fueling 10% and the cruise fueling 5%.

 

Good find man. Random question regarding fuel trims, if mine are effed i.e. 12.5+ but the AFR is fine should I bother changing them back to 0% and adjusting the tune?

 

I would leave the scaling alone and adjust the latency to near 0% as possible. Whenever changing latency values, always reset the ECU by unplugging the ECU harness for about 10 seconds.

 

I had terrible results with these settings. My AFR's were -10's LTFT Cruise. I finally got my injectors to pretty much +/- 1.5% cruise and idle. With tons of trial and error.

Scaling 770

5.736
5.232
2.496
2.016
1.368
1.008
0.624

 

1. Choose a global setting (ECUFlash injector scaling number)
2. Log trims at idle and cruise
3. If trims are roughly the same, but positive, then you need to increase your global fueling, or in terms of ECUFlash, you need to lower your injector scaling number.
4. If both trims are roughly the same, but negative, then you need to descrease your global fueling, or in terms of ECUFlash, you need to raise your injector scaling number.
5. If idle trim is more positive than cruise trim, then you need to increase the dead time, or in terms of ECUFlash, you need to increase the latency value.
6. If the idle trim is less positive than the cruise trim, you need to decrease the deadtime, or in terms of ECUFlash, you need to decrease the latency value.

NOTE: After #5 or #6, you may need to readjust #1 accordingly.

NOTE 2: Basically, let's say that the IPW is 1ms at idle and 2ms at cruise. If you adjust the deadtime to add 100us (.1 ms), then you are affecting the idle fueling 10% and the cruise fueling 5%.

 

Thanks guys, I've updated the first post.

 

I am working through email tunes with MotionLab Tuning to get my modified stock 820cc injectors dialed in. I am now understanding how much of a pain it is to dial in new injectors. After adjusting values can you clear the ecu with the ecuflash reset dtc or is unplugging the battery neccesary?

 

i agree with you.
i used the 696 scaling and the car trims are not ok. the car is also smokes black (rich).

but i noticed that the trims are not cleared to zero by simply flashing the ecu. it seems i need to unplug the battery cable for a minute or so.

 

https://www.evolutionm.net/forums/3313010-post69.html

 

https://www.evolutionm.net/forums/3313010-post69.html

 

I'll report back with what I settle on. I'm re-adjusting my numbers after accounting for the leaner AMS Intake setup and using the MAF compensation code (+10% G/S) so that my injector scaling and latencies are more apples to apples and done properly. I figured if my AFR's are going to be a little off after disabling LTFT at WOT I may as well standardize this as well.

 

Cobb has base maps for deatschwerks 800cc injectors for 93 octane and e85

 

After I looked through various maps for 91 & 93 OCT, for various intakes and stages 1 & 2. The scaling always stays the same as well as latencies.

So these are the settings for all the maps, unless someone else can prove me otherwise.

SCALE: 750



************************************************** ************************************************** **************************************************

E85 FUEL

SCALE: 542

 

Need some input here... I've been trying desperately to get my Deatschwerks 1000 cc's dialed in and the best I've been able to achieve is about +/- 1% Idle LTFT and +6-7% Cruise LTFT. I've already wasted a ton of time, and I'm wondering if anybody has some known-good scaling and latency values for the long-tip DW1000's.

Here are mine:

Scaling: 886

Latencies:

6.12
5.328
2.808
1.824
1.464
1.08
0.816

Like I said, it's close, but not nearly perfect enough for my liking.

 

Just an update... these same settings now have me -1.5% Idle LTFT and +4.5% Cruise LTFT. Pretty good, I'll probably leave them for now.