Got an off the wall idea today and want to see if it's feasible. The oil pressure sensor on the APS TT kit is relocated to a flow through block, and a lot of owners have experienced a theoretical loss in pressure as indicated on the gauge, myself included. As I was installing some headers last weekend, I found the oil temp sensor above the oil filter.

Do you guys think the oil temp sensor and oil pressure sensors could be swapped to each others position??? Extending the wires wouldn't be a big deal at all, but what i need to know is if they will physically fit in the opposing position. I'd like to try this to see if this would solve the low pressure indications with the APS turbo kit.

 

I'm not sure why you refer to the pressure drop(as indicated) as theoretical? If you really want to verify your pressure gauge is accurate, why not attach a pressure gauge by removing the plug on the left side of the block? That way you will know if the loss is correct. If you performed a calculation based on oil volume, pressure, and additional passages, and came up with a loss in your calculations.....that would be theoretical. If you have a loss on a direct reading gauge, that is an actual loss.

 

Theoretical may not have been the best word. It was a false pressure loss. The sender in the stock location was the end of a passage, no flow through. The oil distribution block of the APS kit puts the sensor on a flow through location where the oil is being drawn to the turbo's, thus the pressure drop. Moving it to where the temp sending unit it might give a more realistic pressure reading, and i say might because that might be a flow through location too, but it'll probably be a little more realistic than where it is right now.

 

I see. I've never installed a TT setup, just an SC. So the factory oil pressure sensor is removed from under the intake manifold and relocated to a different location? , and the oil to the turbos is taken from under the intake manifold where the OPS was?

 

RIght. A hose runs from there to a distribution block where the twin lines to the turbo's are and the new location of the pressure sensor. Most people were seeing on average a 10 PSI drop on the gauge. I'm just trying to see if the pressure and temp sensors could be swapped for locations to get a better bead on the oil pressure as what I'm seeing right now is a false reading.

 

I wonder why they did not take oil from the left side of the block?, that's where my SC oil system plugs in. Seems it would make more sense, so you don't have to disturb the OPS, although, it does make it easier to change should it go bad now. I think you would be better off relocating the OPS to the left side of the block. If you change the location of the oil temp sensor, it might not read correctly for the actual temp in the pan.

 

Where's this port in the side of teh block? I may or may not have clearance to put the pressure sensor there.

 

It's on the left(drivers side) of the block almost all the way to the front, just below the head. I'll see if I can find a pic in sticky above.

 

Go to the oil pressure relocation sticky...post #59.

 

Awesome. I'll look into that. Those are 1/8 NPT threads on the sender, right?? Just got to make sure I've got a plug for the turbo distribution block. That, and see about wiring harness extension and routing.

 

I'm not certain on the threads, check the sticky, might be some info in there.