coolant filler cap

[chrisJDM]

by the way the temperature gauge is a load of crap, only ever goes to half way, you will prob only eva see it go over half way when your enigne has blown, useful!!!  This is a common thing with all 3rd Gen rx7\'s, it might be a good idea to get a aftermarket temp gauge  (//www.gaugeplace.co.uk theres a few on here that are quite cheap) or the more expensive route, a apexi power FC with a commander which gives you a digital reading of your tempature, i couldnt do without it now.  If you didnt know, an Apexi Power FC is a whole replacement ECU and is a very very good mod, and a commander is a hand held unit which can be used to map the ecu and also can display engine stats such as knock level, boost level, injector duty, water temp, air temp etc.  Even if you just have a standard engine can have it mapped to give you a little power gain and have the car run better, can have it mapped for UK fuel and also you can change the temperature that the radiator fans kick in.

You can usually pick up a Power FC and Commander for between £400-£600, ebay is a good place to look or try one of the tuners on here, got to make sure you get the right one thou, theres a different one for 1992-1996, 1996+, and i think there is one for sometihng like 1999+ but cant quite remember.  This is a very good price for the benefit you get, and seeing that a few years ago they cost alot more than this.

When it comes to getting it fitted and mapped everyone on here prefers different tuners so dont ask whos the best or you will start a argument lol its best to go for someone near you. i.e. Dragon @ Exeter, RX Motors @ Blandford, Re:Worx @ Portsmouth.