My twin Walbro's/01 T/A, Pics and schizz
01-11-2007, 01:05 PM
#21
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Originally Posted by mturco
The problem with your design is you are going from two -6 to 1 -6 tube. This is going to be very restrictive. The way we did it was two -8 barbed reducers to -6 to a -8 Tee and -8 bulkhead out the top. But this required moving one of the sensors slightligh except it allows for all that new fuel to move better. Very similar design though. If i can get some pics i will post them up.
I'd be happy to answer whatever I can for you as well.
01-15-2007, 10:13 AM
#24
Originally Posted by Frost
Before this, my fuel pressure plummetted into the high 30s, now it's rock solid in the mid low 70s (boost referenced) and I can't take enough fuel out of the tune to save my life!! I'm gonna mess with the tune a bit more, but I may lower base pressure to 50 lbs or somewhere near that so it doesn't swing so high and just do a retune...
Like I said, that T isn't ideal, but I am at 13.5psi now and am still seriously overfueling the engine at WOT with NO dip in pressure.
Like I said, that T isn't ideal, but I am at 13.5psi now and am still seriously overfueling the engine at WOT with NO dip in pressure.
01-15-2007, 02:00 PM
#25
I'll look and see what I can turn up when I get home, but the fuel pressure monitoring was done by eye if that's the part you are interested in. My base pressure, as it turned out, happened to be 62psi back then. Add in the 15.5 psi (my street setting) and you get almost 78psi...
My base FP is something like 50#s now.
My base FP is something like 50#s now.
01-15-2007, 04:28 PM
#26
if its a problem and u have alot of fuel anyway just stop boost reffrencing it or have a bad connection so it will only go up like 5-9psi
also im installing my dual intank tonight, did u cut out the entire bottom of the bucket?? and did u put the pumps lower in the bucket so they will be closer to the bottom of the tank?
also im installing my dual intank tonight, did u cut out the entire bottom of the bucket?? and did u put the pumps lower in the bucket so they will be closer to the bottom of the tank?
01-15-2007, 05:28 PM
#28
Originally Posted by Frost
It's not a problem, I lowered my base pressure to 50#s and retuned. The pumps are as low as I could get them. The bottom has holes but is intact for "finding" the bottom of the tank.
01-24-2007, 06:34 PM
#30
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Originally Posted by yak
how low can you take the tank with that setup, no lower than 1/3 tank or what?
01-24-2007, 09:20 PM
#32
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Originally Posted by yak
i'm assuming the venturi is what some call the bucket?
02-02-2007, 01:21 AM
#35
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sounds like you got it dialed in but I was told when doing this type of setup you want to adjust the flow rate of the injectors rather then lower the pressure but whatever works right ??
~Guy
~Guy
02-03-2007, 07:35 AM
#36
I mean, you *could* probably do that, but it's fudging a set of real numbers.... My base pressure was something like 61-62 and was hitting very high 70s (78ish)....
I am still about to move to 2bar tuning whenever I can spare the time to get started, and I may bring the pressure back up; we'll see.
I am still about to move to 2bar tuning whenever I can spare the time to get started, and I may bring the pressure back up; we'll see.
02-05-2007, 04:38 PM
#37
out of curiosity, before you added the 2nd pump did you try runnign the single racetronix with a boostapump? Did that still have the pressure drop issues?
I'm wonderign, necause I'm at 445 rwhp thru a th400 and 6000 stall, and am planning on adding a 100 to 200 hit of nitrous... which should put it in to that 650 or so rwhp range, but thru a not so friendly driveline for dyno #'s... with a M6 it would probably be near 700 rwhp.
Am I asking for trouble adding a boostapump to the single racetronix and running off that, or should I be looking at a standalone for the nitrous to take the load off the main fuel system?
I'm wonderign, necause I'm at 445 rwhp thru a th400 and 6000 stall, and am planning on adding a 100 to 200 hit of nitrous... which should put it in to that 650 or so rwhp range, but thru a not so friendly driveline for dyno #'s... with a M6 it would probably be near 700 rwhp.
Am I asking for trouble adding a boostapump to the single racetronix and running off that, or should I be looking at a standalone for the nitrous to take the load off the main fuel system?
02-05-2007, 08:46 PM
#38
Originally Posted by Frost
If you are gonna do a 98 tank, do the 98 twin setup like MIGHTYMOUSE's, not this. I don't even see how a 99/up bucket is gonna work in a 98 tank.
http://rides.webshots.com/album/64988796cazkku
02-21-2007, 09:20 PM
#40
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just curious about the holes you put in the bucket. Do you have to do those if you just gonna replace the pump with a 255? Sorry I know off topic but figured you have an idea.