Oil Pressure (High?) with Cooler/Accusump/T-stat/LS6 Ported Oil Pump
01-28-2006, 08:12 PM
#1
"AlohaC5" Senior Member
Thread Starter
Oil Pressure (High?) with Cooler/Accusump/T-stat/LS6 Ported Oil Pump
I have a new 383 stroker using a LS6 ported oil pump connected to a 3-quart Accusump, LPE oil cooler and Canton Racing oil thermostat. The oil pressure rises to 65 when I first start the engine and it takes several minutes for the oil pressure to settle down at 46 (good) while cruising and idle at 36-38 (good).
Is this high pressure due to having the oil travel through the many components and fittings in this setup? NOTE: I'm running regular 5W30 oil and switching to synthetic next week (after break in). Are there any problems in having the oil pressure run high at 65 till the oil warms up, etc?
Is anyone else running this type of oil cooling and accusump setup? What is your oil pressure at start up and during the first 15 minutes? Everything appears to be working fine and once the engine is warm and has been running for a few minutes the oil pressure remains in the optimal range.
Is this high pressure due to having the oil travel through the many components and fittings in this setup? NOTE: I'm running regular 5W30 oil and switching to synthetic next week (after break in). Are there any problems in having the oil pressure run high at 65 till the oil warms up, etc?
Is anyone else running this type of oil cooling and accusump setup? What is your oil pressure at start up and during the first 15 minutes? Everything appears to be working fine and once the engine is warm and has been running for a few minutes the oil pressure remains in the optimal range.
Last edited by Gray Ghost GS; 01-28-2006 at 08:15 PM.
01-29-2006, 02:41 AM
#2
Drifting
Member Since: Oct 2004
Location: Southwest Virginia
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That is not caused by "having the oil travel through the many components and fittings in this setup". On the LSx engines the oil pressure is sensed at the top of the block behind the intake. At this point the oil has already gone from the oil pump through all those components and fittings, meaning since your gauge reading is after those components and fittings any restriction in those components would show up as a loss in pressure not an increase.
I have about the same setup on a 346 except I have an internal EOC and no thermostat. When cold, if I bring the RPM up around 3000 it the oil pressure will be around 60PSI, but will fall back once the engine is warm. I don't think 65PSI is going to cause you any problem, sounds pretty normal for a cold engine.
I have about the same setup on a 346 except I have an internal EOC and no thermostat. When cold, if I bring the RPM up around 3000 it the oil pressure will be around 60PSI, but will fall back once the engine is warm. I don't think 65PSI is going to cause you any problem, sounds pretty normal for a cold engine.
01-29-2006, 02:42 PM
#3
"AlohaC5" Senior Member
Thread Starter
I'm having the oil changed back to synthetic this Friday and will use the stock AC Delco PF46 filter - changing from the Baldwin B31 oil filter I've been using, which apparently has caused higher oil pressure readings. I will also have all the oil lines inspected for any pinching. Hopefully, the change back to synthetic and using a different filter will resolve the higher start-up oil pressure I'm experiencing. Another option is to switch from M1 5W30 to M1 0W40.
