Emanage users, help me

[LEMHEAD16]

When using the GReddy pressure sensor, what do the numbers down the left sid eof the graph represent? A voltage from the sensor or the actual boost pressure? Any help would be appreciated I just finished my car up and I need to know how to tune it!!!

[Red-KAT]

You on E-Manage Blue?

I think you can change what it displays. You need to change it and have it display PSI!

[LEMHEAD16]

I am using blue but can't figure out how to get it to change from voltage to psi

[virus77]

in the main parameter menu you have to select greddy boost pressure sensor then it will allow you to select boost in the maps. In the map screen on the top left it displays which units the map is running off of, however PSI is not one of them you are going to have to use measurements like BAR.

[SloS13]

related question: can you also tune vaccum with the boost sensor?

[Red-KAT]

Yes, it will also show you're vaccum. I always idle at -11ish psi.

(I forgot the Blue program is only metric)

[LEMHEAD16]

Okay thanks for the help i figured it out . Now for the next question. Is there a formula for how much fuel to add per psi. I just want to get somethign safe in the computer so I can get it to the dyno! YEAHHHHH!!!!

[virus77]

Stay off boost getting to the dyno and you will be fine, its not that hard to stay off boost. To be on the safe side input +30 all in the boosted side of the map so if it does hit boost it will be overly rich.

[LEMHEAD16]

thanks for the input

[Colorado_S14]

My reccomendation is to get the ignition harness and tune timing according to boost. Set your base timing to 20* if you are DOHC, then use the pressure sensor to retard timing 1* per psi for every lb over 4psi.

You will get yourself into more trouble if you leave timing and just tune fuel. I say leave the fuel at 11.5-12:1 A/F ratio under full throttle and make sure that the timing is where you need it and you will be in much better shape.

[LEMHEAD16]

Thank you for the input. That is exactly what I am doing. I just need to know how to set the maps to the right pressure.

[LEMHEAD16]

If I retard timing 1 degree per PSI do I need to change the base timing on a SOHC? I am going to the dyno on thursday so I want to get everything set!

[Red-KAT]

No... make sure the car has the correct base timing set.

Then in the software for the E-Manage it has a graph that you can tell it exactly where to remove timing. (Just like the tuning map for fuel but for timing)

Made a pic for you... Of corse mine is in PSI you will be in some metric just but you get the idea. ? right ?

[LEMHEAD16]

Thanks red. That is how I have my timing set up in the ignition retard map. Can you make a picture of your additional injection map also. Right now I just have everything above two psi at +25% in case I get into boost before I get into the dyno. Did you just do the same thing where you add a certain amount of fuel per PSI or do you tune every cell based on rpm and psi?

[DRIFTEADOR]

if i were you, i'd get a scan tool, something like this,http://cgi.ebay.com/ebaymotors...QrdZ1, to verify your total timing. Red-kat, doesnt have to worry about this cause his emamage ultimate doesnt manipulate the maf signal to controll fuel. the blue and all other piggyback do and by doing so they alter (advance) timing. to make tuning easier, use the airflow adjustment map to trim fuel to a single number across the entire map, say -50% across if using injectors twice as big, and add from the additional injector table.

[LEMHEAD16]

I don't think that will work on the single cam motor, will it?

[Red-KAT]

My injector map would not work right for you're turbo and injectors. I have raised my fuel pressure and hacked my map up all over the place. I dont want you to run my map and have a chance to blow yer engine.

Also this is the same timing map I ran on my E-Manage blue. It does work better on the Ultimate but I am still pulling too much. I have a scan tool that i can see my total timing.

[DRIFTEADOR]

I don't think that will work on the single cam motor, will it?

if you meant the scan tool, no, its for obd2. sorry

[LEMHEAD16]

Red I understand that I won't be using your numbers on my engine. Every engine is different even with the same set up. I just wanted to see a picture off the map. I am a visual learner so i pick up on things faster if I can see something similar to it. Thanks for all you input though it helps alot.

[Red-KAT]

Alright dude I took a snapshot of my map. (Note I have only tuned up to 6psi with my Ultimate.)

I added a caption to the pic.

Note change about to above 9.3psi

[LEMHEAD16]

So I assume your engine starts making boost around 2500 rpm and thats when you start adding fuel. right

Why do you add fuel when the engine is in Vacuum? I thought that if you were not in boost you would need any more fuel than stock but, you add alot more in?

Thanks for doing that I was going to go to the dyno tommorow but the shop I was going to go to got rid of thier dyno in the last month or so. I guess I am going to get a wideband and try it myself.

[DRIFTEADOR]

chances are half of those cells will never be used in real world conditions but you still fill them just in case. its not likely the motor will see 20psi at 1500rpm or, on the other end of the spectrum, 12psi vacuum at 7000rpm, most likely doesnt spool at 2500rpm either (unless its pulling a tractor ). with a 3d map (load/rpm/fuel as opposed to safc's 2D, throttle/fuel only) it doesnt matter if you start adding fuel at 500rpm while in boost cause it wont read it. like red-kat explained, it takes from the x (load) and y (rpm) axis and figures how much fuel is needed based whats filled in the cell, or interpolated cells.

[Red-KAT]

Yeah same thing he said... the vaccume chart is what came with the greddy stock... I have changed ever one I hit to 0 becuse it was rich or in closed loop and the ECU makes it 14.7 anyways.

I'm not sure what PSI I'm at, at 2500... My turbo does spool quickly with the E-01 and when my wastegate's not leaking...

[SloS13]

Speaking of Emanage, what wire to you cut in order to make timing adjustment?

[Red-KAT]

The one wire on you're ECU pin out that sez "Ignition"