for 730, $8D Accel Enrich decay factor, does a larger number make the pumpshot last longer or make it shorter in duration. (Relationship question)

Thanks

 

Bigger is more.

smaller is less

It is not an inverse table. It was believed to be once, but it IS NOT :-)

It was debunked here(actually think it was mislabled in the hac if memeory serves correctly) and with multiple board members using widebands as well.

later
Jeremy

 

Just to make sure I understand your answer. We are talking about the decay factor... The larger number will result in a longer shot of fuel, right?

If that is correct then wouldn't it be better to think of this variable as the "AE DURATION"? Higher number means more time, means more squirt...

I'm going to relable this item! Arrrrrrgggg!

Thanks

 

I'm assuming you are talking about the table at L8591->L8599.
I have it still labled as "Decay Vs coolant" which would indicate the inverse.
If that IS true than it should be relabeled to avoid future discussions.
With the upcoming release of the V4 and associated XDF we should correct this. (will put a response to your Q 69Ghost )
Not to nit-pick but actually the way I'm thinking of it it is not "more" squirt but "longer" squirt of the same magnitude.
I havn't checked into this pesonally so I'm relying on those who have.
So, should we call it "AE Duration Vs Coolant Temp" or "Duration multiplier" ??

 

I am new to the forum so I have nothing but praise for those who have toiled hours and hours to get us to this point...

However, terminology is very important. Certain words have very specific meanings. The word "multiplier" could be read in two different ways, more volume and more length of time. I haven't seen the code so I can't say which one is the case.

Being new to all this has given me perspective on some of the things that seasoned members take for granted. I suggest a discussion on terminology and try to create a sort of standard for the words used in future XDF files.

Here are some ideas:
Duration: a measure of time, from beginning of event to the end.
Decay factor: a multiplier (fraction or negative) that reduces the magnitude of something
Temp: used for all temperature related variables, coolant and air temperature
SA: Spark advance - self explanatory (I hope)
Degrees or deg: Try to avoid using this unless combined with SA or Temp as above.
INV: (all caps) should be used somewhere in the description to indicate an inverse relationship which means...
Inverse relationship: When one value goes up, the other goes down and vice versa.
TPS, BLM, etc. are self explanatory, however it took me a long time to figure out what DFCO was for (in this forum not in the XDF). The XDF ($8D) is labeled very well in this area.
Instead of "Engine speed" we should use RPM the word "speed" should only be used for vehicle speed meaning miles per hour or mph

Consistency: This is a big issue. E.g. using the word "Delta" for one item and using the word "Change" for another. Let's try to stick with one or the other.

I know it is a lot of work... the XDF item comments that I did find were very helpful. We should continue to add comments that describe the functionality of the item, the more specific the better. Perhaps we could even make a comment pointing to a directly related table. Relating constants to tables where applicable.

Some work could be done on the switches to specifically identify the exact item with the exact bit.

Lastly, I'm no expert at this but I am willing to take on the challenge of naming and providing item comments for 6 to 8 items. If we could get several people to do the same we could get a lot done. (TEAM WORK )

What do you all think???

 

By the way, "Decay factor" should really be "Decay Factor INV" since the larger the number the faster the item reduces to zero.