I can't wait to start playing with this OS. I have many customers that are very intrested in this along with myself. It will be another week or two before I can try it out on my car though.
http://ls1powertuning.com/cars/Resiz...utch%20001.jpg
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I can't wait to start playing with this OS. I have many customers that are very intrested in this along with myself. It will be another week or two before I can try it out on my car though.
http://ls1powertuning.com/cars/Resiz...utch%20001.jpg
That's what I like, a car in various stages of disassembly and tools/parts strewn all over the place... :cheers:
And a beer or two close by just in case... :cheers:
Yeah, but a true car guy would have those heads in the TV room, or a spare bedroom :DQuote:
Originally Posted by joecar
Cheers,
Ross
They are just 241 ls1 heads. I can't hardly give them away. So I am going to cut them up and make a flycutting jig out of them.
...:DQuote:
Originally Posted by GMPX
Slow me, tested the TPS table out yesterday. I triggered off at 3200rpm, on under 3200. Seemed to work well, nice throttle response, though as Tordne commented to me, it doesnt track commanded as well as SD based VE.
I think Ill work some more with it as I like the response.
Hi I've been playing with the COS #5 on my 402 and it seems very promissing so far. I'm not sure if you have tried this, but in order to dial-in the values in the tps based ve table I set it up to auto tune that and it actually seemed to work well. I can't get rid of a little flat spot at about 8-10 percent tps and about 1700 rpm, but I haven't had time to play with it much yet. I have a big cam(248-250 and 613 lift), but I don't think it's even big enough to need this table.
I already have the map based VE dialed in perfect, but I can't seem to get the car to want to do anything except for die until it reaches 180 degrees F. It wants to run very lean. It doesn't even stay close to the commanded AFR. I've been fighting this the past week. That's the reason I tried the TPS based VE table in the first place. Any suggestions on what could cause this would be great.
Is the ET or IAT getting to 180*F the problem? If it is the IAT temp you could use the A0014 VE multiplier table. I found that to work wonders.
The coolant temperature has to get up to about 180F before it seems to richen up to the commanded AFR. I was reading up on this issue and it appears to be somewhat common with SD tunes. I'll play with it some more and hopefully figure it out. I think I may need to tweek the B3632 table a little.
In order to use the input for the nitrous actiavtion do you simply ground the lead? Thanks again, Brian
The B3632 table decays pretty quick, unless you completly change the decay rates etc. this will not help you much. How about the A0008 ECT Commanded Fuel multiplier?
yeah just ground the pin, its the same one used for valet mode, selectable in the tune.
I use the valet now and again.
Your ect spark tables might be pulling timing till warm too. Some of us have zero'd out most colder temps due to lack of power at colder ect's. Just remember to not use all the power till warm.
I just upgraded to OS #5, but i'm having issues with the Commanded Air Fuel Ratios. Upon startup the Commanded AFR is about 12.08, works its way up over the next few seconds, and then gets stuck at 12.53 and never goes any higher. The commanded Air Fuel table is set to 14.63 at the proper cells that are being referenced.
Any ideas?
Have you read the auto tuning tutorial? Have you tuned your ve 100% with a wideband? Its only accurate AFTER you have tuned it in with the auto ve tutorial.
Give us the background and details.
Car has been tuned with the AutoVE for 2 months now. Everything pretty much dead on with the wideband. The problems isn't with my reported AF readings, it is with the Commanded AFR.
Been using the BEN Factor map to tune with, Commanded Air Fuel Ratio under idle and cruising conditions has been showing as 14.63 in the scanner while logging, and 12.95 is where i've been at WOT. (It is setup just as the Auto tutorial docs show)
Now i'm ready to do just a little more tweaking to the VE table and turn the LTrims back on for daily driving, but I'm also a nitrous junky, so I decided to throw in OS v5 for the N2O activated timing table.
I've been running a 2001 12202088 operating system and calibrations, this morning I did a full flash with OS v5 02020005 calibration and used a 2002 12212156 tune file to update the calibrations with. Then I hand updated all the tables to reflect my previous tune settings.
The car appears to be running fine, it is just that while logging the car, it is reporting the Commanded Air Fuel ratio as 12.53 ALL the time, idle, cruising, WOT (all the time except for the initial couple of seconds after startup) So my BEN factors are way out of wack... and i'm sure that if I turned the Strims or Ltrims on at this time, it would try to richen it up all the way down to 12.5
You can send the file to me if you want and I'll take a look. Email andrew at holdencray dot com
emailed it to you.
For anyone else that might want to take a gander and offer a new perspective.
http://www.cepheid.org/~kris/EFILive/OSV5_0001.tun
Looking at your tune I would expect your Commanded AFR to be around 12.5 until your ECT reaches 40*C (104*F). Then it will command 14.63:1 from there up, till you hit 85kPa and above, where it enriches to 12.95:1.
You should look at your PE thought, cause it is still enabled and you are commanding 14.63:1 in PE mode :eek:
Your desired airflow table also looks way too high...
Desired Airflow needs to be that high to keep this motor idling properly.
Car's setup is a 408, AFR 225s, 248/254 .622/.612 114+2, 11.3:1 compression, FAST 90/Nick Williams 90mm, SVO 30lb injectors, MAFless.
Setting the PE vs RPM table to 14.63 is what the AutoVE tuning tutorial says to set it to.
Here is a tune from some tuning last night when the car was still runing the stock operating system:
http://www.cepheid.org/~kris/EFILive/Log_0029.efi
And here is one from just now from a cold startup (at frame 3700 or so I turned the A/C on to raise the operating temp up some more)
http://www.cepheid.org/~kris/EFILive/Log_0030.efi
You have something funky going on with your tune. In the last log it shows you at 180* with a commanded AFR of 12.53, but the tune shows you should be at 14.62. Duh. I have enclosed a new tune for you. I have adjusted the commanded AFR and hopefully this will help. Let me know what you come up with.
http://black02ss.dyndns.org/KrisOSV5_0002.tun
That fixed it Chad!
It is VERY funky... but it appears that changing over the whole commanded AFR table to 14.63 and moving the PEvsRPM table to 12.x has fixed the issue.
I'll get out here in a bit and do some driving on it to make sure it is working 100% proper, but so far it does appear to be fine.
Thanks guys!
Well I got bored today and decided to start playing with the TP-VE table as well. I started plotting out the data a little bit. It sure is a PITA to get all those areas plotted. I turned off all the throttle cracker/follower, dfco, trims, etc and got a fairly smooth graphing for the main areas of the table.
http://www.cepheid.org/~kris/EFILive/kris-TPVEplot.jpg
I guess i'm gonna try and get a bit more of it plotted before I decide to enable any of it... and then I guess i'll just have to actually figure out what to do with it all from there :nixweiss:
Looks like mine does, except nicer at the bottom, probably due to you turning dfco off. What you can do to if you are itching to test it is to tidy up the points you are missing and enable the table, but disable on say 3600rpm or where-ever your table runs out. Basically that will run it up to 3600rpm. Thats what I did. Worked well for a quick test. (maybe put some high values outside of this point as a failsafe)
What are your impressions Richard, can you notice any difference in driving?
Cheers,
Ross
Performance seems to be more directly related to throttle action. (surprise surprise) With MAP B3647 table it was good, but seemed to follow behind throttle a little. All in all makes things nicely responsive. Ive not done enough extended testing to see what happens to fuel economy. From my wider reading it appears it may suffer a little. But I think for circuit racing situations, drifting etc, it would be excellent.
well i've gotten my TPS VE table dialed in to within +/-2% between 0-3000rpm & 0-20% TPS.
My setup is in my sig, and with the largeish cam I've always had some driveability issues, and most of them appear to have already been addressed by enabling the new table.
My cam has low vacuum at idle, at idle i've always jumped around between 4 cells 70-75kpa/800-1200rpm tables. With the A/C on, the idle has been fairly rough, even with different timing settings at idle. Now it only has to jump between 2 cells and made the idle MUCH smoother.
I've also always had some issues under some cruising conditions. Lots of studdering around 1700-1800 rpm, and again up at around 2000-2100 rpm. Once again, the new table has seemed to taken care of most of those problems.
Taking off from an idle, and transitioning between the shifts has also smoothed out. Throttle response is also slightly better.
Just from my impressions with it, I don't know how well the table would work being fully populated and enabled throughout the entire range (not to mention it would be a MAJOR job to populate and fine tune, especially without the aide of a mustang dyno), but it seems to work excellently for the lower regions.
Good news Kris, I think you have pretty much highlighted exactly what this O.S is good for and a great combo to prove it on.
Your comment "but it seems to work excellently for the lower regions.", I would also suggest that everyone just use the TPS VE in the area's you cannot get consistent MAP values in then switch back to the MAP VE once things become steady as you have done, good stuff.
Ringram......Drifting:bash: !
Cheers,
Ross
why is b3647 disabled in this os?
I was wondering the same thing... but when looking a little more into it, I found that 3647 is in the Holden OSv5, but not in the F-Body OSv5... even though it was in OSv3 :nixweiss:
arg... so i have to change this ALL OVER AGAIN!! NO!!!!!
I HATE CHANGING OS'S! there should be a way to simply import from one cal to another.....
Weird that you would have lost the B3647 table. Just double checked myself and you're right :eek:
Im not doing it again...
Sorry guys, my bad, I just forgot to enable those tables in the cal file.
Save the one in the link below into -
\Program Files\EFILive\V7\Calibrations
and the tables will magically appear. They are in the PCM code and fully functional, there is no need to do any tun file mods.
Cheers,
Ross
http://efidownload.iqd.co.nz/software/GMPX/02020005.zip
Interesting... So does that mean that the B3605 table still actually exists in the Custom OS then? I thought you just stole the space it took up and change its purpose, and issued a new cal number B3647.
I can't get the calibration file to download... anyone else able to get it?
btw... you rock Ross!
Not me...Quote:
Originally Posted by Kris
Bill
:bash:
Me neither
me too.Quote:
Originally Posted by Kris
I think the cal is not needed anyways... All you have to do is copy your table and that is it... It uses the same table location and once you have that table setup... you don't change it.. So we are good to go anyways.
Update..I tested it.. and its working like its supposed to B3647. afr vs map...
Playing around for just 10 mins... it has made my tuning a lot simpler... a LOT less variation... NICE! I LIKE IT!
Perfect way to separate idle and low throttle conditions to other condition on the VE Table. I guess that is why GM uses a MAF, for those conditions.