Which Melling Oil Pump to buy???
I contacted melling a few days ago and the guy who I talked to sounded like he was tipping back the bottle a little to much. He told me melling pumps will not work with double roller chains. There is also people saying they do work. Go figure.
TECH Regular
Joined: Dec 2003
Posts: 486
Likes: 0
From: Cherry Hill, New Jersey State
Melling adviced that the 10355 to be used for bearings clearance more than the OME which require higher pressure and volume to sustain the lubrication requirment to minimize the friction.
However, I could not asure if this pump 10355 will dry the sump in hard accelaration or sustained high RPM.
However, I could not asure if this pump 10355 will dry the sump in hard accelaration or sustained high RPM.
Last edited by LS6; Jan 29, 2012 at 01:46 PM.
I read a recent article discussing oil pressure and volume. (In Car Craft perhaps?) They use a general rule 10 PSI per 1000 RPM and referenced some top fullers running 0 psi at idle. Just my input. Thanks 
Staging Lane
Joined: May 2011
Posts: 85
Likes: 0
I called TSP to ask about bearings for my 408 rebuild and was told not to run the high volume pump. He said they dont use them at TSP because they have seen pans sucked dry in one 1/4 mile pass.
I exchanged the high volume high pressure pump with summit for the high pressure standard volume one.
He also told me it would not fit with a double roller chain. I went with a rollmaster single chain set which, according to the guy at TSP, is the chain set they use in builds.
I exchanged the high volume high pressure pump with summit for the high pressure standard volume one.
He also told me it would not fit with a double roller chain. I went with a rollmaster single chain set which, according to the guy at TSP, is the chain set they use in builds.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
TECH Regular
Joined: Dec 2003
Posts: 486
Likes: 0
From: Cherry Hill, New Jersey State
I just wounder that melling introduced the 10355 in the market targeting LS engine, but which engine bore is designed for or / and stroke and bearing clearence...
For my case, I have an LS engine with 4.0845" bore and stroke of 3.622", with normal OME bearing clreance, however, I will be using an oil cooler with the normal oil filter, which I consider a pressure drop of at least 10 psig. The engine will be used in track with operating RPM from 3000 to 4500 for at least 2hr. I thought of 10355 is a best choice, but when viewed the Melling pump, it was adviced not to use it. I want to ensure it will not subject the bearing to oil wash and will not make the my oil pan dry...
For my case, I have an LS engine with 4.0845" bore and stroke of 3.622", with normal OME bearing clreance, however, I will be using an oil cooler with the normal oil filter, which I consider a pressure drop of at least 10 psig. The engine will be used in track with operating RPM from 3000 to 4500 for at least 2hr. I thought of 10355 is a best choice, but when viewed the Melling pump, it was adviced not to use it. I want to ensure it will not subject the bearing to oil wash and will not make the my oil pan dry...
Last edited by LS6; Jan 29, 2012 at 03:30 PM.
However a guy above points out a pressure drop caused by an oil cooler so that would have to be taken into account in that type of setup.
TECH Regular
Joined: Dec 2003
Posts: 486
Likes: 0
From: Cherry Hill, New Jersey State
I found a thread on the Corvette Forum about the melling & GM pump which is intresting:
http://forums.corvetteforum.com/auto...pump-data.html
http://forums.corvetteforum.com/auto...pump-data.html
im running into the problem of to much slack in my timing chain i got a stock melling from advanced i was gonna use. iv seen were some timing chains comes with spacers do these go between the pump and block if so does anything have to happen to the pick up?
