really AFCs blow the engines?
3.0 BAR
Joined: Jun 2004
Posts: 2,937
Re: really AFCs blow the engines?
Originally Posted by accordepicenter
i was running 13psi and had not many problems with the safc but it really isnt great managemant. I was able to get away with more than you guys typically will because the safc doesnt cause the ecu to advance the timing, it has no effect whatsoever.
http://www.pgmfi.org/twiki/bin/view/...PiggybacksSuck
1.0 BAR
Joined: Jan 2006
Posts: 525
Re: really AFCs blow the engines?
Thread Starter
3.0 BAR
Joined: Apr 2006
Posts: 2,057
Re: really AFCs blow the engines?
Originally Posted by Rx7toCivic
read before you ------ anymore miss information
http://www.pgmfi.org/twiki/bin/view/...PiggybacksSuck
http://www.pgmfi.org/twiki/bin/view/...PiggybacksSuck
so, this article is totally true?i'll continue reading of this Wiki
1.5 BAR
Joined: Aug 2003
Posts: 1,194
Re: really AFCs blow the engines?
Piggybacks suck not only because they can't independently adjust fuel and timing. They also can't adjust transient fuel, cranking fuel, rev limits, knock settings, closed loop fuelling settings and lots of other things.
I've seen a lot of people go stupid on piggyback junk.
The buy an OBD port datalogger, a bigger MAF, a translator to adapt the MAF to their ECU, an S-AFC and finally a BTM or MSD programmable ignition to take care of the timing.
Add the cost of all this useless junk together and you're not saving any money over going for a proper ECU.
I've seen a lot of people go stupid on piggyback junk.
The buy an OBD port datalogger, a bigger MAF, a translator to adapt the MAF to their ECU, an S-AFC and finally a BTM or MSD programmable ignition to take care of the timing.
Add the cost of all this useless junk together and you're not saving any money over going for a proper ECU.
0.0 BAR
Joined: Jun 2005
Posts: 0
From: WA
Re: really AFCs blow the engines?
Originally Posted by Rx7toCivic
read before you ------ anymore miss information
http://www.pgmfi.org/twiki/bin/view/...PiggybacksSuck
http://www.pgmfi.org/twiki/bin/view/...PiggybacksSuck
When you "richen" a car with an AFC, you are simply increasing the Map Sensor signal - the ECU responds to the increase in manifold pressure by supplying less fuel.
Thread Starter
3.0 BAR
Joined: Apr 2006
Posts: 2,057
Re: really AFCs blow the engines?
Originally Posted by d112crzy
I think there might be a slight problem with what the wiki says:
when you richen, you supply MORE fuel, not less. Less would be leaning it out.
when you richen, you supply MORE fuel, not less. Less would be leaning it out.
3.0 BAR
Joined: Mar 2006
Posts: 5,631
Re: really AFCs blow the engines?
Originally Posted by Walter
haha ok ok . the pic of your avatar is your car? look nice what setup has it? :1
what setup has it? :1f22b1
T3/04e 48/60 ar 57trim stage 3 wheel
LSD Motorsports Minitubular ss mani w/external WG
2-3"downpipe
3"mandrell exhaust/no cat-Magnaflow
T 3" mufflerIAL 38 mm Wastegate
TIAL 50mm BOV
DSM 450 Blacktops
Hallman Pro RX MBC
7x28x3 FMIC
Custom 2.5" Aluminum charge pipes by me anbd mike dope...
Chipped p-72 running crome pro
tuned at intec,
260 whp 270 tq @ 10 psi
Been beating the crap out of it every time I drive it for 6 months....only problem has been a snapped front motormount. Built bottom end coming SOON!!!
