Too close for comfort???

[fxdlryan]

I decided to go drysump on my 67 Chevelle project. There was no place in the engine compartment that would facilitate the capactiy I wanted(2.5 gallons or more) so the dry sump tank is where my rear seat used to be. There's a point where the -16AN hoses (main feed and return) run very close to the headers, almost touching. I pulled the headers and wrapped them with DEI Platinum header wrap and then I put fire sleeve over the -16 AN hoses for that portion of the run. I'm trying to follow the principle of having an almost downhill run from the tank to the pump and I honestly can't see any other way to run these lines. Any thoughts on if this will be safe for long term use?


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[Motorcitydak]

Are you running an oil cooler? Those lines will have oil flowing thru them constantly and that should keep heat in the line itself under control. It looks like those fittings are already placed so I assume you have them as far away as possible. Can you get a rubber lined mount in there to pull it closer to the frame? Once you get the engine running just check the headers exterior temp with a laser temp gun and also check the line. Do the same after driving the car around for a while and also at track days. Also an oil temp gauge would be good

[bergers59]

why not just run it up on the fender well with a longer line? Your way may work, but its not something i would be comfortable with doing

[DirtShark]

Or possibly run the line behind the fender well and come back to the fitting, somewhat similar to a bunch of us are running our AC lines...

[fxdlryan]

why not just run it up on the fender well with a longer line? Your way may work, but its not something i would be comfortable with doing
Maybe I was too focused on the distance the hose is running to the tank and running the hose up and down with the longer than normal length of the hose. As I'd heard it in the past, you want your oil hoses to run downhill from the tank to the pump without up and down elevation changes if at all possible, the longer the distance from the tank to the pump, the more critical the up and down becomes. I reached out to the pump manufacturer to seek his input on the up and down elevation change on top of the length of the lines, which will also increase going up and coming back down.

[charchri4]

Man I wouldn't sleep at night with oil lines that close to headers. If you could at least have an air gap it would help but I would worry about those lines frying. I was thinking maybe running a hard line till you clear the engine compartment. Either steel or something like aluminum AC lines would still pick up heat but no worries about melt downs.

[fxdlryan]

Sometimes it's best to step away from something and ask for a sanity check. Thanks for all of the input. After speaking with Bill Dailey, he said it would not be a problem to bring the lines up on the fender liner and then back down. Just for giggles, I made up a water level and measured level from the feed port on the tank to the where the lines would be on the fender liner and it was pretty close. That caused issues with clearance for the heater hoses and a few other things so I did some more poking and test routing. I was able to tuck the lines behind the shock tower mounts, get my clearance and still not run the lines up high. One thing I will have to do is to fabricate up something to make sure I hold the hoses against the shock towers and keep them well away from the wheel/tire. I think this is the best possible solution given my circumstances.
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[charchri4]

Looks much better!