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Old 01-12-2015, 05:34 PM   #41
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Just ran across this thread.

For the record, doing a rescaled speedo is pretty easy. I get a table of values from the customer that they generated, either by math or with a GPS. Then I re-scale the speedo. Since there's so many different tire/diff combos out there, I don't really have a pre-made selection of different speed scales saved. I always ask for a speed table.

I've done this for tachs as well. Ford V8 guys like to tweak the dashpot on the tach to give it a 7000 rpm end point. I've done a half dozen or so sets of this order.

And I don't do indiglo gauges. sorry. heh

And the thing that curly posted Lonnnnnng ago in the thread, would work pretty well. I could do a dual-scale gauge face. That would be pretty sweet actually. You can swap diffs as often as you like and leave the stock gear inside the transmission. When you swapped, one scale would become accurate and the other would no longer be used.
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Old 01-13-2015, 01:45 PM   #42
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I'd give a dollar to that. As long as it had unicorns on it. I'm thinking the rainbow as the speedo curve.
It better have Hello Kitty on it or Im not going to use it.
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Old 01-13-2015, 01:47 PM   #43
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It better have Hello Kitty on it or Im not going to use it.
As long as there is something immasculating and colorful I'm in.
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Old 01-27-2015, 02:50 AM   #44
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update. Nothing I found was working from the OEM mazda parts catalogs. but look what I found. looks like they have aftermarket mechanical speedo drive gears for 3.909 21T which mazda currently lists as no longer available and a 24 or 25 tooth for a 4.778

Maruha Driven Gear Set for NA | Chikara Motorsports Ltd.Chikara Motorsports Ltd.

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Old 01-27-2015, 10:39 AM   #45
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A question from the less than perfectly informed, could it be possible to merge a NB sensor with their NA stuff to make the 4.778 work in a NB senor?
4.778 is much closer to my 4.875 fg than my current 4.1 sensor gear
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Old 01-27-2015, 02:13 PM   #46
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A question from the less than perfectly informed, could it be possible to merge a NB sensor with their NA stuff to make the 4.778 work in a NB senor?
4.778 is much closer to my 4.875 fg than my current 4.1 sensor gear
I wounder if it would be possible to machine out the center shaft on a mechanical gear and somehow get just the plastic part to fit on the NB sensor shaft somehow.

I think the Chikara one is 24t based on trying to count teeth in fuzzy pictures. Its probably closer for a 4.6 than a 4.8. but better than a 22t or a 23t. a 25t would be better.
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Old 01-27-2015, 03:46 PM   #47
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Found this on a related google image search.

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Old 01-27-2015, 04:37 PM   #48
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Needs to be a Hello Kitty napkin.
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Old 01-28-2015, 12:35 AM   #49
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Here. I had some free time and did a mockup of the dual scale gauge.



You would LITERALLY not need anything else. Just pop a gauge in the cluster and let the stock speedo gear live a happy life in the transmission housing. Swap diffs at your leisure and just pay attention to the correct side of the gauge.
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Old 01-28-2015, 12:36 AM   #50
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Seriously, I have 5$ for a fund for that.
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Old 01-28-2015, 12:42 AM   #51
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Old 01-28-2015, 12:43 AM   #52
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tears. lol lol lol
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Old 01-28-2015, 12:44 AM   #53
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I don't actually want to take it live yet. Need to see if people are serious about it lol. And I need a better title and description
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Old 01-28-2015, 12:45 AM   #54
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Dang, that's an awesome gauge. But I'll stick with the plan at hand.
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Old 01-28-2015, 12:53 AM   #55
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Old 01-28-2015, 01:04 AM   #56
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Absolutely take it live. I will contribute. Hell I will even take one of the production run for my beer fridge.
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Old 01-28-2015, 01:05 AM   #57
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Alright, I need to get some stuff together. Rev, would it be the full 289 for custom gauges?
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Old 01-28-2015, 12:31 PM   #58
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For just the speedo, I'd be happy to do it for $30. That's my rate for singles. The design already exists (and was posted) and that dual speed scale SHOULD be accurate. It's just a mathematic scale though and not based on any GPS readings.

To do a whole set, I'd ask $169. I'd need to expand the design to the other four gauges. A set is $129 and I charge $40 per hour for design work. I don't see it taking more than an hour.

Custom gauges are always charged based on the time it takes to do. The $289 price on my site is just an estimate at 4 hours of labor and the base gauge fee.

Sorry that this post is so price and marketing heavy. If any of the staff is unhappy, please edit. Don't mean to anger anyone. I'm just answering questions.
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Old 01-28-2015, 12:41 PM   #59
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Old 01-28-2015, 12:45 PM   #60
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Scratch that, kickstarter takes too long. This is live now:

Pony Gauges For Bundy by Aidan Daly-Jensen - GoFundMe
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