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Old 05-27-2013, 04:39 PM   #51
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Originally Posted by TiStick View Post
Good thing I didn't buy your tune and a wideband.
I dont think so but thats your call , The Tune is one of the only things Ford cannot see or know you did or have

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Old 05-27-2013, 04:48 PM   #52
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I didn't know warranty work was up to Ford to decide... I always thought it was the mechanics at said dealership to determine weather or not modification caused said problem to occur and if this can not be proven then Ford will pay said dealership to repair/replace problem.

Bottom line is; Ford pays the dealership to fix the problem. I don't think they would want to turn someone away.

If I am wrong do not shoot me.
No one is going to shoot you , "Ford" has control over what gets covered not the dealership ,

You take your car in with a blown engine , the dealer does the work it is a area warranty rep (traveling rep) that makes the final decision who gets what warranty on major parts , the mechanic has little to no say so at all when it comes to warranty

Ford dealerships can actually get in some trouble if they do "to much" warranty work

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Old 05-27-2013, 06:33 PM   #53
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Some is exclusive some isnt , all you have to do is look , ask and know people , I am in the Focus business it wouldnt be wise for me not to know whats happening so I stay in contact with people in Ford and many many dealerships that I do work for or friends or Family in

Need to look through those dynos again there all lean in my opinion, Mine is as well and the few I have had on my dyno ... all lean

Tom
I have plenty of connections. I might not be a professional tuner, but I HAVE been in this industry for quite some time.

And you said it yourself, In your opinion those engines run lean, when in reality DI engines are designed to run a bit more lean than a normal port injection car. On my ST things are a bit different of course, but other tuners I have talked to are still surprised at how lean the car runs, but then when I talk to DI tuners they assure me it's normal. My cobb tune, fswerks tune, and the sct tune I tested all ran around 12-12.5:1. My NA was the same way. The users I listed's graphs all have them in the same range. Others have said theirs are also there as well.
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Old 05-27-2013, 07:16 PM   #54
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One run on a dyno vs a track day when your on the track is not the same tune , this is where a LOT of tuners get in trouble , they like to go to the leaner side because that shows the best dynos and what the customer wants to see

I have a LOT of SCCA winning customers running the Zetec and I put the NA 93 octane fuel tunes at 12.8 air fuel , most say you will see a los in HP with that AF , I do boosted at 10.8 AF , I have been raked over the coals for this by many builders and tuners , it works , they live and they loose little to no HP

My 2012 in my opinion is lean and I will be changing it as soon as my code is finished through SCT .

I tune a SCCA gen3 all stock and he killed 2 engines , added fuel and now the engine is living , I feel the engines are lean to th point of being dangerous , add intake and header , exh and you make the problem worse , put the car on the track and do a few laps and you will see the car go leaner

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Old 05-28-2013, 09:06 AM   #55
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Well I keep trying to upload the image of the piston but it keeps failing to upload. Anyhow I have seen the piston and the head and the bent valves in person. I have a picture if the piston but didn't get a shot of the valves because I was talking to the mechanic and forgot. The piston has a chunk of the edge on the firewall side about 2" long melted away down to the rings. Three out of the four valves are bent very badly and one is bent slightly. The first thing I talked to the service writer about was my mods. They were aware of them from the beginning and if ford would have suspected the mods to be the reason y the engine failed they would not have covered it under warranty. The way it actually happens here in PA (Tom) is there is no traveling warranty rep. The mechanic working on the vehicle takes pictures and logs their info electronically and ford decides what happened and what they will fix and how. This is straight from the mechanic and service writer at smail ford in greensburg, pa. Ford has cut the dealership out of the decision making process, again straight from the horses mouth. So Tom I would like to see the proof of where you have the info that ford said it will not cover an MK3 with a CAI or a cat back exhaust, because they are covering mine without question. I only put this post on here to inform people of what appears to be a freak mechanical issue in my engine. Not to start a conspiracy theory that ford did not do enough R&D on the engine and now it runs to rich or lean. I will keep trying to get the pictures up. I am going to give the dealer a call today and get a status update also
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Old 05-28-2013, 09:22 AM   #56
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Quote:
Originally Posted by hixsonaf View Post
Well I keep trying to upload the image of the piston but it keeps failing to upload. Anyhow I have seen the piston and the head and the bent valves in person. I have a picture if the piston but didn't get a shot of the valves because I was talking to the mechanic and forgot. The piston has a chunk of the edge on the firewall side about 2" long melted away down to the rings. Three out of the four valves are bent very badly and one is bent slightly. The first thing I talked to the service writer about was my mods. They were aware of them from the beginning and if ford would have suspected the mods to be the reason y the engine failed they would not have covered it under warranty. The way it actually happens here in PA (Tom) is there is no traveling warranty rep. The mechanic working on the vehicle takes pictures and logs their info electronically and ford decides what happened and what they will fix and how. This is straight from the mechanic and service writer at smail ford in greensburg, pa. Ford has cut the dealership out of the decision making process, again straight from the horses mouth. So Tom I would like to see the proof of where you have the info that ford said it will not cover an MK3 with a CAI or a cat back exhaust, because they are covering mine without question. I only put this post on here to inform people of what appears to be a freak mechanical issue in my engine. Not to start a conspiracy theory that ford did not do enough R&D on the engine and now it runs to rich or lean. I will keep trying to get the pictures up. I am going to give the dealer a call today and get a status update also


Everything you said about warranty approval is exactly what they told me when I messed up a piston and needed a new engine
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Old 05-28-2013, 09:29 AM   #57
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Quote:
Originally Posted by hixsonaf View Post
Well I keep trying to upload the image of the piston but it keeps failing to upload. Anyhow I have seen the piston and the head and the bent valves in person. I have a picture if the piston but didn't get a shot of the valves because I was talking to the mechanic and forgot. The piston has a chunk of the edge on the firewall side about 2" long melted away down to the rings. Three out of the four valves are bent very badly and one is bent slightly. The first thing I talked to the service writer about was my mods. They were aware of them from the beginning and if ford would have suspected the mods to be the reason y the engine failed they would not have covered it under warranty. The way it actually happens here in PA (Tom) is there is no traveling warranty rep. The mechanic working on the vehicle takes pictures and logs their info electronically and ford decides what happened and what they will fix and how. This is straight from the mechanic and service writer at smail ford in greensburg, pa. Ford has cut the dealership out of the decision making process, again straight from the horses mouth. So Tom I would like to see the proof of where you have the info that ford said it will not cover an MK3 with a CAI or a cat back exhaust, because they are covering mine without question. I only put this post on here to inform people of what appears to be a freak mechanical issue in my engine. Not to start a conspiracy theory that ford did not do enough R&D on the engine and now it runs to rich or lean. I will keep trying to get the pictures up. I am going to give the dealer a call today and get a status update also
Sounds to me like it didn't have an injector that actually hung open, but one that did not fire, thus leaning that cyl out to the point of melting the piston and causing chunks of it to get in the way of the valvetrain causing the bent valves. Glad to see the issue is being sorted out for you.

Yes, this sounds like a freak mechanical issue (only one cylinder was damaged) and I am sure Ford will take notes so that this may be corrected in the future.
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Old 05-28-2013, 09:30 AM   #58
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Question

Quote:
Originally Posted by 1turbofocus View Post
One run on a dyno vs a track day when your on the track is not the same tune , this is where a LOT of tuners get in trouble , they like to go to the leaner side because that shows the best dynos and what the customer wants to see

I have a LOT of SCCA winning customers running the Zetec and I put the NA 93 octane fuel tunes at 12.8 air fuel , most say you will see a los in HP with that AF , I do boosted at 10.8 AF , I have been raked over the coals for this by many builders and tuners , it works , they live and they loose little to no HP

My 2012 in my opinion is lean and I will be changing it as soon as my code is finished through SCT .

I tune a SCCA gen3 all stock and he killed 2 engines , added fuel and now the engine is living , I feel the engines are lean to th point of being dangerous , add intake and header , exh and you make the problem worse , put the car on the track and do a few laps and you will see the car go leaner

Tom
I thought you hadn't tuned any MKIII's yet.
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Old 05-28-2013, 09:57 AM   #59
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The injector malfunctioning would be very strange. I'm not that familiar with other DI platforms and this happening.... but it's never something you were about in the Mazda world.

I wonder if maybe it had something to do with a fuel pressure dip or something more like that. I'm guessing with the compression of this engine, it doesn't particularly care for KR all that much.

As far as I'm concerned, with DI you can actually run the mixture leaner due to the efficiency of the burn since fuel is being injected directly into the cylinder.

There typically isn't a huge power gain (or loss) from fattening it up, but 10.8:1 seems very very excessive. There have been plenty of boosted/raced DI cars who are commanding anything from 11.5-12.5:1 with great success.

Someone just needs to monitor KR while they're playing around with the mixture. Find out where they actually knock and not just use archaic information from 20th century technology.
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Old 05-28-2013, 10:30 AM   #60
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The whole idea of going to DI in gasoline engines is for efficiency. You can get away with a leaner mixture because of the way fuel is injected into the engine, plus the added compression to make it all work as efficiently as possible adds extra power (along with the improved intake flow due to not having that injector stuck in the port). Further, there is more octane tolerance (you can run lower octane with high compression and get away with it). Lots of win-win going DI (if you can get the cost and complexity under control from a manufacturing standpoint).
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