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Old 03-07-2013, 12:30 AM   #7176
Maxwell Power
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Quote:
Originally Posted by Z0rr0 View Post
I never put it back on the dyno, but it wouldn't surprise me if it picked up that much.. it certainly felt much more powerful up top with the extra timing.

I have since converted the car back to pump gas and wastegate pressure.

The wifey is driving it now so it didn't really need all that power.

The five o 1400 top feeds sucked. They were okay, but not great on e85, but wouldn't idle or maintain decent afr corrections on pump gas at all.
Yeah, those injectors are like that...
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Old 03-07-2013, 01:04 AM   #7177
Junior2JZ
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Originally Posted by 06rexwagon View Post



Idle timing is strange

Important to note that this is a hybrid engine with oem gasket and Cnc head chambers. Not sure of cr.
Just add a few more degrees

GIFSoup
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Old 03-07-2013, 08:20 AM   #7178
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Hahahahaha ^ yeah exactly what she needs lol
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Old 03-10-2013, 09:45 PM   #7179
wrxsubiemod
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Originally Posted by Junior2JZ View Post

Just add a few more degrees

GIFSoup
Hit 5000 post junior!.

On a side note, is it possible to target 15.5 16 AFR in closed loop with a stock ecu? E85 of course. I'm sure this has been discussed before. Really just curious, I don't mind $tree fiddy per gallon of E here in Cali.
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Old 03-10-2013, 09:55 PM   #7180
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Quote:
Originally Posted by wrxsubiemod View Post
Hit 5000 post junior!.

On a side note, is it possible to target 15.5 16 AFR in closed loop with a stock ecu? E85 of course. I'm sure this has been discussed before. Really just curious, I don't mind $tree fiddy per gallon of E here in Cali.
No, you can't target higher than 14.7 but you can adjust the o2 sensor scaling table to trick the ECU into running leaner in CL fueling mode.
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Old 03-10-2013, 10:40 PM   #7181
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Originally Posted by stretchedk7 View Post
hmmmm, so you dont like the idea of fuel feed line y'ing into two feed lines feeding the rails from the front. 2 returns y'ing into fpr's return?? mps
Bump for this question... I'm curious too

I have my feed y in back then return in the front to fpr
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Old 03-12-2013, 06:20 PM   #7182
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Bump for this question... I'm curious too

I have my feed y in back then return in the front to fpr
I do not, ever.
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Old 03-12-2013, 06:35 PM   #7183
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I do not, ever.
Why not?
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Old 03-12-2013, 07:24 PM   #7184
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yes id like to know as well. i thought that was optimal?? enlighten
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Old 03-12-2013, 07:27 PM   #7185
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Why not?
I answer this question weekly on various boards, forums, phone calls, etc. There are threads dedicated to this question.

Not trying to sound like a dick, but I get tired of typing this crap in here so often.

http://forums.nasioc.com/forums/show....php?t=2324217
http://forums.nasioc.com/forums/show....php?t=1784516
http://forums.nasioc.com/forums/show....php?t=1702099
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Old 03-12-2013, 07:46 PM   #7186
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fair enough on all the threads....^ wont the second rail have a slight different (less pressure) from the first rail pulsing fuel (injectors i mean). seems like if u fed 2/4 rail first that 1/3 would have slight delay in pressure upon pressure changes?
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Old 03-13-2013, 09:55 AM   #7187
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Dom, I read all your comments in all 3 links, thank you. Does it matter in your opinion the plumbing order relative to firing order?
1-3-2-4; Easy to feed them in reverse order, or, just as easy to feed them out of order: 2-4-1-3 to keep opposite-rail pulses a little further from eachother via the bridging hose.
I'm most likely going to switch over to Aeromotive topfeed rails, just want to be sure I do this all correctly. TIA.
Believe it or not, most of what I understand about fueling comes from you and Tony, not from this naive notion of consensus that is so popular everywhere.

Last edited by climberd; 03-13-2013 at 10:03 AM.
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Old 03-13-2013, 11:00 AM   #7188
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Originally posted by slowgenius

"This is a fuel question for dom. When running a series fuel rail setup is it fed in a "U" formation across the alternator head to head or a "Z" formation under the intake manifold?"

Quote:
Originally Posted by Maxwell Power View Post
Z, back to front.

Quote:
Originally Posted by climberd View Post
Dom, I read all your comments in all 3 links, thank you. Does it matter in your opinion the plumbing order relative to firing order?
1-3-2-4; Easy to feed them in reverse order, or, just as easy to feed them out of order: 2-4-1-3 to keep opposite-rail pulses a little further from eachother via the bridging hose.
I'm most likely going to switch over to Aeromotive topfeed rails, just want to be sure I do this all correctly. TIA.
Believe it or not, most of what I understand about fueling comes from you and Tony, not from this naive notion of consensus that is so popular everywhere.
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Old 03-13-2013, 01:05 PM   #7189
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the oem routing is also back to front btw.
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Old 03-14-2013, 02:18 PM   #7190
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So like stock, 4-2-3-1. Reverse firing order. I'm just going to assume some fuel system engineer at or contracted by Subaru fed the injectors in that order for a reason other than ease of layout and install.Thank you much Dom and others.
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Old 03-14-2013, 02:25 PM   #7191
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In my mind it makes sense. The injectors are firing closer and closer to the fuel source. I would guess that this help keep a consistent flow to the injectors, but I would have to see some sort of analysis to confirm.

Regardless, I've had zero issues with unexplained misfires with our setup in this way.
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Old 03-25-2013, 09:24 AM   #7192
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Here's a quick video of my NF Performance "Stage 1" setup.


On E85, of course. I'll have more info up shortly!
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Old 03-25-2013, 09:49 AM   #7193
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sounds pretty badass man!
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Old 03-25-2013, 12:20 PM   #7194
manitou
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Yeah Fuji just put that up on his DD thread!! I frickin love it!! It sounds so good the exhaust note and the 6266 spoolin!
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Old 03-25-2013, 12:33 PM   #7195
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love it!
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Old 03-25-2013, 02:29 PM   #7196
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That's sick. I need to go back and look at his thread!! Sounds sooo good
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Old 03-25-2013, 02:31 PM   #7197
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8k Redline?
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Old 03-25-2013, 04:27 PM   #7198
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27#s of boost...
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Old 03-25-2013, 04:31 PM   #7199
xluben
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Quote:
Originally Posted by 340Duster View Post
8k Redline?
Yeah, I probably don't need to rev it quite that high without cams though.

Quote:
Originally Posted by maxpowr View Post
27#s of boost...
Yeah, it's more like 29psi on a 4th gear pull. Here's more info:



Updates on my setup. Rotated PTE 6266

Full Details Here:

http://forums.nasioc.com/forums/show....php?t=2484865

Here's a quick speedo video:


Virtual Dyno Plot:



Turbo vs. VF52:



Rotated Turbo Setup:



And a couple more quick photos of the car:





Full Details Here:

http://forums.nasioc.com/forums/show....php?t=2484865
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Old 03-30-2013, 11:30 AM   #7200
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I need a little bit of insight here, and I thought you it's might be able to help me out. I'm working on a friends car, it is a built 2.0l with a 35r sized turbo, 1100cc injectors, base fuel pressure set at 55psi, hardwired aero 340 pump. Basically I'm maxing out the injectors at 17psi. What is holding me back?
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