WillieO

Trust they re gassed with the right stuff compatible replacement - not the R419a stuff in many cars these days. Does the condenser - the slimmer radiator in front of the main one get hot when you switch the aircon to auto? The sight glass round by the battery - what do you see? Does that get hot? Watch can be hot enough to burn you if its working right - means the coolness is getting to the cooler inside the car somewhere if the refridgerant is pumping heat to the condenser at the front. When you switch that aircon to auto you should hear the compressor come in, the engine speed up slightly and pretty soon smell that dry air fridge smell as if begins to chill.

By AdamR The old model normal Impreza did have the same pads but not the same discs as a zed and maybe the new basic turbo is still the same for all I know but the new STI version is has huge Brembos and the big gold Brembo calipers like on MAC1's modded zed if I'm not mistaken. The new STI is a totally different animal to the cooking turbo. The engine is with specially strengthened bridged block and sodium filled valves. 300 plus bhp from a 2 litre is something. 260 is stock UK STI and 220 stock Impreza WRX. This is the new model. The scooby site must have details I'd make sure which it was before taking one on as you could be well embarrassed up to license loosing speeds especially with modded ones as many are!

Different cars - I've driven my neighbours new STI with further uprated 300+bhp engine. I have to admit my face was sore grinning. It definitely hits 60 in less than 5. Its hard to get off the line cleanly because it has so much grip. It toasts clutches. Its great but different. Superb brakes too. I can understand how Scooby drivers rave about them. I'm sure its aerodynamics do it no favours at very high speed but not all off us get to drive on private test tracks to find the differences.

I've got some American article somewhere that states that the zed was the most aesthetically important car of the 90's. I agree. nuff said. soon be 3 years with it and not bored at all. Dont care who thinks I'm having a mid life crisis. Been havin it since I was 17!

Or Chris Witor - Superflex Supaflex or something like that - also about £50 delivered.

Dont forget to flush the lav either;) Isnt it an offence? Clean place though!

Is there any point in a 2nd AFM in the other side - surely the airflow must be identical on each so doing the multiply by 2 routine on the specially altered chip for the single AFM on one side must be the best way. Besides I dont think you can simply merge the 2 sensor connections.

never heard of such a thing - what is it?

tps connector wires - give em a waggle

Just shows how important balance can be? It looks like the ally fan has got itself out of balance, began vibrating, fatigued the water pump casting then found its freedom to eat the radiator. Of course could be totally wrong here Alternator is at a funny angle as well but maybe detached. Great these what went wrong quizzes. Wonder who pays? Fan designer or person who bought it! Why did they do it? The fans on a viscous coupling so the stock plastic one is the most efficient one anyway aerodynamically. A mod for the sake of modding?

UK/Europe auto car has :- Radiator that has 17% more area the equiv Japanese car It has two tanks built into main rad for autobox oil cooling It has a much larger engine oil cooler (approx twice the size) It has a diff oil cooler By AndyP Sorry to be pedantic but also has yet another transmission oil cooler parked in front of the engine oil cooler as well as the oil /water pipes in the main rad. At least on my 92K it does and it's stock. On the subject of older cars without decent transmission oil cooler - they probably survive due to having been driven well and not confined to city work where the transmission will get hot and tired.

Beware - they are almost misrepresenting a cheap i.e pennies, gold tolerance resistor as a silicon chip with implied some form of processing. It only distorts temp sensor readings nothing else. The way this "device" is supposed to work is by fooling the ecu into thinking the engine is cold and therefore making it run richer than it should when hot. Some simple cars might gain bhp at the expense of bad emmissions. Anybody daft enough to fit this in a TT zed would I think keep it permanently in safety boost and running too rich because the zed ecu doesnt let you play until the engine is warm enough. Not only would you get negative performance gain but you burn more fuel too. Just pull off the temp sensor connector for a similar effect! Its free and also pointless Verdict - crap

Avon ZZ3's any good? They look just like the famous SO2's!

Yup so the starter pinion mostly gives the ring gear a kick in the same 3 bunches of teeth so to speak. The wear is spread a bit because it isnt in exactly the same place each time as was said already. So by taking it off and shifting round by 60 degrees you can present the starter pinion with teeth that have never been kicked before - good as new;) Clever these mechanics! Once its engaged it'll ride thru the rough spots no problem. Plus a zed usually starts on half a turn. And you dont turn the gear over only round a bit as there will be chamfers on the side the pinion gear meshes into.

There is a two speed operation as well so maybe explains 2 relays. Not sure if this is on all turbos or only Euro ones. Theres a radiator fan relay and a radiator sub fan relay. They come on depending on ambient and road speed and engine temp and aircon demand.

About 4 litres unless you have an even bigger oil cooler than UK stock in which case maybe a little more. Zed oil capacity is quite small considering.

is it just possible that the splines are lined up spline of box to spline of clutchplate and butting if you see what I mean? Try putting it in 4th gear and turning the output shaft just slightly if thats possible. Never had to do this with a zed so forgive if not easily possible on a zed! Maybe put in the nose of the prop shaft into the box to turn the output shaft by hand a little. Or doh of course the gearstick is out too so you could turn the crank pulley a little to turn the engine instead. Sorry if unhelpful!

First check out the 2 short hoses just either side below the top water connection. They connect to each cylinder head. You'll need a small make up mirror and a torch. Do it when its hot and look for drips there. These hoses go every 3 years or so. The water drips down onto the water pump and eventually from the sump and can make it look like water pump. They tend to get a small crack in one of them and piss out water when really hot. I think a well duff water pump would leak even when cold tickover. Of course it could also be your water pump. But look at these hoses. Not too hard to change and only about £8 from Nissan. The hassle to change a water pump would suggest its false economy not using a new one if its gone. Get a manual and look at the diagrams of the cooling system - or there's an on line one. Willie

Sorry Paul its not a %age figure. The saving is supposed to come from the slower turning of ancilliaries like fan, water pump and alternator. i.e less hp per rev going to them due to the smaller pulley. That implies a fixed amount saved per rpm. So it doesnt matter whether NA or TT on a crank pulley. Its what the ancilliaries would have consumed and a bit for rotational inertia. Sure somebody will maybe say the pulleys are different sizes but I doubt if they are and if they are it wont be to that kind of extent. Also if that same argument was true on the different bhp savings the NA would get a lot less benefit than a TT and the guys who measured it got a big fat 12bhp on a TT and 12bhp was the maximum at a short band of rpm. The numbers these con performance guys quote would risk the trade descriptions act in UK. Big bhp improvement numbers seem to be bandied about everywhere without any objective substantiation. Even the Stillen mod staging chart looks a little bit suspect on some mods. They have a waffle get out clause about the state of your engine and wear, piston ring blow by etc if you dont see these sorts of gains when you do the mod. They are not stupid. caveat emptor or somfin that sounds like that!

Those quoted power figures for the UD pulley are in Shetland ponies not proper horses! We already had a bit of debate on here about the 12bhp actually measured at some rpm on a RR for a TT with UD pulleys. Do a search. Also why should the bhp savings be quoted different for a TT or NA on a pulley? This is BS. If they have to do it in pretty colours then you know its for the guys and gals who have everything else. The dosh is better spent on tyres and brakes! imho of course

Little ends exremely unlikely. I've never ever heard of worn little ends - piston end of the conrods on any engine. Maybe on 600000 mile taxi! Unfortunately a big end bearing can be the first to suffer when you have any oil starvation even for a few seconds. Did you ever let it go low and also give it a high rpm thrashing recently? Get another opinion. A good experienced mechanic should be able to tell if it is a big end. Big end knock tends to quieten when you load up the engine at low rpm and knock away when revved or under light load. Fits what you say about going quiet when in top gear. Best not to drive it if a big end is suspected as you'll only chew up the crankshaft journal affected. Maybe if not too damaged you might be able to get new bearing shells in by dropping the sump. Best of luck

Will the engine start with both boost pipes to the throtle body off? I know it might not rev properly but I thought it might start and idle - at least then you'd feel the draft from the good turbo side. And if one is siezed - how does it sieze? Is it the wheels corroded to body or shaft in bearing that sticks? Then is it even possible to take off the air inlet pipe to the suspect turbo and try to unsieze it by turning it?

Always vote for the opposition it keeps the incumbents honester! Instead of running around with Brazilian PAs and having moments of madness with total strangers on the common. Fact is if Clarkson was to run he'd get a lot of votes, for the wrong reasons obviously, but thats democracy! There's a lot of mileage in the motorist vote;) these days- ask anybody stuck in a jam. Tax on a tax with petrol then a mileage charge, then toll roads, then a GPS in your car that will report you speeding as well! Just be thankful you can still drive somthing as good as a zed for now. rant over..

"That" front view photo on Ebay has major perspective distortion. Its what you get when you use a wide angle lens close up. Makes the windscreen look miles away. It tells nothing about the state of that car other than its shiny and reddish and maybe centre panel between lights needs adjusting for bonnet gap eveness.

Wrong time of the month Stuart;) Rubbish my theory by all means with a considered technical argument, give constructive criticism - I can take it. The accumulated knowledge we all get grows with it and we can all learn then. I hope I have a little appreciation of engineering and my theories are not quite that way out!:) Willie