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Old 03-15-2012, 11:00 AM   #1851
maxpowr
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valves lashed on the block and needs 7 buckets. i have to order them...install them, recheck and finish installing the accessories.
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Old 03-15-2012, 11:12 AM   #1852
kellygnsd
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Hey Jake, you should pressure test the fuel lines at 3x pressure you plan on running them(per Earl's). I wouldn't do that with the injectors installed though just plug the lines and pressurize. I used compressed nitrogen.
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Old 03-15-2012, 02:35 PM   #1853
Junior2JZ
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Been saying it forever.. use id1000s set up a COMPLETE fuel system and you won't have problems for what your planning on making power wise.

As for other injectors .. just look in my XT thread, full of fail. I am just about done tuning specific ones... as it always turns into a "tune" issue.. never the injectors fault.. lmao
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Old 03-15-2012, 03:21 PM   #1854
maxpowr
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sold my id1000s for dw1300s...
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Old 03-15-2012, 03:52 PM   #1855
maxpowr
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im really thinkin for this build, 93 pump will be easiest. e85 for the track.

seems like top dollar on new injectors is still a gamble that i dont want to risk my engine.

guys that dont accept responsibility for their own cars and blame the tuner are children.

im not sayin rookie tuners cant funk it up, but using a rookie tooner is kinda dumb in itself. i would have my map analyzed by another tuner and explained to me before i considered blaming the tune.

when i smashed a bearing, i initially thought i allowed my tuner to get too aggressive. after research and investigation i decided it was more likely a combination of aggressive tune...THAT I ALLOWED...12mm pump lost pressure at high rpm...over rev due to slipping clutch...wrong oil weight...i could go on.

at the end of the day i am responsible for my own toy and cant blame anyone for something i allowed.
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Old 03-15-2012, 04:03 PM   #1856
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Quote:
Originally Posted by maxpowr View Post
sold my id1000s for dw1300s...
.. i sell you my FiveO 1200cc they are amazing even on pump no issues at all. You should be able to maxout your setup.
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Old 03-15-2012, 04:08 PM   #1857
maxpowr
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hmmm...trade you for dw1300's ...

lets see what mine do...

gonna break in on 93.

i wanna try out e85 with the walbro 400 turned down first...
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Old 03-22-2012, 10:15 PM   #1858
maxpowr
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i need two more buckets to finish up. i also ordered my oem oil cooler...

gotta get the fuel lines and fittings next....

http://www.siliconeintakes.com/index...5cdd16ca6c0c20
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Old 04-06-2012, 01:04 AM   #1859
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made some progress today...
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Old 04-06-2012, 12:17 PM   #1860
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Right on man. Are you mounting the FPR on the pitch stop?
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Old 04-06-2012, 10:30 PM   #1861
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yup...need an 8an x 6an x 6an y block for the feed and the aero 5/16 x 8an and 5/16 x 6an quick connect for feed and return on to stock lines...for now. just wanna get it running!!!

im not even gonna hook up the walbro400 until i move the battery to the back. dont need much to get it running and for break in.

i failed to realize that the 257 gasket kit would not have all the 2.0 cam seals and valve cover gaskets that i need for my v5 heads. duh. used cometic .040 on the heads. also need a new cam bolt, new cam gear bolts, and the bolts that go into the access panels in the trans area. also wanna take apart the oem harness and remove what i dont need and clean it up a bit for stealth.

sent dw1300s back to dw for inspection and thumbs up. they are already on their way back, so looks like i'm gonna try them.

karl hooked up the agency power rails and coated valve covers...(*cough* arp head studs)
not to mention many hours of my drunken sillyness. oh and to the knaupp family, big up for letting me store HAKT there since august. i really appreciate it.

so...its getting there.

junior tuned?
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Old 04-08-2012, 04:44 PM   #1862
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sorry i was falling asleep in the turbo chair that nite. i was beat. plus busted knees didnt want to be standing too much. hopefully we get this beast started and out of the garage soon.. lets just not rush things...
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Old 04-08-2012, 06:09 PM   #1863
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No worries. We are making good progress. I think we are doing it right. Failure will suck ballz. The rest of the parts will be in tomorrow. Then we start a new list of sheet I don't have.

Anybody have a link to step by step direct wire a fuel pump? I understand what has to be done but...
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Old 04-09-2012, 02:46 PM   #1864
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It's as easy as it seems. Run a power wire straight from the battery (with a fuse on it near the battery) to a relay, relay to pump (+), and ground the pump and relay to the chassis. Control the relay with a switch or a vehicle "on" powered wire.

I recommend picking up a kit of some sort. They make life easy. I know JayRacing sells one for $30. Jegs/Summit also sell various ones.
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Old 04-09-2012, 05:01 PM   #1865
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thanks craig. gonna get it started first...then more pump. i wanna move the battery before i change the pump.
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Old 04-10-2012, 11:30 PM   #1866
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dw1300s, hard wired walbro 400, agency power rails, aeromotive fpr...
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Old 04-10-2012, 11:38 PM   #1867
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so the bottom picture...fuel pressure correction?

is it 5.10 bar is 75 psi? which really is 5.10 x 14.5 = 73.95psi? this represents what? is it fuel pressure and boost? just boost? im confused.

what is BSFC based injector limits? i assume IDC is injector duty cycle, but what are the other values?
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Old 04-11-2012, 03:46 PM   #1868
wrxsubiemod
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Fuel pressure correction is just a conversion chart.

You are correct on your math but the values are based on your static fuel pressure. At 3.6 bar these flow 1400cc


Your above readings were tested at 2.999 bar 43.5psi =1380's

BSFC explained here

http://www.importperformanceparts.ne...nj-choose.html

Last edited by wrxsubiemod; 04-11-2012 at 03:59 PM.
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Old 04-11-2012, 04:04 PM   #1869
maxpowr
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So...2.999 bar or 43.86#s of boost and base fuel pressure of 43.5 , the injectors will flow 1380?

Don't seem right.

What do they do at 24#s of boost @ 50#s of fuel pressure with walbro 400 running direct of the battery?

How about 30#s of boost @ 60#s of fuel pressure.
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Old 04-11-2012, 04:13 PM   #1870
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Boost doesn't come into play just yet.

The readings of bar are converted into psi for you above.

Base fuel pressure of 2.999bar or 43.5psi= ~1380cc

If you choose to run a higher base fuel pressure the math is worked out for you in the sheet.

The amount of Lb/hour or psi the fuel pump will flow is based on base fuel pressure + amount of boost

Edit: the pressure in the rails is suppose to rise with boost to overcome manifold pressure. So the base pressure theoretically should not change

Last edited by wrxsubiemod; 04-11-2012 at 04:19 PM.
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Old 04-11-2012, 04:46 PM   #1871
maxpowr
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I must admit, I don't see the light yet, but thank you for contributing. I'm a lil burnt.
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Old 04-11-2012, 04:58 PM   #1872
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Yeah i admit that I suck at explanations.

Base oem pressure is 43.5 psi. That is what your injectors were tested at. So they flowed your injectors at that pressure and they ran around 1380cc.

You can up the base pressure and that will also change the max cc your injectors will flow as seen on your chart.

So let's work this out... 43.5psi fuel pressure with 20 psi boost= 63.5psi the rails and fuel pump will see. 20psi is added to the fuel pressure to off set the boost in the intake manifold.
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Old 04-11-2012, 06:19 PM   #1873
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The chart should be labeled fuel injector delta pressure. Whatever you set you base fuel pressure to is your injector delta as long as you have a 1:1 rising rate FPR.

43.5 psi base fuel pressure + 20 psi of boost = 63.5 psi of fuel pressure and 20 psi of manifold pressure. The fuel pressure delta across the injectors is still 43.5 psi and that's all that matters when it comes to the flow rates. Its all about the DP.
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Old 04-11-2012, 09:12 PM   #1874
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so at 50#s base fuel pressure your looking at around 1480
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Old 04-11-2012, 11:13 PM   #1875
maxpowr
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Sounds sufficient.

Sounds a lot better than 850.

Last edited by maxpowr; 04-11-2012 at 11:19 PM.
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