Cuthroat

Theta brought up this interesting (to me) thought in another thread I have not been around a lot of the modern engines with straight piping, so any thoughts or experiences with straight pipes?

Higgs Boson

Why run straight pipes when X Pipes outflow them and mufflers don't reduce power? The industry has learned a thing or two since 1976.

Cuthroat

Well you could run the straight pipes after the x
or h pipe, to cover that. Still, I have never heard a muffled exhaust sound as good as an open exhaust through the rpm range. When your at the drags and the lanes fire up for the next group to run, it's a beautiful sound hearing those open exhaust fire up and idle and then scream down the drag strip. In my humble opinion.

Higgs Boson

Those cars do not have "straight pipes." They have what are more commonly referred to as "open headers" usually with a short extension depending on where they want their torque.

You cannot run around the street like that, you will be pulled over in 5 seconds not to mention **** off your neighbors and give yourself a headache before you make it to the highway.

Drag cars run for 20 seconds at a time. Oval track drivers wear earplugs.

And I do not think open headers sounds "good" as much as it is just loud. Ferraris, AMGs, hell even Mustangs with Flowmasters sound awesome. Open headers is pure function.

LT1xL82

What engines sound bad with straight pipes/open exhaust?

Electric.

Theta

Okay, now that's funny.

Theta

If you're dead-set on trying it, go right ahead.

You will a) create a resonance chamber out of your rear polycarb section (which incidentally has VERY little sound deadening) which will cause so much drone, you won't even want to drive it home, and b) be pulled over with 5-10 minutes.

I've had my share of straight-piped / dumped exhausts, and still do. I urge you to use a cutout setup that can be opened and closed at will - it is a far more sensible (read: adult) solution in this day and age.

MitchAlsup

Essentailly all of them, with the possible exception of Top Fuelers.

Cuthroat

Wow Mitch really? pro stockers, super stockers, etc, sound bad with open exhaust? My friend has a 2008 Chevy pickup V8 and he experimented with a straight pipe after the converter and you could hardly hear it from the cab at cruise, but when you got on it, it sounded like a race truck! That was from a number of different people, they loved it. I think to each their own, but many people on this forum complain that their exhaust isn't loud enough even with the npp style systems, aftermarket or stock. I have heard many vehicles that didn't sound good with many different exhaust systems.

4GS7

Engines that sound good with straight pipes? Engines in the off topic section. This has nothing to do with C7 tech.

Mike Mercury

and... there is an "Other Cars" section as well.

Cuthroat

Sorry for posting in the wrong area.

brokenparts

I could keep going...

Higgs Boson

why? we already know race cars are loud. I have one that sounds just like those. loud isn't the same as sounds good.

to think it would be cool to drive that around town or through your neighborhood is ludicrous unless your neighborhood is comprised of double wides.

not to mention just opening an exhaust system will not make it sounds like a dedicated race car......there is a huge gap in understanding here, please move this thread to the kids table.

brokenparts

Gap in understanding? Yea, all those cars are just exhaust mods... The man asked what engines sound good so I gave a few examples.

Higgs Boson

just exhaust mods? no, they are 427 stroker motors with big cams and are built for the racetrack. they are not street cars. and his question was what cars sound bad, not good.....

opening up the exhaust like that on a street car serves no purpose but public nuisance.



we have an infestation of squirrels around here lately.....which mod is in charge of pest control?

Motohead279

I love a good loud deep sound but I have to agree that straight pipes on a streetcar is nothing but annoying.

C7pimp

Know what's perfect for me?

The NPP.

I can run a 600whp car with quiet exhaust and appreciate the sound of a blower and fly like a rocket. Or press a button and make it scream and do the same.



I took the mufflers off my mustang and drove around a couple days with the car extremely loud. It was fun for all of 2 minutes before it became really annoying. Then I put the new mufflers on with a mildly aggressive tone and it sounded perfect.


Very loud exhaust is annoying to listen to everywhere you go. Don't do it for a street car.

Cuthroat

I am sorry. I don't know how to move this to another section. Can a mod do that?

Also, I understand that running around with straight pipes terrorizing the good citizens of Gotham City is not good. But any gear head worth their salt has done it at sometime in his/her life.

What is needed is an idea where you can have both pure open pipe and legal pipe all in the same system without it sounding like a controlled exhaust leak. Lastly, while not condoning the freeway runs, that silver street vette in the above video sounds purely magical and i doubt anyone would disagree...

Higgs Boson

The NPP exhaust gives you that, all you need to do is add headers and remove the catalytic converters. There is also the Mild to Wild system as well as traditional exhaust cutouts. People have used these systems since the 1980s....maybe before.

The closest I ever got to running open exhaust on the street was when I was 16, I unbolted the exhaust behind the manifold on my Cavalier in the driveway. It took all over 1.3 seconds for my mother to come out and silence the noise.....for good.