Straight piped
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Straight piped
I was wondering, I was going to take my stock exhaust off to replace it with a flows. I was going to take off the cat and muffler and was wondering would it hurt the truck at all to run it with no cat and muffler for a little bit just to see what it sounds like? Curiosity killed the cat to many times. Thanks, john.
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Originally Posted by johndo
I was wondering, I was going to take my stock exhaust off to replace it with a flows. I was going to take off the cat and muffler and was wondering would it hurt the truck at all to run it with no cat and muffler for a little bit just to see what it sounds like? Curiosity killed the cat to many times. Thanks, john.
Need some more info on your truck.. Mostly just the engine, also the miles, and state you live in, also perhaps you driving habits..
Best of Luck,
Corey
*Parts Changers*
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Your absolutely right, I completely forgot the truck specs, my fault. I have a 2001 F250 reg cab, 8ft bed with a 5.4L Triton, its 4x4 and I live in Maryland. I am pretty light on the gas most of the time, but can get on it now and then.
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From: IOWA
Originally Posted by 01f350
It won't hurt your truck, but many peolpe say that an engine needs back pressure to run properly and not having a muffler eliminates all back pressure.
It will definitely be LOUD.
It will definitely be LOUD.
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From: NJ ... the garbage state
yea ... nascar definatly has pipes, you'll notice the two of them exiting same side, passenger side, right where the back of the door would be. tuning the size of those pipes is used to attain peak horspower. you are also talking about a car that runs at maximum rpm (8,000 plus) for a few hours straight, torque down low isnt really necesary like when you drive anything on the street.
you dont need an excess of backpressure, what you need is a flow, to big an exhaust and you loose that flow. a constant smooth flow of exhaust will create a suction to scavage exhuast gases from each cylinder as is opens up for expulsion of exhaust gas. too much backpressure, and the engine has to work to force this exhaust out (hence the power gains of a high flow exhaust), too little flow ... aka 6 inch exhaust on a 4 cylinder, and you could cap it off for a while and it wouldnt make a difference, there is no flow velocity.
in summary, that exhaust velocity creates the smooth constant flow which promotes the most power, the size of the exhaust will affect at what rpm your peak gains are.
you dont need an excess of backpressure, what you need is a flow, to big an exhaust and you loose that flow. a constant smooth flow of exhaust will create a suction to scavage exhuast gases from each cylinder as is opens up for expulsion of exhaust gas. too much backpressure, and the engine has to work to force this exhaust out (hence the power gains of a high flow exhaust), too little flow ... aka 6 inch exhaust on a 4 cylinder, and you could cap it off for a while and it wouldnt make a difference, there is no flow velocity.
in summary, that exhaust velocity creates the smooth constant flow which promotes the most power, the size of the exhaust will affect at what rpm your peak gains are.
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From: Kiln, MS.
I've got an 01 5.4L CC LB 4X4 250 and I'm running 2" dauls from the sensers back with large flows & 18" tips. NO CATS! The first 3 days with the new pipes it had some little nothing flows and I cuoldn't stand the noise. Couldn't talk on my cell!
Look at the Y pipe . It is Cremped down to about an inch. Thats why I did it. Picked up about 2 MPG. & it looks good!
Look at the Y pipe . It is Cremped down to about an inch. Thats why I did it. Picked up about 2 MPG. & it looks good!