Hi,
I need of a water temp adapter to connect the sender of my gauge.I have seen that they exist of several dimensions,1"-1,25-1,50.Which it is that right one?Thanks for your help!

RacingBeat has one.

http://www.racingbeat.com/resultset.asp?partnumber=11493

mazdaparts sells the racing beat one as well for a bit less :) pic should be up soon

http://www.mazdaparts.com/ProductDetail.jsp?LISTID=2680000-1135401299

if you need gauges try this:

http://www.mazdaparts.com/SearchResults.jsp
water temp one in the description...high end defi stuff

so, what size do we need? i've seen some universal adapters. are those good?

I got my 34mm universal one from here: http://www.glowshiftdirect.com/Water-Hose-Adapters.aspx

The RX8 radiator pipe is 35mm, I measured. The 34mm was a bit loose but the hose clamps included have no problem clamping it tight. So 36mm might be a better choice if you don't mind a bit tighter and harder to slide in.

Racing beat one is the most easy to install. So choose your pick :)

where did u install the sensor at?

eva02: see my sticky thread in the Interior Electrical subofurm.

Here's a pic from the thread showing the location of my RB adapter.


http://i32.photobucket.com/albums/d37/Jedi54/Gauge%20Pod/P1000542.jpg