Learning to make fast go fast!

[crownaviation]

PA 130a

Also talked to AEM and found out that there meth kits shut down at 16v to save the unit.

ohh that is great and what i was gathering you were thinking as well.. so, lets save a $300 meth brain and trash a $10k+ motor.. what a great freggin plan that is

Not saying that is what happened but certainly could..

 

[05stroker]

ohh that is great and what i was gathering you were thinking as well.. so, lets save a $300 meth brain and trash a $10k+ motor.. what a great freggin plan that is

Not saying that is what happened but certainly could..

Agreed and going to look for a way to bypass that shit! I think that was there for a while though and I will find a lack of fuel in the tank tomorrow.

Here are a couple more pics of the damaged piston.

 

[D98GT]

Guess that explains the fire-like amount of smoke haha

 

[muztangman93]

I was thinking your tune wasnt dependant on the meth injection and it was there just for a cooling factor.

 

[05stroker]

I was thinking your tune wasnt dependant on the meth injection and it was there just for a cooling factor.

Just running a 30/70 mix. Even without the meth the e85 is not going let this happen.

Thing is at 16v it shuts off. Did not know that myself. It does say it in the manual though. That explains why my AITs have been higher then normal. With 16v a lot of the sensors and such could not work properly as well.

I still think it was fuel starvation though. I will know in a couple of hours after I drain the tank.

 

[Department Of Boost]

What are you running for an alternator that makes 16v?

 

[05stroker]

What are you running for an alternator that makes 16v?

That's what Im saying! Its a PA 200a alt. Data log shows 14v or so till about 4700 rpms and then 15.8 to 16.0 till I am out of WOT and back down below 4500 rpms.

EDITED: PA 200a

 

[Department Of Boost]

That's what Im saying! Its a PA 200a alt. Data log shows 14v or so till about 4700 rpms and then 15.8 to 16.0 till I am out of WOT and back down below 4500 rpms.

EDITED: PA 200a

That’s kinda scary. What is the alternators set point in your tune? Is it blowing through the set point?

 

[05stroker]

That’s kinda scary. What is the alternators set point in your tune? Is it blowing through the set point?

What do you mean set point in the tune. This is unfamiliar to me.

 

[Department Of Boost]

What do you mean set point in the tune. This is unfamiliar to me.

I’ve never set it myself (I’ve never done any S197 tuning). But as far as I know there is a place in the ECU that “tells” the alternator what to make for voltage. The stock set point is 14.2v. Mine is set at 14.5v. You should be able to get in there and see what it is set at.

If your set point is below what it is making for voltage you need at least a regulator (in the alternator).

 

[05stroker]

I’ve never set it myself (I’ve never done any S197 tuning). But as far as I know there is a place in the ECU that “tells” the alternator what to make for voltage. The stock set point is 14.2v. Mine is set at 14.5v. You should be able to get in there and see what it is set at.

If your set point is below what it is making for voltage you need at least a regulator (in the alternator).

Never heard of that. So you are saying there is s way to set max voltage using the pcm? I thought all voltage was controlled by the regulator in the alternator.

 

[Department Of Boost]

Never heard of that. So you are saying there is s way to set max voltage using the pcm? I thought all voltage was controlled by the regulator in the alternator.

The PCM tells the alternator what to do then there is a "regulator" in the alternator that works off of that info.

But yes, on a basic level our alternators are PCM controlled.

 

[05stroker]

The PCM tells the alternator what to do then there is a "regulator" in the alternator that works off of that info.

But yes, on a basic level our alternators are PCM controlled.

Good to know, I will look into it.

So, you think the regulator is out and that is why it would spike at wot? It is good at normal driving but high at wot.

 

[one eyed willy]

^ yes, there is a voltage table. I've never done much with it, but it's there.

 

[Department Of Boost]

So, you think the regulator is out and that is why it would spike at wot?

That would be my guess. There is no reason why it should ever be above the PCM’s set point. It wouldn’t surprise me either. Those PA alternators use bottom of the barrel components and to add insult to injury the 6G alternator design is flawed pretty badly anyway. They especially don’t like to be spun hard, and you are spinning yours REAL HARD. Even if a 6G is built with all the best parts they are still time bombs. They can last 100mi or 100,000mi, it’s a crap shoot. Ford switched to Denso alternators in 2010 because they were having so many issues with the 6G’s and warranties.

If you want to get away from that 6G setup I have custom 167amp Denso’s and very, very custom 215amp 4G’s.

 

[05stroker]

If you want to get away from that 6G setup I have custom 167amp Denso’s and very, very custom 215amp 4G’s.

I think for now I will just take the PA to a shop in Dallas that I know has a good reputation and fix this one for now. If it goes out again I will give you a shout.

 

[05stroker]

Update

Well guys it looks like this was my fault. In the pic below you will see a partially filled rank. This is some fuel I already had in the garage. It is there for reference of the other completely full tank. Now look at the full tank, there is a black line at about 2.5 gal, that is what I pumped out of the drivers side where the fuel pump is. The rest came from the pass side. This represents 6.3 gal of fuel. or just under 1/2 tank of fuel. Also form testing I know that the drivers side of the tank will hold 6 gal before over flowing to the pass side.

Now the other night at the track on my next to last run the car nosed over at the top end of the track. That is when I noticed the fuel gauge said 3/8 of a tank. I then went back to the pits and added approx. 4 gal of fuel that would have all gone to the drivers side.

Okay, notice I said there was just over 2.5 gals in the drivers side today. Now if I added 4 gal before the last run that leaves 1.5 gal for what was in the drivers side of the tank on the next to last run and the fuel used in the last run!

Looks like I starved it for fuel!

 

[stretch]

better get them upgrades done. these 5.0s are not getting any slower.

 

[BruceH]

At least you figured it out and don't have any head scratching going on right now.

 

[D98GT]

The crazy part about this is Billy was preaching to us just about this during the last meet. I assume the 5.0 tanks are the same design so its good knowledge for us