hacked MAF people post here

[j-z]

ok ive been doing extensive searching for the past few days. i still have some questions that i would like answered. first off i would like to know how many people are actually running the hack and for how long and how much boost. also state if youre using it as a blow through or a pull type. also i would like the experienced people to tell me if this setup would work as a blow through setup. im gonna run 2.25'' charge piping, then a couple of inches before the maf i will increase the piping size to the appropriate 2.8'' and have it maintain that size all the way to the throttle body. im gonna place the maf in about a 8-10'' straight section of pipe for a uninterupted reading. now will increasing in size from 2.25 to 2.8 affect the reading in anyway or is just the area around the maf is all that matters? also while reading up i read that the s13 is different and nobody has attempted to do it yet. that i know of. i had a idea that would probably work. place the maf in the inake as a pull type. then a couple inches before the maf drill a hole. then drill the same size hole after the maf. get a bent piece of tubing to connect the two holes you just drilled and weld em up. now for the size of the hole that should be drilled i have no idea. ill let the physics people do that. so do you get what im saying? its basically the same concept with the s14 hack using a bigger pipe to house it and let it sneak air by. well this is doing just the same thing but in a kinda different way. you just dont have to deal with messing with your s13 maf. now i dont if this has been done or not but it seems like it would work to me. also for my setup i really dont want to recirculate the bov. so im hoping there is people that have it setup this way with good results. i dont even have my s14 yet to try anything out so thats why im asking alot of questions. sorry, i hope you can understand everything that i wrote.

[hannibal]

i had a idea that would probably work. place the maf in the inake as a pull type. then a couple inches before the maf drill a hole. then drill the same size hole after the maf. get a bent piece of tubing to connect the two holes you just drilled and weld em up

I think it would be hard to get the air to flow thru the bypass pipe.

i've read about something like that before. IIRC...the regular filter and intake piping is left intact before the MAF. A pipe (of calculated size??) attaches after the MAF and leads to a second filter. this way your MAF only reads some of the air going in.I dont know if its been done or its just an idea. Of course you'd be using a pull thru setup and probably have to use a bypass valve.

But youre looking for an S14 so i guess none of that matters...

a guy named Orion (i think hes on freshalloy too) has been running a hacked MAF for a little while. i think he has some pics on his site.

[j-z]

yeah i know about orion. i just wanna know about others that have been running this setup. i know none of that stuff matters to me about the s13 maf but i was just thinking of an idea for them. i also just thought of what you said. just draw air in after the maf like through a little filter.

[daniel240]

im going to use it on my s14. i already have it hacked. im still finishing my turbo setup though so i havent been able to test it. i should be done in a week or 2 though. im planning on running 5psi daily and 8psi max occasionally. im putting mine before the turbo.

[j-z]

damn the more and more i think about it the more i steer away. i would rather just pop in whatever size injectors i want say 450s and a walbro then tune with an afc. thats the same exact setup im running on the lude and i have 0 problems what so ever and i havent even tuned it. but with the 240 i will get that biotch on a dyno within a week after boosted. but then again i may change my mind. i still want to hear some success stories first. its just that with running the afc and the larger injectors i will have room left to run more fuel with the bigger injectors. because i know i will want more already being an addict. doing it that way seems more logical than doing **** twice. but now i read that around 250whp the maf will be maxed. so what do i have to do to go around this obstical? i know why its maxed out i just want to know how to overcome this. thanks

[hannibal]

I'm not sure if a AFC can handle injectors over 370cc. It may not be able to trim them down at no or low boost. I read that the S14 MAF (hacked or not) maxes around 250. Then folks step up to a Cobra or Z32 MAF. But then you would have to reprogram youre ECU (JWT) or use e-manage. I dont think other piggybacks can adjust for the new MAF.

Im gonna look into e-manage some more. Ive heard lotsa good things about it.

[j-z]

ok well i did some research again last night. so the z32 maf is good for about 300 whp? i read that it wires up with no problems and you can use an afc for adjustments. with an afc you can trim out up to %50 so i think itd be good with 450s. is there any cheap injectors larger than 370cc that will drop in?

[AceInhole]

the S-AFC can correct up to 50% airflow up or down. more than enough range to compensate for 370cc injectors.

if you get the AFC and are willing to shell out the cash for dyno- tuning, definitely go with that and the z32 MAF over the hacked MAF. the only great thing about the hacked MAF is it's inexpensive and pre- tuned.that would change of course if someone posted the correction settings for the z32 MAF without using the S-AFC's built in conversion (from a KA to VG). that would allow a larger range of tuning (rather than be confined to what's left after compensating for larger injectors).

I started the hacked MAF around January of this year, so no one in the 240sx community has been really using it for a "long" time. the first time I ever ran the hacked MAF was Jan 8, 2003 (just did a FA search :p) I had it running low boost a couple weeks later. Orion ran the hacked maf in feb. shortly after, and then quickly turbo'ed it. thanks to him the hacked MAF has had a lot of dyno testing (i've only tested it once, recently).

I have beat the crap out of my car since I started running the hacked MAF, autocrossing weekly with 3 different clubs, doing a drag event with the new england 240sx club (http://www.240sxone.com), and beating the car around as my daily driver, driving to hockey tournaments in PA, NJ, NY, MA, and ME (I live in CT). I've also recently gone to the DC area twice. In my book, the hacked maf is very reliable, very proven.

lol... i just took a look: first post about the hacked MAF is on 05/02/02. took me a damn long time to actually do anything about it :p Theorizing large injectors on a stock ECU....

[daniel240]

hey, ace, whats your email, i have a few ?'s to ask you about the hacked mafs. thanks-daniel

[AceInhole]

just PM me on here. i don't check my e-mail nearly as often as i should

[WDRacing]

PMs are disabled...

[AceInhole]

PMs are disabled...

Doh.

e-mail = [email protected]

can't promise any quick responses though.