Valveman

Falken 452's. These are perfect for both applications. They also give a superb ride, so much better than the RE40's and for about £480 a set (you may find them cheaper) I think they are excellent. I did 2 track days (well evenings actually) last year with 452's and the grip was very good. It's the suspension that limits the zed on the track not the tyres so the 452's will be ideal.

Please read my post above. The car will be traded on Wednesday whether someone buys it or not! I have owned and sold cars since 1974, so I have a good experience of buying and selling. People buy cars on condition and mileage, and obviously price, not because of any dyno results. To be honest any extra performance is barely noticeable, however the driveablity of the car is transformed. It is a pitty Nissan could not have done this from the start. If anyone does buy the car before Wednesday then they will get the published Dyno results together with all the other documentation. For information all the garages I took the 350Z too all said it was one of the best they had ever seen, hence I got offered a good trade in price for it.

I am selling a car here not posting dyno results. Car BHP figures are always quoted at the flywheel and not the hubs hence why I quoted what the flywheel results would be. What's wrong with sending me a PM instead of trying to rubbish my advert!

This car will be traded on Wednesday. Any one interested has until Wednesday 28th Sept.

Price Update as I have found my next car £11500

2006 (56 Plate) UK 350Z with GT Pack in metallic gunmetal grey NOW SOLD.

I doubt you will get winter tyres/all weather tyres in low profile sizes and even if you could they would be useless in this bad weather as they are too wide. You need thin narrow wheels and tyres for snow driving and then it is still very risky as other motorists can easily hit you. A 350Z or any high performance car with wide low profile tyres is a no go in any snow or similar winter conditions. Just leave the car in the garage or lock your keys away until the snow and bad weather clears.

The 912's are not going to perform like 452's........

Good too on the track - if only I can reduce that body roll.............

The Michelins are more than double the price of say the T1R's and 452's. The Toyo T1Rs will be good as will the 452's. The ride quality of these tyres over the RE40's will be a significant improvement. My Z has about 330HP and I have no problems with grip in the wet with 452's. Ride is excellent too. One thing to check which hasn't been mentioned on this thread is insurance. I have heard of insurance claims not being honoured if non standard or non manufacturers specified tyres are fitted. Don't forget that insurance companies are just looking for any excuses not to pay out if a claim is made and this is one of them.

Cleaning the TB won't make any difference. Best to take it to a Nissan garage or a 350Z specialist like Abbey Motorsport and get them to sort it out as there may be a chance some damage might be done to your engine if the fault is left unchecked. Engines today run withing very tight limits and if these are exceeded for extended periods potential damage may occur. At the very least you should get the throttle position sensor checked and adjusted if necessary.

If you have the 06 296 engine then you need the Uprev remap. With this low down torque and drive ability is simple not an issue over earlier models. It transforms this car into something even more special.

Regarding your initial comment about the Boxster/Cayman being a "poor mans 911" well both cars share many of the same parts, in fact I think many would be very surprised to learn how many parts are the same in both models. I read a test about a year ago where a Cayman S was timed against a 911 (997) C2 around a race track (I think it was Bedford Autodrome) and the Caymen S was quicker round the track than the 911 by about a second a lap. Having owned some pretty rare 911's over the years and driven some of the newer ones I can confirm that I would take a Cayman S over the 911 any day - its just more of a drivers car and it handles better too.

Yes do, every 20,000 miles or every 2 years. The only replacement parts you may need would be tyres and these are probably no different in price to your 370Z. I drove a Cayman S (with ceramic brakes) round the new Porsche Test track at Silverstone and it was sublime. The lighter brakes made it handle even better than the standard car which is also excellent.

Thanks for the erudite response Valveman. I don't remember you being in my car when I've clocked up 150 laps at Castle Combe or the 3 sets of tuition I've had. Must be my age. Ekona has very kindly already identified that he thinks using the D1 is not a good idea and as he seems to have a lot more track experience then me, I'll take his advice and turn it off. However, I'm still unimpressed with the tyres and will be changing next time round. What about tyre pressures - did you reduce them before going out on track because if you didn't this will have a huge impact on grip levels. My first track day about 10 years ago in 964 Carrera RS and I spun off on the warming up laps with an instructor leading us around just showing us the track. The tyre pressures were 32 psi before going on track but when I got back they had gone up to 45psi so I was only running on the centre of the tyre. I took me 3 sessions to get the pressures right so I had proper grip, and ended up with about 15-20psi coming out of the tyre....