No, expansion tanks are what you have down the front to take the coolant that overflows from when it gets hot, then draws from that tank when it cools. The air/water separator tanks get the air out of your coolant system, they are normally mounted high in the engine bay and are used as your top up point for coolant.
Oh Ok. Well I have one mounted where the battery tray sits. Always thought they were called expansion tanks but have also heard header tank used. See pic below, this one which is combined with oil/air separator (on left) was made up by Andrew at UAS but apparently you can buy similar units for GTR. Not so common on Zeds due to lack of space! Ports and JP run these too although different setup.
yeah it does a alitte love this Z, if the sides of the rear wing were just alittle bit smaller i'd say that the best looking GT wing ive ever seen on a Z, doesnt look to 'out of place' as other GT wings do on 300's look nicer if it was a little lower aswell
