Just want to say that both VEAL and ve-analyzer both are designed to work with AE and EGO enabled. Fwiw
Cool, I knew that was a setting but never checked to see if I had it enabled. I've turned it off in the next rev of my tune.Defiantly need to disable Over-Run Fuel at this point you are in right now. That is going to throw off your numbers for sure.
Thanks for explaining, I think the biggest takeaway for me here is the steady throttle and smooth RPM sweeps. I've been driving in the neighborhood around the shop and really should find a better area where I can do this on a long straightaway or something. I can't wait to get the car back from the exhaust shop and get back to it!I do things probably a little different than others but I typically disable: Over-run fuel, EGO Control, and Accel Enrichment. I do this so there isnt anything adding/subtracting fuel while dialing in my initial VE Table. I personally do like VEAL, but just make sure you are not doing quick throttle changes. Slowly get on the throttle (25%ish), since Accel Enrichment is disabled this will make sure you dont have lean spikes. It is best to do this on an LONG open highway or street, so you can go from a stop and roll slowly up the RPM's to say 5k then shift gears and do the same thing again. Just like @a91what said you want to keep at a steady set point as long as possible. Once I get the the end of the highway or street, I pull over smooth out the VE Table, and then drive it back with VEAL on again. It typically only takes 2 trips to get an initial VE Table ironed out.
Awesome, this is my first project like this so I'm just paranoid about breaking something before I even get done tuning lol. Thanks to you awesome dudes I might actually get this thing back home again here soon!You will not hurt your engine in part/low throttle. It is WOT you have to be more careful.
idle timing in ms3 is in it's own table, check under the closed loop settings. Once the car enters the "idle" engine state these idle tables take over. Ms3 has far more options than most ms2 users are used too..... everytime I work on an ms3 tune I learn something new or find a new hidden table.Couple issues I see just by a quick 5 minute look in MegaLogViewer.
Below is your VE Table in MegaLogviewer. As you can see you are hitting the MAP reading of row 70, which is a HUGE jump in VE then it is in your row 60. This needs to be closer together at say 65 for both 600 and 1000 RPM columns and then you can blend vertically to your 300 row for those 2 columns. I would also change the 1st RPM column to 800 over the current 600 getting it closer to your Closed Loop Target RPM. This should help with the fuel surging getting the RPM's +\- 100 RPM's from your AFR Target and the VE values closer not giving large swings of fuel. This will most likely need to be tweaked as you get this dialed in more.
Second issue is the Spark Table that your spark changes in your idle range as well, which makes for a very unstable idle as well. I recommend changing the second column of RPM from 886 to 1000 and making the timing the same as the 850 RPM column. Then update the next 3 columns to 1200, 1400, and 1600 making it 850, 1000, 1200, 1400, 1600.
The goal you are trying to do is make everything as stable as possible for air, fuel, and spark. If any or all of these are not level then you get constant surging.
I don't have any plans to run 15psi, the WG spring is 7psi and I figure I'll just run that for now.IMO your load value in the fuel table is really high.... you can lower it unless you plan on running more than 15psi. 300kpa is 30psi.....
Do you think my table above looks decent enough, or are the jumps still bigger than I should have?VE Table
- I recommended smaller jumps in the lower RPM's and then larger in the higher RPM's
- What is your cruising RPM range? (ie: mine is 1500-2000 RPM's) so I set a 200 RPM difference from idle through cruising, which gives good resolution in low MAP & AFR and high Timing to combat bucking. You then progressively increase the RPM's in a linear fashion.
I went ahead and blended the CLT row like you suggested:Closed Loop Idle Target RPM
I left this alone for now, since I'm not really sure what they should be set to. Are you saying to have the two "middle" columns set to 0 timing and +/- 50 RPM and then go up from there?Idle RPM Timing Correction Curve
Looking at my most recent log, the car seems to idle with a MAP around 50 so I set the idle VE range like you suggested and made the cells the same for 800 and 1000 rpm:Idle VE
- I would set the MAP +\- 10 from your idle MAP reading, meaning if you idle at 60 then your MAP would be 70, 63, 57, 50.
While tackling the idle, we reset the timing, moving the rotor more to the middle of the pin because it was previously only hitting the edge of the rotor. This involved breaking out the timing light and getting the offset dialed in again in TS. Steve thinks it might need to be adjusted again as we were seeing some hesitation while doing pulls in 2nd and 3rd gear. We found that the car likes to idle pretty lean at around 14.6-15 AFR and likes more timing too, set to 25 degrees across the board for idle advance.
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