KPNITCLAC

i have a 96' that i wanna run at roughly 8psi and nothing more. it sill needs to pass the obd2 emissions test. i have an 02 clamp from flying miata, bipes acu, turbo manifold for a t25 turbo, intercooler, bov, and an aem wide band. Now my main concern is making sure i have enough fuel. What type of fuel management should i purchase?

jbrown7815

iTrader: (1)

Megasquirt. You're also going to need injectors.

KPNITCLAC

i wanna use my factory ecu and i was looking at 300cc+injectors possibly.

soviet

iTrader: (10)

Run plug-and-play standalone and swap ECU for emissions?

jbrown7815

iTrader: (1)

You'll at the minimum need some sort of piggyback ECu then. You have to have something to tune it with...

jbrown7815

iTrader: (1)

Or this. AKA Megasquirt, AEM, etc

KPNITCLAC

so your saying i can run a megasquirt and still pass my obd2 test?

shuiend

iTrader: (24)

You can use use an AFPR to control fuel along with the 320cc injectors and o2 clamp. That along with bipes should let you run close to 8psi and still be obd2 complaint.

KPNITCLAC

now there are different ratio ones like the disc type that are 8:1,10:1,12:1 or the begi one.
which one would be the correct type?

gorillazfan1023

iTrader: (1)

As much as I hate to say it, a power card or voodoo box will pass emissions and be easy to install and supply fuel for around 7-8psi depending. Now you'll eventually want more boost and realize the power card/voodoo box sucks and end up with a stand alone and finding someone who's "really good" at emissions testing, like I have. Or maybe you won't and it will suffice. Either way its not a terrible way to get a basic system running.

dustinb

AEM F/iC. Boomslang makes a plug and play harness.

KPNITCLAC

So does any body run a fmu anymore? Im trying to stay away from running a different or piggyback ecu to get enough fuel.

dustinb

The aem is a piggy back so you keep your stock ecu.

KPNITCLAC

I would like to use a fmu if somebody could tell me what ratio to use. If that does not work then ill get some sort of ecu.

shuiend

iTrader: (24)

Honestly I would give Begi a call and talk to them about it and then order theirs. It is probably one of the best on the market and will be worth the change. They will also probably be able to help you set it up to.

Here is a link to more info on them.

18psi

iTrader: (76)

Run the one that will give you 14.7 AFR at full boost.

But seriously,
I like how you're trying to be spoon fed without coming off like a lazy noob.
Throw it on there, plug in a wideband, and start adjusting.

clayton351

iTrader: (1)

Im running a 90 miata with a msd boost box, t25, cartech fmu, 305cc injectors, 190hp fuel pump and rx7 afm. I have it set for 10 psi with no issues other than running overly rich under boost but I just havent had any spare time to tweak the fmu and afm to get a smoother afr. Most guys on here feel its better to go ahead and spend the extra cash for a MS than use fmus and such.

As for your questions I would agree with going with the BEGI fmu for the easier adjustability.

18psi

iTrader: (76)

How much would all of this go for:
new?
fair market value used?

How much does an ms1 and rx7 injectors cost:
new?
fair market value used?

What is the limitation on the former vs the latter?

If you answer these questions honestly and correctly, you'll kick yourself in the foot for thinking its "more expensive".
I can kinda sorta understand the whole "obd2 compliance" thing, and even then I'd much rather just swap to stock ecu/injectors for the annual or bi-annual test. Takes about an hour working slowly.

hustler

iTrader: (6)

When I see a thread about anything OBDII, I close that tab and move on.

triple88a

iTrader: (2)

Stock injectors/(stock fuel pressure) run out of fuel at 6psi.