×

Sale ends todayGet 30% off any course (excluding packages)

Ends in --- --- ---

K24 coolant pressure sensor location

Off Topic Discussion

Forum Posts

Courses

Blog

Tech Articles

If it's not really about tuning or wiring. Then it belongs in here.

= Resolved threads

Author
1604 Views

Where is the best location for a coolant pressure sensor we currently have it on the head where the Honda kseries have the coolant bypass tube I find that it gets very non stable readings here’s and example goto start making a pull its reading roughly 20 boost comes up tons arnt much over maybe 4-5k I’ve had it say 40psi for less than a millisecond then it suddenly is reading in the 20s no higher untill you let off once you let off it reads less than 1 psi engine didn’t push any coolant on the pull I also made another pull at a higher boost pressure and it was anywhere from 10-24psi it has a 1.3bar rad cap I’ve also seen it reading less than a psi cruising basically I can’t trust the reading because it’s all over I’ve heard the water pump can affect the reading but where else can I really put this sensor that would work better? The sensor it’s screwed directly into the bypass btw is there a need for a damper or extension tube like a exhaust back pressure sensor would use?

Any help would be awesome

I've found it's best to have the sensor on the high pressure side of the pump (outlet side). I have moved mine from the low pressure side to the high pressure side and the reading have been more consistent, though I also have some weird anomalies which I have to look into some more.

When it's on the low pressure side, it's pretty dependent on RPM... assuming you have a mechanical water pump...

Hi

For competition we would typically put the pressure sensor in the expansion/header tank as it will take into account the pressure of the air spring and you will see a direct correlation with temperature and how the cap regulates the system pressure.

Putting transducers directly in the head is never a good idea as they don't tend to last too long and placing them else where in the system will give you something other than actual cooling system pressure.

We usually reply within 12hrs (often sooner)

Need Help?

Need help choosing a course?

Experiencing website difficulties?

Or need to contact us for any other reason?