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Old 03-09-2009, 10:31 PM   #76
Tony1
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Got it.

We've made a bit over 600whp on these on an S2000 on E85. That was with a Walbro 255 in tank and a Bosch 044 inline running 100psi base fuel pressure.
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Old 03-09-2009, 10:40 PM   #77
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Quote:
Originally Posted by Silverpike View Post
Now THAT'S what I like to hear.

How much static rail pressure are you running?
OE pressure - I think around 43.5psi static... I honestly think I could lean it out more, but it starts to get sluggish trying to drive after 16-1 (interstate driving would be fine) but if I lean it out THAT much for mid/low load it becomes more of a pain to drive...

-Jerod
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Old 03-10-2009, 12:00 AM   #78
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Quote:
Originally Posted by xilles View Post
hmm i got modded 06 wrx cleaned flow tested by deatschwerks at 1050cc...
What are the full test results for the modded stockers?
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Old 03-10-2009, 12:39 AM   #79
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2.3% variant difference
97.7 % Balanced
total system 4244cc/min 404.2lbs/hr
min flow 1050cc/min 100.00lbs/hr
max flow 1074cc/min 102.3lbs/hr
avg flow 1061cc/min 101.0lbs/hr




Last edited by xilles; 03-10-2009 at 12:44 AM.
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Old 03-10-2009, 01:03 AM   #80
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Originally Posted by xilles View Post
2.3% variant difference
97.7 % Balanced
total system 4244cc/min 404.2lbs/hr
min flow 1050cc/min 100.00lbs/hr
max flow 1074cc/min 102.3lbs/hr
avg flow 1061cc/min 101.0lbs/hr




Not to be an ass-hat but did they come with dead times? I had more than just a little problems with idle and modded stockers (mine were <1% balance)

Nothing I did fixed it.. Hopefully you don't have the same problems...


-Jerod
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Old 03-10-2009, 01:08 AM   #81
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i dont know what your talking about dead times. i dont know much about injectors, these were just cleaned and flow tested with there basic deal..
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Old 03-10-2009, 02:48 PM   #82
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I wonder what fuel pressure they were using...seams higher than stock to me to have those kind of flow rates. Usually they are between 800 - 850 cc/m at stock fuel pressure.
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Old 03-10-2009, 02:58 PM   #83
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these injectors stock were the 565cc 06 wrx ones the 440cc stock injectors mod out to 880 in and or around i here.
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Old 03-10-2009, 04:42 PM   #84
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Originally Posted by wittmer25 View Post
I wonder what fuel pressure they were using...seams higher than stock to me to have those kind of flow rates. Usually they are between 800 - 850 cc/m at stock fuel pressure.
the 06-07's flow higher. I have a set of modded 07's in my car that flow tested 960.
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Old 03-11-2009, 12:55 AM   #85
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Just found this thread. I want a set of these injectors! Like many of you, I want to run E85. Who is selling them? And... should I run the Bosch 044 inline with the stock pump, or what? I'm running a VF52 and am shooting for 350 whp on pump gas and however much more I can get on E85.

Rob
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Old 03-11-2009, 01:09 AM   #86
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Originally Posted by Snarfblat View Post
Just found this thread. I want a set of these injectors! Like many of you, I want to run E85. Who is selling them? And... should I run the Bosch 044 inline with the stock pump, or what? I'm running a VF52 and am shooting for 350 whp on pump gas and however much more I can get on E85.

Rob
Contact Tony at T1raceparts.com. I just went by there last weekend, and he had a bucketful.
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Old 03-11-2009, 10:20 AM   #87
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These injectors with a walbro 255 are good for 600hp or so on gas, 450 or so on E85. The pump being the limiting factor. We've done 700whp on 1 set of these and dual walbro pumps. If you do an inline bosch 044 then you can crank the pressure way up, running 100psi base fuel pressure, and make over 600whp on E85 and over 750whp on gas.
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Old 03-11-2009, 10:38 AM   #88
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Tony,

Would you recommend running 100psi of base pressure with a bosch 044 for a car that is DD? Running 100psi won't this lead to premature pump failure over time?
I'm very interetsed in injectors but a little leary of running very high fuel pressures when I commute 200 miles each day!!
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Old 03-11-2009, 11:46 AM   #89
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The bosch pumps are more than capable, as are the injectors. No problems at all.

Doing something like that on a pump or injectors not designed for it would be a bad idea, but we've seen no issues at all with the 044's at that pressure and the injectors are rated by Bosch at 7 bar. That's not a 7 bar race only deal, that's a 7 bar 200k mile deal.

If you don't NEED that much fuel flow, you don't have to run that much pressure, I was just letting you guys know about the capabilities.
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Old 03-11-2009, 11:52 AM   #90
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OK, is the pump rated at 7 bar?
I plan to run my STI on E85 this year and will need every ounce the injector and fuel pump is capable. I currently run the precision 1000cc low impedance injectors driven by the Hydra Nemesis ECU, 28lbs of boost making 479whp, 440tq all day long on 93oct plus water injection and put over 40,000 miles a year on my car
I have an 044 in tank and at 50psi base fuel pressure running 83% duty cycle on pump gas.... I'm just looking into the longevity of a high fuel pressure setup..
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Old 03-11-2009, 12:05 PM   #91
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Quote:
Originally Posted by sean18337 View Post
OK, is the pump rated at 7 bar?
I plan to run my STI on E85 this year and will need every ounce the injector and fuel pump is capable. I currently run the precision 1000cc low impedance injectors driven by the Hydra Nemesis ECU, 28lbs of boost making 479whp, 440tq all day long on 93oct plus water injection and put over 40,000 miles a year on my car
I have an 044 in tank and at 50psi base fuel pressure running 83% duty cycle on pump gas.... I'm just looking into the longevity of a high fuel pressure setup..
How did you set up the 044 in pump?
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Old 03-11-2009, 12:43 PM   #92
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Ran a power wire from the battery to a relay and from the relay to the +pump. Use the hydra to ground the relay to turn the pump on
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Old 03-11-2009, 01:00 PM   #93
Tony1
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It's 'rated' at 72.5psi, but that's just where the flow rating is. Just like a walbro is rated at 3 bar. Doesn't mean it's the most it can do. We have tested the 044 all the way up to 150psi and it still flows really well up there as well as not flying apart. lol

Seriously, 100psi is not pushing them hard.

Another thing to consider, the walbro feeding the Bosch makes it even more efficient since there will be at least a little pressure at the inlet of the pump.
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Old 03-11-2009, 03:19 PM   #94
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another thing is there is a big difference in flow and pressure in regards to a 255 in tank and a 255 in-line...I know AMS did a pressure vs flow on them. Can't recall where I saw it.
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Old 03-11-2009, 08:25 PM   #95
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AMS fuel pump test....

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Old 03-11-2009, 08:46 PM   #96
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Quote:
Originally Posted by Tony1
are aftermarket fuel rails required to run these injectors?
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Old 03-11-2009, 09:19 PM   #97
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No, they fit with stock top feed rails just the same, just don't look nearly as good for the pic. lol
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Old 03-11-2009, 09:28 PM   #98
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Just to be clear, these are rated 1000cc at 43.5PSI? Or did you reach 1000cc at a different test pressure?
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Old 03-11-2009, 09:56 PM   #99
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Old 03-11-2009, 09:58 PM   #100
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