Demand for tacho signal converters for "Lucas free" Griffs?
Demand for tacho signal converters for "Lucas free" Griffs?
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Discussion

dnb

Original Poster:

3,330 posts

271 months

Wednesday 16th June 2010
quotequote all
I built a prototype tacho signal converter last year that replaces all the electronics in the standard rev counter. It's worked pretty well, giving me a more accurate rev counter that works on a +12v signal instead of needing high voltage from the coil and as a bonus it significantly reduced the "bouncy tacho" problem. You do need to open the tacho casing to fit it, but it may be easier and quicker to do this than to find a Cerb tacho in the right colour...

Would there be sufficient demand for a small production run of tacho signal converters for those of us who have replaced or are planning to replace the Lucas electronics?

spend

12,581 posts

280 months

Wednesday 16th June 2010
quotequote all
You've certainly got a couple of Grifters that even I am aware of who have recently had their innards replaced by Caerbont to suit the ECU digital signal. Weighing up the options available the price didn't seem over the top when considering they effectively get a service & new 'working' parts at the same time?

ETB said they would do the same for the earlier tachos when I asked, but I guess you are referring only to the CAI dials?

There will still be a market to sell on your old 'black-box' tacho coil simulators to other RV8 fiddlers BTW hehe

dnb

Original Poster:

3,330 posts

271 months

Wednesday 16th June 2010
quotequote all
The solution works for all tachos, and isn't a "black box fiddler" type solution.

I haven't ever been particularly happy with certain Griff instrument servicers (for other reasons than this) which is why I found my own solution - even to the extent of fixing the non-linearity problem inherent in the coil.

spend

12,581 posts

280 months

Wednesday 16th June 2010
quotequote all
The black box comment was aimed at all those that have bought / been sold them as part of coil pack upgrades..

Pupp

12,948 posts

301 months

Thursday 17th June 2010
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More options the merrier I say, and can only be increasing numbers of owners going down this route. I use an Emerald piggy back module and it worked straight off with only the occasional spike being apparent.

cinquecento

558 posts

254 months

Friday 18th June 2010
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David,

Very timely.. I have all the electronic to look at doing this over the weekend (again as I have tried some of the MS/EDIS documented suggestions without luck)

Let me know/PM me details on estimated costs.. I'll be at the Growl again so could pick it up then?

anonymous-user

83 months

Friday 18th June 2010
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Interested +1

Pete500

151 posts

273 months

Friday 18th June 2010
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+1 for me. Per

jeboa

547 posts

290 months

Friday 18th June 2010
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+1 for me as well please. I have the dash out at the moment - any ideas on how quick you could have them available?

dnb

Original Poster:

3,330 posts

271 months

Friday 18th June 2010
quotequote all
I'm trying to fill up some space on a PCB order at the moment, so I would hope to have a few ready for the time of the Growl.