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Author Topic: Boost builds slow log inside  (Read 29173 times)
tnel20
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« Reply #30 on: December 26, 2014, 08:36:51 PM »

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
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nyet
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« Reply #31 on: December 27, 2014, 01:48:31 AM »

Did you even bother reading the tuning wiki?

http://s4wiki.com/wiki/Tuning#Positive_deviation
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ddillenger
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« Reply #32 on: December 27, 2014, 07:04:38 AM »

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?
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tnel20
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« Reply #33 on: December 27, 2014, 09:36:37 AM »

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 .
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10101011
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« Reply #34 on: December 27, 2014, 10:07:20 AM »

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

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ddillenger
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« Reply #35 on: December 27, 2014, 10:10:23 AM »

109.99   120.00   132.75   145.81   158.86   200.35   202.34   201.97   200.77   199.93   198.31   196.11
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tnel20
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« Reply #36 on: December 27, 2014, 10:14:30 AM »

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
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tnel20
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« Reply #37 on: December 27, 2014, 10:16:15 AM »

ahh pretty close to what dd posted , i tried to copy some dyno boost curves
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nyet
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« Reply #38 on: December 27, 2014, 12:28:15 PM »

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


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.
« Last Edit: December 27, 2014, 12:34:44 PM by nyet » Logged

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tnel20
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« Reply #39 on: December 27, 2014, 01:48:59 PM »

yeah i get that , asking for a bit more then what it can make to build boost fast
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« Reply #40 on: December 27, 2014, 02:49:25 PM »

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
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tnel20
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« Reply #41 on: December 27, 2014, 04:14:48 PM »

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
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« Reply #42 on: December 28, 2014, 03:01:48 AM »

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.
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tnel20
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« Reply #43 on: December 28, 2014, 11:09:22 AM »

i don't need them to spool faster Smiley 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
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« Reply #44 on: December 28, 2014, 11:31:39 AM »

Beautiful!!
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