9-5 tune holset hx40

[lekonna]

So ok, things changed affecting the SW:

turbo: holset hx40 super #14
wastegate: Tial 0.7bar bb, (C-hole from the mvalve drilled to 2mm)
intake: atleast 3" to the turbo
exhaust: 3" all the way, no cat
cams: 264/9.6, at around 1mm
flywheel: slightly lightened
pistons: wössner
plugs: 7s
injectors: siemens deca 630cc

SW Info:
based on the B235E EU sw for 98-99 9-5
sw version: EAZ1Z922C.53D if you want to compare ( original can be found from this forum )

whats done on the sw so far:
modded the basic request maps and the limiters
modded the fuel maps so it starts and in closed loop keeps it at 14.7
modded the vin code to inlcude the "G"
tried to disable the 2nd lambda
open sw
acc pedal multiplier
reg con mat. for the wastegate

logging:
ot-1 and LC-1 from innovate installed

status:
-spools up to around 1bar and makes 1300-1400mg/C, then looses boost quickly till down to base pressure and 1100-1200 mg/C near the rev limiter
-with a long pull (3 through 4) it goes into a mode that it requests only 600mg/C max.
-meng shows the 400, mlow shows 296
-after flashing runs like shit until adapts to the idle properly. tries to stall and dies when left to neutral and gas pedal pulled up. Changed the constant part of the
idle regulator a bit now, didn't try it yet (worked previously)
-lights up the CE for the rear lambda current limit though thoroughly tried to remove it from the sw (does not light up if obdII is disabled)


next:
will install the can adapter to see the knock values and what is limiting the torque and wether trionic hears any knocking.

feel free to comment and give suggestions, however i'll only upload sw to the car that i've personaly change just so that i can keep track on what changes have been done, so if you have
suggestions please give them in a form of "cat.map change values xx,yy to zz"

-leko

[Dilemma]

That will be a hell of a 9-5 car ... !! Super to see that the HX40 flows sooo much air at just a measily 1 bar

[jzw]

Can't look at it because I have not used open tool yet, from what I can tell you need to adjust the injector konst some more, find a flow graph and figure out exactly what it should flow, I know the 630cc injectors run around 486 to give you a base line.

You still have some torque limiters to adjust, you are missing some, my stg 5 viggen tunes and 95 tunes show the mlow at 400, but will hit 550nm with the 19t turbo and green giants with the 3.5 fpr. I can get 1350-1400 airmass out of them for a while. With that turbo, you need to keep the airmass requesting more all the way to redline and not bring the torque limit down, keep it going up or the same high number all the way to redline. With the efficiency of the holset, you will be able to get away with more timing than usual, I retard the timing in the high boost area about 1 degree for every 50bhp increase, do the math and figure out where you want to start and then find out what the knock adapt is doing and with a tech 2, the level can be monitored.

You should be at least in the 1500-1700 airmass request range once you get the timing and torque and airmass limiters all in line.

good luck

John

P.S. Teaser video of my Holset super 40 on my t5 2.3 ng900

http://videos.streetfire.net/video/saab ... 640075.htm

[mackan]

JZW: I've only seen 458 @ 3bar and 14VDC specified for the 630cc injectors, where have you seen the other number?

[lekonna]

just tried that tune, it now kicks 1450mg/c untill the rev limit, around 1.2bar, feels pretty quick already.

I'll try to catch some logs for ya.

[lekonna]

here are logs from this tune, i've gone and changed the injector end angle a bit because of the cams.



3th gear from around 100km/h to rev limiter

it starts out pretty lean and then drops down, possibly knock enrichment? The requested airmas also goes down to 1100 (actual still keeps around 1300) .
boost is around 1.1 and then drops to 0.85

Macan provided me with fuel maps and other goodies that i'll try out and see how they work. once i get the AFR nearer to 11 right from the get-go i'll start
requesting more air.

-leko

[lekonna]

so, changed to 06 aero base sw.

what was instantly obvious was that the fuel system does not work like with the 98-99, the lambda control was at -25% all the time and still could only
barely keep the afr somewhere around 14.0.

the fuel maps and the injector const were exactly the same as in the 98-99 sw. even with rising the inj const from 430 to 475 it still runs rich as hell
and the amul went to -2000.

any ideas on what has changed on this base, why arent the old values working ?

other than that, it worked better than the 98-99sw, did not stall so much.

[J.K Nilsson]

any ideas on what has changed on this base, why arent the old values working ?

Settings of the two pressure transducers before and after throttle and the temperature sensor?

J.K Nilsosn

[lekonna]

any ideas on what has changed on this base, why arent the old values working ?

Settings of the two pressure transducers before and after throttle and the temperature sensor?

J.K Nilsosn

should it affect the fuel this much ?

[J.K Nilsson]

should it affect the fuel this much ?

I don't know, they are the only hardware differences i know of that could affect it.

J.K Nilsson

[lekonna]

tricky.. my wideband decided that the fuel pump was left open and now requires a new calibration, i'll switch back to the old base for now until i have sufficent time to crack this problem.

it seemed that raising the injconst affected things but why was it so much off to begin with troubles me. I'd like the values to be based on some sort of understanding on how they work,
first thing that popped to my mind was, ok maybe the value has changed from g/s to cc but that was not clearly the case since the original value has remained the same.

damn, i want a newer software to be able to enable the wb on sid and get can logs with wideband data in them

[jzw]

The fuel pump can effect the flow greatly. I just had a stg 4 95 aero tune running great, then he put in a walbro 255lph pump and the car went from 11.5/1 to 9.8/1! Same issue on the amul -1700, went up in constant and ended up at 315 on the injector konst for stock injectors! The car then ran well with the amul going from +273 to -574 and would change over time, I had to remap the wot fuel map in the last two to three columns to get it to run right. Then I was 11.8/1 to 12.2/1.

I then stopped getting the short term fuel trim to max out and throw a code, be careful, I have noticed the a/f can go lean when a code like this is thrown.

Mackan, Pro gt3071 file.

I get a max of 400nm for mlow no matter what I have done, but have been able to get 550+nm Meng or actual torque with a larger turbo of course. There is still some maps you are missing, go through every single torque map and study it and see if it has anything to do with your limits.

Also, to get the a/f to drop down more quickly, you can change the Load limits in airmass, but what I like to do is change the amount of time above those limits to switch to open loop, most stock files seem to be 2000, I change that to 500-900 on higher hp cars.

John

[J.K Nilsson]

Mackan, Pro gt3071 file.

I get a max of 400nm for mlow no matter what I have done, but have been able to get 550+nm Meng or actual torque with a larger turbo of course. There is still some maps you are missing, go through every single torque map and study it and see if it has anything to do with your limits.

If you fíre up IDA-pro you are able to see wich maps that requre changing.

Have you got TCS?

J.K Nilsson

[lekonna]

Hi John,
thanks for the info, i've got a bosch 044 in the tank, so i don't think the issue is with the pump. and like said, the 98-99 sw works quite ok with the same bfuel maps and injector const, but the 06 aero sw completely refuses to work with those maps, so there is something fundamentally different with that base.

can you throw me your bin so i can check which maps you've changed. i'll just compare it to the original version.

[lekonna]

by the way, i couldn't get the CAN to initialize properly with T7 suite and this image,

tried it quite a few times and got "initialization failed" every time. Then tried with my own can sw and got
readings out ok, any hints on how to get the can logging to work? i did hit the tab in the settings that sais can logging.

[lekonna]

tried the 05 aero sw. same thing as in the 06, runs very rich and adapts amul to -25% and still needs to use lambda to go -10-20% on normal driving, so thats
basicly 40% more fuel than it should have.

I'm having a feeling that for some reason on this newer softwares the injconst is not affecting the actual injection time ..

[jzw]

Mackan, Pro gt3071 file.

I get a max of 400nm for mlow no matter what I have done, but have been able to get 550+nm Meng or actual torque with a larger turbo of course. There is still some maps you are missing, go through every single torque map and study it and see if it has anything to do with your limits.

If you fíre up IDA-pro you are able to see wich maps that requre changing.

Have you got TCS?

J.K Nilsson

Some of the cars had tcs and one was a 1999 viggen with 00 sw version and the same thing, 400mlow, yet 550nm with 19t and forged pistons. I need to get ida, then I can see more of the true picture

John

[jzw]

Hi John,
thanks for the info, i've got a bosch 044 in the tank, so i don't think the issue is with the pump. and like said, the 98-99 sw works quite ok with the same bfuel maps and injector const, but the 06 aero sw completely refuses to work with those maps, so there is something fundamentally different with that base.

can you throw me your bin so i can check which maps you've changed. i'll just compare it to the original version.

Weird, I was maxing out short term and long term just with the walbro 255lph fuel pump change, you have to be rich in closed loop in my opinion.

If you had the file in symbol ready t7 suite, I could look at your file for you and tell you where you need to make a torque limit change to get the torque limit up to 400nm mlow.

Send what you have to me,

John

[lekonna]

Hi John,
thanks for the info, i've got a bosch 044 in the tank, so i don't think the issue is with the pump. and like said, the 98-99 sw works quite ok with the same bfuel maps and injector const, but the 06 aero sw completely refuses to work with those maps, so there is something fundamentally different with that base.

can you throw me your bin so i can check which maps you've changed. i'll just compare it to the original version.

Weird, I was maxing out short term and long term just with the walbro 255lph fuel pump change, you have to be rich in closed loop in my opinion.

If you had the file in symbol ready t7 suite, I could look at your file for you and tell you where you need to make a torque limit change to get the torque limit up to 400nm mlow.

Send what you have to me,

John

The bin is basicly the same that is attached to the first post, that goes only amul -875 the same fuel maps & injector const on 05 or 06 aero sw go -25%

[lekonna]

tuning from bizzarro world continues,

set the injector const to arbituary 550, which makes the amul go to -1% which is close enough for me.

also tried to disable the closed loop by setting the LambdaCal.MaxLoadNormTab to straight 100 the effect on this was that it never went out of closed loop
adaptation.. at 1200mg/C i was still pulling 14.7AFR and in closed loop mode. wtf? Then i realized that the LambdaCal.MaxLoadTimeTab was 2000 all the way for
some reason on this 06 base, so basicly the 06 aero base does not go to closed loop except on motor braking when mg/c is <50 ?

changed it to around 600.

Also chaning the LambdaCal.TimeOpenLoop from 2000 to 200 to enable fast enrichment when hitting the pedal.