Which Melling Oil Pump to buy???
#25
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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; 01-29-2012 at 01:46 PM.
#26
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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
#27
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.
#30
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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; 01-29-2012 at 03:30 PM.
#32
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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
#33
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?