Has anyone ever taken the headers off their car. . .

"YSI-what can brown do for you" (ysi-what-can-brown-do-for-you)
10/29/2013 at 22:48 • Filed to: None

And then started the engine up? What did it sound like, and did you go deaf?

DISCUSSION (37)

offroadkarter > YSI-what can brown do for you
10/29/2013 at 22:50

Running with literally nothing bolted to the heads? No

Open exhaust manifolds? Yes, this was years ago, I was swapping in a set of midpipes with 2 of the 4 cats deleted.

I wish I had one from my LT header install, but that would have been to annoying to do.

Birddog > YSI-what can brown do for you
10/29/2013 at 22:56

WHAT? YOU NEED TO SPEAK UP!

I'm kidding. Kinda.
I did it once on a Big Block Chevy. It was not pleasant.
Long term exposure to open headers has a similar effect and is part of the reason I can only hear out of one ear.

YSI-what can brown do for you > offroadkarter
10/29/2013 at 22:56

I hear you laughing. I have only done this with no resonators or mufflers when I was changing out the catback. I will be getting headers soon, and I am going to see what happens then. . .

Benzed92 > YSI-what can brown do for you
10/29/2013 at 22:57

Open downpipe, yes. This one was stock

And this one was a 3" catless downpipe, which was near painful in and out car when the wastegate opened up.

YSI-what can brown do for you > Benzed92
10/29/2013 at 23:03

They hear me spoolin'

They hatin'

hike > YSI-what can brown do for you
10/29/2013 at 23:04

I've never ran an engine without headers but I've ran a couple with the exhaust disconnected from the manifold and I ran a 7.3 powerstroke with the exhaust removed at the turbo. What a noise that made!

YSI-what can brown do for you > Birddog
10/29/2013 at 23:06

I guess that is something to keep in mind. I probably won't do it for more than a minute.

themanwithsauce - has as many vehicles as job titles > YSI-what can brown do for you
10/29/2013 at 23:09

I once had nothing in front of the intake on a supercharged car and it sounded like a jet engine was taking off when I revved the throttle

MtrRider Just Wants Doritos > Birddog
10/29/2013 at 23:11

Yeah but that other ear is hearing some glorious shit I bet.

YSI-what can brown do for you > hike
10/29/2013 at 23:16

Diesel?

offroadkarter > YSI-what can brown do for you
10/29/2013 at 23:19

the camera doesn't portray how loud that actually was

I have to wonder how loud this was, compared to my current exhaust though.... to bad I don't own a dB meter, we tried the dB meter app on my friends iphone and my current exhaust maxed it out at 105 dB, I know its louder than that, 90 is the legal limit.

Delta Five Nine > YSI-what can brown do for you
10/29/2013 at 23:22

Does a CBR600RR in a FSAE car count? It sounded like loud. And gloriousness. Like this, but twice as loud and indoors. Not to loud at idle, but holy hell does it scream with revs.

gmctavish needs more space > YSI-what can brown do for you
10/29/2013 at 23:29

No video, but we had a shitbox mk1 VW cab to play with when I was in high school, and we ran it for a bit with open equal-length headers and intermittent ignition on two cylinders. It sounded like two harleys strapped together. Mmm shop class.....

YSI-what can brown do for you > Delta Five Nine
10/29/2013 at 23:39

I always loved the way high revving bike engines sound, I can't imagine no header version.

YSI-what can brown do for you > gmctavish needs more space
10/29/2013 at 23:40

I wish I had a crappy car, so I can do stuff like this.

YSI-what can brown do for you > offroadkarter
10/29/2013 at 23:41

Jeeez, I think mine while be 100 dB at WOT(max), other than that it hopefully shouldn't be obnoxious. 4 cylinders start to get raspy when they start to get too loud.

Ramblin Rover - The Vivisector of Solihull > themanwithsauce - has as many vehicles as job titles
10/29/2013 at 23:47

This bodes well for my ITB project. Though unsupercharged, hoping to have some righteous suction noise.

gmctavish needs more space > YSI-what can brown do for you
10/29/2013 at 23:48

I do too, My Volvo is too original to do anything to. Oh and I guess I do have another example of the same thing...I was driving my dad's 2005 Taurus wagon and the exhaust fell off at the flex pipe. I've never enjoyed a rev-unhappy V6 so much.

themanwithsauce - has as many vehicles as job titles > Ramblin Rover - The Vivisector of Solihull
10/29/2013 at 23:54

It will sound like a broken vacuum. Supercharger whine comes from those damn rotors spinning fast enough to enter red shift. It was a riviera with the M62 eaton meant for the quick spool up so DAMN those things spun up fast.

Jeff-God-of-Biscuits > Delta Five Nine
10/29/2013 at 23:57

Actually, you need to hear an early VFR (90-94) running with the muffler removed. Oh my sweet glory! It sounds half NASCAR, half power boat, and half Formula One. Gear drive cams, sooo wonderful.

Ramblin Rover - The Vivisector of Solihull > themanwithsauce - has as many vehicles as job titles
10/30/2013 at 00:01

Broken vacuum was somewhat what I had in mind - eight stacks open to atmosphere when not wearing mini-filter hats. I'm just hoping I quell the exhaust enough I can hear both adequately.

Eatons rock. Given the choice, I'm very much a supers>turbos guy.

themanwithsauce - has as many vehicles as job titles > Ramblin Rover - The Vivisector of Solihull
10/30/2013 at 00:11

The insta-torque from those things is epic. From a dead stop, the 2 ton riv was a bit slow. But a 15 mph roll? With the extra tall first gear on those things? I had no issues keeping up with a G35 and a Mk5 GTI. It made an excellent camera car on woodward.

Clearly, you need a supercharger on your integra.

Ramblin Rover - The Vivisector of Solihull > themanwithsauce - has as many vehicles as job titles
10/30/2013 at 00:47

First I would need an integra - no mention of Integras was made, but a supered Integra would be rad. The ITB (independent throttle body) project I mention is taking 8 Honda CBR600 throttle bodies and putting them on a Rover V8... which is basically a Buick.

There's also a case to be made for importing an Aussie Falcon XB and installing a super with an electric clutch and a bypass, because Road Warrior.

Satoshi "Zipang" Katsura > YSI-what can brown do for you
10/30/2013 at 00:57

I just took the header off the 919 not too long ago.

I ended up regretting over starting the engine. My poor, poor ears.

themanwithsauce - has as many vehicles as job titles > Ramblin Rover - The Vivisector of Solihull
10/30/2013 at 01:23

I don't know why, but I saw ITR when you typed ITB.......

YSI-what can brown do for you > Satoshi "Zipang" Katsura
10/30/2013 at 01:38

This seems like a good idea. I am doing this in a few weeks. . . what's the worst that can happen?

Satoshi "Zipang" Katsura > YSI-what can brown do for you
10/30/2013 at 01:57

Going to the doctor and ruined valves?

YSI-what can brown do for you > Satoshi "Zipang" Katsura
10/30/2013 at 01:58

Bah humbug, always trying to ruin my fun.

Satoshi "Zipang" Katsura > YSI-what can brown do for you
10/30/2013 at 02:13

There's always the Doritos option.

YSI-what can brown do for you > Satoshi "Zipang" Katsura
10/30/2013 at 02:18

Oh yeah, let me just go and get one. . . fuck all the gas stations are closed.

hike > YSI-what can brown do for you
10/30/2013 at 08:51

Yup. In an E-Van.

Dingers Ghost, Champion Jockey > hike
10/30/2013 at 09:38

And power strokes are natural whistlers to begin with. That would be a glorious noise.

NaturallyAspirated > YSI-what can brown do for you
10/30/2013 at 13:12

I had the header off my Subaru a few weeks ago to drop the steering rack. When I put the rack back in, I decided to start up the car without the header to check the rack and power steering lines for leaks before I got too carried away with re-assembly.

Holy moly is that loud. I never touched the throttle, just let it idle enough to cycle the rack a few times, but it sounded like a Porsche rally car.

By the way, DON'T do this and try to drive the car. The low pressure pulse in between exhaust cycles can suck cold air in, and if your valves are hot, you can crack or warp your exhaust valves from the temperature differential. That's the reason that WWII fighter planes had the tiny short pipes on the engines - they are just long enough to keep cold air from being sucked into the exhaust.

YSI-what can brown do for you > NaturallyAspirated
10/30/2013 at 13:27

I wonder if me and my friend can weld something up to bolt onto the engine for a similar effect. I won't be driving it, but I have to turn the engine on withou headers...I must hear the ungodly sound!!

Benzed92 > YSI-what can brown do for you
10/30/2013 at 19:42

Yessss, this just made my day. lol but my neighbors were definitely hatin' when I started her up.

YSI-what can brown do for you > Benzed92
10/30/2013 at 23:50

They just made that they can't be spoolin' Some days I wish I had a turbo :'(

Benzed92 > YSI-what can brown do for you
10/31/2013 at 16:04

Oh they certainly are, but I agree. You should just get a snail then!