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Old 11-21-2014, 10:48 PM   #1
Benjamos86
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Join Date: Sep 2014
Location: 757 VA
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1993 Impreza L
Aqua Frost

Default EJ18t timing question

Quick question I was hoping someone could answer.
Would it be necessary to pull timing on an ej18 with a td04 running 5-6 psi on 93 octane?

Running ej22t injectors,
walbro 255,
cartech rrfpr.

Just looking for some answers before I start buying stuff. Thanks for any info!


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Old 11-22-2014, 01:02 PM   #2
geronimo81
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Location: San Ramon
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1996 Turbo Outback
9psi on 91 No EM

Default

No, but you might want to reconsider the larger injectors. Your car is not calibrated for them and if you add a RRFPR on top of that you will never get it to run right.

Just try the RRFPR with a Walbro 255 HVLP pump at 5psi and get a wideband to see what your AFR's are.

I assume that you've done some research and realize that you should not do this unless you can afford to replace the motor, trans etc if it breaks.

I did this on my EJ22 Outback and ended up settling at 7psi on stock injectors with a RRFPR. It never ran perfect but it was so much better than stock. I bought a PP6 but never got it installed before I got T-boned and the car was totaled.
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Old 11-22-2014, 05:26 PM   #3
Benjamos86
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Yea if I blew it is just throw another stock 1.8 in it and sell it most likely. I already have the ej22t injectors, got them in a trade deal.
I'd rather have it done right than half-assed, but also don't want to spend much.
If I decided to ditch the rrfpr idea, would a stand alone like emanage blue be my best route or is that outdated by today's standards?
I was looking at megasquirt, but it doesn't look to be too popular within the subaru crowds.
Looked for the apexi super itc on ebay and didn't even see any for sale.
So just wondering basically what would be the next best idea and inexpensive route for engine management if not doing an rrfpr. I'd like to be in this project for under a grand if possible and never plan on boosting more than 6 pounds so it stays somewhat reliable.




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Old 11-22-2014, 07:39 PM   #4
bomberlegacy
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if staying at 5-6psi, get the pump and rrfpr. Done. if going more, bigger injectors and a piggyback would be best.

emanage or aem fic
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Old 11-22-2014, 08:35 PM   #5
Benjamos86
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Ok. Thanks for the help, I just wanted some input from others before I would go and waste money on stuff I don't really need.



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Old 11-26-2014, 02:37 PM   #6
no694terry
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Arent the Cartech's adjustable? I dont pull timing til 10psi so you should be fine at 6. My car NA did a great job of targeting AFR's down to 11 on its own. I would just put a 4:1 RRFPR on it and call it a day. I recommend a Innovatice LC-1 wideband and if you have lean issues then try the 280cc's from a 2.2 or 2.5. I THINK the 1.8 had 240's but can confirm right now.
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Old 11-26-2014, 08:14 PM   #7
Benjamos86
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They are which is why I was looking at them rather than the vortech unit. Generally Ive been reading that most people aren't pulling timing under 10 like you said.
I do plan on running a wideband and something cheap to detect knock.
I do have another concern, my car has a/c and I'm not trying to lose it and I've read of people having problems with fitting the wrx TMICs cause of the a/c line by the firewall.
Also I have an EGR which I've read will interfere as well.
So is TMICS out of the question unless I delete the EGR and bend that ac line?
Seen that the 06 WRX TMIC is supposed to be the smallest so I'm wondering if I can make that work without much issue or if I should just do FMIC.


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Old 11-30-2014, 04:19 PM   #8
no694terry
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There a slanted one from the early jdm ej20 that "might" fit better
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Old 12-01-2014, 07:38 AM   #9
Benjamos86
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Ok good to know. Still trying to figure out if I'm gonna have to delete the egr to make one work


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Old 12-05-2014, 10:30 PM   #10
geronimo81
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Vehicle:
1996 Turbo Outback
9psi on 91 No EM

Default

I don't know about the EGR since my car didn't have one. The AC line can be tucked under the dog bone.

You can read through my build journal for ideas.

http://www.rs25.com/forums/f145/t190...t=geronimo%27s
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Old 12-05-2014, 10:39 PM   #11
geronimo81
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Member#: 154586
Join Date: Jul 2007
Chapter/Region: BAIC
Location: San Ramon
Vehicle:
1996 Turbo Outback
9psi on 91 No EM

Default

Oh that's weird........oops
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Old 12-07-2014, 03:30 PM   #12
Benjamos86
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Aqua Frost

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Nice thanks man


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Old 01-01-2015, 12:55 PM   #13
Benjamos86
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Aqua Frost

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So now I have another stupid question, I'm looking at my options for exhaust and have come across a full stock 2003 wrx turbo back exhaust for cheap with super low miles. I'd rather buy this and make necessary fitment modifications to it than buy some ebay junk. So my question is this,

I plan on running UEL headers that are for the NA motors, along with a Subachad up-pipe. With this set up I am curious if and how much the sub frame will have to be cut to clear the wrx down-pipe. Also it looks from the pics of Subachad's up-pipe that the down-pipe may have to be cut and rotated where it bolts to the turbo since his up-pipe has the turbo mounted in a way that points the turbo towards the passenger side headlight rather than straight towards the front of the car with the down-pipe flange facing straight towards the back of the car.

Curious if anyone has any input on this idea, I'm running out of funds for this project and while I'd love to buy both of Subachad's up and down-pipes and have an exhaust fabbed up to suit this, I just can't afford to do this so I'm hoping I can make this set-up work without much issue. I'm doing much research before posting to keep my questions to a minimum but I appreciate any input!
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