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Old 07-16-2007, 06:42 PM   #1
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Ford Racing BBK Tune Issues

Some of you have seen my post with my Dyno results from Friday. Had a poor showing of 198 wheel hp and 161 wheel torque. I also had an extremely rich air fuel mixture across the RPM band at WOT. Dynos and graphs can be found here: http://www.focusfanatics.com/forum/showthread.php?t=128033

Ford Racing did allow me to send in my graph and logs from the dyno runs in an email along with my modifications.

And just as I expected would happen. They are pawning off my results mostly on my Focussport CoolFlo and also ambient temperatures. They are completely ignoring the rich air fuel and low numbers.

Now how should I handle this? I would like, mainly out of principal, Ford Racing to take some kind of action. I know I am not the only Forum member that has documented the "safe" fuel mixture used by the Ford Racing tune. I do plan on getting a custom tune at some point. Ill let you vendors fight for my money later lol. As of right now I kinda need them to provide a reflash since I am about to be laid off and am having problems finding a new job.

Instead of linking you to another thread, I will quote the last email exchange from Ford Racing and Myself.

Quote:
Originally Posted by connolly92
The last reply before they closed shop for the day. This is I guess from the Tech that loads the programs. His name is Chris apparently. It would be great if McNews or Focussport chimed in.

Chris from Ford Racing:
" 1) IAT of 89.9 deg is from the sensor in the air meter and data logged from the processor? Why is it not plotted along with hp, tq, or a/f? Looks more like ambient air temp was 89.9 deg F, in which case the correction factor (less than 1) is not to an SAE standard, at those conditions SAE correction would be more like 1.10xx

2) If ambient air temp was 89.9 deg F then he should compare his dyno to other people's runs in the same ambient conditions. Compared to a run done on a 60 deg F ambient day of course the power and torque will be lower when done at 90 deg F ambient. What were the ambient conditions of his original non big-boost dyno run? 200whp on a 90 deg day is pretty good.

3) Anything other than the OEM SVT intake most certainly can cause variations in the intended fuel mixture and ignition timing. Changing the inlet system ahead of the MAF can have a drastic effect on the measured vs. actual air flow and therefore the resulting fuel mixture and ignition timing.

-Charles


Ray Herron
Ford Racing
Technical Support Group
(800) 367-3788
rherron9@ford.com"

My Reply:
"Dear Charles,
1. That was Ambient air measured at the filter by the sensors provided by Axcelerated Motorsports. They just like to monitor the intake temperatures
at the filter and also provide the humidity for the dyno runs.

2. Sure, 200whp on a non Big Boost dyno run would be better than satisfactory on a 90 degree day, however this was a Big Boost Kit run on a 90 degree and the number shown were only 198whp. I would believe you agree that 198whp is unsatisfactory when using 9psi versus the non big boost kit model of 5-6psi.

3. Ok, if you would like to say there would be a difference between a non factory intake and a factory intake, sure, I will agree with you. But a 20whp difference along with an extrememly rich A/F ratio, that is pushing it?

Here is what I plan on doing since nothing is being addressed towards the actual problem of poor numbers and rich fuel mixture besides the mention of the intake. I will call Axcelerated Motorsports and set another date to hop on the dyno. I will replace the stock airbox, unplug the negative on the battery to reset the ECU, clean the MAF and throttle body, and then make another pass on the dyno.

My question is, if the HP and TQ numbers are low once again, and the fuel mixture is excessively rich in the 10's, do you plan to provide any solutions to the problem? I am in noway shape or form trying to be a persistant pain-in-the-ass. I am however being persistent to come to a solution. Thank you for your time and response.

Tim Connolly"

2nd time they pawned it on the intake.
If you took the time to read through all of this, GOD BLESS YOUR HEART. Thanks for any suggestions or ideas.


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Old 07-16-2007, 06:48 PM   #2
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I think what he is trying to say is, It is your intake BECAUSE your intake moves the MAF sensor and in a lot of cases creates a rich/lean condition from the movement of said sensor. And Ford has no way to adjust for aftermarket parts so there isnt much they can do to help with this
Your best bet is to find a good tuner and have it tuned on a Dyno

Tom
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Old 07-16-2007, 06:54 PM   #3
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True. Then if I hop on the dyno for a couple runs with the stock airbox, they should be inclined to give a reflash? Right now I could spend 75 bucks for another quick run if the results would be a reflash from Ford Racing. I am about to be laid off and cant chuck out a half grand for a custom tune, otherwise I would be going to one of our forum vendors/sponsors for said tuning.
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Old 07-17-2007, 12:12 PM   #4
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Its official, Ford Racing plans on doing nothing, kinda as expected. Just got off the phone with Ray Herron again, he already knew the answer to my email about redynoing the car with the stock airbox. He just couldnt spend the time replying to my email I guess, or he might actually have been working on other projects this morning.

They state that the intake temperature at the filter of 89 degrees is why the numbers are down and why the car is running a rich fuel mixture, pulling timing. He stated that putting in the stock box may help the numbers and Improve A/F ratios.

So basically you should get under 200whp with the JRSC BBK on an SVT Focus with a rich a/f ratio during summer seasons. So Eat it lol.

Would it have been so difficult for me to email them my ECU again and them lean it out to a WOT A/F of 11.0?!?
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Old 07-17-2007, 01:04 PM   #5
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they prolly do not do that though because then there would be issues with reliability and give their tune a bad name if they did that and you popped your motor.
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Old 07-17-2007, 01:05 PM   #6
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ohh and their prolly busy with a really sweet tune for the 08 mustang.....pshhh
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Old 07-18-2007, 01:13 AM   #7
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When I get my car out of the shop tomorrow (having jrsc/bbk put on) I'll have them put it on the dyno and see what I'm making. I think there could be factors playing in as to why your making below 200 hp. Maybe it needs to be retuned with some of the mods you have because the FR tune works off the stock intake, and stock TB. ... I hope I'm getting my monies worth with this kit and tune....
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Old 07-18-2007, 12:54 PM   #8
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With my SVT BBK I got a 187hp with the stock airbox with K&N drop in filter at a lower temp with my AF at or below 10 at WOT as well. With stock BBK tune.
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Old 07-18-2007, 01:09 PM   #9
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Quote:
Originally Posted by Springbuck View Post
With my SVT BBK I got a 187hp with the stock airbox with K&N drop in filter at a lower temp with my AF at or below 10 at WOT as well. With stock BBK tune.
Do you have your dyno graph and data table?
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Old 07-19-2007, 09:31 AM   #10
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It was posted on here a while ago. I will look for the post.

Here is the link:
http://www.focusfanatics.com/forum/s...highlight=Dyno
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