Volume flow of oil pump
- Thread starter EGLITOM
- Start date
I don't have any data for you, but have used a earls EAR-41910ERL in the RCR-40, which keeps oil temp under control very well. Use -10AN, minimum hoses, good quality fittings.
On the cobra I used a smaller 3" high cooler, with -10 hoses which supported 500hp easily and when fitted gave me a -30degC drop in oil temp (was +130degC or more) racing. On the cobra I also used a oil thermostat, to keep to oil temp up on cooler days. No problems with that setup.
On the cobra I used a smaller 3" high cooler, with -10 hoses which supported 500hp easily and when fitted gave me a -30degC drop in oil temp (was +130degC or more) racing. On the cobra I also used a oil thermostat, to keep to oil temp up on cooler days. No problems with that setup.
Hi Tom,
I always run -12 lines, full flow Aeroquip fittings and the largest Mocal or Setrab oil cooler I can fit.
If I have a problem with the oil running too cool, I block off part of the oil cooler with cardboard using Zip-Ties to secure...
I know that's not much help for you - but it's what I do and it seems to work quite well..
I always run -12 lines, full flow Aeroquip fittings and the largest Mocal or Setrab oil cooler I can fit.
If I have a problem with the oil running too cool, I block off part of the oil cooler with cardboard using Zip-Ties to secure...
I know that's not much help for you - but it's what I do and it seems to work quite well..
Tom, there is another interesting thread on the forum about oil pump flows, and what the engine is happy with vs what the oil pump actually flows. Race engine builders reckon most engines are happy with only 5-10 GPM, at a pressure of only 50psi (or possibly even lower). Anything more than that (which is usually quite a bit) goes over the relief/bypass valve in the pump.
Later this summer (or early fall) I'll be on an engine dyno with a 4.0l Lexus V8 motor, and will have an external electric oil pump and some datalogging equipment setup to measure its flow, PSI, kW required, etc.
I may also take the opportunity to rig up the OEM oil pump on the electric motor and run it in isolation to see what it actually puts out vs various RPM's and back pressures. This is all data that, AFAIK, doesn't get published anywhere in service manuals or hotrodding books, but I think would be very interesting and useful to have. Ditto with cooling pumps.
Later this summer (or early fall) I'll be on an engine dyno with a 4.0l Lexus V8 motor, and will have an external electric oil pump and some datalogging equipment setup to measure its flow, PSI, kW required, etc.
I may also take the opportunity to rig up the OEM oil pump on the electric motor and run it in isolation to see what it actually puts out vs various RPM's and back pressures. This is all data that, AFAIK, doesn't get published anywhere in service manuals or hotrodding books, but I think would be very interesting and useful to have. Ditto with cooling pumps.
Thanks Randy and John
What you wrote is pretty much what my thoughts are and what Gordon said. He says that he never used and will use high volume oil pumps on a SBF. His opinion is that if you machine your block the correct way and take care about the oil flow there is no need for it. According to Gordon 20 PSI in idle and 50 PSI at higher RPM´s is sufficient when the enigne is hot.
I will go for D12 lines and a Typ 4 34 Row SETRAB oil cooler for the engine and a Typ 3 16 Row cooler with Dash 10 lines for the gearbox.
If it is to big i will use Randy method
TOM
What you wrote is pretty much what my thoughts are and what Gordon said. He says that he never used and will use high volume oil pumps on a SBF. His opinion is that if you machine your block the correct way and take care about the oil flow there is no need for it. According to Gordon 20 PSI in idle and 50 PSI at higher RPM´s is sufficient when the enigne is hot.
I will go for D12 lines and a Typ 4 34 Row SETRAB oil cooler for the engine and a Typ 3 16 Row cooler with Dash 10 lines for the gearbox.
If it is to big i will use Randy method
TOM
