lookforjoe Posted January 23, 2014 Author Report Share Posted January 23, 2014 Did a harder pull 3rd-4th-5th with the modified 608 file. Way to rich - so I'll lean out the upper cells & lower the WOT values. It seems the stock VE map is pretty good as is - just needs the work to move the peak load area up to 3600-5200rpm range VE map in spreadsheet - lower section shows conversion applied to target AFR values graph 3rd - 4th - 5th data Quote Link to comment Share on other sites More sharing options...
BlackT5 Posted January 23, 2014 Report Share Posted January 23, 2014 Are you still planning on moving over to standalone at some point? Quote Link to comment Share on other sites More sharing options...
flaco Posted January 23, 2014 Report Share Posted January 23, 2014 Megasquirt maybe? Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 23, 2014 Author Report Share Posted January 23, 2014 Are you still planning on moving over to standalone at some point? That requires much more time, so if I do it it won't be until a summer. I have the VEMS ecu ready, just have to switch some hardware around. Megasquirt maybe? Yeah, right. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 25, 2014 Author Report Share Posted January 25, 2014 hitting 100% load at part throttle - running way to rich EDIT: I don't have boost or AFR hooked up! - this dash is based on one from TMM9 that includes inj voltage STFT seems better - not stuck negative as before. Have a stutter/hesitation when going part throttle tip in. Not sure whether to make changes to the VE map or tweak the injector constant back closer to calculated value of .26, currently .32 Quote Link to comment Share on other sites More sharing options...
fischmama Posted January 25, 2014 Report Share Posted January 25, 2014 hitting 100% load at part throttle - running way to rich reduced MAF scaling 10% trim levels at end of run STFT seems better - not stuck negative as before. Have a stutter/hesitation when going part throttle tip in. Not sure whether to make changes to the VE map or tweak the injector constant back closer to calculated value of .26, currently .34 stutter because its too rich? there is also an AE map, Acceleration Enrichment. Do you ever register any knock? Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 25, 2014 Author Report Share Posted January 25, 2014 stutter because its too rich? there is also an AE map, Acceleration Enrichment. Do you ever register any knock? Stutter after I rescaled the MAF map to reduce registered air mass - there was no stutter before, when it was too rich overall. I have no timing pull or knock with the TT timing map I'm using - probably because it's so rich - I get AFR's in the 11's & 10's under load Quote Link to comment Share on other sites More sharing options...
Rod'sT-5 Posted January 25, 2014 Report Share Posted January 25, 2014 H, I can't tell on your dashboard what the gauges are, with the titles being white on blue background. Rod Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted January 25, 2014 Report Share Posted January 25, 2014 Stutter after I rescaled the MAF map to reduce registered air mass - there was no stutter before, when it was too rich overall. I have no timing pull or knock with the TT timing map I'm using - probably because it's so rich - I get AFR's in the 11's & 10's under load If the stutter wasn't there before the MAF re-scale then the problem is most likely the MAF re-scaling, wouldn't you think? If you're too rich overall the best course of action would be to reduce the injection constant or specific VE map values. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 25, 2014 Author Report Share Posted January 25, 2014 If the stutter wasn't there before the MAF re-scale then the problem is most likely the MAF re-scaling, wouldn't you think? If you're too rich overall the best course of action would be to reduce the injection constant or specific VE map values. Yes, the rescaling introduced the stutter, but the whole scaling seems off since it is too rich overall, and substantially rich (10 AFR's) at part throttle, even with reduced VE map values.. H, I can't tell on your dashboard what the gauges are, with the titles being white on blue background. Rod I'll have to fix that Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 26, 2014 Author Report Share Posted January 26, 2014 If the stutter wasn't there before the MAF re-scale then the problem is most likely the MAF re-scaling, wouldn't you think? If you're too rich overall the best course of action would be to reduce the injection constant or specific VE map values. I tried running your scaled MAFtable with VE maps reduced by 1-3% and it didn't work so well. Tried the current table with inj constant reduced, that didn't run well either. I've made a revised VE table, with reductions mostly up top, since I hit 100% load cells pretty early in terms of throttle angle, and added a little timing in the 90-100% load rows, since I have no pull as it stands. I'm going to try both MAFtable BINs with reduced VE & added timing & see how it goes. The main problem with the original scaled table is that I got around 11 miles to the gallon (180mi/17.5gal) with relatively few heavy accel runs - since part throttle resulted in clouds of (black) fuel smoke. I'm losing track of what I have & haven't tried with all the mix & match between the base rescaled MAF table, and the additional 10% rescale. The logs generated aren't that helpful - it would be easier if I could attach a note to the bin somehow - in TT I had this option, which was actually useful for keeping track of changes to tunes. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 28, 2014 Author Report Share Posted January 28, 2014 Leaned out the upper cells again, on a base rescaled MAF from TMM9, with an additional 5% rescale feels responsive, and I think the trim values have improved, still trying to properly understand the LTFT_I and PL relationship & values. Gas consumption has been horrendus - the weather doesn't help, but I've been getting about 11-12mpg (!!) with this revision, my EGT's have dropped back to the 1000 degree range that I was used to under part load/cruise (had risen to 1200 with the earlier MAF scaled tunes), so I'm presuming its runner a tad leaner now. I still have the stutter, but it does seems to be a rich condition that builds rapidly at part throttle, until the AFR's are so rich it bogs & then recovers. I still have to figure out which areas of the map to adjust. Typically data logging fails to connect in Tpro precisely when I'm planning on trying to capture this. The one log I did get the other night is corrupted somehow. Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted January 28, 2014 Report Share Posted January 28, 2014 If your LTFT_I has settles at 8µs then you're golden. I would reccomend setting LTFT_PL to zero in your .bin. Like I've said before I think it is ineffectual at controlling AFRs on a non-stock motor setup. I took a look at your log and was unable to recover it, sorry. You should get your wideband hooked up your ECU and send me a long (15minute) drive to go over. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 28, 2014 Author Report Share Posted January 28, 2014 If your LTFT_I has settles at 8µs then you're golden. I would reccomend setting LTFT_PL to zero in your .bin. Like I've said before I think it is ineffectual at controlling AFRs on a non-stock motor setup. I took a look at your log and was unable to recover it, sorry. You should get your wideband hooked up your ECU and send me a long (15minute) drive to go over. Thanks for all your help with this! I hope to get the WB signal hooked up in the next couple if weeks - I can't easily work in 8-20 degrees f temps :-( Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted January 29, 2014 Report Share Posted January 29, 2014 (edited) Thanks for all your help with this! I hope to get the WB signal hooked up in the next couple if weeks - I can't easily work in 8-20 degrees f temps :-( You sissy! I just did 5 hours work on my car today and yesterday. I don't have a garage at my new house so I had to do all the work outside, uncovered. Yesterday it was 5° and snowed 4"! Edited January 29, 2014 by Tightmopedman9 1 Quote Link to comment Share on other sites More sharing options...
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