Mazda Rotary Club

General => General Technical => I. C. E. & Electrical => Topic started by: RedRummy on May 08, 2007, 09:58:46 PM

Title: Which Kph to Mph converter?
Post by: RedRummy on May 08, 2007, 09:58:46 PM
which one of these should I get to convert my \'94 Type R FD3S speedo to Mph...

This one which says Digital converter...
eBay converter 1 (http://cgi.ebay.co.uk/SPEEDO-CONVERTER-DELIMITER-MAZDA-BONGO-323-MX3-5-6-RX7_W0QQitemZ290111782996QQihZ019QQcategoryZ52640QQrdZ1QQssPageNameZWD4VQQcmdZViewItem)

or this one which doesn\'t mention digital...
eBay converter 2 (http://cgi.ebay.co.uk/MAZDA-RX7-BONGO-SPEEDO-CONVERTER-DELIMITER-CHIP_W0QQitemZ300109184319QQihZ020QQcategoryZ52640QQrdZ1QQssPageNameZWD4VQQcmdZViewItem)

My speedo gauge is the standard one... reads up to 180Kph with a digital trip counter
Title: Which Kph to Mph converter?
Post by: interloper393 on May 08, 2007, 10:32:37 PM
i was about to buy the 2nd one, was looking for a cheaper one tho lol.. have a local guy changing the total km into miles to :)
Title: Which Kph to Mph converter?
Post by: kev-yorks on May 08, 2007, 10:52:45 PM
Neither as they are both fixed rate converters go for an adjustable one such as the speedo healer or yellow box that way you can recalibrate when you swap wheel/tyre sizes.
Kevin
Title: Which Kph to Mph converter?
Post by: RedRummy on May 08, 2007, 11:09:25 PM
what like this Yellow Box (http://www.blackrobotics.com/yb_home.htm) or this SpeedoHealer (http://www.speedohealer.com/eng/intro.htm)

they only seem to be for bikes ?!
Title: Which Kph to Mph converter?
Post by: kev-yorks on May 08, 2007, 11:16:34 PM
You\'ve got it if your going really radical at any point with wheel sizes the speedo healer has a slightly wider range of adjustment forget about the fact they are advertised for bikes they work just as well on a car. I\'ve used the yelow box on a previous car and the speedo healer has been on this one for the last three years without any issues at all. There websites give a formula for working out rough settings then you can fine tune from there to get it bang on.
Kevin
Title: Which Kph to Mph converter?
Post by: RedRummy on May 09, 2007, 12:10:08 AM
ok, cool, will give it a look...

I\'ve currently got 17" OZRacing rims on, and my speedo seems really far off...

should be 160Kmph = 100Mph (1.6km = 1mile), but my speedo reads 180Kmph at 100mph (measured using gps, not accurate i know but...)
Title: Which Kph to Mph converter?
Post by: RedRummy on May 09, 2007, 12:35:16 AM
just had a look, and they look great - much better than the fixed rate ones, you;re right...

any ideas which is better - the yellow box or the speedohealer?

neither of them take paypal, and I can\'t work out which speedohealer to choose - so many variants!?

YellowBox looks much simpler, but looks like it ships from Aus?
Title: Which Kph to Mph converter?
Post by: kev-yorks on May 09, 2007, 05:53:52 AM
Do a search on ebay theres a shop on there that sell speedo healers and take paypal I\'ll try and find a link tonight.
Kevin
Title: Which Kph to Mph converter?
Post by: RedRummy on May 09, 2007, 01:34:27 PM
ok, will do, ta