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Just a thought in case some of those following this thread are harboring doubts about the results you're getting...
It makes perfect sense that your ECTs are proving themselves reasonably stable under a variety of driving conditions, provided that (i) the thermostat can respond fast enough to modulate coolant flow from the lower radiator hose into the block in lock step with changes in the coolant temperature within the block, (ii) ambient temperatures are low enough that there's always a supply of relatively cold coolant available in the radiator, and (iii) you're never coming close to exceeding the overal capacity of the cooling system such that the thermostat never needs to be fully wide-open.
The driving conditions you describe -- highway driving under moderate throttle -- certainly meet those criteria. Only when you stop the car and let it idle do your temperatures climb -- which is also what one would expect, as the absence of airflow over the radiator results in the coolant in the radiator getting suddenly warmer until the fan kicks on. I see a very similar pattern in my car, even on the racetrack, given that I've got a lot of cooling capacity with the C&R radiator.
In short: this is looking very, very encouraging, and we're all very excited by what you're doing, Modifry.
Hey Guys ... obviously I am having the same ECT limitation as others with AEM EMS ... just beginning to track my Vortech SC'ed + 9lb boost pulley S2000 ... decided I would go with this customizable solution from Gauge-Tech
Gives the same output information (not the graphics) that you would evaluate by having your laptop plugged into your AEM EMS ... has programmable (variable) warning notification parameters ("if value greater than" ... "if value less than").
So ... does lots more than just detect the AEM ECT signal and output temperature.
I'll be interested in your feelings about this device after you've tracked the car with it. I'm assuming that it doesn't permit doing a lot (if any) datalogging.
I find that I only have attention for a limited number of engine parameters -- so I typically log the entire session on my laptop and then review the logs between each session. As long as everything is okay, I head back out without worrying.
While on the track, I generally watch only my boost gauge, EGT, and (hopefully soon) the ECT gauge with Modifry's help. I've got my CEL set to indicate a lean condition under 4 psi + of boost.
More than that, I'm not sure I can cognitively process while, at the same time, navigating the line, etc.
But it looks like a neat solution for daily driving so that you can have a quick look to insure everything is running normally. What did it cost?
Originally Posted by AusS2000,Oct 6 2004, 08:35 PM
I love those gauges, but whether I had one or not I'd like my temp gauge to be functional.
Actually, I really think that the S2000 6-bar ECT is really an inappropriate method for measuring S2000's with FI modifications ... If you have not modified your S2000 and you don't take it to the track, then those 6 little bars are just fine ... a "real" temperature gauge is better