gm maf vs safc

[ROOKIE1]

I read where you can tune with the gm maf setup . I know that is what the safc is for . My question is do you need the safc if you use a gm maf setup ? What would be pros and cons of one vs the other ?

 

[Quasimondo]

If you know how to tune your engine and you know your way around a datalogger, then you won't need an AFC and the translator will work just fine. The translator gives you the option of tuning based on airflow or from four RPM breakpoints at WOT. There are those that I know who have both an afc and a maft, but having both is very redundant.

 

[99GSX Swede]

You can run just the MAF and translator without the need for a SAFC. The Pros are that you can eliminate the restriction in front of the turbo by placing the MAF in the UICP. You can also vent the BOV at this point if you so choose. The tunning with the MAF is limited to 5% increments under standard tuning and 2% increments under RPM mode. With the SAFC you can tune down to 1% increments (i believe). A lot of people use both. I personally only use the MAFT and it works great for me.

If you do some searching there are tons of information already discussed on this topic as well.

 

[olmytsi]

Afc is more accurate with a visual display. Most people running a maft end up getting an afc. But like stated above, you can use the maft alone.

 

[spendone]

Afc is more accurate with a visual display. Most people running a maft end up getting an afc. But like stated above, you can use the maft alone.

I have bothe the AFC and the Maft so i think teh post above is about me. When I went to 680 injectors I couldnt fine tune the Maft so I got and AFC in conjunction with it.

 

[ROOKIE1]

If I have the afc , do I still need a logger ? Are both needed ? and why ?

 

[gheintz81]

If I have the afc , do I still need a logger ? Are both needed ? and why ?

Yes before you do any adjustments with the afc, get a logger, without it you really dont have and idea of what your doing to your car...BTW a Logger is used to monitor the different things going on with the motor..knock,injector duty cycles, timing, things you MUST watch...the AFC is what you use to adjust the A/F based on the logs. Have a nice day

 

[peckgsx05]

MAFT w/ DSMLINK

 

[ROOKIE1]

MAFT w/ DSMLINK

by maft do you mean gm

 

[olmytsi]

I got a good metaphore:

Car= tv
Afc/maft= remote
Logger= guide

You can flip thru channels but you will most likely not get anywhere anytime soon. You use the guide, see exactly what you want and use the remote to get there...get it?

 

[olmytsi]

by maft do you mean gm

Its referred to as the maft because its the maf+ translator setup.

 

[planblars]

i think it all depends on your goals because if you know your going to be going with really big injectors in the future the AFC isn't thats smart of a choice because it will be very hard to tune once you get up to 720's or bigger but he maf setup can be used with the dsm link sooo it really various....in my opinion anyway.......on what your ultimate goals are....if you some day plan on going with a larger then average size turbo that requires big injectors i think the maf-t setup is where i would go, but if you are going to get a big turbo and big injectors like u hinted towards in your profile i would go with the maf-t setup cause as i said before the afc is a bit harder to tune with big injectors....it can and has be done so i don't want anyone being like....i have a friend with huge injectors and a 60-1 and its awesome because its a rare case....so anyway in about the longest way possible i am saying i would go with the maf-t.......i would if i could do it over again

 

[dsm-onster]

I got the maft because the guy sold me the car had a 3" gm maf in the hatch when he sold it to me. I think you shouldn't go over 550cc injectors with the maft or afc. because of several issues.

1. Compensating injector flow with airflow makes the ecu want to go to a more agressive timing map. 1Gs run more agressive timing as it is and the ecu always gets what it wants even if it blows your engine .

2. You are going to have a hard time tuning out the deadtimes of larger injectors. I had a hell of a time with 650s. I could be bad at tuning. but before you go to either a safc or a maft go see if you have an eprom ecu in your car. if you do you can get dsmlink and a 2g maf from a bone yard all for under $700 and never outgrow your setup and tune it like it came from the factory with 1800cc injectors if so choose.

I say go with maft if you're going to stick w/ your 550s. Blowthrough, still tunable, no maf overrun, quicker spoolup, good product support.

 

[TurkF26]

personally, i will be getting a GM maf and running AFC2. The reason for this is i have a 6 bolt swap in my 95 GST. since the 6 bolt is in there i had to do the baromod for the CAS. so if i do not run an AFC to begin with, i run pig rich and gas milage sucks. This way, with the GM maf and the AFC i can eliminate a lot of problems at the same time and also compensate for the baro mod.

 

[ROOKIE1]

Lets redirect this thread . If I go with an e16g ported , flap job , an evo manifold , a 190 fp with my current mods . What else would I need to purchase . I looked at machv.com upgrade list ( no electronics) . Yet on tuners electronics . If setup is proper what do you need to adjust ?

 

[olmytsi]

You will need a logger and a fuel control device such as the afc or maft and you should be good to go. Then you can lean her out to match the fuel to the car's needs.