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-   -   The truth about the afc hack!!!!!!! (https://www.homemadeturbo.com/engine-management-10/truth-about-afc-hack-4256/)

Last_Mohican 04-26-2003 01:19 PM

Re:The truth about the afc hack!!!!!!!
 
DR.Boost i had been trying to tell you from the beginning that i knew my stuff. I was only unclear about the timing advance before boost. Joseph has cleared that up. The BTM as i thought is not good enough really. I am probably not boosting my accord anymore now because this is too ricky for a 99 accord still under waranty with 70k miles. :( I will be buying a crx or hatchback instead.

Keehnel1414 04-26-2003 01:38 PM

Re:The truth about the afc hack!!!!!!!
 

The stock Honda MAP sensor cannot sense beyond 9.25 psi 85-91, or 10.65 psi 92+. Understand that if you run right at the borderline, boost creep/spike might own you. If you run 12 psi... hope it isn't daily! I'd run that if I knew I was rich for a timeslip, or for a little fun, but there's too much chance of something going wrong if you drive daily like that.
Can you please explain to me what all this means. I am really retarded and have no clue about what you said here. Thank you for all the help maybe this will clear up some things for other people too.

T3 04-26-2003 03:34 PM

Re:The truth about the afc hack!!!!!!!
 

Originally Posted by Keehnel1414
where can i get a manual?

http://tech.hybridgarage.com/tech/ma...vicemanual.pdf

Turbodelsolman 04-26-2003 04:58 PM

Re:The truth about the afc hack!!!!!!!
 
If you still dont understand after they have clearly explained it, you need to learn the basics of your car(i.e changeing the oil.) Go to your nearest auto store and buy a manual, autozone checker napa, places like that. READ MORE POSTS!!!

Last_Mohican 04-26-2003 06:10 PM

Re:The truth about the afc hack!!!!!!!
 
please dont post gay stuff like that Turbodelsol. Not sure why you wan to dis a HMT member but it is pretty stupid of you plus as you can see most people in this thread know how the hack works.

Keehnel1414 04-27-2003 12:52 AM

Re:The truth about the afc hack!!!!!!!
 
i understand the basics of the afc hack. I just don't think that everyone has a clear idea about all of the afc system. i just wanted to clear things up. Also thanks for the back up Last_Mohican.

Dr.Boost 04-27-2003 04:44 AM

Re:The truth about the afc hack!!!!!!!
 
I'll explain this as good as I can. Since you said you were planning on running 10 psi and you are getting 450cc DSM injectors and plan on running the S-AFC, you will be fine. You would be running the same setup I have and it works great. You will not need a missing link. The missing link is basicaly a one way valve that mounts inbetween the map sensor and the throttle body. It prevents the map sensor from seeing boost and setting off the cel(check engine light). Lets say the map sensor normaly reads voltage from .50 volts-5.0 volts on a naturally aspirated engine. .50 volts being at idle and 5.0 volts being wide open throttle. When you add boost to the intake, the map sensor will be getting lets say 1.0 volts per pound of boost. The ecu sees the voltage as being too high and sends a cel. With the AFC hack you are taking the signal from the map sensor and lowering the voltage to compensate for the large injectors which in turn tricks the ecu into thinking it is supplying the stock injectors with the proper ammount of fuel. Therefore your ecu will not sence boost because the voltage has been "hacked" to fool the ecu into thinking everything is ok.
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2000psi 04-27-2003 08:38 PM

Re:The truth about the afc hack!!!!!!!
 
OK I think everyone understands the deal with the lower map voltage but can someone say something about the timing curve when using the hack on/off boost? please?

Keehnel1414 04-27-2003 10:57 PM

Re:The truth about the afc hack!!!!!!!
 
That clears up alot of things for me. Thanks Mr. Dr. Boost. i was also wondering about what 2000psi said too. Thanks for all the help. I don't know what i would do without this site.

Dr.Boost 04-27-2003 11:12 PM

Re:The truth about the afc hack!!!!!!!
 
I'm not real sure about the exact advance the AFC adds. I'm sure Joseph knows though. All I know is it does advance it quite a bit. We'll have to wait for Joseph to answer this one..................
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