Quote:
Originally Posted by Asmodeus6
Ok ok ok... so when all you smart fellas were off playing with WG tables I turned a knob on a mbc. I'd like to play too now. 
I have read through dozens of dozens- of pages of this stuff and it's turning my brain into silly puddy.
96530006 ROM
-I have JDM Map
-I have GM BCS
-(I'm already SD w/maft pro)
I have Teph's 7.6 rom on the car to try some of this stuff out. I used Phenem's xml incorporating mrfreds boost control mods. And I just do not get it. If you read any of the old threads - things have evolved. I want gear/based psi boost control gosh darnit. And none of the other threads really give a primer on how to use this stuff. There are many of you out there already using this stuff. I can tune an ebc. I used an avcr for years. I am familiar with how the rpm/speed switchover points work. It works very similarly. I understand target boost - I understand WGDC, I think I get correction.
But I'm at a loss for really where to start. Moving from the 96940011 rom I have a ton of new tables concerning turbo's and boost I have never seen before. I read how the initial load based system (stock) was supposed to work. I think I understand that. But this has evolved a few times since even the psi targeted boost control. Is there a specific thread I need to read? I've read the ones from evo kid and mrfred I think to the best of my ability.
To compound matters it is not a matter of comparing an example of some tables someone experienced was nice enough to post. I'm on a Tial 44mm and a 3076R. So I don't know where to start really. There has been changes to the MUT table - things moved around... And this is a new rom for me. So I don't have everything stored in quick handy noted sections like I did for my old rom.
What is step one?
Which of these tables do I use, don't I use, and where do I get the values for the speed/rpm points for the gears. I've seen bits and pieces of this stuff scattered through probably 6 or 7 different threads - mentioned here or there, corrected, corrected again...
It's really hard to find the necessary info in one place on this to make sense of it.
If this seems like an attempt to get spoon fed, I assure you. I have searched and read through probably a couple hundreds of pages of posts at least twice. Maybe I just missed what I was looking for. But I know Schniedes and Phenem among others are running this rom and ecu controlled boost.
Can I get a quick primer. I assure you I'm not an idiot. Just honestly a bit confused on where to start with this. GM BCS in hand. I can wire it up and start fooling around at leisure. It came today and I almost put it on until I realized even though I thought I understood this. I really don't.
Some input please. |
I might be able to be of some help here... W/ the new
Tephra Rom to tune your boost control, you would use the 3D tables that he has in his
Tephra Mods Section You will not use the Baseline boost and WGDC maps from before in the boost section! You can either delete them entirely, or you can edit them as un-used so you know, you dont use them. You might have to edit the 3D boost map from Load8 to psi8, so it will read in PSI instead of load%.
NOTE: this is what I did w/ v.6 NOT sure if this is necessary w/ the v7. I have not played w/ anything further than v.6, as my rom hasnt been done yet...
To get the data for the rpm/speed to gear table, you need to log RPM_SPEED_RATIO_AVERAGE and Gear. Go thru all of the gears @ a somewhat cruising pace, and see what you log. If theres a big difference between start and finish of each gear, as mine were, input the midpoint, that you know it will always hit, and then input that value in the rpm/speed to gear map!
You can find the info on this, in the beginning of the v.6 Testing thread.
W/ PSI based control, the only difference is shooting for boost, rather than load. Makes for much easier calculations. (for me anyways) Setting up the corrections is a lil different, cause you wont need as much duty cycle to correct. I will post up a SS of a few of my maps from v.6 Mainly the ones your looking to understand...
Theres only difference when tuning w/ a 3 port as opposed to the stock BCS, is its a lil more responsive, requires less duty cycle to achieve same boost levels, and it also hold boost better, but same concept! Oh and you wont be limited on peak boost! Love the 3 ports!
W/ the MUT table that is provided w/ the Tephra Rom, you would compare the 2, then copy over your old MUT table. There are a few changes in the tephra MUT table. @ 40 (Gear), @ 41 (1Byte Load), @ 42 (rpm speed average ratio) and 43 is MAT scaled. There is a couple more I believe, but I dont use them.
So basically your boost maps and rpm/speed to gear will look
similar to this.
Note: IX, 5 speed. If you have a five speed gear box, then you would input 1 in the box w/ 6 (showing 6th gear) as you would never hit a value of 1, so it will never look to that...