3 Illegal Mods That Will Make Your Car Run Better

Rev up

your

engines people have always been modifying their cars some of these modifications are legal in some state

illegal

and others now the first modification has to do with removing the mufflers from a car now when the engine is running it burns gasoline the exhaust comes out The exhaust manifold goes down the pipes at the back of the car, then it goes through the catalytic converter where the hydrocarbons are burned, then it goes down through the muffler and in my own silica is the muffler here, it's right on the rear, that is the original muffler. on this car it is also surprising, as with most car parts, the muffler is named after what it does: it muffles sounds, the loud noise of the engine explosions passes through several baffles that it hits, which silences it and then it comes out the back, but mufflers, in addition to muffling sound, also create some back pressure, some resistance to the exhaust gases flowing freely so that

your

engine can inhale and exhale as quickly as possible.

Keep in mind that basically your car's engine is a giant air pump that is sucking in all the air it can and is pumping out the burned gases as quickly as possible so that it is more efficient, runs faster and runs

better

, up to a certain point. , a muffler reduces the power of your vehicle, that's why you don't see mufflers on racing cars and of course that's why racing cars

make

so much noise now used to be all piston airplanes, they didn't have them either. silencers. That's why when you hear them flying overhead you may hear poorly, in Europe they have now set very strict noise regulations for small planes. with propellers and they are even starting to have small mufflers that have less baffles, they reduce the noise a bit but they also reduce the power, so if you remove the muffler you

will

have a more free flowing engine exhaust which means it can suck in air y It is best to burn it and dispose of the waste gas as efficiently as possible, but by doing so you are often breaking the law, but the law is different in every state, for example, in California a vehicle cannot produce more than 95 decibels in the air.

New York State. The limit is 15 decibels. You could legally have louder cars in California than in New York State, while here in Texas there is no real decibel limit. It only says that your vehicle cannot

make

excessive or unusual noises. These things are open. There is what is excessive and certainly what is unusual. I guess you can't have a car that honks like a goose, but that leaves a lot of parameters. I hear a lot of loud cars around here, no one seems to bother them and I've seen that lately. a lot of very loud ferraris and porsches in my neighborhood are getting yupified, a lot of them are backfiring because they don't have them tuned right and they rub them too loud and they are shifting gears and they backfire, a car shouldn't backfire if you remove a muffler of your vehicle, you need to make sure it is tuned and working perfectly, because if not, you

will

get a lot of backfires, the muffler will also slow down some backfires.

That is to say, if you have a large gas leak inside the fuel injectors and you are dumping raw fuel into the exhaust, it will also be counterproductive, but an engine that is running normally if it is not set up perfectly without a muffler, it has a tendency to be counterproductive more. . So if you just remove a muffler and your car isn't set up correctly for that flow, it may not run properly and of course since it's

illegal

in most places due to the noise it will make, everyone will make too much of it. noise on a normal gasoline engine, they make a lot of noise if you remove the muffler.

The whole system is based on oxygen sensors, catalytic converters and if you remove the muffler you will have a higher flow and that can often affect the software and the readings of the oxygen sensors and the operation of the catalytic converter because the catalytic converter in It actually has to store little oxygen inside to burn the hydrocarbons and if it flows too fast it can't store anything and it won't work properly. Then you would be breaking pollution laws. In the past you had people tell you: Hey Scott, you have to have a bun in your car because you need that back pressure if you drive a four-stroke engine that isn't a four-stroke.

It's true that you don't need back pressure, they aren't made to need back pressure, but speaking of that, back in the day when I was a young mechanic, there were a lot of two-stroke motorcycles and there weren't even two-stroke cars. like the saab sonnet which was a strange two stroke v4 engine that the swedes made now because of the difference between a two stroke engine and a four stroke engine these two stroke engines really need a certain type of pressure in their system exhaust in Motorcycles are called expansion chambers. If you look at one of those old two-stroke motorcycles from the '60s or early '70s, you'll see that they have these big expansion chambers in the exhaust that created a certain amount of pressure to make it really race.

The engine could work well because two stroke engines are completely different, they do not have the four strokes of the intake compression ignition exhaust, there are only two and their gasoline is mixed in the engine while it runs, that is one of the reasons why those that pollute much more. but with those, you remove the exhaust system from a two stroke motorcycle engine, it will run like shit, but that has absolutely no relation to a modern four stroke car, remove the muffler, yes you can make it faster, tune it . true, but you'd be breaking all kinds of laws and here in the United States, especially, you'd be breaking federal pollution laws because if you did it and someone tested it on a machine, they'd probably find out that it's creating more pollution than it should. because getting rid of that back pressure changed the way the anti-pollution system works, so now, in theory, catalytic converters can last forever.

They are called catalytic converters because they have a catalyst. It is often platinum, exotic metals that will burn hydrocarbons, so none. Some of it goes out the exhaust at the back of your car and as long as the catalytic converter is built correctly and your engine doesn't spew out burnt oil and burnt coolant to clog everything up, they can actually last forever, that's the point of a catalyst, but of course that's in a perfect world, we don't live in a perfect world that's for sure, that's how they break down and how you can tell if it's broken before you spend money on one and it doesn't fix your problem now , one way to know for sure it's bad is if they start to vibrate, you can hear this rattling when it's running low, especially, you can hear it rattling.

Most likely the inside is broken like this, when you look inside you can see the substrate inside. It's broken, there's the honeycomb, the platinum inside, that it's supposed to be, for the air to flow and when it breaks and they fall apart, you know they're broken now, unless you try hard always hitting speed bumps and hitting the exhaust system which is usually a manufacturing defect, they didn't build them right in the first place years ago, that was a notorious problem with a lot of Volvos that have the converter making noise lately, on many minis you get converters that make noise and you know they're running bad they shouldn't be making any noise now I've had customers driving for years when they're just rattling, if they're just rattling and you don't get the inefficient catalytic converter code and the check engine light comes on sometimes you can drive them for years.

That way, if you don't mind the noise, but in the case of this Lexus catalytic converter, you can see that the inside is broken and when it moves sideways, the air can't flow properly, it's supposed to flow to through the little honeycomb holes on the inside, but when it goes to the side it blocks the flow of the exhaust coming out the back and when that's the case you generally have two problems, if it blocks the flow of the exhaust, put your hand on the exhaust and you will see that almost nothing comes out that is going to Make your car only be able to go a certain speed because your car has to suck air in the front and then blow the exhaust out the back and if it is sucking but it can't eject, guess what only the motor can go to. a certain speed and that muffled exhaust will make it go slower many times you will have a car that can only go 45 to 50 miles per hour and not faster or in extreme cases when they are really clogged.

I've seen them where they wouldn't go 20 miles per hour, now any mechanic worth their salt can easily try it. We only have gauges and you can take out the oxygen sensor in front of the catalytic converter and if you find out it has five six. seven eight or more pounds per square inch of pressure, that means something is increasing the pressure before the catalytic converter. You know that if a jack is clogged, the pressure in front of it will increase too much, normally it shouldn't be more than maybe a pound. pound and a half at most, you have five six seven eight pounds or more that are clogged, but sometimes the solution is worse than that because I have seen it in the case of the Lexus that I just showed you recently, the catalytic converter was defective, but It broke and pieces broke off and also clogged the muffler, so it also had to be replaced soon.

There's just one problem I had years ago from my dad, when I was a teenager, I learned how to work on cars, he said, don't tell. Someone you can fix their floor in five minutes because, hey, maybe they have a nail, so you can fix it in five minutes. What if it has two or three nails? You know it's going to take a lot longer. You always have to check everything so just because one part is bad doesn't mean that in the future there won't be other parts that are bad and today of course it's going to be more complicated because some of the cars have a built in catalytic converter in the exhaust manifold which costs a fortune and that is the first catalytic converter and then there is another one further down the line so it is possible that more than one will go bad.

I even had a car that had the front catalytic converter go bad, the mid catalytic converter go bad, and the muffler clog up. one at a time, that was an expensive repair now many worse mechanics will see a code on a scan tool that says inefficient catalytic converter they will immediately say well you need a new catalytic converter but that's not always the case, it can be inefficient for many reasons, You could have a bad oxygen sensor either before or after the cat, if given bad information it will say cat bed when the cat is good and of course the sensors cost much less than the entire catalytic converter.

You could have an engine that has something as simple as a vacuum leak, the vacuum lick sucks in air and causes the car to run lean, so if the oxygen sensors see lean all the time they might think the catalytic converter has gone bad. spoiled, but it has nothing to do with that. Over the years I have seen dozens of people who paid for expensive catalytic converters and it didn't fix their problem. Yes, they can break down, but they should be thoroughly tested before you just slap on one of those expensive catalytic converters and when the time comes.

To the converters themselves, of course people want to save money when they buy them, but sometimes aftermarket converters don't work on a particular vehicle, but they don't work properly with that car's anti-pollution system and sensors. and they will still trigger codes even though they are new when they are there now which from what I see has to do with cheap, I have seen catalytic converters, the factory ones, that were very big and thick, and the replacements are small things , well, of course, inside they will have less strata for air to pass through when the exhaust passes and less platinum are metals that they use to burn hydrocarbons, so of course they are not going to work.

So efficiently, one company that I find to be extremely sensitive to this is the latest model of Infinity, they often have faulty catalytic converters and I have customers that went out and bought replacement ones online and I put them in, they fit perfectly well, but originally I had one layer of inefficient catalytic converter 150 160,000 miles so yeah I can see that especially on an oil burning engine when I put those aftermarket ones in they were still the same code they were smaller and cheaper they didn't work on the infinite case, I tell people you have to buy the OEM cats, there's no way around it, so basically how do you keep your cats from going bad?

Well don't do stupid things like this, it's spray silicone, never spray this around the air intake because if the silicone gets on. Sucked into the engine and burned, silicone can ruin oxygen sensors and converters.catalytic, some guys even make silicone gaskets in the intakes and the vapors inhaled can also ruin them. You don't want to use silicone spray. and you don't want to use any type of self-sealing silicone gasket manufacturer on anything in the intake where it will be sucked into the engine and you want to take care of your engine, change the oil regularly, change the coolant regularly because if you have an engine that burns oil or coolant, the after effects of burning them can clog the catalytic converter, it takes time but it will, and especially burning oil, the cars I see don't pass an emissions test and someone puts in a jack. and then the next year they failed again but they passed in the middle it was often because the engines burned out and when the engine burned oil the burned oil would cover the catalytic converter and then it would no longer work now if you have a Cadillac inverter that is starting to fail sometimes the cleaners work there are things like cataclyne a lot of chemicals that people sell but from my own personal experience I use this lacquer thinner that auto paint stores sell and you put a gallon of that for every five to ten gallons of gasoline in your car, it is best to do so with at least nine gallons of gasoline in your tank. because then you have about a ten percent ratio of cleaner to gasoline and really, when you think about it, the gasoline that you're buying at a pump already has well, they changed the loss, so now it has like 15 or more ethanol, so that's not like it's going to damage anything anytime soon some people complain other people say oh great it worked for me and yes it can work but realize it's a cleaning solution if there's too much dirt nothing's going to Cleaning that dirt rather than replacing the Catalytic Converter, let's say you have a car that doesn't go over 15 miles per hour because it's clogged.

A cleaner will fix that. I've never seen a cleaner fix a car like that, but I've seen a cleaner fix hundreds of cars that had an inefficient catalytic converter layer, used a gallon to 9 gallons of gas in the gas tank, drove it until it was almost empty. They would run out of gas and then when they took it and tested it, it passed the test and the light wouldn't come on. Leaving them on when they start to get cleaner can work and if you are really interested in doing serious work on your car, a guy who sold catalytic converters told me this, he showed me that if you take the catalytic converter off, soak it in soap. water overnight which loosens everything up then you dry it with compressed air and put it back in that actually works

better

but a lot of catalytic converters are welded on like I said some of them are in the exhaust manifolds so Cleaning them mechanically is almost an impossible thing to do, but that actually works better.

Crazy enough to soak them with soap and water can break up a lot of the dirt from those little holes and then they work again. Now people always ask me, Scotty, what exactly does a catalytic converter do in your car, what purpose does it serve? Well, it only has one purpose and that is to burn and burn hydrocarbons to reduce pollution. Any car that doesn't have a catalytic converter is going to run a little bit better than one that does because it's kind of a restriction and it heats things up because the way it burns unburned hydrocarbons is by getting really hot, so if you remove one from a car Of course it will work better but it is against federal law to do so you are breaking federal law if you decide to remove the catalytic converter from your car and if you buy the right car with a solidly built jack and maintain it like my Celica 94, still has the original 25 year old catalytic converter so they can last a long time if you maintain them and buy the right car that said don't endlessly buy a nissan a mini because they are famous for not even being built well in the first place and are They break down as they age and are very expensive to repair, especially the now otherwise legal and illegal mini to use nitrous oxide to increase the power of an engine.

There are all kinds of nitrous settings. There are wet configurations where wet comes in mixed with the fuel. There are other dry ones where he enters alone, but basically. They are all made to increase the power of your engine. You can make a small four-cylinder engine produce 40 or 50 more horsepower. You get an old V8 engine. Yes, you can end up adding hundreds of horsepower to it. Its legality is kind. in no man's land, depending on where you live, I have friends in Australia, they said in New South Wales it is totally illegal, you can't have a nitrous oxide system in your car to drive on the street, we are in Britain, there is no restrictions to use them. nitrous oxide systems other than you, you have to tell your insurance company that they are going to increase your insurance rates because they know it is making you a faster car, where in south carolina united states you can legally have a nitrous oxide system. your vehicle but you can't have the tank open to use the system while driving on the street, they have it so you can have it in your car and you can take your car to a race track and do it or go to a dirt road and do it , but on the legal streets you drive on you can't open the tank and since if the tanks are closed it doesn't generate any boost, you're not boosting anything, which of course leads to the guys hiding the tanks. and hide the entire system so no one can see it, but in the state of Nebraska it is completely legal, you can have it on a streetcar and if you get stopped for speeding, you will get a speeding ticket, but they will not give you an additional ticket . by having a nitrous oxide system hooked up to the car i mean nitrous oxide works it is used as an oxidizer and as a rocket engine so i mean this works of course there is only a limited amount you can have no It lasts so long, but when you open it up and inject it into the system now, of course, in the long run it will have detrimental effects on your engine.

When I was young, a lot of guys put them on and they were always blowing their engines, they blow the head gasket. sometimes they even blow up the heads, every engine is designed to accept a certain amount of power and if you go over that limit it will blow up, this is how they work the last

mods

I'm going to talk about may be illegal but they can really make your vehicle go faster by using larger, higher flow fuel injectors in your engine, the fuel injectors in your car, all four here are designed to get the maximum amount of fuel economy and power for a certain size engine, so if you fit fuel injectors that have a higher flow now you will probably have to fit a larger fuel pump as well to pump out the extra fuel, you can get more fuel into the engine faster and it can increase the power it produces.

Now, the main reason this would be illegal is because it will drastically change the pollution coming out of the tailpipe, unless you have a complete professional who knows how to reprogram your computer and configure it so that it doesn't pollute more if you put it on. Put in bigger injectors and set the car to run those bigger injectors and of course you'll get a worse gas mod because you're pumping more fuel in, but if you really wanted to do something like that, they make multiple injectors for multiple cars and you'd have to find a mechanic or if you are a real computer whiz and know how to program them and understand air fuel ratios you could try reprogramming your computer to accept these new injectors now if I have a regular car out there like a Mustang or a Camaro or a Dodge Charger.

There are a lot of guys who do that kind of thing. You can go online and see their advice telling you what to do and I know this with my old win. The motorcycle also has fuel injection. There's a British site where the guy gives all the information for free. Simply connect the support tool. He gives you information on how you need to reprogram certain aspects of the computer software to get those larger injectors working and that's it. Wow, there are a lot of guys out there who like speed. I love sharing their information with everyone else, but then I realize these guys are going for speed.

A lot of times you do something like that, it won't pass any smog test, for example on my Triumph Motorcycle here in Texas they don't test motorcycles for smog when they are inspected every year, so it's not like you have to worry about them going to do an emissions test because here in Texas they don't test motorcycles for emissions, so ultimately if you're going to do any of these modifications you want to check your local laws and see how things work in your area, but if you find out that a certain thing is legal in your area or it is not illegal, go ahead and just realize the saying.

Speed ​​is just a matter of money, how fast do you want to go? So if you never want to miss another one of my new car repair videos, remember to ring the bell.