Search



Go Back   MustangForums.com > Ford Mustang Tech > 2005 - 2014 Mustangs > GT S197 General Discussion > 4.6L V8 Technical Discussions
Sign in using an external account
Register Forgot Password?
Search

4.6L V8 Technical Discussions Any questions about engine, transmission, or gearing can be asked here!

Welcome to Mustang Forums!
Welcome to Mustang Forums.

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, at no cost, 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!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 09-26-2011, 10:20 PM   #1
grandpajay
1st Gear Member

 
Join Date: Feb 2011
Vehicle: 2006 Ford Mustang
Location: Maryland
Posts: 68
Default new Ram Induction hood, car's running lean!!

I just got the TruFiber GTS-4 hood, it has functional ram scoops that dump over the CAI and now when I get above 40mph and let off the gas my car stalls out. obvious it's to much air in the engine and I'm running lean. I need suggestions to fix this... here are my ideas, let me know if they're along the right lines or if they're completely wrong. for now I have cardboard blocking the duct...

new tune that calls for more fuel - will I run rich when I'm off the throttle though?

Get a K&N Air filter and put it in the duct to restrict air flow into the CAI...

Get a Throttle Body to control the air intake (will this stop to much air from getting in the engine when I let off the gas though??)

cover the CAI... I have a steeda CAI

those were all the ideas - I'm really hoping that a Throttle body will help, but i honestly have no idea
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
grandpajay is offline   Reply With Quote
Old 09-27-2011, 02:13 AM   #2
siggyfreud
5th Gear Member
 
siggyfreud's Avatar
 
Join Date: Oct 2009
Vehicle: 2013 Boss 302
Location: Oregon
Posts: 2,646
Default

Really ned to data log to know for sure what is going on. You can add more fuel for the specific rpm/load you're lean at. Or at least a tuner with a wideband O2 can :-)
__________________
max sig size 500px wide X 250px high. Thank you, Admin.
What to do with a blown motor - Check it out.
siggyfreud is offline   Reply With Quote
Old 09-27-2011, 06:19 AM   #3
grandpajay
1st Gear Member

 
Join Date: Feb 2011
Vehicle: 2006 Ford Mustang
Location: Maryland
Posts: 68
Default

explain the second part - what's tune with a wide band 02 can?? also I'm calling Bama, AmericanMuscle.com and the shop that did the work today! I'll let everyone know what comes of that tomorrow
grandpajay is offline   Reply With Quote
Old 09-27-2011, 07:01 AM   #4
jwharton
2nd Gear Member
 
Join Date: Mar 2010
Vehicle: 2006 GT
Location: KS
Posts: 260
Default

I had a 08 V6 that I put a shaker hood on and it did the same thing. It was not running lean that caused the problem. I had an aftermarket intake with a cone filter that I was dumping the ram air onto. The turbulence caused the MAF sensor to be irradic. I put a deflector around the the cone where the ram air hit it and it cured the problem. May not be what you have going on...but it could be.
Jim
__________________
Jim
2006 Black GT manual



Mods; Saleen Supershaker Satge 3, KB Boost-a-pump, "Detroit Rocker" cams, Brenspeed tuned, modified Hurst shifter, Shaftmasters D/S, Vogtland springs, FRPP racing dampners, FRPP 4.10 gears, J&M adj. PH bar, stock GT mufflers, Pypes O/R H, Bullet 18x9 frt/ 18x10 rears with Nito 555 rubber, painted stripes.
jwharton is offline   Reply With Quote
Old 09-27-2011, 08:42 AM   #5
MAXIMUS-GT
2nd Gear Member
 
MAXIMUS-GT's Avatar
 
Join Date: Jul 2011
Vehicle: 2009 Shelby GT500
Location: Ohio
Posts: 251
Default

Let us know when/how you fix the problem. Hopefully I don't run into this, just installed a Kenne Bell Stage-2 Supercharger and Intercooler, but it comes with a competition cone filter that moves the air intake down near the front bumper/fender for much more efficient cooling and intake. I am installing a Super Snake hood as soon as the paint work is done, but that should only help to cool the engine overall, and not mess with the MAF (it is being precisely tuned anyway at the Dyno performance shop). Best of luck to you. PS:Are Maybe the ram air hood doesnt have the functional kit to direct and force air only to the intake?
__________________
FOR SALE in impeccable condition:
1. Shelby GT500 Steel Stallion
2. Kenne Bell Stage-2 Liquid Cooled Super Charger (paid $6,400; sell $4,500) fits any GT 2005-2009
MAXIMUS-GT is offline   Reply With Quote
Old 09-27-2011, 08:54 AM   #6
908ssp
3rd Gear Member

 
908ssp's Avatar
 
Join Date: May 2010
Vehicle: 2010, Ford, Mustang
Location: Michigan
Posts: 642
Default

With the throttle off the engine gets NO fuel. So it can't be running lean as lean is a condition of too little fuel and off throttle is NO fuel. I know sound wrong but it is an emissions thing. Seems like the engine would stop running but somehow it doesn't normally. It is turbulence from the air's erratic behavior around the filter.

Last edited by 908ssp; 09-27-2011 at 08:58 AM.
908ssp is offline   Reply With Quote
Old 09-27-2011, 10:46 AM   #7
grandpajay
1st Gear Member

 
Join Date: Feb 2011
Vehicle: 2006 Ford Mustang
Location: Maryland
Posts: 68
Default

the more people I talk to, the more it sounds like a MAF sensor issue because of all the air being forced onto the intake moving the system around and driving my MAFS nuts. so now the question is what should I do to remedy that? can I get a MAFS that will coop better with the turbliance? I really hate the idea of dumping close to $1500 into this hood and losing it's funcaionality!!
grandpajay is offline   Reply With Quote
Old 09-27-2011, 10:58 AM   #8
jwharton
2nd Gear Member
 
Join Date: Mar 2010
Vehicle: 2006 GT
Location: KS
Posts: 260
Default

I don't know what your air intake setup looks like, but I am guessing that you are really just providing fresh cooler outside air to the filter. It would be hard to beleive that you are actually developing positive pressure. All you need to do is make a deflector of somekind so that the air is not blowing on the filter such that is causes turbulence. The fresh air is good...just not blowing on it.
__________________
Jim
2006 Black GT manual



Mods; Saleen Supershaker Satge 3, KB Boost-a-pump, "Detroit Rocker" cams, Brenspeed tuned, modified Hurst shifter, Shaftmasters D/S, Vogtland springs, FRPP racing dampners, FRPP 4.10 gears, J&M adj. PH bar, stock GT mufflers, Pypes O/R H, Bullet 18x9 frt/ 18x10 rears with Nito 555 rubber, painted stripes.
jwharton is offline   Reply With Quote
Old 09-27-2011, 11:04 AM   #9
grandpajay
1st Gear Member

 
Join Date: Feb 2011
Vehicle: 2006 Ford Mustang
Location: Maryland
Posts: 68
Default

Jwharton - that sounds like a good idea. I just got off the phone with Bama and the guy suggested I plug up that duct, but deflecting to maintain the cooler air flow does sound like a smart idea. tonight when I get home I'll get some pictures and see if i can't post them on this thread! any ideas for deflecting the air? I'm thinking a piece of sheet metal at the duct that pushes it to the side, so it doesn't dump right onto the CAI... picks in about 6 hours
grandpajay is offline   Reply With Quote
Old 09-27-2011, 12:12 PM   #10
jwharton
2nd Gear Member
 
Join Date: Mar 2010
Vehicle: 2006 GT
Location: KS
Posts: 260
Default

I took aabout a 4"X6" peice of flexible plastic and wrapped/fastened it to the cone filter right in front of where the duct blew on the cone filter. I did not restrict the duct at all...I just stopped it from blowing directly on the cone filter.
__________________
Jim
2006 Black GT manual



Mods; Saleen Supershaker Satge 3, KB Boost-a-pump, "Detroit Rocker" cams, Brenspeed tuned, modified Hurst shifter, Shaftmasters D/S, Vogtland springs, FRPP racing dampners, FRPP 4.10 gears, J&M adj. PH bar, stock GT mufflers, Pypes O/R H, Bullet 18x9 frt/ 18x10 rears with Nito 555 rubber, painted stripes.
jwharton is offline   Reply With Quote
Old 09-27-2011, 12:12 PM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Tags
air, cervini, fresh, hood, induction, lean, mach, new hood, ram induction, running, shaker, stall, supercharged, throttle body, work

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 11:25 AM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup