is the melling m295 and 10295 oil pump the same?
Teching In
Joined: Oct 2020
Posts: 23
Likes: 3
Sorry, about dredging up this old thread. I had used the search feature, and ended up starting off with an M295 based on the info that it was the same as a 10295, only to realize at the last minute it was a mistake.
I felt someone needed to post something to this thread to correct the early incorrect reply that said the two pumps were the same...it cost me two days and a return trip that could have been avoided, had the correct, informed responses (they are NOT the same) been on the old post in the first place.
I felt someone needed to post something to this thread to correct the early incorrect reply that said the two pumps were the same...it cost me two days and a return trip that could have been avoided, had the correct, informed responses (they are NOT the same) been on the old post in the first place.
TECH Senior Member
Joined: Jun 2016
Posts: 22,298
Likes: 3,619
From: Central Cal.
Sorry, about dredging up this old thread. I had used the search feature, and ended up starting off with an M295 based on the info that it was the same as a 10295, only to realize at the last minute it was a mistake.
I felt someone needed to post something to this thread to correct the early incorrect reply that said the two pumps were the same...it cost me two days and a return trip that could have been avoided, had the correct, informed responses (they are NOT the same) been on the old post in the first place.
I felt someone needed to post something to this thread to correct the early incorrect reply that said the two pumps were the same...it cost me two days and a return trip that could have been avoided, had the correct, informed responses (they are NOT the same) been on the old post in the first place.
LOL. Dude, it's all good! As was said, it's good info!
TECH Regular
Joined: Jul 2019
Posts: 421
Likes: 71
From: Tasmania Australia
I researched this to best of my knowledge the 10296 has heat treated internal gear the 10295 does not appear to after much searching I could not find anything to say it was and the 10296 is usually slightly more expensive.
Id be interested if anyone knows for certain.
I used the blue ring in my new engine with the 10296 and tuner said I had 90 psi.
Id be interested if anyone knows for certain.
I used the blue ring in my new engine with the 10296 and tuner said I had 90 psi.
Last edited by TimsLS1; Nov 5, 2020 at 07:30 PM.
Teching In
Joined: Oct 2020
Posts: 23
Likes: 3
I researched this to best of my knowledge the 10296 has heat treated internal gear the 10295 does not appear to after much searching I could not find anything to say it was and the 10296 is usually slightly more expensive.
Id be interested if anyone knows for certain.
I used the blue ring in my new engine with the 10296 and tuner said I had 90 psi.
Id be interested if anyone knows for certain.
I used the blue ring in my new engine with the 10296 and tuner said I had 90 psi.
TECH Regular
Joined: Jul 2019
Posts: 421
Likes: 71
From: Tasmania Australia
Yes I used the blue spring in my Hi volume oil pump for 90 psi in my newly rebuilt LS1 at about 6000 rpm. It was recorded while on the dyno. The red spring that came pre-installed in the pump would have given it even more PSI.
I wonder also if the additional pressure makes it more prone to leaking, I have an oil leak I need to fix.
I wonder also if the additional pressure makes it more prone to leaking, I have an oil leak I need to fix.
I don't see that a higher volume pump is automatically better just because it moves more volume. If the pump moves more oil faster than it can drain back to the pan you'll have an issue vs a standard volume pump.
TECH Regular
Joined: Jul 2019
Posts: 421
Likes: 71
From: Tasmania Australia
I've seen a debate that it isn't possible with a hi volume pump. The more oil pumped the more oil returned to sump. That is a different problem from what can occur in hard corner and low oil in sump. Unless the oil is going to do a gravity defying feat and a quart or so is going float around in the top of the engine somewhere it will return.
I have a small oil pan and a baffle to keep oil near the oil pickup when cornering, the baffle makes it harder for the oil to return to the sump with my hi volume pump, not enough to matter though, the cornering is the problem.
I guess I'm asking if it would take one, two or ten high volume oil to pumps to pump enough oil for it not to return to the sump quickly enough, I'm guessing ten of them wouldn't be enough.
I have a small oil pan and a baffle to keep oil near the oil pickup when cornering, the baffle makes it harder for the oil to return to the sump with my hi volume pump, not enough to matter though, the cornering is the problem.
I guess I'm asking if it would take one, two or ten high volume oil to pumps to pump enough oil for it not to return to the sump quickly enough, I'm guessing ten of them wouldn't be enough.
Last edited by TimsLS1; Feb 14, 2021 at 12:09 AM.
