What about this y block for dual feed?

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mondtster said:
The same brass fittings that you question at fuel pressures of ~40psi see WAY more pressure in other applications with no issues.

Is it wise to use the brass fittings in a high pressure hydraulic application? No, but you shouldn't be using the cheesy aluminum AN race car fittings in those applications either. If you're that concerned about trusting your fittings then I would suggest going with steel fittings meant for hydraulic systems that have to withstand thousands of psi.

Just my opinion.
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Thats where i get all my fittings, at a hydraulic place. They have everything possible, fitting and hose wise.
 
here is what I did on my old truck and worked great....pretty expensive but had more than enough flow and was a nice tight package. The aeromotive Y-blocks are dual -8an going in and -10an comming out. and the 3 way dump valve was a -10 in and out with a -8 for the return back tot he fuel cell.

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RYanB
 
got the dual feed done last night, i wasnt able to get a y block, so i used a basic t fitting, the straight part of the "T" is feeding the stock location so the flow should be about the same, and the branch of the "T" is going to the front of the pump, i got the adaptor for the pump, M18x1.5 to a -8 jic, i was able to get both fittings in place without grinding on the gear housing, i did have to remove the small plate attached to the gear housing(not the engine data plate, but the one just above it), and i was worrieed about the oring that the fitting came with sealing up, but it never leaked once i got everything back together. im going to be upgrading to a 1/2" line, and use the current 3/8" line as the return here in the near future, as for now im happy, i didnt really ge to drive it last night, but i will today, and see if it made a difference, and take a few pics.

wes
 
wdimig said:
got the dual feed done last night, i wasnt able to get a y block, so i used a basic t fitting, the straight part of the "T" is feeding the stock location so the flow should be about the same, and the branch of the "T" is going to the front of the pump, i got the adaptor for the pump, M18x1.5 to a -8 jic, i was able to get both fittings in place without grinding on the gear housing, i did have to remove the small plate attached to the gear housing(not the engine data plate, but the one just above it), and i was worrieed about the oring that the fitting came with sealing up, but it never leaked once i got everything back together. im going to be upgrading to a 1/2" line, and use the current 3/8" line as the return here in the near future, as for now im happy, i didnt really ge to drive it last night, but i will today, and see if it made a difference, and take a few pics.

wes
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Very interested in any results you end up with Wes! Let us know.
 
whats the need for this? im running a single 1/2" feed line to the stock location at 40psi and I have not had an issue with running it out of fuel. IMO if its not broke, don't fix it.
 
getblown5.9 said:
whats the need for this? im running a single 1/2" feed line to the stock location at 40psi and I have not had an issue with running it out of fuel. IMO if its not broke, don't fix it.
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The idea is to provide cool fuel to the rear and front of the pump helping to avoid hot less dense fuel going to the front plungers vs. cool denser fuel going to the rear plungers. This is Weston's suggestion, usually he's pretty spot on in my experiences:p
 
I was waiting on the last fitting in the mail and didnt get to try it for this last weekends race. It will get intalled prob. tonight and tested this week, dont really look for any added power but Im down for any added volume and reliabilty. Ryan
 
stock600 said:
I was waiting on the last fitting in the mail and didnt get to try it for this last weekends race. It will get intalled prob. tonight and tested this week, dont really look for any added power but Im down for any added volume and reliabilty. Ryan
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Cool Ryan, let us know how it works out. It will be a bit before I will be able to try running something in my truck.
 
DonTanklage said:
if you put fuel in one its just gonna flow right out the other

jmo

don
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Smokem said:
Maybe, just maybe, your right.

Wait, no, that's just rediculous.

Like I mentioned last time, I don't believe you fully understand how the fill port spill port functions.
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pump20ports.jpg


what does my understanding of the workings of the pump have to do with the two bores meeting in the exact same spot?

come on westley....i am not a genius like you...my iq is barely over 120...but when i inquired about doing a dual feed someone posted this picture and it did not take my sub-genius brain half a second to figure out that the front port is not the place to put a second feed

instead of saying, "i am smart, you are stupid - you dont understand how the pump works", why dont you explain why i am wrong?

i am all ears

thanks, don
 
DTanklage said:
pump20ports.jpg


what does my understanding of the workings of the pump have to do with the two bores meeting in the exact same spot?

come on westley....i am not a genius like you...my iq is barely over 120...but when i inquired about doing a dual feed someone posted this picture and it did not take my sub-genius brain half a second to figure out that the front port is not the place to put a second feed

instead of saying, "i am smart, you are stupid - you dont understand how the pump works", why dont you explain why i am wrong?

i am all ears

thanks, don
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The spill ports are going to pass the fuel from cylinder 1 plunger to the others so far as my limited brain understands it, much like cylinder 6 plunger does to others. It's not like the fuel will come in to the number 1 plunger bore then role out the return port. $.02
 
i know it isn't the best way to feed it, untill i get a regulator, i cant feed it from the return port, hopefully that wont be too far down the road. it does seeem to run better with just that little mod. working on AFC tuning today.

wes
 
if i am way off on this you could have explained it in as much time as you have spent saying its lonely at the top - i am better than everyone else - i am right you are wrong

not trying to argue with you wes...

trying to learn

i try to keep a open mind

i would like to see a racepac and a couple of flow meters on one of the trucks plumbed as you suggest

cuz unless there is something i can not see 99% of the flow is gonna go to the front of the pump

you suggest putting second feed into the return and returning out of the front - i suggest it makes absolutely no difference which of the two you use and not to use either, but instead to put the second feed in thru the side, which is further away from the return port. the basis of my suggestion is explained above.

i have to believe i am not the first to realized this, can not believe no one else has spoken up...

don
 
yea, except the the front port and return meet a fraction of a inch from one another

i have idea - what do you think about this one: run the std -6 or -8 to the stock feed location and tee off as you suggest, but run a smaller line to the front of the pump. a -3 for example. just enough to give the front plunger some cooling without completely taking over flow

what do you think?
 
im going to put the feed in the front, since the return is smaller all the cool fuel coming in the front cant just flow out the return.

i just bought all my stuff from the hydraulic joint, push-loks, hose, tee, metric to JIC fitting, and a 90 and it was $55...

i cant imagine what these guys who use all braided lines and anodized aluminum fittings spend in plumbing their trucks.
 
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