MaathewJT24

Edit: just in case its needed, its a 1990 twin turbo manual, jap import.

Hello, I have thick black smoke from the exhausts, in a pretty constant stream when driving. i also have overheating issues, there is no middle ground with that, as in the car starts, warms up and then keeps going till the water comes though the pressure relief valve on the water cap. thus far my plans are to replace the radiator with [http://www.zcentre.co.uk/index.php?page=shop.product_details&flypage=flypage.pbv.tpl&product_id=55&category_id=66&option=com_virtuemart&Itemid=7], which i dont mind doing cause im slowly want to upgrade parts and clean the car up, reason for changing the radiator is because the water pump has been changed, head gaskets done and the thermostat and temp sensor have been checked so i assume there is a blockage somewhere. next step, take engine out and look at possible changing the piston rings and check other seals for the smoke issue, as the turbos were clean and in good condition when the engine came out for head gasket trying to solve the over heating issue. so my real question is #1 is that radiator recommended? and is there anything else i should be looking into for the over heating, besides head gasket, sensor, water pump and thermostat #2 pulling the engine out is a big job, so before i do that again is there anything else i should look into first? thank you!

@mondo how much would the full interior cost? seats, panels, carpet the lot.

Sure, just need your address somehow.

I just got my tickets through, however my car has run into some mechanical issues and cannot attend. ill be going in an honda integra instead. so if anyobody can make use of my ticket - no track time. hit me up and you can have it.

I got some diagnostics on it and it came up with code 13, coolant temp sensor is faulty, ive read that this may tell the ecu the engine is cold when not, dump too much fuel in and bog the engine down, which is exactly how it feels because I have no power. I couldn't find one in this country on ebay or zcentre etc. I was hoping someone might have a part number I can use to locate one? thanks!

New turbos are in, new spark plugs, all new belts, new o2 sensors, some new hoses, all connectors cleaned. egr delete, cruise control delete, air con delete and a few bits im probably forgetting. engine bay looks a lot cleaner but first start up and run didn't go all that well, it runs and drives but not well. the car originally had no o2 sensors at all, the crank sensor plug had a resistor in it rather than being plugged in. wondering if that has anything to do with it, but running it with diagnostics sometime this week which should make it all clear I hope. *engine bay work wasn't to fix the original problem, turbos were shot so while engine was out thought id get everything I could up together.

*so Is that it for tickets now? I'd like to get one if anymore are ordered or someone drops out.

If this is still going, Matthew from Melksham.

I think the problem with boost was the little manual boost regulator. didnt seem to work properly and once removed the boost is perfect. He replaced the pivot ball for the clutch fork, told me he checked over the clutch and it was fine, however it has worn right down to the rivets and once the boost was sorted and it had all its power it would just slip.

Few issues, already fitted a new clutch, gauage cluster, sorted the intermittent boost and the fan heaters. there are some more things to iron out like leaky turbos etc

Smoke is white, and smells like oil burning. It doesn't usually smoke when just started up, if its sat idling it will start to and just steadily stream out. the worst time is when coming out of 60 roads and into town having to drive slow and then any stopping, large plumes of smoke woft out.

I think the guy was called Luke. I got it from Poole. Definitely up for some southwest meets next year.

@Icewhitebear That was my 300 in the bear workshops, atworth, i didn't realise there were so many 300's around this area. i had only ever seen a silver z in melksham once. And It would be really great if you could plug in to my ECU sometime. Regarding o2 sensors, i haven't actually seen any, there is a lot of unplugged wiring i need to go through, i think it could have possibly been an automatic convert. there is a lot of cleaning up to do. Car is smoking when letting off the throttle rather than when accelerating, from what ive heard that means it isn't leaking intake side. Thanks for the input.

I am not clued up mechanically as i should be concerning cars owning a 300, so im pretty much looking for options, ideas. so no compression test yet, as i wasnt sure what/how to check. that'll go on the list to do.