Just a little excited after spending some more time with my newly adjusted RS-T, figured I 'd share.

I finally got enough balls to mess with my wastegate actuator. At WOT, my car would stay at 7psi and spike to 8. I backed out the screw 1/4" or so and now it stays at 5 and occasionally to 6.

I also installed the pressure sensor for the GReddy E-Manage and what a difference! At 4.6 volts, the additional injection starts taking absolute pressure from the sensor and adding fuel based on boost and RPM. For a person that basically knows jack about tuning, it's pretty amazing that it's running like it did before I installed the turbo, only 80 or so more horses. :D

I was really skeptical about the capabilities of an engine management that I only paid $315 for (I got a great deal), but I have to say, for the money, you can't beat it for what it is. My a/f gauge was showing the last yellow light and the first green light all the way to the top of 4th. It drove like this all day. That's something it's never done. In the past, it would drive like throttle by wire on a 3 second delay and the a/f gauge would always be blank. It was either too rich or too lean. I haven't even changed the maps! I just added the sensor. The only thing that changed was the ignition timing adjustment was enabled and the fuel was being added in the additional injection map rather than the airflow adjustment map.

My EGT's are ridiculously lower than before the pressure sensor. In 4th gear, 80 mph WOT, it was about 1350F (5 inches down exhaust manifold). The ignition retard, I still have no idea if it's working or not but the real time display says it's -4 degrees at full boost. It would be interesting to find out what it's really doing.

For a piggyback, I'm absolutely amazed at how smooth the car runs right now. The E-Manage wasn't even made to work on this car. The pressure sensor is definitely key though. It’s easy as garbage to adjust. I mean, hell I did it. I would recommend the E-Manage to anyone not willing to replace their entire ECU or that is just flat broke, like me. You will never hear me talk trash about the E-Manage again. I am a changed man. :lol:

The end.

-Brett

congratulations. i hope my car turns out as safe as yours! what kind of setup are you running? details please!

Welcome to the club of a smooth running AFI project. It's pretty rare and awesome, congrats. Keep the boost at like 6lbs and the thing will be plenty reliable too.

My car ran like stock on 5psi with a RRFPR. It was once I added all my fun stuff that it wasn't not exactly like stock. It's still plenty drivable if you know what you're doing though. Congrats.

congratulations. i hope my car turns out as safe as yours! what kind of setup are you running? details please!

It's basically all the WRX turbo parts into a 2001 RS sedan, i.e., turbo, exhaust, intercooler, fuel pump, crossmember, intake, etc... I also have RC440 injectors, ACT street clutch, and the Greddy E-Manage with everything but the E-01. I'm using the PC support instead.

I also posted a page on www.ricefest.com (http://www.cardomain.com/id/scoobed). :)

-Brett

My car ran like stock on 5psi with a RRFPR. It was once I added all my fun stuff that it wasn't not exactly like stock. It's still plenty drivable if you know what you're doing though. Congrats.

I would've done the RRFPR but I got a good deal on the injectors and E-Manage. There wasn't a whole lot of research to do prior to purchasing the E-Manage since I could count on one hand how many > MY00 RS's actually used the unit. I also didn't expect GReddy to be such a PITA when it comes to customer service.

There were a few people on the boards that I basically would've sold the entire car if it wasn't for them. :lol:

-Brett

...and I didn't really know what I was doing. :lol: :o

-Brett

is this on the 2001RS as stated in your profile?
I have been holding off, as i ve been hearing too much of piggy backs not working well with the newer ecus. how do u cope with close loop fueling etc? and does the ecu learn over time in open loop as claim by many as well?

am i right to say that with the emanage, u do away with the voltage clamp and the RRFPR? instead u add a pressure sensor and an extra injector, and upoin hitting the 4.6V for the MAP sensors, the extra injectors activitates to compensate for the stock sensors that reach their limits?

please pardon my many questions, but really keen to learn more about how u got it to work nicely on the newer ecu.

Nice work Brett! I need a ride in your new beast

teh brettmobile is finally streetable!! Now get that thing dynod! :)

is this on the 2001RS as stated in your profile?
I have been holding off, as i ve been hearing too much of piggy backs not working well with the newer ecus. how do u cope with close loop fueling etc? and does the ecu learn over time in open loop as claim by many as well?

Since it is a piggy back, there's not a whole lot you can do about this. I have gone months without resetting my ECU and have noticed a gradual deterioration in performance. The fuel is still adjusted and the car will run okay but the nice tune you get when you first set everything up won't last unless you reset the ECU every now and then. That is my experience with the E-Manage. I'm not sure how it will behave with the pressure sensor but a few more weeks and I should have a better idea.


am i right to say that with the emanage, u do away with the voltage clamp and the RRFPR? instead u add a pressure sensor and an extra injector, and upoin hitting the 4.6V for the MAP sensors, the extra injectors activitates to compensate for the stock sensors that reach their limits?

Although the E-Manage does control up to two additional injectors, that’s not how it works. I completely did away with the stock 280cc injectors and replaced them with 440cc injectors (60% larger than stock) and a WRX fuel pump. Since the ECU still thinks its controlling 280cc injectors and a smaller fuel pump, you have to tell it to back off on fuel a bit, otherwise it would keep sending the factory injector pulse and flood the garbage out of the motor. Basically the E-Manage is telling the ECU the motor is getting a lot less air than it really is. Because of this, the ECU sends a lot less fuel. It’s actually a very simple concept; everything on the car is a voltmeter and all the E-Manage is doing is dropping the MAP voltage going into the ECU.

The E-Manage not only has a built in voltage clamp but also an anti-stall as well, so you can control the upper AND lower limits of the airflow voltage. You can do away with the RRFPR and use larger injectors. The E-Manage has two 16x16 maps that control fuel, the airflow adjustment map and the additional injection map. The airflow adjustment map can be used to add or subtract fuel (+50%) based on throttle position and RPM. Since I'm using 440cc injectors and a WRX fuel pump, the entire 16x16 map is being used to subtract fuel (41% at idle). Once the MAP voltage hits 4.6 volts, the additional injection map takes over and starts adding fuel based on kPa (absolute pressure) using the pressure sensor and RPM. Basically, once the manifold starts seeing positive pressure, the E-Manage switches to the pressure sensor.

BTW: The highest injector duty cycle I'm seeing at full boost WOT is 65%, another reason why I chose not to go with a RRFPR. :)


please pardon my many questions, but really keen to learn more about how u got it to work nicely on the newer ecu.
No problem at all. :)

-Brett

Nice work Brett! I need a ride in your new beast

Just say when and where. Maybe this weekend? :banana:

-Brett

teh brettmobile is finally streetable!! Now get that thing dynod! :)

As soon as I can get someone with a half a brain up at Twilight. ;)

Hey, are you proficient in tuning 16x16 fuel maps? :lol:

-Brett

thanks for the detailed reply, dude! best of luck, and keep us updated! : )

I have to give a nod to the emanage. My car drove like factory when I was 10psi supercharged. I used every feature including the secondary injectors. I loved having instant boost and the ability to still get 370 miles out of a tank on the highway... I don't think many standalones (without hours and hours of tuning) could approach that.

i have not set mine up yet, but I think that you dont actually fake out the air flow signal to the ecu... The emanage intercepts the actual signal from the stock ecu to the injectors, so it can just turn them on / off at different times without lying to teh ecu about the amopunt of air coming into the motor. I am not sure on this, but knowing for certain that it does intercept teh injector signal, it would make sense it is done this way as then the ecu does not end up advancing timing ( very very bad) when it sees a lower airflow signal.

What settings did you use to make it work with the 01 ecu btw? This weekend I ditch the RRFPR and put in the emanage and 550's and have not found the settings to use with the MAP ecu.

Congrats on the tuning. I have the E-manage on my 93 which is running a 2.2 bottom end, 1.8 intake mani wiring and ecu, rx7tt fuel pump, td04L turbo at 9psi and red top injectors. I can't run any more boost without maxing out the injectors. As for drivability, my car is smoother with the emanage than my Mazdaspeed Protege is after the factory ECU reflash.

I do notice the resetting ECU thing though and it doesn't do too well in cold weather. All in all, I give it many thumbs up. I just wish I had a wideband to get the tuning even better.

Chad
93 2.2T

im hoping my perfect power system works as good as you guys say your emanages do. i was told it was the same as the emanage. lets hope so!!

Just say when and where. Maybe this weekend? :banana:

-Brett


Are you meeting us at towers on sat morning?

Yessir indeed. :)

-Brett

Any e-manage users out there have problems with it in colder weather. I live in NJ where we most definitely have 4 seasons and constant weather conditions.

Congrats on the tuning. I have the E-manage on my 93 which is running a 2.2 bottom end, 1.8 intake mani wiring and ecu, rx7tt fuel pump, td04L turbo at 9psi and red top injectors. I can't run any more boost without maxing out the injectors. As for drivability, my car is smoother with the emanage than my Mazdaspeed Protege is after the factory ECU reflash.

I do notice the resetting ECU thing though and it doesn't do too well in cold weather. All in all, I give it many thumbs up. I just wish I had a wideband to get the tuning even better.

Chad
93 2.2T

I don't know what is considered cold in NJ but last December I was driving my car around in 18 degree weather and it was running better than ever. Immediately after an ECU reset, my car was running 60-80 F colder EGT's than after a week or so without a reset. I noticed no abnormalities during the colder weather periods.

Our setups are entirely different so this is just my personal experience. :)

-Brett

what sensors are you running besides the eanage and boost? just timing?

All other sensors are factory, including crank/timing.

-Brett

Way to go on the tuning.

I too can atest to the ease of tuning via emanage. I run one with a pressure sensor as well and it really is amazing. I run 7psi all day long at about 90% IDC WRX injectors without even a hint of knock (I have a J&S as well). The emanage allows me to quickly retune the car wherever I feel like. Its great for someone like me that always has to be adjusting things.

Todd

Todd, can you email your maps to me? I have to retune now that my hybrid ej20g/18/25/22 is going in the car.

What's your setup?

Chad
(subachad@unique(nospam)motorsports.com

i'm dumb - repost

the more i read the more it sounds liek the emanage i need for my set up as well

have any of you had trouble with blowing ignition coils? (do you guys have them on the older cars?) i have heard that the emange has a problem with that when you are using the timing harness..

also how hard is it to tune, for someone who doesnt have much experience?

Heh, funnay you should bring that up....

Car recently has been misfiring like a sonofabitch. Pig rich, black smoke, the whole 9. Wires were replaced, plugs are brand new. Starting to look like a blown coil pack. I haven't heard of this being a common occurance with the emanage however.

-Brett

I have been thinking about eManage for a long time but am still hesitant to do it. But this thread has changed the way I am looking at it. I am also considering going to an F-con SZ but the tuning that would for it would be very expensive. For your timing map are you doing -1 deg for every 2lbs? <---- this question is for every one who is using this feature with there eManage.

emanage shoudl be great on an svx if you can figure out the settings ...and you instal bigger injectors.

I have been thinking about eManage for a long time but am still hesitant to do it. But this thread has changed the way I am looking at it. I am also considering going to an F-con SZ but the tuning that would for it would be very expensive. For your timing map are you doing -1 deg for every 2lbs? <---- this question is for every one who is using this feature with there eManage.

is that the average -1 degree for every 2lbs?

I think that's a good place to start...

-Brett

Wow...awesome set up.. and the picture on your page of you plowing the cones is absolutely amazing! Cheers to the photographer who caught that!

Wow...awesome set up.. and the picture on your page of you plowing the cones is absolutely amazing! Cheers to the photographer who caught that!:lol: :lol: :lol:

http://img.photobucket.com/albums/v62/mo439470/Cars/coffebreak.jpg
Or cheers to me that you couldn't tell it was phot4rchapped...


;)

-Brett

FYI to emanage owners:

http://drizze99.conforums3.com/index.cgi?board=software&num=1111549216&action=display&start=0