Injector Offset ?'s vs LS1 edit

[jfpilla]

I've already done it by trims. It will be nice to do it by BEN and have them match what I've done, closely.
Thanks for the input.

[oztracktuning]

I just had another go with the voltage offset table - this time i just changed the cells to suit the situation. The issue is i have used the IAT correction tables in the custom operating system to get the afrs consistent in different IAT and it is almost there....however the problem is that idle is still not cooperating and its leaning out when the IAT is hot but its not consistent with IAT temps ie. at the end of a long drive it is lean idling even when the IAT temps are lower than 30min before when the IAT temps were higher.

I think the issue is lower battery voltage after the car is driven for a while. Early in the drive its nearer to 13.4V at idle most of the time but when driven and hot its closer to 13.0V at idle and sometimes lower especially when the idle is erratic. I think leaness at idle is causing the erratic idle - it seems to be the main thing that is different ......so to fix it or at least i will find out tommorrow - i have just added a little extra offset in the cells that are used at idle in the voltage offset table , in the 11.5, 12.0, 12.5, 13.0 V columns. I added 0.08 in the 13.0V and 0.10 in the others. This should effectively richen things up a bit when the car goes lean at the end of long drives at idle

As i said earlier when moving and voltage is up a little higher the afrs at the end of a long drive are well sorted its just at idle things arent quite good all the time.

Currently im logging a 45min trip to work and trimming the tune and then logging on the way home. It makes the trip fun EFIlive.

[joecar]

Currently im logging a 45min trip to work and trimming the tune and then logging on the way home. It makes the trip fun EFIlive.

Makes your breaks at work fun too...

[jfpilla]

This worked for me.

Calc. IFR and use stock MAF table.

With MAF.
Set up a MAP to log LTFTs_MANVAC_BATVOLTS and adjust these ltfts using IOS table. The VE's have no affect so you can keep what you've done. You can stop here. I like my VE's tuned even though I run the MAF.

MAFLESS.
Either do the above step first or if you don't have your maf installed do an autotune or keep your VE's if already done. Only adjust VE's to the point that DYNAIR matches MAF logged values. This will account for any incorrect IOS numbers. Then log IOS using BEN_MANVAC_BATVOLTS and adjust IOS.

I'm really pleased that the only tables now not stock are ETC and Startup Friction Airflow Correction. Probably due to having a 90MM TB.

[oztracktuning]

Its offtopic - but here is a music video of the trip i made for a bit of fun. Its on the outskirts of Sydney where much of it is still farmland. http://www.athleticstraining.com/carsnew/fasthawk.wmv

[TAQuickness]

jfpilla - Somehow I lost my train of though in this thread... Need some help to make sure I'm on the right page again.

Adjustments to the IOS are based on the difference in LTFT's or BEN's from one voltage/man_vac range to the next (column to column). If we're thinking the same thing, this part makes sense to me.

What's loosing me is what to use as the starting point. seems we would need at least one column of known good IOS offsets to use as a control.

[jfpilla]

jfpilla - Somehow I lost my train of though in this thread... Need some help to make sure I'm on the right page again.

Adjustments to the IOS are based on the difference in LTFT's or BEN's from one voltage/man_vac range to the next (column to column). If we're thinking the same thing, this part makes sense to me.

What's losing me is what to use as the starting point. seems we would need at least one column of known good IOS offsets to use as a control.

It does appear that it's easier if you start using the MAF to get a decent IOS table. The option without an MAF is to set VE's to the point that the MAFgms and DYNAIRgms are close. That will get the AFR to a point and the difference is made up by setting the IOS table. The Offset Ben Map will get you there.
My IAC DES., DYNAIR and MAF numbers fell right in line.
It was magical.

[joecar]

Its offtopic - but here is a music video of the trip i made for a bit of fun. Its on the outskirts of Sydney where much of it is still farmland. http://www.athleticstraining.com/carsnew/fasthawk.wmv

Flyer,

Cool video, looks familiar, where exacltly was it shot...?

Joe


Edit: We're sorry to hijack the thread, we're attention challenged...

[oztracktuning]

Blue Mountains to M4 then through Penrith and out Castlereagh Rd to North Richmond and beyond about 10min. Its a nice simple drive. In the mornings its been 25deg C and in the afternoons its been hot 33 deg C. Good variation for logging. But in winter it will be cooler and quicker!

[oztracktuning]

My log today was a success - it seemed to help. I logged voltage and created a chart with rpm and afr and it seemed to show a good change.
Its certainly better parking up my driveway now when its hot. So i think this table is a good thing.

As soon as it has any lean afrs up near 15.0 at all when idling - the idle quality deteriorates.