Type 4 oil flow diagram ?

[donporfi]

Do you have an oil flow diagram for the type 4 engine ?
In the 911 forum they showed me a flow diagram for a 6 cylinder engine, but I think it is totally different in a type 4.
My question would be if there is a pressure loss if I put two oil coolers in series in a type 4 engine ?

[Joe Ricard]

Why would you do this? The answer is reduced flow not pressure unless the coolers have massive tube ID.

Most people use the 30MM pump and then step up to an extra external cooler without any issue.

Is you case plumbed for full flow? if not then I don't recommend just using a sandwhich adapter under the fliter. they don't really work.

[TheCabinetmaker]

So long as you run fat hoses to big coolers, there should be no problem with a pressure drop. I run I believe it is 5/8 inch hoses, and an Empi 96 plate cooler with full flow filter. i have the bigger oil pump (30 mm gears) but even with a stock pump you should be ok.

for the multiple oil coolers, you should run them in parallel not in series, this will result in less pressure drop. In series the pressure drop will be more than in parallel.

[Dave at Pelican Parts]

Here are some diagrams from the factory manuals:










--DD

[donporfi]

Thanks for the diagrams.
This is why I am asking, this car has a dual oil cooler set-up, it was raced in two long run rallies that went from the desert to high altitude mountains. They only had to change two hose ends and use one oil cooler or two coolers. But wanted to know if this is a safe method to keep the oil temp at a safe operating temperature.