Is it just the older generation - tyres and general understanding?

There IS a difference, but only during certain conditions, i.e cornering hard, braking whilst cornering, braking harshly in the wet etc... that's why average joe buys cheap tires.

You mean like if you have to perform an emergency manoeuvre, such as hard braking or swerving? It's not important for tyres to grip under those circumstances is it? :rolleyes:

With cars that have over run cut off, don't they still have to supply a small amount of fuel in each cycle?

So if you're engine breaking at 4000 rpm, it would still use more than freewheeling at 800 rpm?

(in a Honda b series engine)


No, why would you think this? Fuel cut is fuel cut, no fuel is injected at all on the over run above a certain RPM (which varies between cars).
 
My Conti's are definitely, obviously and demonstrably better than the cheap tyres I had before... (A couple of Events, a Jinyu and a Wanli)

You must have to be a total muppet to think that a £35 tyre is as good as an £85 tyre. If that were the case, there wouldn't be any £85 tyres...

I have some Conti's 3yrs old and they had all cracked on the groves .Each tyre had 3 rings of cracks all the way round them.I only did under 9k on them. To replace them was £85 a tyre. So I bought some Landsail tyres which had a double C rating. Better Rating than the Conti's and only £40 a tyre fitted:D

One happy muppet:p
 
Yep the air : fuel ratio on my MX5 goes through the roof on over run and the monitoring software gives me loads of red warning lights to say it's out of normal limits.
 
Horses for courses. My mum won't drive in the dark or wet and barely goes over 35 her tyres perish before they wear out. My dad on the other hand will drive through France at 130 on tyres showing canvas then replace them with ditchfinders.

I've given up trying to advise people as you end up being the righteous one.

My next door neighbour asked what x3 to buy, I said petrol as his missus just poodles around town. He bought the diesel then fills it up at the supermarket and now he's spent 3k on mystery running problems and it's forever with a back street garage. I asked if he'd taken it to BMW as there might be a software update or some advice they can give him but no he still takes it to daves arches because they are cheaper again and again.
 
Highlighted is the operative bit. Would an older car with less sophisticated engine management computer or a carburettor would still use fuel on the overrun?

A carburettor adds fuel by the simple Venturi effect. Therefore if there is air being sucked through it, it will add fuel equivalent to the amount of suck.
Old style injection systems used a flap in the air metering box, if the flap moved due to air being sucked past it, it added fuel equivalent to the distance the flap moved. The more suck, the more movement.

Modern systems dont work like that.
If you close the throttle pedal, you close the injectors, the Ecu only re opens the injectors to prevent stalling.
 
You're right about tires (when it comes to something that's crucial in keeping control of a car, "the cheapest one possible" really shouldn't be the criterion for which one to buy), but your supporting argument is wrong and a bit daft considering how common it is for people to pay much higher prices because of fashion and advertising.

Sure, but Acme didn't mention fashion or advertising? :confused:
 
Evening all,

After what turned into a rather heated debate at lunch today at work (lord knows why) it got me wondering the following :

Is it just the older generation that don't understand the concept of an engine using no fuel on the overrun whilst in gear or do many people assume that the engine constantly uses fuel? One person piped up and said where do the valves get the lead they require.. I asked him if a clue was that petrol was now called unleaded and he wasn't best impressed.
/

My father is the same. It because he was brought up with carbs that would use just as much fuel.
 
All tyres are the same?

Wut is he smoking?

Prada spec 2 vs Uniroyal rainsports 2 in the wet = night and day.

nearly crashed a few times on the Spec2's and now i can go round a bend at 50 in the wet without a hint of slide ;)

Tell him Tyres are different. lol
 
I have some Conti's 3yrs old and they had all cracked on the groves .Each tyre had 3 rings of cracks all the way round them.I only did under 9k on them. To replace them was £85 a tyre. So I bought some Landsail tyres which had a double C rating. Better Rating than the Conti's and only £40 a tyre fitted:D

One happy muppet:p

Rating /= real world performance

Premium tyres often don't last as long as cheap ones because cheap tyres go hard and then take ages to wear down. Once this happens they are very dangerous.

What Contis did you have out of curiosity? 9K over 3 years is very low mileage for the time. I have ContiPremiumContact2's.

I actually felt unsafe with the cheap tyres fitted, the car would break grip and lift-off-oversteer far far too easily, and loved to go in a straight line in the wet even while cornering at incredibly low speeds. I remember once taking a roundabout in the pouring rain at about 15MPH, I turned the steering wheel on the exit, and the car just slid slowly in a straight line towards the metal barrier at the side of the road. It was so slow and comical that I just braked slowly to a standstill while thinking "wow I need to change these tyres ASAP..." and they were gone a week later.

Good luck with your Landsails. Even the name doesn't exactly inspire confidence. ;)
 
Hell I once bought a car with budget Diamondback tyres fitted and had them changed the next day because they were outright dangerous in the wet, they would spin under normal acceleration lol.

I have had a similar experience. I bought a BMW 320d which came with 4 Autogrip tyres fitted, all had at least 6.5mm tread on them so they were pretty recently fitted.

I'd driven a fair few thousand miles on them in the decent weather and hadn't really had any issues but had been looking for an excuse to change the tyres as soon as possible anyway because a bit of research showed that the tyres on my car could be bought for about £32 which is just shocking.

Anyway when the rain started kicking it up a notch not too long ago I found that I was wheel spinning in the wet when moving off from a standstill and I was far from flooring it. These tyres still had at least 4mm all round by this point too. I've since replaced them with Pirellis all round and have had no more wheel spin incidents.

Granted, the crap tyres could've been better in the wet with more tread on them but 4mm is still a decent amount. I've only got 16 inch wheels on mine so even the Pirellis were only about £70 per tyre fitted - there's no excuse for using crap tyres there in my opinion.
 
Point him towards one of many mass tyre reviews i.e. evo.

That's provided he can actually read, otherwise tell him to look at the pictures.
 
WTB - Parachute with most of the cords missing. I realise it won't be ideal in some circumstances, but most of the time I won't notice the difference.

/flippant post
 
Mine came with Wanli's all-round, They had about 4-5mm left on them, They would start slipping driving like a granny around roundabouts, Wheel spin all over the shop, Even with easy pull-offs sometimes.
Changed them to Conti Prem 5's all-round and no more slipping or wheeling spinning at all, Unless intended ofc :D

They're Much quieter too, But wear much faster. 10-12k and they were down to about 2mm (fronts).
 
Driven well within the speed limit, like 'normal' people who simply drive to the shops and back no one is going to notice the difference between a cheap tire and an expensive one, that's my point. If you drove like a granny then you'd not be able to tell the difference either, but because you're into cars and drive them enthusiastically then you notice the difference.

You might notice the difference when you have to slam on the brakes but you don't stop in time because the wet braking distance of you cheapo tyres is about the same as a supertanker.
 
I'd bet even people who drive like grannies occasionally have to brake hard in wet conditions, where the difference between budget and premium tyres is immediately obvious.

I agree completely, but they will put it down to 'it was wet' and not blame the tires like we all would, that's my point, the tires aren't even in their thought pattern, they simply don't think about them and blame other factors, wet, road, idiot driver pulling out on them or slamming brakes on.
 
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