15-04-2014, 10:44 PM
(14-04-2014, 11:39 AM)nominous Wrote: Fair game. RTFM advised
Thanks for the info folks.
I was thinking about CHT's as well as EGT and manifold pressures. More monitoring is usually better than less.
Especially if you run it into an arduino or something to get a warning rather than monitoring gauges as the sensors are dirty cheap just the gauges that get pricey, and a mate of mine is building a multi-channel EGT monitor.
Is the stock temp sensor in the head or the block ?
Be warned of using an Arduino for accurate temperature measurement - you have to be very conscious of ground reference points - if you assume that the entire electrical system is a good common ground, you're going to get massively funky readings - you have to really have well shielded wires using their own seperate ground and good filtering on the power circuit... Problem being that the electrical system deals with hundreds of amps and fairly crude uncontrolled 6-pulse bridge rectifier with very little filtering - meaning that you get quite a bit of ripple, not to mention the other stuff that's on the electrical system!
The stock temperature sensor is in the thermostat housing after all the coolant has been round the block... Meaning if there's nothing in the head, there can still be water happily coming out the block waterways.
You may be best off placing another sensor in the actual waterways in the cylinder head - infact a great way of seeing if the head is aired is to keep the heaters blowing hot at your hands - that way when they go cold, you know it's got air in and to pull over immediately!
