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Anyone done a Header Tank delete - Filler neck on Thermostat


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  • Member For: 18y 11m 22d
  • Gender: Male
  • Location: Central Queensland

I'm considering deleting the header tank and installing a thermostat housing with a radiator cap.

 

Like this one - Click here

 

Has anyone here done this mod?

Are there any issues with aeration of the cooling system and overheating?

Does the system require a higher pressure cap?

Does the system lose water and require constant monitoring, due to pressure relief of the cap?

Did you install an overflow tank?

 

Cheers

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  • XR50T
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  • Member For: 12y 16d
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  • Location: Western Sydney

Did it a while back.
It's a pain to bleed properly.
Runs the same temps.

Needs a 20psi cap or it will pour out, consider the factory cap is 16lb and is on the low temp side. Your moving it to the high temp side so pressure is higher.

You will need to run a return style cap with an overflow tank. It will have to have the line from the cap run to a pickup tube in the overflow tank to allow the coolant to be returned to the system once it cools and has lower/negative pressure.

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  • Bronze Donating Members
  • Member For: 11y 10m 16d
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Are there any benefits to doing this?   Is it room in the bay & aesthetics or is there some other reason?   Asking because I've always thought the header tank on the falcons made life so much easier

  • XR50T
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  • Member For: 12y 16d
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  • Location: Western Sydney

It's more for the weekend cars that want bigger turbos and a cleaner bay.

If you daily it or have had temp issues it's probably best not to.

  • Member
  • Member For: 18y 11m 22d
  • Gender: Male
  • Location: Central Queensland

I don't think that it would be a concern, even if it was a daily. Essentially the system will run the same. I also think that most that do this mod will/are running a bigger alloy radiator.

 

Primarily, I am planning on running it for both cosmetic and practical reasons. As coolant comes out of the filler neck barb on my aftermarket header tank anyway. So, I may as well eliminate that issue and delete those pesky coolant lines, that will interfere with the new carbon fiber air box that I'm building...

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