Notices
Evo X Engine Management / Tuning Forums Discuss the major engine management systems.

Getting Best MPG during Cruise

Thread Tools
 
Search this Thread
 
Old Jan 7, 2010 | 01:09 PM
  #226  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
Originally Posted by Clipse3GT
I'm sure you can tweak your MIVEC to make the spool up a bit up higher... but what's the fun in that. This car is a blast with all the mid-range it has.
Dude, i'll be honest, yeah it's got a nice mid range, but without a protune, like I said before it's not as fast as my car was stock with the Mellon tune... it doesn't pull to redline like before it just isn't as fast.... I just want to get the mileage back up until I can get some money to have Chris retune it, but I need a wideband as well, so that's going to be a while.
Reply
Old Jan 7, 2010 | 01:19 PM
  #227  
Clipse3GT's Avatar
Account Disabled
iTrader: (10)
 
Joined: Dec 2005
Posts: 2,185
Likes: 2
From: Cleveland, OH
Originally Posted by Methodical4u
Dude, i'll be honest, yeah it's got a nice mid range, but without a protune, like I said before it's not as fast as my car was stock with the Mellon tune... it doesn't pull to redline like before it just isn't as fast.... I just want to get the mileage back up until I can get some money to have Chris retune it, but I need a wideband as well, so that's going to be a while.
So what are you using now to tune ECUFLASH?

Do you have your COBB protune?
Reply
Old Jan 7, 2010 | 06:36 PM
  #228  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
Originally Posted by Clipse3GT
So what are you using now to tune ECUFLASH?

Do you have your COBB protune?
no, i'm using the AP with the ATR software. I have my pro-tune stored yes, but I can't flash it onto the car because it was made for no mods at all and i'm not nearly educated enough in tuning to go screwing with that... plus like I said... I have no wideband.
Reply
Old Jan 8, 2010 | 03:49 PM
  #229  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
went for a ride today and down the highway on a very light fuel load I managed to get 25.6 or so... there are some up's and downs on the highway, but I was happier with that... thing is, I had to drop my speed somewhere around 56-58 yet at 62 or more the mileage always hangs right at 22.8-23.5... why would that small amount make a difference? or is it because of the light fuel load?
Reply
Old Jan 8, 2010 | 08:22 PM
  #230  
Golden's Avatar
Evolved Member
iTrader: (1)
 
Joined: Nov 2009
Posts: 1,456
Likes: 0
From: Omaha, NE
Its because your rpm's are climbing to the point where the turbo wants to spool.
Reply
Old Jan 9, 2010 | 12:40 PM
  #231  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
Originally Posted by Methodical4u
ohhh, I knew it had to be wastegate something... if that were to be adjusted, would that bring the mileage back up.. but what would it do with the power? Change the power band? Lower overall power? Something else?
hey guys... I didn't get any replys on this post, but I was really curious about it... any ideas?
Reply
Old Jan 9, 2010 | 03:53 PM
  #232  
Golden's Avatar
Evolved Member
iTrader: (1)
 
Joined: Nov 2009
Posts: 1,456
Likes: 0
From: Omaha, NE
Is the wastegate table a single column table or it a one of those rpm / load tables? If its the latter, then yes I would change it. If its the single column one, then no, because it will affect your full throttle accel.
Reply
Old Jan 9, 2010 | 06:06 PM
  #233  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
Originally Posted by Golden
Is the wastegate table a single column table or it a one of those rpm / load tables? If its the latter, then yes I would change it. If its the single column one, then no, because it will affect your full throttle accel.
oh hell man, i'd have to look at the ATR software... and even if it is 2, i'd have no clue what to change anything to... lol any advice? You can PM me so i'm not highjacking hiboost's thread.

Ok so on the folder list I have boost tables, Coarse WG tables and then Fine WG tables... here's a screenshot with the "target boost Load table B WOT...


Last edited by Methodical4u; Jan 9, 2010 at 07:46 PM.
Reply
Old Jan 10, 2010 | 10:37 PM
  #234  
Brokenevo's Avatar
Evolved Member
iTrader: (18)
 
Joined: Aug 2008
Posts: 908
Likes: 0
From: Abilene Texas
i understand nothing about tuning, but seems you got a lot under control for sure.
Reply
Old Jan 11, 2010 | 05:49 AM
  #235  
Hiboost's Avatar
Thread Starter
Evolved Member
iTrader: (9)
 
Joined: Apr 2005
Posts: 3,222
Likes: 8
From: Rochester, NY
Originally Posted by Methodical4u
oh hell man, i'd have to look at the ATR software... and even if it is 2, i'd have no clue what to change anything to... lol any advice? You can PM me so i'm not highjacking hiboost's thread.

Ok so on the folder list I have boost tables, Coarse WG tables and then Fine WG tables... here's a screenshot with the "target boost Load table B WOT...
No worries on the thread, we are all trying to help each other with getting decent MPG with various methods. One thing you can do is datalog what your typical TPS is when cruising. Likely this will be 10-20%. You will notice that at the 10% TPS column its only targeting 32% load and at 20% TPS it's already trying to target higher load and spool the turbo a bit, not quite to 100% load and boost but never the less it's going from vacuum and heading towards boost. If you are hanging out at the 15% TPS range while cruising on average you may be able to change the 20% TPS column to 32% target load and see how that effects the turbo at that TPS range. The trouble is these tables likely won't really effect spool since the turbo isn't really going to be slowed down unless it's somewhere near full boost or at least 13 psi or base WG pressure.

The other bet is like I PM'd you, reduce the Mivec tables at the 0-120% load area to be the same or close to stock favoring less intake advance and less exhaust retard should reduce the turbo's tendancy to spool until you get into boost over about 5 psi.
Reply
Old Jan 11, 2010 | 02:52 PM
  #236  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
Originally Posted by Hiboost
No worries on the thread, we are all trying to help each other with getting decent MPG with various methods. One thing you can do is datalog what your typical TPS is when cruising. Likely this will be 10-20%. You will notice that at the 10% TPS column its only targeting 32% load and at 20% TPS it's already trying to target higher load and spool the turbo a bit, not quite to 100% load and boost but never the less it's going from vacuum and heading towards boost. If you are hanging out at the 15% TPS range while cruising on average you may be able to change the 20% TPS column to 32% target load and see how that effects the turbo at that TPS range. The trouble is these tables likely won't really effect spool since the turbo isn't really going to be slowed down unless it's somewhere near full boost or at least 13 psi or base WG pressure.

The other bet is like I PM'd you, reduce the Mivec tables at the 0-120% load area to be the same or close to stock favoring less intake advance and less exhaust retard should reduce the turbo's tendancy to spool until you get into boost over about 5 psi.

I'll take a look at those MIVEC tables later on and see if I can figure out what to do. I mean, like my other econ map thread, I don't care if the thing drives like a corrola, I would just like 1 map to be able to switch to that I can get excellent mileage, if I need to go fast, I stop, flash it to the faster map on my AP and i'm gone lol.
Reply
Old Jan 11, 2010 | 09:58 PM
  #237  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
HiBoost... would I be better off to use the stock map and adjust the MIVEC tables and timing from them? or should I stay at stage 2 and do this? Keep in mind the boost pill is removed, so I don't know how that would work on the stock map or if it would throw codes.
Reply
Old Jan 12, 2010 | 08:30 AM
  #238  
Hiboost's Avatar
Thread Starter
Evolved Member
iTrader: (9)
 
Joined: Apr 2005
Posts: 3,222
Likes: 8
From: Rochester, NY
With EcuFlash it's childs play to copy and paste from a stock ROM in the 0-120% load fields to your modified one. You can then smooth the transition from 100% to 140% if you want as well. I've never changed parameters with the AP so don't know how easy or difficult it would be. There are stock maps posted around just do a MIVEC search in the Evo X sections.
Reply
Old Jan 12, 2010 | 12:23 PM
  #239  
Methodical4u's Avatar
Evolved Member
iTrader: (9)
 
Joined: Jul 2006
Posts: 2,815
Likes: 1
From: Maryland
Originally Posted by Hiboost
With EcuFlash it's childs play to copy and paste from a stock ROM in the 0-120% load fields to your modified one. You can then smooth the transition from 100% to 140% if you want as well. I've never changed parameters with the AP so don't know how easy or difficult it would be. There are stock maps posted around just do a MIVEC search in the Evo X sections.
I actually don't have a "mivec" table.. I have camshaft phasing, ignition, limits table, etc. is the CP the one I should be looking at? If so, i'll copy the numbers from the stock on the 0-120 load... what RPM's should I go up to?

Last edited by Methodical4u; Jan 12, 2010 at 12:39 PM.
Reply
Old Jan 12, 2010 | 02:26 PM
  #240  
Hiboost's Avatar
Thread Starter
Evolved Member
iTrader: (9)
 
Joined: Apr 2005
Posts: 3,222
Likes: 8
From: Rochester, NY
Probably the entire rev range but since you are primarily worried about cruise MPG the 2000-4000 range will be where it will actually make a difference. Not clue why the AP has to label stuff all differently to be cool... it's probably the Camshaft Phasing tables. There are two intake and two exhaust on the EcuFlash setup where #1 is warmup and #2 is normal temp. Hopefully it won't be reversed or something wierd.
Reply



All times are GMT -7. The time now is 07:39 AM.