Hacked MAF, unsure?

[Tictakman]

Alright, i ordered a 2.75 id alum pipe from onlinemetals.com. i hacked my maf and jb welded it to the pipe. i also put in my 370cc injectors and walbro fuel pump in.

now my question, will my car run really rich until i put the turbo on? i bumped up my idle for now just to keep the car running but damn is it running rich. i plan on running a tial 38mm wastegate w a .4 spring i think it is(w a t3 turbo). just wanted to make sure that it was ok that i was running pretty rich on a stock setup besides the injectors, hacked maf, and walbro. thanks for the input.

Zak

[:: orion ::]

Make sure there's no leaks...my car was lean under load with the 2.75" ID.

And the beauty of a MAF setup is that it meters ALL the air coming in, so a lot of air under boost, or half that while N/A...it will compensate accordingly.

It wil run no different if the MAF tube size is correct for your setup...boost or not.

- Brian

[Tictakman]

so in order to not get a lean condition what should i do? i read your wrtie up on the hacked maf and you suggested the 2.75 id pipe. is there any way i can run this or should i get a smaller size?

Zak

[Tictakman]

another thing, why would my car be running so rich stock? could i use a fuel pressure regulator. i ordered a egt gauge so ill hopefully be able to tell what the hell is going on. any help would be great.

Zak

[:: orion ::]

Could be different for your car...who knows.

But N/A, mine ran great with a ~2.875" ID MAF tube. I'd bet you have some other issue causing the rich condition...bad O2 sensor, too high fuel pressure, etc...

- Brian

[Tictakman]

got ya, ill try another o2 sensor bc i did get a check engine light on when i did it. will that egt gauge tell me how rich or lean im running? what reglator are you running. i know i saw a post of FA about the regualtor u were using but im not finding it. also, what set up are you running now orion? is it the jwt ecu? any input on what i should run?

Zak

[Structure240sx]

the egt gauge will not tell you how rich you are running. how do you know you are running rich?

[Tictakman]

the exhaust is really smokey and before it wasnt at all. the idle also stumbles a bit so i bumped it up. also, you can smell gas if you put your head near the exhaust.

Zak

[Structure240sx]

pull the injectors and check the o-rings. mae sure when you install them with a screw driver to very lightly tighten them. bascially liek a finger tighten with a screwdriver. if they leak from the intake mani when you do this jsut tighten them a lil more

[Tictakman]

i found the culprit... when i put the hacked maf on i didnt think it was nessary to hook up the pcv vacuum hose. well i was wrong on that assumption. i put my finger over it and the idle smoothed right out. i ended up blocking it off with a bolt. what should i do when i get my turbo on though. should i still leave it blocked off?

Zak