58 votes

How do cars drive through deep water as shown on many videos online?

One of your questions as stated and not answered is: What is the recommended thing to do if you need to pass through an area that's been flooded? The answer to this has nothing to do with ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
39 votes
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How do cars drive through deep water as shown on many videos online?

The term you're looking for is Wading Depth which is specified by the manufacturer. They may surprise you, and its info you should know about your vehicle. Its in your manual, or search it online. ...
Criggie's user avatar
  • 2,908
26 votes

How do cars drive through deep water as shown on many videos online?

Generally the car shouldn't be driven through water! On your Yaris, where you had high revs, what would happen if your air intake was submerged would be that your engine would fill some cylinder(s) ...
Markus's user avatar
  • 1,136
23 votes
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Why or why not increase engine efficiency by running the car "fuel-lean" (using a turbo or supercharger)?

Lean ≠ More Air I believe the source of the misunderstanding is in how the term "lean" is being interpreted. A lean mixture doesn't indicate the presence of more air. It indicates the ...
Zaid's user avatar
  • 39.2k
19 votes
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When is a cold air intake system beneficial?

Does this mod ever give a measurable increase in power? tl;dr: yes, sometimes it works well. But... Your picture is a good illustration of some of the problems with just saying "cold air intake" and ...
Bob Cross's user avatar
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12 votes

How do cars drive through deep water as shown on many videos online?

There are a lot of variables here, but key risks are: water shorting electrical systems water being sucked into air intake (or potentially into exhaust) cold water coming into contact with hot metal ...
Rory Alsop's user avatar
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10 votes
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Do air filters purify air better with age?

I don't have any empirical evidence for this, but would say no for two reasons: An air filter will collect more dust, dirt, and debris until it gets so full that it starts pushing the older dust, ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
10 votes
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Cold Air Intake and Engine Wear

It will have no affect on the longevity of the engine or components as long as you get one with a decent filter on it. You'll have to check reviews on different elements to ensure you are getting one ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
9 votes

When is a cold air intake system beneficial?

The point is to feel like you've done something cool to your car and freed it from the shackles of The Man/the OEM intake. The primary benefit of Cold Air Intakes is to the bank account of the kit ...
squigbobble's user avatar
9 votes

Yamaha R1 intake tract configuration

The 'floating' intake runners are moved by a mechanism, coupling and decoupling them from the main intake runners to increase the overall length for better low RPM performance. This process was ...
Sam's user avatar
  • 1,708
9 votes

Do air filters purify air better with age?

It all depends on what you mean by getting better. It is possible that, as the very small holes in the filter that let air through start to trap particles, the places where air can get through will ...
HandyHowie's user avatar
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8 votes
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Yamaha R1 intake tract configuration

This is a variable-length intake Variable-length intakes increase the pressure of the air entering the intake manifold thanks to a physical phenomenon called Helmholtz resonance. It's also known as ...
Zaid's user avatar
  • 39.2k
8 votes

Why or why not increase engine efficiency by running the car "fuel-lean" (using a turbo or supercharger)?

Lean operation vs exhaust catalysts: The three-way catalytic converter fitted to gasoline vehicles can't operate under lean engine conditions because the reaction of NOx to nitrogen and oxygen is a ...
nekomatic's user avatar
  • 173
8 votes

Cold Air Intake and Engine Wear

Some people think that a cold air intake will generally improve engine performance, allowing fuel to combust at lower temperatures, increasing fuel efficiency. They believe the lower temperature is ...
Paul Dufresne's user avatar
8 votes
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What is this U shaped tube sticking off the intake hose?

It's a silencer. It's used on the intake tract to deaden the noise of the air as it goes through the intake. It usually isn't needed, but if taken off, you'll need to ensure the hole is completely ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
7 votes

Why or why not increase engine efficiency by running the car "fuel-lean" (using a turbo or supercharger)?

It's not that the catalytic converter can't handle more air per se, it's that running lean increases the temperature of combustion (I actually don't know why, but now I'm curious) and the catalytic ...
cdunn's user avatar
  • 9,316
7 votes

When is a cold air intake system beneficial?

It depends. Just because an intake can flow more air mass doesn't guarantee that the engine will utilize it. The intake is part of a system of components. The engine produces power by managing air ...
Zaid's user avatar
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7 votes
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How much horsepower to expect from a cold air intake in Dodge Ram

Would there be a substantial enough of a horsepower boost to be noticeable? The most you could see from such a modification is 15hp. This would not be enough for the seat dyno to register, unless ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
7 votes

Cold air intake causing rich condition

I agree with @JPhi1618 that it is related to the MAF sensor. From the picture you provided in your comment, it appears your (really good looking) MSR intake comes with its own MAF sensor housing. I ...
MooseLucifer's user avatar
  • 6,037
6 votes

Why do most mass-production motorcycles have their intakes facing backwards?

You guys are looking at it from the wrong angle... It’s not about the carb or the ram sur effect, it is all about the exhaust. The exhaust side of the cylinder is the hottest side so it needs to be ...
Simon's user avatar
  • 61
6 votes

Cold air intake causing rich condition

I believe that what @JPhi1618 stated is a major factor in your rich condition: Could the different air flow path cause issues for the MAF which would have been tuned specifically for the stock ...
EricF's user avatar
  • 161
6 votes

What would happen if i took the throttle plate off my 5.3L V8 engine?

No. Simply put, the throttle body is the physical device that controls engine speed. Thus the name "throttle body" because it throttles the engine. In essence, if you took the plate off, the engine ...
CharlieRB's user avatar
  • 9,025
5 votes
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Is it possible to extend the length of the shaft on an existing turbocharger, further distancing the compressor from the turbine?

A few things to consider if you end up doing this: A longer shaft will reduce the speed that you can safely spin the turbos up to It's got to do with something engineers call rotordynamics, although ...
Zaid's user avatar
  • 39.2k
5 votes

What is the difference between a MAP and a MAF sensor

Moves.. answer is a good one but you asked about advantages/disadvantages of MAF sensors. Disadvantages are: the sensor sits in the intake and thus restricts airflow. Airflow restrictions translate ...
timbo's user avatar
  • 1,186
5 votes
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Dirty air filter seal

If the prints are just on the seal, I wouldn't worry about it. You could possibly take some gentle cleaner (Windex or Formula 409 or the like which will clean grease) and make it pretty again. It won'...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes

What are the pros and cons of installing a high-performance air filter on a bike?

depends on if you have carburetors or fuel injection If you have a carburetor Cons You will make the bike have a lean condition Backfire on deceleration More oxygen will create more engine heat and ...
DucatiKiller's user avatar
  • 32.9k
5 votes

How do cars drive through deep water as shown on many videos online?

Later, they will sell the car to a sucker And that poor sucker will have constant electrical problems, which cost them thousands in attempted repairs, and ultimately lead to scrapping of the car. ...
Harper - Reinstate Monica's user avatar
5 votes
Accepted

How do I remove this bolt to replace my MAF sensor?

Just unscrew the nut from the other side and pull the bolt through, the shape of the bolt head is designed to fit into the plastic tabs which will keep the bolt from spinning. If the nut is frozen use ...
GdD's user avatar
  • 16.4k
4 votes

When is a cold air intake system beneficial?

Almost never? Mainly because they're really a 'hot air intake system'. This is especially true for cars using forced injection due to the high under-hood temperatures. If you want to reduce intake ...
David's user avatar
  • 41
4 votes
Accepted

Why Have More Than One IAC Type Device On an Engine?

The manual you linked to explains what they're used for. The AACV is the main idle speed control while the FICD is used to supply additional air to the engine when the AC is turned on. AACV (Page ...
Zaid's user avatar
  • 39.2k

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