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Maximum load value on stock ECU?

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Old Mar 2, 2008 | 02:31 PM
  #61  
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lol Aaron, im just kidding
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Old Mar 2, 2008 | 05:38 PM
  #62  
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Here is my average load values in map tracer EVOScan 2.1.....

I like this new feature it works really well and makes it easy to see where you need to make changes!!

25psi 93 octane pump gas, 48 deg. F, 40% Humidity:



If the load values keep going up like this I am going to run out of scaling ideas to get more resolution on these maps....

~Zach
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Old Mar 2, 2008 | 05:49 PM
  #63  
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357 load with a stock 9 turbo, on a 2.3L with 25psi? What max MAF HZ?

Something odd there. I'm wondering if your MAFT Translator is doing something odd? I was tuning a GT35R with a 2.3L and a cosworth head that wasn't even hitting those loads at 26psi:

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Old Mar 2, 2008 | 06:00 PM
  #64  
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Originally Posted by razorlab
357 load with a stock 9 turbo, on a 2.3L with 25psi? What max MAF HZ?

Something odd there. I'm wondering if your MAFT Translator is doing something odd? I was tuning a GT35R with a 2.3L and a cosworth head that wasn't even hitting those loads at 26psi:
I am wondering the same thing, I have been trying to figure out where my 2byte airflow bit is at and it has not been found for my 94170014 ROM yet....

Other than the high load values and rescaling my maps the car runs awesome! Torque on the stock 9 turbo is crazy, tires don't like to stay on the ground...

I am also trying to figure out how to rescale my MAF because I believe this is my problem....in my logs my AirFlow (non 2byte) is pegged at: 1593.75 Hz from 3200-7000 RPM, it seems like it goes too high for ECU to calculate it and goes out of range....

Anyone know how to help?

~Zach

Last edited by phenem; Mar 2, 2008 at 06:07 PM.
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Old Mar 2, 2008 | 06:08 PM
  #65  
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Originally Posted by phenem
I am wondering the same thing, I have been trying to figure out where my 2byte airflow bit is at and it has not been found for my 94170014 ROM yet....

Other than the high load values and rescaling my maps the car runs awesome! Torque on the stock 9 turbo is crazy, tires don't like to stay on the ground...

I am also trying to figure out how to rescale my MAF because I believe this is my problem....in my logs my AirFlow (non 2byte) is pegged at: 1593.75 Hz from 3200-7000 RPM, it seems like it goes too high for ECU to calculate it and goes out of range....

Anyone know how to help?

~Zach
Try the 94170008 codes which are 89BA and 89BB for 2byte airflow

Do this to learn how to rescale your MAF:

https://www.evolutionm.net/forums/sh...ht=rescale+maf
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Old Mar 2, 2008 | 06:14 PM
  #66  
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Originally Posted by phenem

I am also trying to figure out how to rescale my MAF because I believe this is my problem....in my logs my AirFlow (non 2byte) is pegged at: 1593.75 Hz from 3200-7000 RPM, it seems like it goes too high for ECU to calculate it and goes out of range....

Anyone know how to help?

~Zach
pegged at 3200? Yea that is not right at all. haha I think those 2byte load values you are logging are incorrect.

Here is that same 2.3L 35R but now on 91 oct @ 23.5psi overlayed with standard 2.0L Evo 9 with stock turbo @ 28psi on 100 oct:



Of course your 2.3L will up the load a ton but not by that much.
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Old Mar 2, 2008 | 06:21 PM
  #67  
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Originally Posted by Jack_of_Trades
Try the 94170008 codes which are 89BA and 89BB for 2byte airflow

Do this to learn how to rescale your MAF:

https://www.evolutionm.net/forums/sh...ht=rescale+maf
Thats what I needed, I was going to try the ones from 008 but I didn't get a chance to today.

This is what I needed though, thanks! I will give it a try...

~Zach
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Old Mar 2, 2008 | 07:39 PM
  #68  
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Doesnt MAFT have a VE table like MAFT Pro to mess around with? If it doesnt I am sure that a rescale would quickly fix the load overshoot.
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Old Mar 2, 2008 | 07:44 PM
  #69  
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Originally Posted by Jack_of_Trades
Ehtanol is NOT a good fuel to have sitting in your tank for long periods of time.
I agree only because its hygroscopic and water in my fuel is not what I want. Ethanol isnt corrosive like methanol though. I plan on only keeping enough in it per day to keep me having a good time and pump the rest out if its gonna sit.

Aaron
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Old Mar 2, 2008 | 07:50 PM
  #70  
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From: Central PA
Originally Posted by JohnBradley
Doesnt MAFT have a VE table like MAFT Pro to mess around with? If it doesnt I am sure that a rescale would quickly fix the load overshoot.
No you cannot change the VE table on the MAFT Trans.....I am going to take some logs then adjust my MAF scaling later and see what happens....

~Zach
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Old Mar 2, 2008 | 07:59 PM
  #71  
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Originally Posted by JohnBradley
Doesnt MAFT have a VE table like MAFT Pro to mess around with? If it doesnt I am sure that a rescale would quickly fix the load overshoot.
No and its and option on the PRO.
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Old Mar 3, 2008 | 12:55 PM
  #72  
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Originally Posted by TTP Engineering
No and its and option on the PRO.

With TunerProRT software right? I have that already with my MAFT Pro, the EBC solenoid setup, a 5 bar (only cause I got it free...a 3 or 4 bar is more what I will need I am sure) and then the destructions. Its all gonna go in this week on vacation...the only way I figured I could get it done and started on a retune for race season.

Aaron
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Old Mar 3, 2008 | 01:27 PM
  #73  
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guys the loads i posted aren't mine, they are the fq 360's map...

anyway, there's my question:

when i enter my desired load using ecuflash, does the ecu uses the 2-byte load and try to adjust wgdc accordingly or does it use "ecu calculated loads" ??

in case it uses calculated loads, then i'll have to boost the values in order to get my desired 2-byte load numbers, since 2-byte load is usually a bit less than ecu calculated load...


Rgds+
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Old Mar 3, 2008 | 01:38 PM
  #74  
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Originally Posted by EE
guys the loads i posted aren't mine, they are the fq 360's map...

anyway, there's my question:

when i enter my desired load using ecuflash, does the ecu uses the 2-byte load and try to adjust wgdc accordingly or does it use "ecu calculated loads" ??

in case it uses calculated loads, then i'll have to boost the values in order to get my desired 2-byte load numbers, since 2-byte load is usually a bit less than ecu calculated load...


Rgds+
It follows it's own load which can differ from fuel or timing 2 byte load, and is very dependent on air temp. I've found changing the boost to follow normal 2byte load makes it much more consistant.

See this thread: https://www.evolutionm.net/forums/sh...d.php?t=288408
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Old Mar 3, 2008 | 02:01 PM
  #75  
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thx, i already know abt this thread, but still having some issues controllling boost based on load (mainly boost spike)...

im thinking of buying an eboost controler, i think i consumed more money on gas trying to tune boost than its price hehehe


anyway, thx again, i'll try to boost up my desired load numbers, as i was adjusting them thinking they are 2-byte load...


Cheers
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