really AFCs blow the engines?
 

after i did read the wiki ago some weeks , and i'm seeing severals guys runing still with AFCs like VAFC or so , and they not blown his engines... really that's true if you run with a AFC , you will blow your engine soon? or that not happend in all cases? ???

Re: really AFCs blow the engines?
 

with an afc you are tricking the ecu into seeing different vacuum reading then the motor is acutally seeing. So when you take fuel out you make the ecu think you are running more vacuum this less fuel. the problem with this is the stock ecu will run more timing in higher vacuum readings. So when you scale with the afc for bigger injectors you end up advancing the timing, more timing means knock and knock blows motors

Re: really AFCs blow the engines?
 

i know but.. the safc you cant to adjust the timing? or there are not no "AFC" that you can to adjust the timing? Emanage neither?.... i see my ecu chipped soon! ;D

Re: really AFCs blow the engines?
 

Walter you can adjust timing with Emanage but you have to buy extra features to use the timing and they cost a lot of money. around $800us so really you could buy a chipped ecu $200 and then pay someone to tune your car for around $200-400 depending on what they charge and you still saved money and have a better running car.

the people running afcs safely are not running very much boost that = no HP. I know your gunning for your friend with the STI so your going to need a chipped ecu and crome so you can run a manly setup. :6

Re: really AFCs blow the engines?
 

The people that run an AFC are people that have basically no understanding of how ECUs work.
No piggyback will make your car run nice on much larger injectors.

Re: really AFCs blow the engines?
 

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.

Re: really AFCs blow the engines?
 

How do you get passed the map sensor?

i was thinking of using one for 14psi but didnt know how

Re: really AFCs blow the engines?
 

oh, i see , too i see that you have good memory about my friend with his STI haha , i remember that STI's friend runing with SAFC and AVC-R but i dunno if his car blow or not sometimes..

About the money yes, the emanage is very expensive, and i would like not to pay to other guy for some day to tune my car, i would like to do myself :-[ (if a read the complete wiki from PGMIF.ORG , i will learn to tune a ECU? cuz i've seen that the wiki has great info but i dunno if here there are all the necessary for to know to tune a ecu).

i know that with a safc you can to adjusta the 50% +/- the capaticy to your injectors, right? but then, if you can largest injectors , you cant to ajustar the 50% +/- from those injectors? (i know you will need a better fuel pump) ...

ey brothers, ty for your answers. i appreciate it. ;)

Re: really AFCs blow the engines?
 

Some ppl also run a Universal Boost Timing Retard. But with the price of that and the S/VAFC, you're better off with crome.

Re: really AFCs blow the engines?
 

i had a buddy who was running an safc with the BTM on his celica and it rocked O0

Is that true that the safc doesn't advance timing like the vafc?

Re: really AFCs blow the engines?
 

AFC'S work. they get the job done. Youll blow your motor only if your a dumbass and get boost happy. You do have to remember your still on a stock block.

Re: really AFCs blow the engines?
 

read before you ------ anymore miss information
http://www.pgmfi.org/twiki/bin/view/...PiggybacksSuck

Re: really AFCs blow the engines?
 

Share your SAFC settings with orher people ;D
https://www.homemadeturbo.com/forum/...?topic=62734.0

Re: really AFCs blow the engines?
 

i did read it and its a great info but ago some days i did talk with some friends of mine and he did say me that i havent no idea what i talking ... ::) so, this article is totally true?

i'll continue reading of this Wiki :y

Re: really AFCs blow the engines?
 

Chipped ECU, Crome, and tune EOS....Or.... Booom!!! O0

Re: really AFCs blow the engines?
 

haha ok ok . the pic of your avatar is your car? look nice :y what setup has it? :1

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.

Re: really AFCs blow the engines?
 

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.

Re: really AFCs blow the engines?
 

yeah! i thought too that this sentence was wrong but... i see now that i'm right. :6

Re: really AFCs blow the engines?
 

Thanks man...

f22b1
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!!!

Re: really AFCs blow the engines?
 

just out of curiousity, when do you start seeing boost and when is full boost? thats a damn small turbine.

Re: really AFCs blow the engines?
 

nice setup, and like saids d112crzy, that's a small turbine! nice man, nice setup :y

Re: really AFCs blow the engines?
 

Welp its on a f22b1 that redlines at 6500. With this turbo/setup I get full boost by 3500, and it makes max power at 6200. PERFECT for my app... The powerband is SOOOO much fun, instant boost above 3300. At a roll in 2nd about 40 you hamm,er it and it smokes the tires (270 tq baby). It doesnt seem to die out up top... Im using the f22 trans also with the loinjger gears so the tq really helps, as does the small turbine - with a very very fun powerband.

Im in the process of building a block with sleeves, pistons, rods, but probably no major headwork (except a minor port job), so stepping up to the 63 turbine, while it would give me a bit more up top, id have to wait abnotherr1000 rpms (that a stock valvetrain f22b1 cant afford)... Thanks for the compliments. I heart my honda!!!

Once I get a cooling system issue nailed down, Im going to retune for 13-15 psi on the stock block. Looking for 300-325 whp Ill keep yall updated. In the market for a new tranny too to stuff an LSD in.

This is my first Honda effort alone a turbo effort. Thanks for the comments. Here are a couple pics of the install:
(Note AC..CC, AND PS!!!)
http://i44.photobucket.com/albums/f4/bigdaddyvtec/v.jpg

http://i44.photobucket.com/albums/f4/bigdaddyvtec/w.jpg

Re: really AFCs blow the engines?
 

wow , nice rebuild :o and imagine how you can run with that turbo... spool fast until 6.500 .. nice! :y

what manifolds do you use? i would like when i to boost my car, to keep the PS and A/A :y...