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914World.com _ 914World Garage _ Any pnw's got a spare tach ?
Posted by: Ductech Jul 12 2011, 07:26 PM
I bought a bunch of leds and resistor's on this crazy idea that i could make a shift light setup in a stock tach can. Any friends in the area that have a spare plane jane tacho that they could spare for experimenting? I will be running the shift light with my megasquirt. Also plan to do led backlighting to it at the same time so there could be a potential for starting to convert these to leds if anyone in the neighborhood would be interested. Let me know Thanks guys!
Posted by: PeeGreen 914 Jul 12 2011, 09:20 PM
Yeah, I have one.
Posted by: Ductech Jul 12 2011, 09:23 PM
Yeah, I have one.
Sweet
Wanna see my megasquirt install?
Posted by: PeeGreen 914 Jul 12 2011, 09:25 PM
I've been waiting to see your car for a while now 
I won't be able to be at the BBQ this weekend though. I am going to Packwood for the SCCA National Tour. 
Posted by: Ductech Jul 12 2011, 09:31 PM
What are you up to currently? you still in town?
Posted by: stugray Jul 12 2011, 09:32 PM
Let me know how it goes.
I am an EE and have a lot of experience with LEDs.
I build like 2000 watt fixtures for coral reef tanks.
I could probably make headlights with the spare parts I have ;-)
Anyway, I'd like to see what you learn.
Does the tach have a "pulse accumulator" that turns into a DC voltage?
If so, you could easily use that to dim a LED ballast or use a comparator to turn on individual LEDs at various RPMs.
I have never dug into one.
Oh, and I have at least two spare tachs.....
Stu
Posted by: Ductech Jul 12 2011, 09:35 PM
Let me know how it goes.
I am an EE and have a lot of experience with LEDs.
I build like 2000 watt fixtures for coral reef tanks.
I could probably make headlights with the spare parts I have ;-)
Anyway, I'd like to see what you learn.
Does the tach have a "pulse accumulator" that turns into a DC voltage?
If so, you could easily use that to dim a LED ballast or use a comparator to turn on individual LEDs at various RPMs.
I have never dug into one.
Oh, and I have at least two spare tachs.....
Stu
My Fi computer (megasquirt) has an optional daul tach light output so i will be making an f1 style shift light setup that overlays around the 5-7 grand section of the tach. That way when you hit say 5 grand the 5-6 grand section lights up. then you hit six and the 6 grand section lights up till 7,000
these will be controlled strictly by the ecu i have. I'll try to let everyone see the end product
Posted by: PeeGreen 914 Jul 12 2011, 09:44 PM
I'm in town until Friday night.
Feel free to swing by tomorrow or Thursday night.
Posted by: messix Jul 12 2011, 09:48 PM
i could get it from you jon and take it over to rich's on sat.
Posted by: Ductech Jul 12 2011, 09:57 PM
I'm in town until Friday night.
Feel free to swing by tomorrow or Thursday night.
I'll be by tomorrow, Thanks Jon!!
Posted by: PeeGreen 914 Jul 12 2011, 10:02 PM
Cool, I will be home after 7:30 
Posted by: Ductech Jul 12 2011, 10:32 PM
Cool, I will be home after 7:30
Cool I'll give you a ring tomorrow. Well I am off to go tune!
Posted by: Ductech Jul 12 2011, 10:32 PM
Cool, I will be home after 7:30
Cool I'll give you a ring tomorrow. Well I am off to go tune!
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