Oil line routing for a six. Options

[SirAndy]

What looks to make the most sense is to go in at the top rear of the passenger fender and then down under the tank to come into the frunk.

Just be aware that any significant change in elevation will make oil changes a bitch.
Going over the top of the fender will make the lines run higher than the top of the oil tank which may also introduce issues.
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Isn't this the situation on any 911 with front cooler?

And your point is? (IMG:style_emoticons/default/confused24.gif)

If you have a significant high point in your routing, you will need 2 (or more) drain points in the system.
On my car the highest point is the small hump for the steering rack which can be overcome by jacking up the front of the car. I only have one drain at the lowest point close to the tank.

If you route your lines over the top of the fender you will need to add another drain point to the front of the car to be able to get oil out of that part of the system.
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[Tom1394racing]

Hi Pete

Here is what I did on my 914-6 GT project based on lots of input and studying on this site.

Front mounted cooler with oil lines entering on the driver's side through the driver's footwell.

[Tom1394racing]

I ran the stainless AN lines continuously along the rocker panel to the engine compartment.

[Tom1394racing]

I used braided AN lines for the engine scavenge line and ran it backwards across the gearbox like the early 911's did.

[Tom1394racing]

I brought the cooler lines and the oil tank feed line into the engine compartment secured with Adel clamps. The external T-stat was located on the driver's side.







I have put about 500 miles on the car and the oil temp stays rock steady at 180 deg F.

[Montreal914]

What looks to make the most sense is to go in at the top rear of the passenger fender and then down under the tank to come into the frunk.

Just be aware that any significant change in elevation will make oil changes a bitch.
Going over the top of the fender will make the lines run higher than the top of the oil tank which may also introduce issues.
(IMG:style_emoticons/default/popcorn[1].gif)

Isn't this the situation on any 911 with front cooler?

And your point is? (IMG:style_emoticons/default/confused24.gif)

If you have a significant high point in your routing, you will need 2 (or more) drain points in the system.
On my car the highest point is the small hump for the steering rack which can be overcome by jacking up the front of the car. I only have one drain at the lowest point close to the tank.

If you route your lines over the top of the fender you will need to add another drain point to the front of the car to be able to get oil out of that part of the system.
(IMG:style_emoticons/default/popcorn[1].gif)

Simply wondering what issues it was introducing, other than the drainage problem. I did always wonder how 911s were draining the cooler lines. (IMG:style_emoticons/default/confused24.gif)

There is always the debate or personal preferences of having (or not) hot oil lines inside the cabin due to heat but mostly risk in case of failure or collision. Failure probably is low, but collision is not controlable.

As Mark mentioned, there doesn't seem to be a perfect option only compromise.

[SirAndy]

There is always the debate or personal preferences of having (or not) hot oil lines inside the cabin due to heat but mostly risk in case of failure or collision. Failure probably is low, but collision is not controlable.

I've seen oil lines come apart at the track twice (not on my car), one time resulting in a spectacular fire. Both times the failures were at the fittings, not the lines themselves.

So yes, failure and collision are most certainly a concern.
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