Where to Buy a Curtis Impulse Counter?
#46
Rennlist Member
Leave the blue wire disconnected. It can be used as an alternative to the grey reset button(Say you had 5 counts, if you grounded the blue wire it would reset to 0).
Red goes to switched power for the backlight, black goes to ground, and white goes to the KLR yes/no knocking output(pin 15 on the KLR plug).
Make sure the DIP switches are set for Current Sourcing Output as shown on page 6 in the manual.
http://www.redlion.net/Products/Grou...Docs/01024.pdf
Red goes to switched power for the backlight, black goes to ground, and white goes to the KLR yes/no knocking output(pin 15 on the KLR plug).
Make sure the DIP switches are set for Current Sourcing Output as shown on page 6 in the manual.
http://www.redlion.net/Products/Grou...Docs/01024.pdf
#47
Doh - that explains a lot... Thank you.
And I will double check the DIP switches again - I read the documentation a couple times and think I had them set up right, but it can't hurt to check.
Gonna do this tonight (or at some point this week, or this month)
https://rennlist.com/forums/4032788-post62.html
And I will double check the DIP switches again - I read the documentation a couple times and think I had them set up right, but it can't hurt to check.
Gonna do this tonight (or at some point this week, or this month)
https://rennlist.com/forums/4032788-post62.html
#50
Race Car
Join Date: Mar 2012
Location: Austin TX, drinking beer in the garage
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Is having a digital readout of knock counts really all that important if you have knock control via a standalone and datalogging? Ive been thinking about installing a knock counter, but my ecu already pulls timing and logs knock events so is it worth while beyond say, dyno tuning for best timing?
#51
Three Wheelin'
Knock counting is very useful for tuning. You do not want to rely on the DME pulling timing as a frontline defence. Conditions change from the dyno an it can be useful in flagging problems.
#52
I would rather know. There is a difference between 2 knocks per WOT run and 20, or 200. And I though I don't have knock control - other than the KLR - i'd prefer to have the visibility into what the engine management is seeing, so I can understand what it is doing.
#54
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Just seems like a lot of expense that im having trouble justifying when I can already get the same visibility in real time on my laptop. I wish there was a cheap solution.
#56
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Really? I actually thought about doing just that, but i wasnt sure if the knock sensor would output enough voltage to light it. So just ground the led, and attach the hot lead to the knock sensor output with idk, like a 1kohm resistor in line?
#58
Besides, if I did not like doing this kind of thing, I would not have bought a 25+ year old car.