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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
  • 3,018
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
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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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
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
  • 9,015
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

Calculating engine air intake per minute

No, it is not correct. This is because you don't have (or aren't giving) enough information. One bit of information you don't have is: What is the volumetric efficiency of the engine? Volumetric ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
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
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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
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5 votes
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Calculating engine air intake per minute

The way you're attacking the problem will be extremely difficult to pull off, because there are quite a few variables, and you need to chart them in real time. You'll need a multi-channel data logger....
Harper - Reinstate Monica's user avatar
4 votes
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What else should I inspect after repairing hole in intake hose?

It's impossible to figure the damage from a little bit of unfiltered air, not knowing how long this has been going on. The "good" news is there is little if anything you can do about it. Replace ...
SteveRacer's user avatar
  • 12.4k
4 votes

What do hood scoops do to prevent water being ingested in to the air intake system?

The way manufacturers get around the problem of the wet is usually through creating a dead zone where the water will fall out of suspension, then the water is collected and allowed to drain through a ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes
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Calculating fuel flow rate through obd || sensor not supporting 015E and 0110 commands

I figured out that the formula stated in the paper for fuel flow below: fuelFlow = (MAF * 3600) / (14.7f * 820) ; // l/h is off by a single 0(needs an extra 0 added to the right of decimal).So we ...
With A SpiRIT's user avatar
4 votes
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How to repair this (PCV?) tube?

If you are in dire need for a replacement on the cheap, either way you suggested would work just fine. In fact, if you used fuel line (or any other rubber based line which fits over the hard plastic), ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes

Could taking coolant through the intake filter realistically cause permanent inability to start?

Can coolant actually make it through an air filter? The answer to this is "yes". The bigger question is, though, how would it get there and where did it come from? If you have the stock intake on ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
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Could taking coolant through the intake filter realistically cause permanent inability to start?

If sufficient amounts of coolant made it into the intake, it's possible for the engine to be hydrolocked. While air can be compressed by the cylinders in the engine, water cannot be compressed. So ...
Ives's user avatar
  • 700
3 votes

2012 Mitsubishi Galant SE

Be careful with such things unless you are going to do ECU tuning to match. A number of aftermarket CAI units are nothing but snake oil to make an engine run lean, increasing power at the expense of ...
SteveRacer's user avatar
  • 12.4k
3 votes

ITBs with a charged engine

At high RPM and wide open throttle, there is no significant differences between either one. Here a single throttle body might have a slight advantage since you have less turbulence in the intake ...
Netduke's user avatar
  • 425
3 votes
Accepted

ITBs with a charged engine

Yes there is a large benefit of response and efficiency and if not for the cost would likely be seen in more factory equipped vehicles other then the high performance production models (like BMW M3). ...
spicetraders's user avatar
  • 1,533
3 votes

Calculating fuel flow rate through obd || sensor not supporting 015E and 0110 commands

I used above formulas to create below gnuplot helper functions vol_eff = 0.8322 f_time(x) = x/1000 f_rpm_to_rps(x) = x/60 f_mbar_to_kpa(x) = x / 1000 * 100 f_celcius_to_kelvin(x) = x + 273.15 f_imap(...
Jaakko's user avatar
  • 131
3 votes
Accepted

What is the black box between my air filter housing and throttle body?

It's basically a tuned box that serves to reduce intake noise. Think of it as a muffler for the intake.
jwh20's user avatar
  • 12.1k
3 votes

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

Try some penetrant fluid (PB blaster or something else), let it soak for a while. Then hold the round head with some pliers and try to remove the nut. Depending on your luck (and skill) it might be ...
Martin's user avatar
  • 8,468
2 votes

KTM Duke 200, Broken Airbox

If you think you can seal the box dust proof by glue, go right ahead and do that. I've had mine broke two years back and applied silicon sealant. Just that it's a bit tough later on when you're ...
Arun's user avatar
  • 27
2 votes

2012 Mitsubishi Galant SE

Both the Galant and the Eclipse had the same 2 engines available for each other. The air intakes should be interchangeable from 2006 to 2012, as long as it's for the same engine you have (the 2.4L 4 ...
tlhIngan's user avatar
  • 12.2k
2 votes

Is this a right MAF signal?

The MAF should be fine Have a look at this datasheet for the HFM5 series Bosch MAF. It is for a 5-pin MAF (it also measures intake air temperatures) so it's not exactly what you're after, but remains ...
Zaid's user avatar
  • 39.2k
2 votes

Effect of smoke ingestion on fuel injected car engine?

TD DR: You nailed it. For the amount of CO2 (and/or CO), think about a running car in a garage. If a person is trying to commit suicide, the driver will be dead long before the car quits running due ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes
Accepted

What to use to seal airbox gaps

If I were you, I'd use some 150-200 grit sandpaper on the two edges you are trying to seal. This will give the area a good bonding area to work on. You'd then need to clean the two halves of the air ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes
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Precautions before changing air filter

1 clean around filter box 2 open filter box and remove old filter - dispose of it correctly 3 clean inside the filter box as necessary and fit cleaned or new filter 4 close filter box - make sure ...
Solar Mike's user avatar
  • 34.7k
2 votes

What do hood scoops do to prevent water being ingested in to the air intake system?

Water intake from rain will be minimal, unless it is a monsoon. The water will hit the back of the ducting and end up on the sides of the ducting. Swirling air will push some of the water along the ...
CharlieRB's user avatar
  • 9,015

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