hi mate it was my car and theres a thread on here somewhere about it...
here you go theres some pics...
http://www.themgzs.co.uk/vb/showthread.php?t=7048
Just to dispel all the myths about it ....i had a problem with it at cadwell park which was its seventh trackday, but tbh mileage was nothing to do with the problem it could have happened anytime, anywhere.
I was out on track hammering it round when the car suddenly was noticeably down on power and then i noticed it was overheating...trouble was i didnt notice and realise soon enough.
Water pump had failed, plastic impeller had broken and so of course being out on track flat out it got very hot very quick, under normal driving conditions you would have seen it getting hot and it wouldnt have been a problem.
Anyway i got pump swapped and it drove perfect , i wasnt even sure if it had another problem, seems it needed a new head gasket but i didnt know for sure at the time and it certainly didnt blow up, when i swapped the water pump it drove like normal...no mayo in the oil and no oil in the coolant or anything drastic like that.
Water pumps fail common on those engines and the usual upgrade is a pump with a metal impeller, that was the only issue, nothing to do with anything else, these engines run way more power on standard internals than mine was making with uprated internals.
Tbh i had decided i was selling before i even went to cadwell, so i didnt sell it because it was broken, martin said he would check it out and repair it if needed anyway so it was no issue.
Running expense was the issue, im a builder and we all know what the climate has been like in the uk last year...simple as that. Every trackday would be costing 450 -500 quid and that soon adds up when you have little work coming in.
Anyway about the conversion...Its the best bar none, can easily make the most power when its fitted but fitting costs....as does anything worthwile !
it looks o.e under the bonnet and runs like o.e and its one of the best blown 4 pot ever made, its what the zs needed all along.