NefMoto

 running 80lb injectors and e85

what doesn't make sense to me is that with no n75 i hit over 25psi , installed a brand new n75 and have it venting to atmosphere to make sure it can bleed enough off and i still cant hit requested
performed boost leak and no leaks . i dont know why my wastegate duty cycle is doing what its doing and when it goes to full close, i cant hit requested

(http://www.audizine.com/gallery/data/500/1415.jpg)
(http://www.audizine.com/gallery/data/500/medium/1214.jpg)

http://www.audizine.com/gallery/showfull.php?photo=78394 (http://www.audizine.com/gallery/showfull.php?photo=78394)

Bc your WGDC is low. Your DIMX is wrong.

What a bizarre tune.

?????   We need more info .  What size engine ? What size turbo . What is the air fuel. Boost leak ? Have you smoke tested the intake and intercooler.  ?  What size is the X hast manifold and the down pipe.  ????


Ps... if you are going ask for help with your car we need to know if it is stock or modified

Big problem with your WG requested map.  A very big problem..... !


Lee

It looks like the goal was to delay torque onset.

OP:

Stock rods?

sorry for not enough info

s4 , 2.7 , awe exhaust manifolds, k04's, awe downpipes , awe ic's ,apr bipipe

(http://i243.photobucket.com/albums/ff314/auditechs4/13_zpsd8e1ef67.jpg)

i was using a stock dimx and it was building slow so i uses tonys stg 3 tune dimx and it didnt change so it has used both

should i max the last column? 95 all the way down?

attached the log

would that work ?

Changed the last column of dimx to 95 across the board and now were running this - so much better

Why is your P result zero until 4500 rpm?

LOL

I can take one look and answer that question.

He doesn't know.

huh , lol p result zero . not sure what you mean

Exactly. Why are you using a tune you don't know anything about?

Please, do not try to fix other people's tunes. Do some research and do it yourself from scratch. Make sure you know what EVERY change does.

im not using a tune i don't know anything about , i don't know a whole lot about tuning either. That's why i'm here .

Go through each map changed and explain what they each do, why they need to be changed, and what the changes are meant to do.

Once you do that, you'll know what is wrong with the PID output..

ive been trying , i just found what you were talking about in the log. That log was from a friend using me7logger . i have been using visualme7logger and using the mark-p.cfg file.I dont have those logged when im doing my logs.

I don't know what the p-result should look like either. ive been using a stock map , a stage 2 map (currently on my stg 2 car and running great) and tony's stg 3 map  for references.
seeing what was changed and trying to go from there. I dont have a computer backround which it seems like alot of you do , hands on learner over here

I'm going to set all my boost maps back to stock and start over. My fueling is pretty spot on right now from what I can tell (wideband) and e85 timing map is good so far - haven't pushed it to much . kinda stopped when I tried to get boost under control .

Good stuff. Get the car running right at std pressure levels using e85. Once youre happy, move onto the pid controller for the n75 in conjunction with upping requested load.

that's the plan now. only problem is i've read the boost portion of the tuning wiki many times and not gettnig anywhere :) maybe the 20th time ill get it

for k04's the rs4 map has a better base correct . If i went through and swapped over ll the rs4 boost maps would that work for a better place to start?

No. RS4 uses different PID control.

got it . well time to start over  , thanks

ok so everything was set back to stock and im starting my changes

http://nefariousmotorsports.com/forum/index.php?topic=1375.0
using berTTos kfmiop tool i changed my kfmirl and kfmiop - so load and optimal torque map have been changed

http://nefariousmotorsports.com/forum/index.php?topic=6765.0
and using what ddillinger said here i changed the axis of my kfmiop map accordingly

So now i need a ldrxn for k04's , this isn't my daily so aggressive is cool . How is this looking so far ? Where should i go next

? should i flash and lag ? or is there something else i need to do first that im missing

you will not hit 229 load at 1500 rpm... start with scaling a stock profile, then analyse the logs and see where you can ask for more. you need to use realistic values here....

finding good boost profile imags isnt easy they are mostly of crap lol , ill go through my most recent log and try to match it

thanks for the heads up , going from other files that i have they request alot more then the turbo can make , guessing it to build boost as fast as possible. ill change it though

Did you even bother reading the tuning wiki?

http://s4wiki.com/wiki/Tuning#Positive_deviation

Has anyone ever gotten positive deviation from excessively high LDRXN without a boost leak and a properly scaled MAF?

i haven't on either of my cars  , and yes nyet i have read the wiki many times and again it confuses me. i went through thee whole stage 1 project many times as well but there isnt much other then raising ldrxn for more boost .

You don't get it .... there is a lot more you need to know about tuning....   pleases don't take this  negative but you are not listening to the fine people on this forum.

Do me a favor and get a 1.8th tune or 2.7th tune with the propper Xdf  file and look at the  " boost " maps in that tune for a reference . Look and study them ! 

YOU CAN NOT ASK FOR FULL BOOST AT 1500 RPM. you need to make the mapping liner for a nice clean acceleration.  You don't what the engine to run like it is listening to dubstep. Think about it !

Lee

109.99   120.00   132.75   145.81   158.86   200.35   202.34   201.97   200.77   199.93   198.31   196.11

I understand what your saying lee , i have changed it . I got that ldrxn from the Tony Nefmoto STG3 tune
i don't remember anyone telling tony he did it wrong and that he had a bad starting point. I read one thing and see another in tunes that were on here.
Just trying to make sense of it all

ahh pretty close to what dd posted , i tried to copy some dyno boost curves

I have. That said, there is a sweet spot. You don't want it following your actual boost curve either; you want to make sure that during spool there is enough lde to keep the p contribution high enough to generate 95% WGDC all by itself.

yeah i get that , asking for a bit more then what it can make to build boost fast

You will not buld boost faster than your turbos can make. The software is limited to the physical  abilities of the turbos themselfs . You can play with cam timing and ignition timing.  If you are not satisfied with that you can buy a M 90 - 110 Eaton supercgarger = $$$$$$$$  or do nitrous .....good luck

Lee

I understand how turbos work. I was only stating what nyet already stated. By asking above what the make you'll keep the wastegates closed that's all

There are different theories about making turbos spool faster.
One is too go richer at spool, so you get unburned fuel into your exhaust where it ignites and spoils the turbine faster or, try with more timing at spool.
Try both and log, see what works for you.

i don't need them to spool faster :) just need to get the tuning of boost maps down , i'm a beginner , never been good at reading and implementing , much better at seeing it done and doing it .so its a slow learning process for me. Been a master guild audi tech for 8 years now . only tuning i did was on my power fc on my sr'd 240sx and its pretty damn basic compared to this lol. timing has been pretty straight forward so far and fueling seem to be good on both my e85 tune and 91. Learned some good stuff in the stage 1 project . im trying to learn all of this because i'm building a single turbo s4 and i'd like to tune it my self but i probably wont be able to . Thought i try though. Trying to do as much of it on my own as i can

http://www.audizine.com/forum/showthread.php/614417-AuditechS4-s-Single-turbo-build-The-DIY-way
(http://i243.photobucket.com/albums/ff314/auditechs4/20141210_174434_zpsnmlcpm64.jpg)

Beautiful!!

Yeah I'm pretty excited to finish the engine build next week. Just got the valve covers back from powdecoating and got the main studs installed. Just need to finish the modifying the upper oil pan

Watch out with VC powder coating on the inside . The powder coating will slowly peel off getting in the  oil pump thus killing the engine. I have seen it before.

Is your VC coated on the inside ?

Lee

no

Went to a dyno day and I'm happy
452hp/512tq

For reference a 370z with exhaus did 276hp,don't remember tq