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Re: 67-72 Electric speedo
I want one too!
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Re: 67-72 Electric speedo
So my donor car 99 Trans Am has a round pattern needle driven speedo but has a tach. Would this one work?
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Re: 67-72 Electric speedo
67c10rusrbuket, can I get the bracket and cover? How much and how do I get the items?
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Re: 67-72 Electric speedo
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Alright, finally have an update on mine. I changed some things around. Instead of running a separate light for the check eninge light I used the temp light location in the gas gage by cutting out the filter of the s10. Also swap the brake warning filter. After the initial start the 60lbs oil gauge was pegging so swapped a 80lbs gauge in.
Here is the big kicker. I'm not sure I'll be able to run this set up in my truck :waah:because the speedo reads 10x of what it should. I'm running a 2008 genIV ecm and tcm with a 4l60e. Does anyone know if the speedo pulse output can be changed in a tune? |
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10x or 10mph?
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I am having a similar issue, I have 00' 4.8L with 20" wheels/50 tires, 3.08 gears, and NV3500 manual trans. My speedo is about 2x what it should be (reads 90 at 45). Does this need to be adjusted with a tune due to the tall trans/gear/wheel size?
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I am having it tuned Thursday so hopefully that resolves the issue. If I have the wires on the VSS backward (the pigtail I bought just had 2 black wires), would this cause the speedo to read high or would it not read at all? The pigtail on the original harness had the purple vss wire on the right so I put the right black wire to the VSS lead to my speedo so I assume it is correct but thought I would ask, thanks.
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If those two wires are switched it wont make any difference.
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Any updates for this?
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It's been quite some time since I've posted on this page, but I've still found a lot of useful info including the write up on this Speedo conversion, so thanks for that. I'm hoping I can get some help wiring this thing. I've tried to follow the picture but it's a bit difficult with all the wires bundled together. Thanks again for the write up and any help is much appreciated. The bottom picture is what I have so far.
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It looks as though you have most of it figured out. You just need to tie the dash lights together and add ignition power, ground and a signal wire for the gas gauge. Is there something specifically you need to know?
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You can wire the truck side first if that makes it easier for you, it doesn't matter which you do first. Yes, all the gauges that are electric will need their own ignition power. |
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So I think I have this figured out, but I'm unsure of where the red and green wire go?
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On a more serious note... I have not done my swap yet and am out a few months due to moving etc. I am very thankful you fellas are figuring this out though. I may have missed it in here but when this is done and working right - I can still have my stock tach as well? Oh and you are very right! It's tricky! So you are right on time...:mm: |
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Yes, you can still have the factory tach, you just have to trim one side of the face of it slightly to clear the speedo. It doesn't show when installed so you will never notice it. I will look and see if I can find a pic.
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I'm not sure what that wire labeled ammeter is, but I probably wouldn't use that for ignition power. The gauges will have power already going to them, so you would just need to use that wire. The speedometer wire would come from the PCM.
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