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19

It signifies that the car is running absolutely correct. Here is the reason why: A gasoline (petrol) molecule is made up as such: C8H18 (or 8 Carbon atoms and 18 Hydrogen atoms) Energy is obtained from the combustion of it by the conversion of a hydrocarbon to carbon dioxide and water. The combustion of octane follows this reaction: 2 C8H18 + 25 O2 → ...


11

tl;dr: No. This sort of vehicle dynamics question best addressed by Racing Car Vehicle Dynamics What follows is a basic discussion at the high school physics level. As you will see from the reference text, high school physics is insufficient to statically model the complete vehicle system. A dynamic model is required to agree with easily obtainable ...


4

Every gallon of fuel your vehicle burns produces a gallon of water out of the exhaust. If the weather is cold you will see it as steam. If the rear of the exhaust system is still cold even in warm weather it will be for a short time after start-up, you will see the drips. On a hot engine/exhaust you will not see any drips from the tail-pipe. If there are ...


3

If driving with multiple filters, your vehicle will lose performance. Your car will have a greater restriction in the intake system from having to pass through two separate elements. You would, however, have cleaner air coming into the system, but at a cost of the performance. You'll have to have more gas pedal to compensate which would cause other issues as ...


3

If you use more than one air filter, you will make it harder for the engine to suck air into the intake manifold, meaning you will lose power. Less restrictive filters will give you more performance, but will allow more dirt into the engine. If you use something like a cone filter (like in the second picture), you will have a change in sound, especially ...


2

Sounds like the transmission is slipping. Check the fluid level, it that's correct take it back to the shop that just serviced the transmission.


2

Preface I ended up doing a fair bit of thinking and research on this, so I figure I may as well write up what I found. Thanks all those who responded, particularly BobCross. In the end though, I wanted an answer that went beyond calling a car a mystery box on balloons - I asked this question because I actually want to understand it. Intro - Tires Given ...


2

You have a lot of big questions here, so will try to answer them for you, but be ready for the diatribe of the century ;-) There is a simple rule when talking about power/torque output which goes: There is no replacement for displacement. If you increase the size of the four cylinder (through whatever method) to match the size of the six cylinder, you will ...


2

Reading through some of the Ducati forums has lead me to believe the selection between an open and closed clutch cover on these bikes is mostly for aesthetics. There is some consideration for cooling, but nothing which is earth shattering. So here is a list of pros and cons which I have compiled on the subject: Open vs Closed Clutch Covers - PROS: ...


1

A 'sudden' drop in mileage means a component has failed, especially if it was some time after the service. The first thing to do in this sort of event is to do a leak-off test on the injectors. If an injector has failed this will show it. A faulty injector will allow a lot more fuel through, usually accompanied with black smoke from the exhaust. Second ...


1

I pulled the following information from this site: Unless you are a professional motorcycle mechanic, you normally can not see whether a motorcycle has a wet or dry clutch just by looking at the bike. But if you know your Italian motorcycles, you probably have a pretty good idea which ones do. A wet clutch is called wet because it is actually wet ...


1

Ther are many faults that this can be caused by. A scan on your vehicles engine and transmission would be a good first step. You can try revving the engine whilst stationary and with the e/handbrake applied and the vehicle in 'Park'. If the engine will rev up into the 6000 RPM range you will know the engine is OK. If you cant achieve a high rev, you may have ...


1

If you say all the hoses and clamps are in good order, then the only other things that come to mind are the wastegate and exhaust manifold. Either the wastegate is opening too soon, or the exhaust manifold is leaking from the gasket or a crack. This would mean that either you lose boost too early, or you never get enough boost in the first place. Or, if ...


1

The car has not been driving long. As the others have said, the water comes from the combustion of the fuel. When the exhaust system is cold, it cools the exhaust enough that the water can condense. After a while of operation, the exhaust system heats up. The same water vapor is present in the exhaust, but it stays vapor and doesn't drip.


1

From Wikipedia: Brake horsepower (bhp) is the measure of an engine's horsepower before the loss in power caused by the gearbox, alternator, differential, water pump, and other auxiliary components such as power steering pump, muffled exhaust system, etc. Brake refers to a device which was used to load an engine and hold it at a desired rotational speed. ...


1

Your torque convertor has a convertor lock-up clutch. When reaching a nominal speed and engine RPM the convertor comes on and locks the convertor forming a slip free drive. When you use kick-down or near full throttle acceleration, the convertor clutch unlocks. This allows the stator in the convertor to allow torque multiplication and give the vehicle its ...


1

Id say something is wrong with the transmission from the fluid flush, it is not the easiest thing to flush transmission fluid, and in doing so with certain transmissions you can actually do more damage than good if not done right. What it sounds like is its not in the correct gear and shifting at the incorrect points, this would be caused by many things but ...


1

Working at drag strip has taught me one thing. That 1500 horsepower cars can and quite often run on pump 93oct. So does it. not really for street. Yet if you have I'd say 10.1 or higher compression with say 500 horses or more yeah but be careful timing is important. Most modern engines auto correct their timing by advancing or retarding ignition. If lower ...



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