Finally dynoing the Focus 5/2/12

[twoblue]

So do these cars have wide-band O2's or narrow? I thought that was one of the ways they optimized power and efficiency on the TI/VCT engines?

[_RED_]

To my knowledge we have narrow band sensors.

[twoblue]

That blows, wide band would ease tuning some, without the rich/lean yo-yo narrows provide. I have a buddy with an '11 5.0 Mustang maybe I can swipe his.

[_RED_]

The easiest thing for tuning is the innovated LC-1 wide band. I used that on a few cars. Also AEM is good as a permanent mount options.

[Kabigon]

Originally Posted by twoblue

So do these cars have wide-band O2's or narrow? I thought that was one of the ways they optimized power and efficiency on the TI/VCT engines?

The primary O2 is a UEGO (wideband).

Originally Posted by twoblue

That blows...

No, it doesn't.

[1turbofocus]

Originally Posted by REDFOCZ

While I will agree that it was running lean up until 4500 rpm's, what we need to do is to get rid of the power enrichment delay that way does not run lean up until 4500 under wide open throttle. And while I agree the 13.2 is a little lean I always shot to hit between 12.7-.12.9 for N/A motors.

Also I don't think because there currently no tuning available that companies shouldn't develop parts. If that is the case then the market would stifle and tuning companys may not bother cracking the ecm if it doesn't look like a market is there

Sent from my Galaxy S2

It isnt the time delay to WOT fuel (openloop) that is causing that , it is actually set that lean in the tuning from ford and in my opinion it is WORNG but I know why there doing it and for a grocery getter its fine , intake causes a leaner condition

I dont thinks parts should be released to the market that have the potental of hurting the engine because of the way there built and/or the lack of R&D just to make a $$$$ or to claim to be the first to market

All that would have to be done with an intake is see the engine is lean stock and slightly larger maf hole to richen it up , this would keep the engine safe , make more power , only down side is a redesign and spending more money and time to do it right so it comes down to being about the $$$$ so the customer suffers for this and if Ford sees the intake on there with a bad engine the customers then looses all waranty , why the crap not do it right ?

The dyno guy should of stopped this run and never let it go past about 4500 its insane to keep doing WOT runs knowing how lean that engine is , the guy doing the dyno should be ashamed

Yes I have had about 10 2012 on my dyno they were all lean

Tom

[1turbofocus]

Originally Posted by Kabigon

The primary O2 is a UEGO (wideband).

The front o2 is not used for WOT fueling

Tom

[Ox-y-GenIII]

I don't think an intake or exhaust void Fords warranty so I'm not worrying about it. Plus if you have had 10 2012's on your dyno that all ran lean then maybe it just runs lean.

I definitely don't know exactly what you mean but I understand the concept.

What should the afr be at during part throttle, wot, or idle?

[Ox-y-GenIII]

I'm also going to say that the place didn't go WOT until around 3,700 rpm I think it may show on the graph. They did it this way because the car would downshift out of 4th gear of.you went WOT before that rpm.

But is that partially to blame for it running lean until 4,500 or so? Also, where the afr dips to that dashed line, is that when it is getting more fuel?

[Ox-y-GenIII]

Stock 2004 dyno and afr. Starts at around 15.0 and ends at around 11.5 at redline but was above that most of the rpms before that, is this normal for that focus?

http://www.dragtimes.com/2004-Ford-F...aphs-9028.html