Rb25 EMS

Discuss the RB20, RB25 and RB26 series engines.
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StricNyne
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Who is running the EMS ? i talked to a few people about their choice of engine management and i noticed most people are just using a SAFC and boost controller, is anyone else even running a power fc, i was thinking of selling mine, and going for EMS, but i wanna hear some feedback if anyone has it


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240sxed
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StricNyne wrote:Who is running the EMS ? i talked to a few people about their choice of engine management and i noticed most people are just using a SAFC and boost controller, is anyone else even running a power fc, i was thinking of selling mine, and going for EMS, but i wanna hear some feedback if anyone has it
Im probably going power fc

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JonPowell
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That helps him alot....

EMS is cool, but I think its a little overkill. I like how Power FC automates most things yet still give you the ability to fine tune if you want to.

Joe
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StricNyne wrote:Who is running the EMS ?
im not but a good friend/customer at the shop is. he is out of town so im taking the liberty to play with it and drool

edit: map sensor is also going on but not pictured. if ANYONE ON HERE decides to go EMS do NOT keep your MAF. MAP > MAF X100000

Joe
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as for "overkill" i dont think so. sure it costs more money than a PFC but you get so much more and it really is a better system.

EMS > All

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JonPowell
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Kamin wrote:edit: map sensor is also going on but not pictured. if ANYONE ON HERE decides to go EMS do NOT keep your MAF. MAP > MAF X100000
Be careful with generalizations like this, the MAF actually is a much more acurate method of measuring intake air. the MAP measures pressure, not actual air flow. The MAF is used on cars because its alot easier to fine tune for emissions with a MAF. The reason it sucks on boosted cars is because of the need for a closed system after the MAF. The MAP doesnt care about anything that happens BEFORE the butterfly, just whats going on after it...in terms of pressure only. In order to tune almost as accurately with the MAP sensor you also need an intake air temp sensor...and even then its not as close.

Joe
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JonPowell wrote:Be careful with generalizations like this, the MAF actually is a much more acurate method of measuring intake air. the MAP measures pressure, not actual air flow. The MAF is used on cars because its alot easier to fine tune for emissions with a MAF. The reason it sucks on boosted cars is because of the need for a closed system after the MAF. The MAP doesnt care about anything that happens BEFORE the butterfly, just whats going on after it...in terms of pressure only. In order to tune almost as accurately with the MAP sensor you also need an intake air temp sensor...and even then its not as close.
right, i know using a MAP is only guestimating airflow but on a boosted car it works alot better. IAT + MAP + TPS = damn near MAF accuracy.

Yellow4g63
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I was going to wait on AEM.... but they wouldn't give me a str8 answer about when it was going to be relased So I bought a PFC new. After I buy the software for it and a new Maf I will have spent $1600 on it. BTW anyone want to buy a pfc for there Rb20?

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JonPowell
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Kamin wrote:right, i know using a MAP is only guestimating airflow but on a boosted car it works alot better. IAT + MAP + TPS = damn near MAF accuracy.
I like MAP myself better also, if an intake pipe blows off, just drive NA till you find a screwdriver!

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NYCRB240sx
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PFC=1200 EMS+wiring harness=2000-2200....you do the math....more parts in the car?...i know i wouldn't mind

Yellow4g63
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NYCRB240sx wrote:PFC=1200 EMS+wiring harness=2000-2200....you do the math....more parts in the car?...i know i wouldn't mind
Where did you get those #'s? you can get the EMS street priced around 1600 without the wideband. You don't need another wirring harness cause it plugs into your factory harness.

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eh?
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How much and where did he get the EMS from?

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Carl H
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blow thru is working pretty well for me.

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NYCRB240sx
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Yellow4g63 wrote:
Where did you get those #'s? you can get the EMS street priced around 1600 without the wideband. You don't need another wirring harness cause it plugs into your factory harness.
my friend at Rb told me you have to get the ems and the wiring harness. so sorry if i was wrong, just repeating what i was told. as for the prices the PFC is what i got mine for but the EMS is what my friend at Rb told me they run with the harness.

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NYCRB240sx wrote:
my friend at Rb told me you have to get the ems and the wiring harness. so sorry if i was wrong, just repeating what i was told. as for the prices the PFC is what i got mine for but the EMS is what my friend at Rb told me they run with the harness.
RB25PFC with commander?

Joe
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NYCRB240sx wrote:PFC=1200 EMS+wiring harness=2000-2200....you do the math....more parts in the car?...i know i wouldn't mind
those are MSRP, if you pay that you are an idiot. i sell the EMS for hundreds less than that.
eh? wrote:How much and where did he get the EMS from?
he got it through me, and im not gonna say what he paid because its a good friend.

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NYCRB240sx
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Yellow4g63 wrote:
RB25PFC with commander?
ya rb25det power fc and commander for 1200

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Dano
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phase2 is selling their rb25 pfc and commander for $989 and they are one of our sponsers ....

-Dan

Yellow4g63
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240sx2nr95 wrote:phase2 is selling their rb25 pfc and commander for $989 and they are one of our sponsers ....

-Dan
How much is that after Tax and shipping?

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eh?
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ok, can you get me one? I need one ASAP.

Joe
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how ASAP? AEM has sold out twice in 4 weeks so far.

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NYCRB240sx
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240sx2nr95 wrote:phase2 is selling their rb25 pfc and commander for $989 and they are one of our sponsers ....

-Dan
that is a great price and phase2 is a great company too, i have gotten parts through them before. unfortunatly when i bought my they did sell them and i paid a nice little premium to try and get mine quick...i almost had a friend pick it up in japan and he told me there it would have been 1500 with commander. but i say spred the word.


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eh?
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Great company, really bad price. Nengun.com has then for $797 shipped with HC. I paid ~$790 shipped for just a PFC from them a year ago.

Nevermind Kamin, I ordered from Horsepowerfreaks, who will have it drop shipped from AEM tomorrow.Price came out to $1940 shipped with IAT and MAP sensor. I will honestly say unless you are looking for more power than the Q45 Maf can meter the PFC is a better choice . The MAP and IAT should have been included in the price IMO.
Modified by eh? at 6:25 PM 6/24/2005

Joe
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what about a UEGO? no UEGO with that price?

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eh?
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No uego I have a Zeitronix WBO2.Overnight AEM 30-1621 Skyline, AEM, Engine Management Stand Alone EMS (93-98) RB25DET M/T only 1 1,681.63 1,681.63

Overnight AEM 30-2010 AEM, Sensors Inlet Air Temp Sensor Kit 1 49.50 49.50

Overnight AEM 30-2130-75 AEM, Sensors 5-Bar Boost or Exhaust Gas Pressure Sensor Kit (Stainless Steel sensor body with 1/8-NTPF male thread) - Can use AEM 30-2113 instead 1 140.01 140.01 Total Products 1,871.14 Shipping 70.00 Total 1,941.14

With UEGO Nissan Skyline (93-98) RB25DET M/T only (Built in Wideband) 2,027.70

Yellow4g63
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eh? wrote:No uego I have a Zeitronix WBO2.
A fellow Zextronix user . Did you get the map sensor for the Zextronic? I think he said that it's the same Map sensor that the AEM uses, not too sure I'll have to email him again.

Joe
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AEM uses a GM map sensor.

also, the advantage to the AEM wideband is it plugs into the EMS so you can use the autotune feature.

Yellow4g63
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Kamin wrote:AEM uses a GM map sensor.

also, the advantage to the AEM wideband is it plugs into the EMS so you can use the autotune feature.
The Zextronic will out put to the EMS

Joe
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good to know

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eh?
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I didn't get the map sensor, I was planning to use a cheaper 3 bar GM map sensor and log with the FC datalogit. I don't believe that is a GM part. I think with the AEM you have an option of using a GM map sensor or any 0-5v map sensor. Samething with autotune, all you need is any WBO2 with an output.


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