in need of a speedo

series3-2007 · Post by **series3-2007** » Fri Apr 04, 2014 9:57 pm

hi guys, picking all your brains need a new speedo for me truck, just curious as too what you can recommend its a 100m speedo, SD1 V8 mated to an LT77

stevieturbo · Post by **stevieturbo** » Sat Apr 05, 2014 12:28 pm

series3-2007 wrote:hi guys, picking all your brains need a new speedo for me truck, just curious as too what you can recommend its a 100m speedo, SD1 V8 mated to an LT77

So you have a speedo already ?

Or you need one that size ? mechanical or electric ?

Blown v8 · Post by **Blown v8** » Sat Apr 05, 2014 1:48 pm

Mechanical ones can be re calibrated,speedo cables can be custom made,
I always use speedycables

DaveEFI · Post by **DaveEFI** » Sat Apr 05, 2014 3:05 pm

Jaycar do a converter which takes in the pulses from a sensor and either multiplies or divides them - adjustable about x3 in either direction. Allowing near any electronic head to be used. Probably costs less than having a mechanical one re-calibrated. If you have no speedo drive at all it will work with toothed disc on the prop and a hall effect sensor.

stevieturbo · Post by **stevieturbo** » Sat Apr 05, 2014 4:02 pm

DaveEFI wrote:Jaycar do a converter which takes in the pulses from a sensor and either multiplies or divides them - adjustable about x3 in either direction. Allowing near any electronic head to be used. Probably costs less than having a mechanical one re-calibrated. If you have no speedo drive at all it will work with toothed disc on the prop and a hall effect sensor.

It does +/-100%

I have one...that said, last few times Ive checked their site it always says no stock.

So it's maybe been discontinued.

Ian Anderson · Post by **Ian Anderson** » Sat Apr 05, 2014 4:22 pm

Either ETB in the UK easy to deal wit
http://www.etbinstruments.com

or speedhut in USA
http://www.speedhut.com/gauges/

JSF55 · Post by **JSF55** » Sat Apr 05, 2014 8:11 pm

Speedhut

Ian Anderson · Post by **Ian Anderson** » Sat Apr 05, 2014 9:06 pm

Lots of USA GT 40 and similar cars are running the GPS speedo

Will find the satellites within15 secs of starting supposedly - unless you live in a long tunnel

Ian

DaveEFI · Post by **DaveEFI** » Sun Apr 06, 2014 8:20 am

stevieturbo wrote:
DaveEFI wrote:Jaycar do a converter which takes in the pulses from a sensor and either multiplies or divides them - adjustable about x3 in either direction. Allowing near any electronic head to be used. Probably costs less than having a mechanical one re-calibrated. If you have no speedo drive at all it will work with toothed disc on the prop and a hall effect sensor.
It does +/-100%

I have one...that said, last few times Ive checked their site it always says no stock.

So it's maybe been discontinued.

Ah - failing memory.

-/+ x2, then.

I've got one here - would be easy enough to copy the PCB if needed.

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