so would this not work with an emanage blue?

 

Very cool, Chris. That's an even better gain than I'd expected.

BTW- the filter poking through the hood- wicked.

 

As far as I know, the airflow output map is unique to the EMU. It's one of the reasons I went with it as opposed to the EMB. If the EMB has any kind of analog output that can be 2d mapped to RPM and MAP then it could be done, but I'm not aware that they have this capability.

It's kind of the same thing that bugs me about EMU sometimes- the unit has so much more potential than Greddy has exploited. Given the right software, an EMU could function as a complete standalone- all the I/O hardware is there and it obviously has the CPU resources to do it, they just never quite had the vision I guess. I just hope that someone out there who is better than I at microcontroller development is busy reverse-engineering the EMU platform to write a new set of firmware for it.

 

I had suspected some restriction, but like you, not nearly that much!
The "sleeper" look pretty well went out the window with the wing, air dam and race seat so I figured why not. Intake temps are MUCH cooler this way. I still have to build a removable cover for it. It was snowing through the holes last night.

 

I still haven't install my EMB, look at what you are doing to me..! Anyone want to get my EMB unit? :-( JK

 

I've successfully removed my AFM using Joe Perez's airflow output map.
Works great, power is up, spoolup is better, altogether a great mod !
Thanks Joe !

 

To continue reduce restriction before
the blowers, I hardly recommend
using bigger throttle bodys.

On my M45 coldside I installed a 70mm TB,
with 70mm tubing to the air filter.
(unfortunatly I havnt had time till now
to take out the RX7 AFM, will be next step)

Anyway, the car feels so much stronger,
so much more agressive.
On hotside JRSCs, I feel the elbow will be the
next restrictive thing. Chris solved this great.
Unfortunatly here in Europe his way
is not to recommend.

*another nice feature for 1.6 cars is
to get a variable TPS with the BTB.


Falk

 

Finally I got my 1991 NA working well with the e-Manage, without the MAF-sensor unit. I had a shed load of problems with idle which prevented me from moving forward to removing the ol' ugly flap unit. Cleaning the ISC and other idle control units, checking all grounding, et cetera, it all made no difference. I was already using e-Manage ultimate to trim fuel in the closed loop area, otherwise the car wouldn't run. Then Joe said that he didn't trim fuel at all in that area, using just zero's there, which puzzled me. Just using the 205 cc to 310 cc automatic injector resizing parameter didn't do the job for me, I had to trim fuel in many many cells. Then I thought, let's use the airflow output table to circumvent the MAF sensor and put zero's in the closed loop part of the map. Just give it a go, right.

Result: it runs smooth! Just a bit of hunting in the idle area, probably due to some grounding area I overlooked.

8 bloody weeks of searching under the hood and in the foot well, scavenging web fora and bugging people with questions.

Well, here's to the guys that gave me some clues into the right direction: Cheers to you all!

Timo

PS For idle issues on an NA, check Bill Strohm's work on forum.miata.net / tab: garage (http://www.miata.net/garage/ignition.html#idle).

 

eh when i remove mine do i have to put any mods for it said something about a 4 bar sensor??? can i just delete and leave the stock ecu and everything and not make any mods bec i got a turbo n i dont wna deal with tht ****

 

Not sure if you're serious, but...

In order to do this, you have to have an eManage Ultimate, and the corresponding Greddy 4-bar MAP sensor. There was a lot of speculation when the EMU first came out that a person could substitute a cheaper 2 bar or 2.5 bar sensor instead, and while this does function to a point it is non-optimal.

BTW, some suggested reading:
http://tinyurl.com/2j2at3
http://tinyurl.com/369pou
http://tinyurl.com/2stuua

 

K lol, i was serious, sorry about the "grammar" i just bought a Greddy E-manage Blue EMS so, we shall see what happens thanks anyways.

 

good luck!

 

Could this work if i have a aem F/IC

 

yes

 

any chance of an updated link for the maf removal?

 

Does any have a copy of the musanovic 1.8 maf delete write up?
(The posted link is dead.)

 

Looks like this link is a bit not alive. Would anyone by any chance have a copy or fresh link?