Devils fork

GetLow · 12-04-2005, 12:49 PM

Anybody ever heard of or used this method for your dumps? there is a diagram halfway down the page here its hand drawn http://www.eternalrollerz.com/TechAr...ksandSlows.htm
I guess the idea is to remove the restriction of the dumps by putting the dumps on the return line instead. any ideas on this?

rlowride · 12-04-2005, 08:53 PM

that page is kinda sloppy...

but whenever i have 4 pumps... i bypass the dumps.. pressure straight to the cylinders..

GetLow · 12-05-2005, 01:17 AM

So do you think it helps? will it work for a 2 pump fbss set up?

spence · 12-05-2005, 02:33 PM

that set up looks like a christmas tree, why are you running 1/2 checks with
3/8 fittings.eliminate as many elbows as possible because the fluid has to come to stop a then shoot 90 degrees theres your restriction also change all
the 3/8 to 1/2 fitting thats another source of restriction . one thing you may
want to do is drill 2- 1/2 npt ports off your aluminum block and scratch parts#1 , 3, 2,

GetLow · 12-07-2005, 08:30 PM

I don't think it helps to use 1/2 inch fittings with #6 hoses does it? I thought they used the 1/2 inch checks because a check valve has a lot of restriction, maybe more than anything else. so upgradeing to 1/2 inch helps?

spence · 12-08-2005, 03:13 PM

check valves are rated by flow,you can shove 15 gpm (Gallons Per Minute)
though a 1/2 check valve and 8 gpm though a 3/8 check. you just need to
know how much flow your pump is putting out . how do you find that info ?
hydraulic lesson -101 a standard 12 volt motor @ 12 volts does about 1800
RPM (Rotation Per Minute) approx. a no. 8 fenner gear at the same rpm will
produce about 3 gpm you would have to spin that motor at 7839 rpm to get
15 gpm. thats about 4 1/2 times faster than what a standard motor can do
before burning up i guess you'd need 60 to 72 volts to spin it that fast. so
to your question check valves can resrict , so can fittings or valves . size
you system accordingly there is a reason they put certain size ports on valves
its because they think you are going to put the right amount of fluid though it
I hope this was'nt more info than you needed ,sorry if it was ?

12-04-2005, 12:49 PM	#1 (permalink)
GetLow Registered User Join Date: Dec 2005 Posts: 9	Devils fork Anybody ever heard of or used this method for your dumps? there is a diagram halfway down the page here its hand drawn http://www.eternalrollerz.com/TechAr...ksandSlows.htm I guess the idea is to remove the restriction of the dumps by putting the dumps on the return line instead. any ideas on this?

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12-04-2005, 08:53 PM	#2 (permalink)
rlowride UnitedRidaz C.C. Join Date: Jun 2002 Location: Giant sink hole in FLA. Posts: 2,990	that page is kinda sloppy... but whenever i have 4 pumps... i bypass the dumps.. pressure straight to the cylinders..

12-05-2005, 01:17 AM	#3 (permalink)
GetLow Registered User Join Date: Dec 2005 Posts: 9	So do you think it helps? will it work for a 2 pump fbss set up?

12-05-2005, 02:33 PM	#4 (permalink)
spence Registered User Join Date: Nov 2005 Location: whittier ca. Posts: 28	that set up looks like a christmas tree, why are you running 1/2 checks with 3/8 fittings.eliminate as many elbows as possible because the fluid has to come to stop a then shoot 90 degrees theres your restriction also change all the 3/8 to 1/2 fitting thats another source of restriction . one thing you may want to do is drill 2- 1/2 npt ports off your aluminum block and scratch parts#1 , 3, 2,

12-07-2005, 08:30 PM	#5 (permalink)
GetLow Registered User Join Date: Dec 2005 Posts: 9	I don't think it helps to use 1/2 inch fittings with #6 hoses does it? I thought they used the 1/2 inch checks because a check valve has a lot of restriction, maybe more than anything else. so upgradeing to 1/2 inch helps?

12-08-2005, 03:13 PM	#6 (permalink)
spence Registered User Join Date: Nov 2005 Location: whittier ca. Posts: 28	check valves are rated by flow,you can shove 15 gpm (Gallons Per Minute) though a 1/2 check valve and 8 gpm though a 3/8 check. you just need to know how much flow your pump is putting out . how do you find that info ? hydraulic lesson -101 a standard 12 volt motor @ 12 volts does about 1800 RPM (Rotation Per Minute) approx. a no. 8 fenner gear at the same rpm will produce about 3 gpm you would have to spin that motor at 7839 rpm to get 15 gpm. thats about 4 1/2 times faster than what a standard motor can do before burning up i guess you'd need 60 to 72 volts to spin it that fast. so to your question check valves can resrict , so can fittings or valves . size you system accordingly there is a reason they put certain size ports on valves its because they think you are going to put the right amount of fluid though it I hope this was'nt more info than you needed ,sorry if it was ?