Sign in to follow this  
Followers 0
brentn

Tapping trail tech into stock temp sensor?

6 posts in this topic

I have a trail tech vapor that uses it's own coolant temp sensor that taps into the coolant line.

Seems accurate enough, but I would love to get rid of it and run just the regular hoses again and was wondering if I could use the stock sensor?

Would there be any harm in wiring the coolant temp sensor wire for the trail tech in pair with the coolant temp sensor threaded into the head of the engine on my 2010 yz450?

Appreciate any feedback

Share this post


Link to post
Share on other sites

The trouble is that you can't run two ECU's into the same sensor concurrently without running into complications. Temp sensors work by grounding a signal voltage from the ECU or digital meter through a variable resistor. You'd be faced with having to prevent one unit from seeing the signal voltage from the other.

Plus, the two units may have completely different calibration ranges that they respond to. It's theoretically possible, but not likely.

Share this post


Link to post
Share on other sites

I was thinking that there could be complications, that's why I asked.

I appreciate the reply, and you answered my question!

Do you think that it would be worth tapping into the head for another sensor for more accurate readings?

Or are the readings fairly accurate when the sensor is placed in one of the coolant lines?

I never ride the bike when temps reach 100 degree's celcius which happens in really tight stuff sometimes. I'll turn it off and wait until i go further, but it had me wondering if 100 degree's was maybe 10 degrees lower than the actual temp of the inside of the cylinder head since the sensor is placed further away?

thanks

Share this post


Link to post
Share on other sites

Should be accurate enough. Use one the line coming from the head to the top of the radiators. That's the uncooled temperature.

No reason to stop at 100 ℃ (212 ℉). Your 50/50 coolant mix under a 1.1 bar cap won't boil until around 132 ℃ (270 ℉)

Share this post


Link to post
Share on other sites

I was thinking head gasket damage past 100 degree's, but obviously I'm being too cautious. What's the limit for coolant temp to where you can get head gasket damage?

Share this post


Link to post
Share on other sites

Boiling. Once boiling sets in, the coolant can't cool any more because it isn't a liquid.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0