Sound cheers for the advice all.

Most engine mods that fit the 1.8 120 (and 1.4 105 in Ireland) will fit the 1.6 110, obvioulsy though things will be a bit different on the V6. Suspension will fit the lot though.

Induction, exhausts, springs, etc. for a 120 should fit the 110. 180 and 115TD springs are stiffer as the engines are heavier.

It's been said above really, but PTP are your best call for serious 1.6 modding. I would also imagine things which 1.4 ZR drivers tend to do will probably work on the 1.6 . Things like bigger throttle bodies and the like.

I contacted PTP a couple of months back they offer a conversion from 1600 to 1800cc with new cams RS140 it's called, here's the leaflet - it's not cheap but it is fitted and re-mapped...

http://www.zscentral.com/phpbb2/upload/98.JPG

Another thing, don't know if this applies to the mk2 110ZS but the mk1 did not have ZS suspension it was the same as the 45.

I fitted brand new ZS180 struts to my Rover 45 and it improved the handling no end along with new top arms, this changes the front castor (they are actually Rover 45 items swapped left to right an vice a versa), however the downside was it was very firm and you feel every imperfection in the road.

They are coming off the Rover, probably next week and will be for sale...