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You hit a: (a) curb (b) kerb, or a (c) kurd?

Engineers often have to use simpler solutions than they'd like to save money. But they never add complexity and cost, like the acoustic valve, unless they're pretty sure there's some benefit. The acoustic valve was put there by the Renault engineers to do four things. Improve fuel consumption...

Who the hell do you think you are and we are that you "give us tasks". Look for yourself you lazy bugger.

Do not rely on it being out by that percentage at all speeds. I know from GPS that when mine reads 60 km/h its only doing 54 (10% out), but that only increases to 8 km/h out at 110, then it stays at about 8-10 km/h from there on up.

Those sorts of devices usually use sensors in road not radar or laser.

That, Tom, is an excellent suggestion. Go somewhere local and practice driving on a race track first. Go to a couple of track days. Then go to the 'Ring.

More expensive tyres aren't always better than cheaper ones, but it is generally true. Cheap tyres can match expensive tyres on one or two measures - dry grip, wet grip, noise, life - but they never match them on everything. It costs money in development costs and takes expensive expertise to...

Listen to edde on this. The factory shock absorber might not be the technically best part available, but the engineers involved put a lot of money and effort into the best settings. Suspension is an area where the settings are just as important as how technically good the part is. You can spend...

Substituting a straight-through cable where a cross-over cable is required, or vice versa, will mean the two devices won't be able to talk to each other. Unless one or the other has an "auto detect" port on it. Colours of cables don't tell you whether they are straight-through or cross-over...

90% of drivers would never notice if they had four very different tyres on their car. I have to admit myself that twice I've failed to notice flat rear tyres, including once driving 20 kms, including around a couple of roundabouts, and only realising a rear tyre was dead-flat because of the odd...

The problem with buying a remapped turbocharged car is that its possible to get quite large power increases that way. And if that was done the car could have been quite seriously overstressed and abused. Manufacturers don't limit the output of engines for no reason. Buying a remapped normally...

See under "exterior options". It says "tuning". He's admitting it is "tuned", just not specifying what has been done to it to get it up to the claimed 198 bhp.

Use them in the dry to take the green off them before you pass opinion on what they're like in the wet.

Water in the air isn't a problem. What would be a problem is if the intake faced upwards and rain got in while the car was stopped and accumulated. Or you went through a creek or a pool of water and a quantity of water got into the intake. You need the intake to be the lowest point (but not...

We had this argument a while back. The consensus seemed to be that with cars you can't have all three of cheap, quick and good. The best you can do is two out of three. You have to pick which two. Clio Sports are cheap and quick. After having a whole series of Japanese cars (cheap and good) I...

You beat me to it. I was going to ask him if it was him running off the road, or whether it had broken down and he'd had to park it there.

Note that whether the ECU considers the engine is warm enough to increase the rev limit to 7250 does not depend on the water temperature. It depends on the oil temperature. And in cold weather that can take quite a while to come up. I was doing some fuel economy testing of a claimed aerodynamic...

Correct. The lower gears a fair way apart, and even with a standard engine it might well improve your quarter mile time by being able to stay in first (and maybe even second) a bit longer so you you don't drop off the cam when when you go into the next gear. You could change at optimum revs...

That's gotta be a classic. A part that does absolutely nothing useful on a Clio, made out of an expensive lightweight material. I'm not sure whether that makes a lot of sense - if you are going to add weight for no reason at least add as little as possible - or no sense at all.

That settles the question of the power output: 197 ps = 194 bhp. Which leaves the question of what's different about the engine. There are a number of spec changes to produce more power at higher revs, but are there any significant engineering changes other than that the intake cam timing is...

The gears don't break. Its the synchros and the case that are weak. I seem to recollect that when I was whingeing about my gearbox having to be rebuilt there were people on this forum talking about better and/or heavier duty synchros being available. Then there's oils that are supposedly...

It sounds like Elephant thinks you lied.

For 1 mm? There's a lot more difference than that between different brands nominally same size tyres.

1. Maybe they were Cups that didn't have A/C to start with? Removing the A/C from a car that was fitted with it as standard would seem an expensive a drastic thing to do. 2. From my experience with multiple-carbed cars I'd think two dual-bore throttle bodies would be a lot cheaper and easier...

Some engines are better than you'd expect from their specification. That Toyota engine was the opposite. It was a disappointment. All the right engineering seems to be there, but somehow it just doesn't deliver. Put it in a car (well, anything but something as featherweight as an Elise) and...

gaiter g-a-i-t-e-r

No, you can't weigh your car one wheel at a time. Because of the springs and the anti-roll bars and the body rigidity transfer weight between the corners. Think about it. If you jack up the front right wheel the whole right hand side of the car gets lifted off the ground, so the jack must be...

no

Here, here. Everyone with a drivers licence thinks he's a sh*t-hot driver. But only a few can be. Go out on the track and have a go. Find out first whether you're any good. You'll only look like a complete idiot and embarrass yourself if you spend lots of money on the car, and get passed by...

If its not air still in the lines, its knockoff. http://www.bmsc.com.au/forums/rallying-technical/507-brake-pad-knock-off.html