i have a problem with fuel or air? - Ford Mustang Forums : Corral.net Mustang Forum
 
LinkBack Thread Tools Display Modes
post #1 of 11 Old 05-13-2009, 05:37 PM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: May 2009
Location: oak grove, ky
Posts: 40
i have a problem with fuel or air?

i just recently turbocharged my 94 gt stock internals, heads, injectors(i know) mass air meter(i know, again), cobra upper and lower intakes and pulleys and i just as of 2 days ago installed a walbro 255 fuel pump(which isn't the one for my year car, GSS342 96-97 cobra) but it seems fine. ok now to the point when it spools up and comes on boost if i push in on the throttle a little more it will pretty mush just give out like its not getting enough fuel or air, not too sure i'm extremely new to the whole boost thing and on a budget so i buying a piece at a time i already have the 42# green tops(new) and all thats left is a good maf and fuel pressure reg. and of course the tune if anyone can give me some good advice and maybe a good deal on some parts it would be greatly appreciated thanx in advance for taking time to read this novel

joedaddy4 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 05-14-2009, 12:51 PM
Registered User
 
Trader Feedback: (0)
Join Date: Aug 2007
Location: Oregon
Posts: 106
I'm new to the whole boost thing as well, but you are probably running out of injector. If you put your new injectors meter and get a tune you should notice a world of difference. And for what it's worth I honestly don't think you need an adjustable regulator, as when I had my car dyno tuned they set the pressure back to stock anyway. So I'd buy your meter because you have to have that and install your injectors and see how it goes, then if its still bad or whatever go get it tuned. I'd just skip the regulator as like I say they will probably just set your pressure back to stock when they tune it anyway.


Carb swap in progress...
Scout2232 is offline  
post #3 of 11 Old 05-14-2009, 01:54 PM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: May 2009
Location: oak grove, ky
Posts: 40
ok thanx for the input will do now i just need to find a meter any suggestions?
joedaddy4 is offline  
Sponsored Links
Advertisement
 
post #4 of 11 Old 05-14-2009, 02:02 PM
 
Trader Feedback: (13)
Join Date: Dec 2008
Posts: 630
Quote:
Originally Posted by Scout2232 View Post
I'm new to the whole boost thing as well, but you are probably running out of injector. If you put your new injectors meter and get a tune you should notice a world of difference. And for what it's worth I honestly don't think you need an adjustable regulator, as when I had my car dyno tuned they set the pressure back to stock anyway. So I'd buy your meter because you have to have that and install your injectors and see how it goes, then if its still bad or whatever go get it tuned. I'd just skip the regulator as like I say they will probably just set your pressure back to stock when they tune it anyway.
You definately want a regulator that is 1:1 with boost, your crazy.
ChaseGT is offline  
post #5 of 11 Old 05-14-2009, 02:24 PM
Registered User
 
millhouse's Avatar
 
Trader Feedback: (9)
Join Date: May 2002
Location: Simpsonville, SC
Posts: 3,209
Quote:
Originally Posted by ChaseGT View Post
You definately want a regulator that is 1:1 with boost, your crazy.
The stock regulator is a 1:1 ratio...and if it's not broke. Seriously though, the stocker will work just fine until you find the need to upgrade the rails/lines.

As for the original poster....DO NOT GET INTO BOOST WITHOUT ATLEAST A MAF AND MATCHING INJESTORS OR AN FMU for the 19lb-ers.

Seriously, it doesn't matter "why" it's happening. What matters is you not grenading your entire engine for the sake of getting into boost when you shouldn't.

2016 Ruby Red Mustang GT PP
Prior Cars
1989 Mustang Notch - Twin Turbo - 500RWHP, 1996 Mustang Cobra, 1994 Mustang GT Vert - 408w
millhouse is offline  
post #6 of 11 Old 05-14-2009, 02:34 PM Thread Starter
Registered User
 
Trader Feedback: (0)
Join Date: May 2009
Location: oak grove, ky
Posts: 40
i'm looking to buy a maf now just need a good deal if anyone knows where i could find one it would be greatly appreciated thanx
joedaddy4 is offline  
post #7 of 11 Old 05-14-2009, 02:37 PM
Registered User
 
93gtman's Avatar
 
Trader Feedback: (21)
Join Date: Nov 1999
Location: ny
Posts: 1,863
Get a WIDEBAND you def need it

NY
92 Red Notch 5spd w/ B&G Kit Powered by MS2 V3 running Extra Code-----SOLD!
93gtman is offline  
post #8 of 11 Old 05-16-2009, 03:29 PM
Registered User
 
Trader Feedback: (5)
Join Date: Sep 2005
Location: NC
Posts: 89
You shouldn't even think of boost w/o a wideband. You really need a way to datalog it too, b/c it's about too much to watch your wb meter, fuel psi gauge, boost gauge. while you're driving.
L&StangNC is offline  
post #9 of 11 Old 05-16-2009, 09:02 PM
Registered User
 
Trader Feedback: (1)
Join Date: Apr 2004
Location: home
Posts: 382
If you stock fpr is not broken, don't waste your money on a new one. If you want to tune yourself, look into getting a quarterhorse. You will need some software too (Binary Editor, and possibly eec anaylzer). Then get your wideband, maf, put in injectors and tune.

oh yea


I like near stock turbo'd sn95 5.0s.

1994 Turbo GT
mustangless is offline  
post #10 of 11 Old 05-18-2009, 02:18 AM
Registered User
 
357poweredstang's Avatar
 
Trader Feedback: (17)
Join Date: Feb 2009
Location: Jersey Shore
Posts: 963
so you put injectors in with a stock maf? that right there is a problem...

I would stay away from C&L, go with a Pro-m or something like that, then you got to decide on a blow or draw-thru....lightning maf's are dirt cheap tho like 90 bucks and are tuned for 42's already I believe, but are limited in blow thru form I believe to like 450rwhp or something like that..

I assume you're running with the spout out? or have low base timing?


87 GT 306 machined/built by me..Windsor Jr heads, E cam, GT40, lt's, Tremec 3550 etc....Tweecer R/T tuned PLX wideband

Bunch of parts for sale..306, fully forged 347, 0 mile 357, Fully Forged 408, tremec trans, clutch, and more....
357poweredstang is offline  
post #11 of 11 Old 05-18-2009, 01:54 PM
Registered User
 
Trader Feedback: (0)
Join Date: Aug 2007
Location: Oregon
Posts: 106
Rather than just stay away from or choose this MAF meter over another. I would ask your tuner or whoever you plan on having tune your car what meter they would rather have you have. Save you the trouble of possibly having to buy 2 meters like I ended up doing...

Carb swap in progress...
Scout2232 is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
I have an Air Fuel Problem bobrules 5.0/5.8 Engine Tech 3 06-19-2006 10:22 PM
air/fuel problem !!! MAD FORD GT & SOHC 5 05-19-2006 10:43 AM
Air/Fuel Gauge Problem vinny89GT 94/95 Tech 5 07-18-2004 11:41 AM
air to fuel ratio, fuel psi, and voltage problem souljaslim2k2 GT & SOHC 0 07-07-2002 07:27 AM
intermittent problem with air/fuel monitoring mgnovasaleen 5.0/5.8 Engine Tech 1 05-27-2002 01:21 AM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome