If this "problem" is a supposed reversion to a base map, why are you guys not resetting the ECU and then immediately doing another run? It seems this would be the first thing to try, and it only takes a couple of minutes to do.

 

Se hammermelli this - all relevant if you would just rather bolt up parts and hope for the best thats fine-- wouldnt you like to know what the brain is doing?

 

I thought about resetting the ECU, but at the time it didn't cross my mind because I didn't know there were so many differenet maps. Anyone have a clue as to when these different maps change over?

 

Thats the topic bro start checking the posted fuel maps

 

I would say look at the AEM but take your time so you don't end up with THIS!

 

Perhaps you forgot the initial scenario you started asking about, that began this thread. The supposition was that bad gas caused a drop in hp, not fall back on secondary maps. To easily rule out entirely a brain issue, resetting the ECU could have reinforced the bad gas assumption. Wouldn't you like to take the easy steps before the hard ones, or do you always operate only on ASSumptions, like ASSuming it is the brain and not another variable?

Sometimes I think I need to go to the safe and get out one of the Hammerli's in cases like this.

 

I don;t dislike ANYONE - none of this is personal to me. In fact - I got nothing against Shiv either. I enjoy Evos more than anything else and its about ALL I do all day and night when I can eascpe from my family duties. Between working on my new head set up and getting my car ready for the track and also running the Dyno Flash business I am busy beyond belief and i have no time for any neagative feelings.

I would love to elaborate further on my reflash machine and how it works (pardon the pun) but I really do not feel that our typical end user really cares about all the conceptual workings. Our clinets seem to be most interested in how the car drives. So far everyone we tuned has been very satisfied with the way their cars works and to the best of my information its the same case with the Works reflash customers who all report great results with the same technology.

My thought is that Shiv has somehow obtained this machine and is going to offer a flash along with the exde - at least thats my theory. As obnoxious as he has been to me over the years, I certainly am NOT going to break this down any further to ease his path. Let him figure it out the same way I did and Works did.

I honestly don't know WHAT your real motivation in asking these questions is maybe you are working with Shiv - maybe your just a curious potential customer. We are happy to work on your car and give you a custom tuned on the dyno reflash - HOWEVER - I choose NOT to answer any further of your tech questions on our flash process.

 

Your problem is NOT map changing.

What is happening with your safc is that you are greatly reducing the MAF signal which makes the ecu think there is a lot less load. Under less load high rpms situations the ecu runs a LOT more timing than under full load.

So you actually have a greater load than stock but are running on timing set for a ligher load - if you are following me ??

As a result your first pass or two is super strong

Then the ecu starts to write the knock corrections and slowly pulls out more and more timing over the course of several runs - each degree of timing takes out about 10 whp depending on your mods and power level - so after a short while your down 30 - 40 whp and your trq curve is bumpy as can be

A good way to test this theory is to dump in some C-16 leaded race fuel - let it circulate in the tank and then reset your ecu - if your power then stays up stronger - which I think it will then its prob a knock sesnor retard fucntion problem

For example - here is a safII dyno sheet from my car - see the very bumpy power band????


http://www.pruvenperformance.com/images/aldyno3.JPG

ADD in an emanage so you can adjust the ign timing curve - and with all the same mods and gas on the same car you get the same peak power BUT with more trq and a smoother curve - here

http://www.pruvenperformance.com/images/aldyno4.JPG

Having the reflash gives you the same result - BUT - since its load referenced like stock and not TPS like the SAF you can also tune for part throttle full boost and full throttle spooling up situations . Also the reflash just feels a lot smoother as I feel its a lot faster (removes a electrical calculation the safc does) and a lot more accurate

 

Sure whatever you think man I think pea shooters do belong in the safe - the iron http://hkpro.com/mp5sd.htm stays bedside

 

For those who have any problems with Al, why not give Pruven a call and ask for him. I would assume he would talk rationally to you instead of bickering on a forum.

 

Ok man I do appreciate what you did provide its much more than anyone else provided. Working for shiv? Thats pretty far fetched bro- I can assure you thats not it. If I pony up the $$ for the flash can you disclose some of the more technical aspects in private?

 

Hey Al, what do you think of the AEM?

 

I dont have one yet - will be getting one to test.

I already have a Autronic PMP evo 8 board I will be testing very soon.

In the meantime I am waiting so I can push the reflash technology to the limit ! I want a 10 sec reflash time slip then i will go stand alone - with over 600 whp I am certainly in need to loose the stock maf sensor

We will keep an open mind until I test them both. I do lots of testing

I've had 5 cam sets on my car to find the best set up.

I will be offering tuning on both the Autronic and AEM in a few months after we master them

For anyone under 400 whp a reflash and emanange set up gives you all the features you need to make serious power while keeping OBD 11 compiance and stock like feel.

 

Stay with what you know, which is... whatever. If you had a clue you'd know the Hammerlis are for one form of competition. I won't even go there, anytime you and your spotter want to head out to the 1000m range, give me a call and we'll set up a little match. Anyone with a class 3 can spray, including me, but you are a flat out idiot if you are admitting to that as a home protection weapon. Repeat after me, limit collateral damage.

 

What about if you go with a bigger turbo? Can the reflash still get you though the OBD2 test? What I was going to do is get a SAFCII and lean it out with say 660 injectors and a 255 pump on the stock turbo at first. The ONLY reason I was going with the SAFC is to do emissions testing every year.