Melling 10296 idles 50psi @ 205*F, increases psi with rpm.. how much is too much?
05-02-2013, 01:15 PM
#21
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Pressure you see is directly related to the bearing clearance. A high flow pump simply moves more oil and depends on the bearing clearance for the pressure you see on your gauge. The "high pressure" pumps are related to the bypass spring. The 10295 is no where near as thick as the 10296, because the gerotor in the 10296 is like 23% larger and thus moves a lot more oil.
The only way to add pressure is to increase oil volume for a given clearance or change the clearances.
The only way to add pressure is to increase oil volume for a given clearance or change the clearances.
From Melling
10296
•High volume performance upgrade for M295.
•18% increase in volume over M295 and 10295 oil pump.
•The cast aluminum housing is CNC machined and hardcoat anodized.
•The cast iron cover is CNC machined and phosphate coated.
•The relief valve features a screw in valve plug with the optional lower stock spring supplied.
•Uses stock 1-1/4” bolt on screen.
•High volume performance upgrade for M295.
•18% increase in volume over M295 and 10295 oil pump.
•The cast aluminum housing is CNC machined and hardcoat anodized.
•The cast iron cover is CNC machined and phosphate coated.
•The relief valve features a screw in valve plug with the optional lower stock spring supplied.
•Uses stock 1-1/4” bolt on screen.
05-05-2013, 07:32 AM
#28
http://www.dragzine.com/news/darts-l...-system-tests/
Dart claims 18 GPM
This is what I was told buy Tim at the Car Shop Inc in the testing that they did
The pump I have on my car is about 17.5 to 19 gpm
Here is a data log of what mine looks like on a pass with 6.5 quarts and it has a huge filter with a remote lines.
05-05-2013, 08:06 AM
#29
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An iron GM block will use about 3.5gpm at 230F 6000rpm. The aluminum blocks will use about 6gpm at the same 230f 6000rpm. With a solid roller and slightly lower temps it would not surprise me if the Dart could get down around 2gpm as it is priority main oiling.
Kurt
Kurt
05-05-2013, 08:23 AM
#30
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http://www.dragzine.com/news/darts-l...-system-tests/
Dart claims 18 GPM
This is what I was told buy Tim at the Car Shop Inc in the testing that they did
The pump I have on my car is about 17.5 to 19 gpm
Here is a data log of what mine looks like on a pass with 6.5 quarts and it has a huge filter with a remote lines.
The 10296 still shows to be a good upgrade, but that DOD pump is really moving some oil. Wonder why Melling is saying not to use it as a performance oil pump?
