Welcome to the North American Subaru Impreza Owners Club Tuesday September 16, 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 05-26-2002, 06:48 PM   #1
N/A
Scooby Specialist
 
Member#: 133
Join Date: Aug 1999
Location: Maryland (not by choice)
Vehicle:
2003 Echo-daily car
silver

Default 99RS with a different MAF

Not sure if this has been discussed too much but has anybody used a Apexi AFC to change out the stock MAF on a 99RS with something less likely to break from a different car? I was thinking of dropping the stock MAF to use something else since I don't want to replace the OEM unit that often. So who's done it and did you have any problems getting it to work?
* Registered users of the site do not see these ads.
N/A is offline   Reply With Quote
Old 05-26-2002, 09:07 PM   #2
Impreza Rider
Scooby Specialist
 
Member#: 756
Join Date: Jan 2000
Chapter/Region: MAIC
Location: Ashburn, Va
Vehicle:
2003 Legacy L wagon
2009 Kawasaki C14

Default

There's someone running around with a Mustang Cobra MAF. I remember reading about it awhile ago. RalliSpec did the conversion if I'm not mistaken.

I don't know anything about it though...I'm sure a search would
turn it up

Oh...almost forgot. If you check the N/A forum, there was a thread about replacing just the sensor itself on the 99's. It was $45 compared to the $200 for a new MAF.
Impreza Rider is offline   Reply With Quote
Old 05-26-2002, 09:27 PM   #3
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

8Complex is offline   Reply With Quote
Old 05-26-2002, 09:55 PM   #4
99WNX
Scooby Specialist
 
Member#: 14174
Join Date: Jan 2002
Chapter/Region: TXIC
Location: in das p00per
Vehicle:
03 Cobra 836 rwhp
99 Lightning 453 rwhp

Post

$45 was the "Hook Up" price. Got mine from dealer for $68(still better than 300)
99WNX is offline   Reply With Quote
Old 05-26-2002, 09:56 PM   #5
Graham
Scooby Specialist
 
Member#: 11931
Join Date: Nov 2001
Location: Winter Park, FL/ SMU @ Dallas,
Vehicle:
2001 2.5 RS Turbo
257/FMIC/T3-T04S

Default

Rich L is the guy you are thinking of with the Cobra MAF.

Graham
Graham is offline   Reply With Quote
Old 05-26-2002, 10:14 PM   #6
Aphex
Scooby Specialist
 
Member#: 146
Join Date: Aug 1999
Location: Wahcheeta, KS
Vehicle:
'05 Legacy GT
Silver

Default

that sensor is $46 from subaruparts, I've got to get a new one myself since mine just went bad today, too bad it's a freaking holday weekend so I gotta wait even longer just to order it, and I need it here ASAP so who knows how much the dealer is gonna rape me on costs.
Aphex is offline   Reply With Quote
Old 05-26-2002, 11:46 PM   #7
N/A
Scooby Specialist
 
Member#: 133
Join Date: Aug 1999
Location: Maryland (not by choice)
Vehicle:
2003 Echo-daily car
silver

Default

Reason I ask is because I have 3 Z32 MAF's that I was considering keeping if I could convert over to the Z32 setup.
N/A is offline   Reply With Quote
Old 05-27-2002, 01:11 AM   #8
RageHardIntoTheBendies
Scooby Specialist
 
Member#: 1532
Join Date: May 2000
Location: Wnnipeg, MB, Canada
Vehicle:
1999 RS, Silverthorn
www.zucru.com

Default

The Z32 MAF should work, I'm actually looking for one so I can make up a harness and "Translator" which will basically be 2 Pots to trim the voltage as the Z32 housing is larger.

The Subaru MAF's have an almost identical voltage curve to the s13 Sylivia (or 98 RS), just leave the 5vTPS connection un-connected. the housings are the same size so only a little trim would be needed.

If your feeling genorous you can ship me one of those MAF's and I'll try it out for ya
RageHardIntoTheBendies is offline   Reply With Quote
Old 05-27-2002, 01:26 AM   #9
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

The circuit for the fuel trim pot can be had in this article -- http://www.autospeed.com/A_0008/page1.html

I suggest going to Radio Shack and picking up a couple of small breadboards and some of the smaller board-mounted pot's instead of the large types. Makes it easier to adjust them finely, plus it makes it easier to glue them when they are in place.

Also, I have dealt with a 10k on a map signal before, and found that the adjustment was just WAY too touchy, so I would suggest trying 4.7k pot's instead.
8Complex is offline   Reply With Quote
Old 05-27-2002, 01:43 AM   #10
RageHardIntoTheBendies
Scooby Specialist
 
Member#: 1532
Join Date: May 2000
Location: Wnnipeg, MB, Canada
Vehicle:
1999 RS, Silverthorn
www.zucru.com

Default

Thanks 8 did you ever try that?
Yes for sure get a 4.7k Pot, I have been advised to find a Pot with at least a 1.5w rating, the best radio shack has is 0.5w 5k, or a 1w 10k.
RageHardIntoTheBendies is offline   Reply With Quote
Old 05-27-2002, 12:05 PM   #11
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

Well, we've got a 10k (1/2 watt? not sure...) pot on my friend's Legacy turbo cutting the MAP signal down a touch to get it to run up to 16psi without fuel cut. It works great, and the thing isn't leaning out or detonating or anything. I was planning on running a set of pot's to adjust my fuel after I drop in 440's, but I have found a setup that will work much better overall - I am going to test the unit and then report about soon... I should have it in the next few weeks. Just keep your eyes peeled.
8Complex is offline   Reply With Quote
Old 05-28-2002, 09:23 PM   #12
Rich L
Scooby Specialist
 
Member#: 961
Join Date: Feb 2000
Chapter/Region: Tri-State
Location: near Atco(NJ) 13.566@100.64-
Vehicle:
1999 RS-Tw/ CobraMAF
Custom Rallispec kit/IC#1

Default

FWIW: the Cobra MAF option is awesome, but not the cheapest choice because of the fuel controller. Im glad I did it.

Also. As far as I know. The cheapest thing that could be done is "swaping out" the film element for something more sturdy.
But who knows what would work.

According to what the guy at www.splitsec.com he says that they swap out VW turbo Beatle mafs all the time. Its cheap to do.

Someone might want to look into what would actually work for the MY99s via trial and error... or maybe give them a call.
Rich L 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
3in custom cai piping with perrin big maf or perrin blow thru with big maf Stiguy34685 AccessPort 5 01-29-2009 09:57 PM
225-50-16 on 99RS with rubbing issues and rear tires Robin2 Brakes, Steering & Suspension 4 05-27-2002 01:35 PM
99RS with WRX and GC8 RS rims (pics) Robin2 Canada Region Forum 7 03-04-2002 03:16 PM
99RS with WRX and GC8 RS rims (pics) Robin2 Member's Car Gallery 5 03-03-2002 01:07 PM
Got a 99RS with turbo? I need your HELP!!! Pipercub Normally Aspirated Powertrain 13 02-14-2001 01:13 PM


All times are GMT -4. The time now is 04:29 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.