Anyone use boost retard chip and AFC Hack?
 

My turbo project is going to be running this week, I'm trying to decided if I should chip my ECU or not. I have a chip coming in from a guy on PGFMI.com that is for the PR3 that retards the timing 1 degree for every 1 pound of boost. Will this resolve the common issues with VAFC Hack timing?

Re:Anyone use boost retard chip and AFC Hack?
 

Good question I was wondering the same thing.

Re:Anyone use boost retard chip and AFC Hack?
 

That would be the same thing as using a BTM. It will help while you are in boost, but at low throttle and take offs it will be the same. You would still need to retard the initial timing.
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Re:Anyone use boost retard chip and AFC Hack?
 

Yes it should correct the advanced timing with the AFC hack, and retard under boost. Dr. Boost is right though, you may need to retard base timing at the distributer a bit more. I will be running the same setup with my uberchip and AFC.

Re:Anyone use boost retard chip and AFC Hack?
 

I was using an AFC with Uberdata and the timing was quite a bit better, but it still needed some work. Good luck tuning the Uberteg chip with the AFC. Mine responded pourly to any corrections with the AFC. I had the low throttle cranked down to -50 and it was still rich. :o As long as you get a really good program for the chip it should be good.
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Re:Anyone use boost retard chip and AFC Hack?
 

;)Thanx doc, I'll keep that in mind

Re:Anyone use boost retard chip and AFC Hack?
 

This is just a stock chip with no fuel changes just timing changes.

Why would I need to retard base timing, and how much if I run 9PSI?

Re:Anyone use boost retard chip and AFC Hack?
 

As you already know, the AFC advances the ---- out of your timing all the way across the table. The chip will only retard timing when you are boosting so while you are cruising and not boosting your timing will still be all jacked up.

I have my distibutor almost all the way retarded. I just basicaly placed it where it worked the best(no timing light). I lost a bit of power, but it's better than listening to all that pinging and possibly blowing my motor.
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Re:Anyone use boost retard chip and AFC Hack?
 

Okay I understand what your saying, but if using a BTM is the same as chipping the ECU for retard why does "Joseph Davis" always say it's a better idea to chip? Just cause it's cheaper? Or does it actually work a little better? Easier to tune?

Re:Anyone use boost retard chip and AFC Hack?
 

You can use the fuel tables as well. beta14 was talking about just using the ignition tables. I didn't even know this was possible. If you use the entire capability of the chip you can tune your car perfectly with a wideband. You also don't have the extreme timing advance associated with the AFC. The chip also allows you to set a certain retard at several different rpm/boost settings.
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Re:Anyone use boost retard chip and AFC Hack?
 

Yeah I was just talking about ignition as well. You are talking about the uberchip right? I have no turbo or tuning experiance at all and I was looking into the uberchip, but I don't understand everything well enough yet to dive right into that. Maybe I will just keep researching on that though. Right now I was just planning on starting out with the afc and chipping the ecu for retard until I learn more. Then again if I am going to do any ecu chipping I might as well take advantage of everything the chip can do. :-\

Re:Anyone use boost retard chip and AFC Hack?
 

Yeah, that Uberchip stuff is crazy. I'm going to just buy a wideband and tune the Uberchip with that and stop ------- with it. This would work great if I could get it all tuned and working. I'm still learning about this chip burning stuff myself. It gets complicated. I still can't figure out how he is getting a chip with just ignition maps and no fuel. I don't understand how that is possible by looking at this software. Maybe I am missing something? ???
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Re:Anyone use boost retard chip and AFC Hack?
 

Yeah maybe Joseph will reply on this and clear everything up.

Re:Anyone use boost retard chip and AFC Hack?
 

He hex edited a stock program and just retarded the ignition maps, the fuel maps are still there they are just left stock. He told me that I could just leave my timing at the stock point.

Re:Anyone use boost retard chip and AFC Hack?
 

I can't see how you are going to adjust the fuel with the AFC now. On mine the AFC wouldn't do very much adjusting. Hmmmmm....maybe yours is just a completely different setup? ??? I thought they were all basically the same. :-\
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Re:Anyone use boost retard chip and AFC Hack?
 

If you set your afc to 1 bar of boost in the setup, then you will use all of the new timing. If you time it for boost. Then when a certain amount of pressure in the manifold is present a different ignition value is used, from the new redrawn table.

Fuel can be adjusted just like regular, with the afc, but now the afc no longer bullshits the manifold pressure to ECU. So if you have good timing maps you can leave your ecu alone and just ---- around with you fuel amounts through the afc.

Re:Anyone use boost retard chip and AFC Hack?
 

where can i buy one of those chips for a pm6 and how much will this cost

Re:Anyone use boost retard chip and AFC Hack?
 

This is a MAPhack .bin, which is a retune of the ignition map on a stock .bin. It corrects the stretched/advanced ignition timing from AFC hacks. You tune your fuel like normal and don't worry about any possible ignition-related side effects.

JalopySiR has a thread up on HT about his B20 turbo setup, which uses a custom MAPhack I did for him. 208 whp and 191 wtq off 6 psi, runs like a beast. :)

anthony88, I'm backlogged right now with a lot of stuff, and have been lagging on a few people's chips. I'm more than happy to help you out... you can DIY by buying a burner and most of my MAPhack .bins are stored on PGMFI.org - I'll give you all the free advice you need if you go this route - or you can pay me a few bucks for my time and I'll do it, just not for the next week or so.

Re:Anyone use boost retard chip and AFC Hack?
 

I'm running both, and they run well together, I do some fine tuning with the VAFC. plus or minus a percent for fuel here and there. Runs just like my buddys eclipse, just faster. :)

Re:Anyone use boost retard chip and AFC Hack?
 

From my understand of what I have seen from Blake's boost programs, you don't use the AFC. They're standalone chips. Injectors and ROm, that's it.

Re:Anyone use boost retard chip and AFC Hack?
 

Yes they are standalone chips, BUT, if one already has an afc, and it is already installed and running. It is easier to use the fuel correction with afc then to reburn a chip.

Re:Anyone use boost retard chip and AFC Hack?
 

Sorry, BigJ, I know what you mean.

I was pretty much referring to this..