Welcome to the North American Subaru Impreza Owners Club Friday April 18, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated with bolt-on Forced Induction Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 08-16-2005, 02:33 PM   #1
subachad
Scooby Specialist
 
Member#: 8488
Join Date: Jul 2001
Location: Sin City
Vehicle:
1993 Impreza GCStyle
Teal

Default Attn: E-Manage users

Can you guys email me your recorded run files? Like 0-70mph power runs or something similar?

I'm most interested in comparing my air flow voltage readings to others. I'm currently maxing at 4.19 though it's usually closer to 4.1. This is with my 2.0 EJ20G with 2.2 NA heads, delta cams, 1.8 intake, 12psi. I'm about to install a 2.2 intake manifold, I'm hoping that will help out in the power delivery. I notice the runners are larger and don't have as sharp a bend in them.

Chad
subachad@uniquemotorsports.com
* Registered users of the site do not see these ads.
subachad is offline   Reply With Quote
Old 08-16-2005, 10:00 PM   #2
Unsung Boxer
Scooby Specialist
 
Member#: 37196
Join Date: May 2003
Location: WA state
Default

dude, start a database on your site.. I want to get back into tuning.

btw, remind me to chat w/ you soon about those 360cc injectors.
-Jake
Unsung Boxer is offline   Reply With Quote
Old 08-17-2005, 07:31 PM   #3
ai42
Scooby Specialist
 
Member#: 71348
Join Date: Sep 2004
Chapter/Region: TXIC
Location: Frisco, TX
Vehicle:
1999 EJ207 RS.TI
VW Golf TDI 40mpg baby!

Default

My setup is totally diffrent to your setup of course. But I do have the pressure sensor so I can give you some good data showing MAF voltage vs mesaured pressure (you will have to pull the pressure sensor voltage vs. psi graph off of that emanage yahoo group).

Also what MAF are you using?
ai42 is offline   Reply With Quote
Old 08-18-2005, 01:01 AM   #4
subachad
Scooby Specialist
 
Member#: 8488
Join Date: Jul 2001
Location: Sin City
Vehicle:
1993 Impreza GCStyle
Teal

Default

I'm using the stock 93 MAF. I just want to know what voltage people are maxing out at. I know Unsung maxes his all the way to 5v and it feels super strong when it gets up there. Without boost I'm in the low to mid 3V area.

Unsung, what do you want me to setup on my site info wise? Are you thinking of a spreadsheet or what?

Chad
subachad is offline   Reply With Quote
Old 08-18-2005, 09:51 AM   #5
ExecNav
Scooby Specialist
 
Member#: 30554
Join Date: Nov 2002
Chapter/Region: South East
Location: Ellijay, GA
Vehicle:
08 LGT Spec.B
01 Impreza RS-T

Default

Sent.

-Brett
ExecNav is offline   Reply With Quote
Old 08-18-2005, 03:27 PM   #6
Jaxx
NASIOC Supporter
 
Member#: 177
Join Date: Aug 1999
Chapter/Region: NWIC
Location: Boise,Idaho,USA
Vehicle:
The 93 Imp W/EJ20K
flat black

Default

hmm might be time to up to a LegacyT maf (guessing its bigger)
Jaxx is offline   Reply With Quote
Old 08-19-2005, 12:26 PM   #7
Hitokiri
Scooby Specialist
 
Member#: 2604
Join Date: Oct 2000
Chapter/Region: NESIC
Location: CA
Vehicle:
1999 2.5RSt
RBP

Default

i am making 4.4v on my car / MAF at 9psi
Hitokiri is offline   Reply With Quote
Old 08-19-2005, 12:28 PM   #8
Hitokiri
Scooby Specialist
 
Member#: 2604
Join Date: Oct 2000
Chapter/Region: NESIC
Location: CA
Vehicle:
1999 2.5RSt
RBP

Default

I am working on eliminating my MAF with the Emanage Ultimate. Do do so I will be defineing the MAF voltage in a 16x 16 table of boost x RPM. I am taking datalogs and populating my map gradually as I get more. When I am done and have it working I will post the map for you.
Hitokiri is offline   Reply With Quote
Old 08-19-2005, 12:33 PM   #9
Hitokiri
Scooby Specialist
 
Member#: 2604
Join Date: Oct 2000
Chapter/Region: NESIC
Location: CA
Vehicle:
1999 2.5RSt
RBP

Default

Jaxx - the LegT MAF is actually probobly SMALLER considerably.

I worked on tuning one with an emanage and WB. We were pegging the MAF before 4700 RPM and ~11psi boost. It is my guess that they used the same MAF as the NA cars. It almost pegs at redline and ~7-8psi boost.

look here: http://bbs.legacycentral.org/viewtop...ight=zeitronix
Hitokiri is offline   Reply With Quote
Old 08-19-2005, 02:10 PM   #10
subachad
Scooby Specialist
 
Member#: 8488
Join Date: Jul 2001
Location: Sin City
Vehicle:
1993 Impreza GCStyle
Teal

Default

Quote:
Originally Posted by Hitokiri
i am making 4.4v on my car / MAF at 9psi

Can you email me your current map at a power run? I'd be curious to see how your map looks and what kind of numbers you are logging.
subachad is offline   Reply With Quote
Old 08-19-2005, 06:11 PM   #11
Hitokiri
Scooby Specialist
 
Member#: 2604
Join Date: Oct 2000
Chapter/Region: NESIC
Location: CA
Vehicle:
1999 2.5RSt
RBP

Default

actually I am not tuned up to the level I was before. I just looked at an old log hit actually 4.45 maf I could send you that log. And that was at much less than 9psi. I need to find the power adaptor for my old laptop to get the datalogs from the emanage at 9-10psi.

I just switched to the ultimate, and I am now doing my fuel compensation to the output of the ecu entirely. IE no MAF correction to the stock ecu at all. I am having troubles though because the ecu seems to hit a wall of fuel at 5500 rpms. I have tried pulling way more fuel over that but it doesn't seem to help. I am thinking that the ecu has a fuel wall feature triggered from a MAF level. it seems to happen around 4V maf reguardless of boost and at about 5500 rpm, I am going to try clamping at 4v and see if I get past the fuel wall. I am not limiting the MAP input to the ecu either. (MY99 RSs have a boost sensor stock that reads very accurately in boost!) But I didn't have the fuel wall issues before when I was using MAF correction such that the ecu would never see more than 4v on the maf. Now that it sees the real load its dumping fuel it seems instantly at 5500 rpm or seemingly at 4v MAF.

email me at hydraedit@gamil.com
Hitokiri is offline   Reply With Quote
Old 08-19-2005, 10:56 PM   #12
Hitokiri
Scooby Specialist
 
Member#: 2604
Join Date: Oct 2000
Chapter/Region: NESIC
Location: CA
Vehicle:
1999 2.5RSt
RBP

Default

update:

My fuel wall issue was the ecu hitting 100% duty cycle on the injectors. It seems the ultimate's algorithm that subtracts from the IDC falls on its face if the injectors go wide open. I clamped that MAF so the EC never sees more that 4v and I was able to tune it nice and flat after that.
Hitokiri is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
ATTN: Engine management forum Scooby South Engine Management & Tuning 63 03-08-2006 09:49 PM
E-manage users,"I got a questchin" 2slofouru Engine Management & Tuning 0 08-26-2005 07:01 PM
e-manage user!!!!!! AntonioS Normally Aspirated with bolt-on Forced Induction Powertrain 5 11-10-2003 09:44 PM
E-manage Users OKRS25 Normally Aspirated with bolt-on Forced Induction Powertrain 4 11-04-2003 09:03 PM
ATTN: Adobe Premiere users UnderAgeEnthusiast General Forum Archive 1 01-27-2001 10:12 AM


All times are GMT -4. The time now is 03:13 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.