aero3113 Posted October 27, 2010 Report Posted October 27, 2010 Just curious, what type of 6 volt tachometer do some of you use? Quote
aero3113 Posted October 27, 2010 Author Report Posted October 27, 2010 Anyone know what the max RPM's for a stock 218 is ? Quote
Frank Elder Posted October 27, 2010 Report Posted October 27, 2010 I think that we have to have a distributor driven tach, or is that just a 6V option???? Quote
TodFitch Posted October 27, 2010 Report Posted October 27, 2010 Anyone know what the max RPM's for a stock 218 is ? I've seen a factory BHP vs RPM curve that, if I recall correctly, went up to 4200 RPM. How much damage was being done to the engine, I can't say, but if they were testing up to that RPM they probably expected it to hold together at least for the test. Quote
moose Posted October 28, 2010 Report Posted October 28, 2010 I have a Jaguar tach on mine. It is a 12v neg ground unit and I am running it on my 6v pos ground system. I have it isolated from the ground, and use a 4AA battery pack on the power wire. Positive from the 6v pack to the tach, negative to the ground of the car. The ground from the tach goes to the negative battery post. The rebuilt '51 218 in my car has turned right up around 4300 under load. I'm scared to rev it too high otherwise. Also it has been pointed out that the ring groove in an engine that hasn't been rebuilt will crack the top ring of the pistons. All six of them in the case of my A... http://www430.pair.com/p15d24/mopar_forum/showthread.php?t=23115 Quote
Jim Yergin Posted October 28, 2010 Report Posted October 28, 2010 I have a vintage Sun Tach in my P12. Jim Yergin Quote
Reg Evans Posted October 28, 2010 Report Posted October 28, 2010 This 6 volt tach was a B-Day gift from my wife. I haven't installed it yet cause I can't decide which of my beaters to install it in. Quote
T120 Posted October 28, 2010 Report Posted October 28, 2010 I have a vintage Sun Tach in my P12. Jim Yergin Hi Jim,What transmitter are you using for your tach? Quote
Jim Yergin Posted October 28, 2010 Report Posted October 28, 2010 Hi Jim,What transmitter are you using for your tach? Ralph, I believe it is an EB-2A. Jim Yergin Quote
T120 Posted October 28, 2010 Report Posted October 28, 2010 ..Jim,Thanks for the info.I've got one of those tachs -I'll be on the lookout for the transmitter. Ralph Quote
aero3113 Posted November 13, 2010 Author Report Posted November 13, 2010 I bought this 6 volt tach from Powerhouse, does anyone know where the wires hook up? The red and white are connected together and marked as ground, the green is marked coil and the second white wire and the black wire are unmarked. He changed over to 12 volts a little while ago and forgot where the wires go. Quote
Powerhouse Posted November 16, 2010 Report Posted November 16, 2010 (edited) I think one was hot/neg(black) and one was light(white)...which never worked since I got it. REG EVANS, if you are out there...can you check the wiring diagram for yours? it's the same kind. Thanks. Maybe call tachshack or gauge guys as his packaging displays.... Edited November 16, 2010 by Powerhouse Quote
Reg Evans Posted November 16, 2010 Report Posted November 16, 2010 OK.....Here are the instructions that came with mine. Quote
aero3113 Posted March 15, 2011 Author Report Posted March 15, 2011 I repainted the tach that I got from Powerhouse today and also Installed it, I still have to hook up the wiring but I think it makes a nice addition and will help with tuning and monitoring the engine. Quote
aero3113 Posted March 16, 2011 Author Report Posted March 16, 2011 Not sure what I am doing wrong but I have tried every combination with the wiring and hooking it up. I had the red and white hooked up to ground and the black to power, the red and white to power and the black to ground. The green wire is going to the NEG terminal on the coil and I have also tried the POS side with no luck. The single white wire is is for the light, does that need to be hooked up for the gauge work? I don't think so? Any ideas? Any way to test the gauge? Quote
T120 Posted March 17, 2011 Report Posted March 17, 2011 I'm not familiar with this particular make of tach.But I have installed tachs on 6volt pos ground vehicles.From following Reg's instructions,I believe it should be installed as follows: Black - to chassis ground Green - to distributor Red - to ignition switch side of coil (I would use an inline fuse) White -to dash light (switched) White -to chassis ground If all your connections are good using these connections and the tach doesn't work,the tach may be defective.(The white wire connections are optional and are not required for the tach to work) Quote
James_Douglas Posted March 17, 2011 Report Posted March 17, 2011 Just curious, what type of 6 volt tachometer do some of you use? I use one, 6V, built by these folks. http://www.westach.com/ They can do other faces and more sweep than what is shown on their web site. Quote
aero3113 Posted March 19, 2011 Author Report Posted March 19, 2011 (edited) I got it working today,must of been a bad ground Click on the picture Edited March 19, 2011 by aero3113 Quote
55 Fargo Posted March 19, 2011 Report Posted March 19, 2011 What is a good idle RPM? 450 -500 rpm Quote
aero3113 Posted March 19, 2011 Author Report Posted March 19, 2011 I'm not sure if the gauge is working correctly, at idle with the internal switch on 6 cylinder it is at around 250 RPM. If I switch it to 4 Cylinder it jumps up to around 500 RPM which seems correct. When I step on the gas it will only go up to 1500 RPM?? You can see in the above video what I am talking about . Any suggestions? Is there a adjustment pot internal? When I get some time I will check. Quote
aero3113 Posted March 19, 2011 Author Report Posted March 19, 2011 I figured it out, Powerhouse made a new face for me and it was hitting the needle. I trimmed it and all is good . Quote
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