Lotus Elan Central

by **GeoffSmith** » Mon 14.04.2008, 12:55

surferphil wrote:But how can it be done?

Oh, b****cks! :twisted:

What colour do you want?

by **surfboardfiller** » Mon 14.04.2008, 17:10

GeoffSmith wrote:
surferphil wrote:But how can it be done?

Oh, b****cks! What colour do you want?

RED! like your car. :-D

by **GeoffSmith** » Wed 16.04.2008, 19:54

OK I've got a couple of ideas for the shift light but I obviously need to find a decent tacho signal. Where did you pick yours up from Ailwyn?

Before I embark on this and buy in some development parts, how much are you expecting to pay Matt, Omnipotent boy and Phil? Also, is anyone else interested?

by **ailwyn** » Wed 16.04.2008, 20:19

I think (pretty sure) I picked it up from the VSS coming out of the instrument cluster, but I can check on the weekend.

by **Nige** » Wed 16.04.2008, 20:19

I'd be interested, I quite often hit the limiter on track as the other noise and helmet changes the aural experience significantly. There are a number of off the shelf options available PNM engineering had some neat ones on their stand at Donington.

by **Monty** » Wed 16.04.2008, 21:11

ailwyn wrote:I think (pretty sure) I picked it up from the VSS coming out of the instrument cluster, but I can check on the weekend.

I white/grey wire comes to mind as once i had to test the wire when the rev counter packed up on Pinky1, but it was 4/5 years ago

You know that i`m in Geoff :wink:

by **GeoffSmith** » Wed 16.04.2008, 22:09

Monty wrote:white/grey wire

Nearly. White and Slate!

Probably the easiest thing is to pick up the three rev counter connections pass through an interface box and then take them off to a suitable panel mounting LED.

Is 1cm diameter too big?

It will take longer to develop but do you want it to change from green to yellow to red as you approach the redline?

by **GeoffSmith** » Wed 16.04.2008, 22:26

You could always get this for $179....

How about this for a 1cm diameter LED?

[110-5456]

by **surfboardfiller** » Wed 16.04.2008, 22:30

GeoffSmith wrote:
Monty wrote:white/grey wire

Nearly. White and Slate!

Probably the easiest thing is to pick up the three rev counter connections pass through an interface box and then take them off to a suitable panel mounting LED.

Is 1cm diameter too big?

It will take longer to develop but do you want it to change from green to yellow to red as you approach the redline?

Not for me off or on/red: Off until approach the redline and up to the limiter. I'd like it on as a warning rather than a nanny telling me when to change gear :-D

If you are talking about the size of the LED how about ~5mm RED will show up nicely on my white dials. :wink:

by **GeoffSmith** » Wed 16.04.2008, 22:35

surferphil wrote:Not for me off or on/red

So you don't fancy this for £100 + VAT!

by **GeoffSmith** » Wed 16.04.2008, 22:44

surferphil wrote:If you are talking about the size of the LED how about ~5mm RED will show up nicely on my white dials.

White dials will probably want a silver bezel then:

[110-5264]

by **surfboardfiller** » Wed 16.04.2008, 23:08

How about a 5mm diffused LED, like the one on my Clifford alarm
with no bling just pushed through a hole, just big enough and glued to the dash on the back with a hot glue gun? :wink:

by **GeoffSmith** » Wed 16.04.2008, 23:30

surferphil wrote:How about a 5mm diffused LED, like the one on my Clifford alarm
with no bling just pushed through a hole, just big enough and glued to the dash on the back with a hot glue gun?

That will be extra sir! :-D

[1003220]

by **GeoffSmith** » Wed 16.04.2008, 23:32

Or how about something connected to your helmet?

500V up your manhood should get you to change gear. :smt044

by **surfboardfiller** » Wed 16.04.2008, 23:44

Don't ruin it now Geoff,

you were doing so well! :roll:

by **Monty** » Wed 16.04.2008, 23:51

GeoffSmith wrote:It will take longer to develop but do you want it to change from green to yellow to red as you approach the redline?

What ever is easy for you Geoff, will this be adjustable or will it be set to 7k revs?

Agree with phil just a nice little LED poking through the instrument cluster :wink:

by **ailwyn** » Thu 17.04.2008, 08:47

Monty wrote:will this be adjustable or will it be set to 7k revs?

I guess that would depend on how much you wanted to pay Geoff? It's going to be a lot easier to have a fixed point, even if Geoff does it individually, than building all the extra bits needed for you to set it yourself.

by **GeoffSmith** » Thu 17.04.2008, 08:48

It could be either (depending on how I design it). I think the better option is to have it adjustable, as you probably want to tweak the value to suit your driving style/use.

The LED is academic really - you can choose whichever size/style/colour you want.

by **Monty** » Thu 17.04.2008, 10:49

I`m all for keeping it simple, if you decide to go for a fixed point then what would be the best setting? 6.5k

by **GeoffSmith** » Fri 18.04.2008, 20:56

OK. I brought a portable 'scope home to make life easy....... NOT. Battery is shagged and won't even run off mains. :evil:

Down with the big beast from the loft and the tacho signal is ideal.

I'm going the easy route (analogue) rather than digital as my brain's not up to software at the minute. I think I can get quite good notional accuracy (I'll check it out on the bench and on my car anyway) and should be able to give you a variable setting from (say) 6500 to 7000RPM.

Thinking of Ailwyn's HUD, I'm wondering if a narrow angle high intensity LED shining up from the dash cover would reflect sufficient back off the windscreen so that the warning is directly in your line of sight. Any thoughts A?

I should have a couple ready for Phil and Nige at CC to try out. When is your next track day Jay?

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