How does cams make perfomance???

[96TalonAWD]

i know they are expensive? thats why i will like to know which should i spen like over 300 bucks on them?

 

[Quacylla]

More air.

 

[~97TalonTSi~]

In general, upgraded cams allow the valves to stay open for a longer period of time allowing more air flow which means more hp. There are many different grinds to choose from so I would do some researching before buying because you don't want to run into clearance problems, severe idle and fuel problems. I personally have Webcams street grind and I have no problems and notice a gain in power that was worth the price, well maybe not for the price

 

[96TalonAWD]

whats wrong with the stock ones? and how do aftermarket cams stay open longer? I mean the cams are rotate it by the sprockets which makes the timing if they are to stay up longer it will be from altering the ECU or the ignition timing?


I dunno i am just a rice boy but BRING IT? jaja

 

[Tevenor]

On a cam there are lobes. These lobes are what dictate how long and when the valves open. If you change these lobe configurations, you can change the amount of air and when the air gets to the cylinder.

 

[Quacylla]

What he said.

Time to educate yourself a bit: http://www.howstuffworks.com/engine.htm

http://www.howstuffworks.com/engine4.htm

http://www.howstuffworks.com/camshaft.htm

 

[Enigma_Man]

There's nothing "wrong" with the stock cams. They're just more oriented towards fuel-economy, and general driveability than probably most aftermarket cams.

From what I understand you probably wouldn't see much of a difference with cams unless you're running a bigger turbo. But I don't have any personal experience to back that up.

-Jesse

 

[96TalonAWD]

hey quacylla thanks for the site? i like the graphivcs

 

[~97TalonTSi~]

Originally posted by 96TalonAWD
whats wrong with the stock ones? and how do aftermarket cams stay open longer? I mean the cams are rotate it by the sprockets which makes the timing if they are to stay up longer it will be from altering the ECU or the ignition timing?


I dunno i am just a rice boy but BRING IT? jaja

No its not from altering the ECU or ignition timing. The cams are designed differently. I'm sure you have seen a cam before...the lobes of the cam, the egg shaped parts, are what operates the valves on the valvetrain. When talking about the spec of a cam you have valve lift and duration. The design of the lobes determines how far they open (lift) and how long they stay open (duration). So...they stay open longer because of the design of the lobe of the cam.

The timing you are talking about from the sprockets is not ignition timing, its cam timing. That can be advanced or retarded only with ajustable cam gears which is not entirely necessary although can be helpful.

 

[96TalonAWD]

ok i see what you talking about. i saw the little animation from the website jejeje. but i have read that you dont actually get to much HP from cams and you cant get them to big cause clearance?

 

[Tevenor]

Originally posted by 96TalonAWD
ok i see what you talking about. i saw the little animation from the website jejeje. but i have read that you dont actually get to much HP from cams and you cant get them to big cause clearance?

Your engine is nothing more than a giant air pump. The cams open the door for lots of air, but if you don't have a turbo big enough to take advantage you won't see as much of a gain than someone else. This is called 'ENGINE TUNING' and it seems to assumed to be easy. It isn't. Throwing parts at an engine is no way to 'tune' it. Each part affects others and this needs to be considered before buying anything.

 

[~97TalonTSi~]

Originally posted by 96TalonAWD
ok i see what you talking about. i saw the little animation from the website jejeje. but i have read that you dont actually get to much HP from cams and you cant get them to big cause clearance?

What Tevenor said...and he's a wise man Once you get an understanding of how an entire engine works, the direction of airflow and the ultimate importance of the air/fuel mixture, you can start thinking of modifying it. The factory gives us this perfectly and if you don't alter it perfectly as well, you won't get very far. If you upgrade cams, you must upgrade everything else to see the maximum performance from them.

My suggestion to you is, start with the bolt on mods in the right order, learn everything you can and then think about cams and valves and springs and...