LS3 Oil Cooling Circuit With Two Radiators.
On The Tree
Joined: Mar 2012
Posts: 131
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It would be less restrictive to set up your coolers as a parallel flow circuit instead of series flow. I would also change the forged hose ends for some tube ends to decrease pressure loss. Testing years ago at my buddies shop on a USAC midget motor showed 3-5PSI loss for each forged 90 that was placed in an oil system, tube ends aren't as restrictive but, if your desert racing, buy quality hose ends as the cheap **** crap will crack under stressful use (Aeroquip, XRP are good.) You can also check on steel hose ends at a Parker hydraulics store, might better suit your needs, if I were running open desert, I wouldn't want those parts failing on me! JIC hydraulic hose end are 37 degree like AN but because they are industrial, they are cheaper and more common.
Also take a look at your oil passage into the cylinder block and where it does the 90 degree turn by the front timing cover, port and smooth this transition, then consider taking the oil pressure "out" port off of the steel plug at the front drivers side of the motor rather than making it do all those extra 90 degree turns to make it back to the rear of the block, this will give you a far better oil system than what you have now, also might simplify the plumbing to the remote filter. You can put a tweed plug or freeze plug into the front oil passage at the rear of the block.
Also take a look at your oil passage into the cylinder block and where it does the 90 degree turn by the front timing cover, port and smooth this transition, then consider taking the oil pressure "out" port off of the steel plug at the front drivers side of the motor rather than making it do all those extra 90 degree turns to make it back to the rear of the block, this will give you a far better oil system than what you have now, also might simplify the plumbing to the remote filter. You can put a tweed plug or freeze plug into the front oil passage at the rear of the block.
Last edited by 427 zeo6; Jun 19, 2015 at 05:56 AM.
