Open Headers

[Xpnsv72fj]

Good morning everyone,

I just got my 40 back together and installed my new headers from marks off road. My question is can I drive my 40 to the exhaust shop on a open header to have the new exhaust made? Yes I know it will be loud I'm not worried about that, I just don't want to hurt anything. The only other option I have would be to rent a trailer and tow it there but if I can avoid spending that money it would be great!

As always thanks for the help, I hope everyone has a great weekend and a Happy Fathers day!

Josh

 

[AZMoonshadow]

How far? What's the ambient air temperature? Typically, unless it's really cold outside, you shouldn't have problems. The problem occurs when you turn off the engine and it sucks back in cold ambient air into a hot engine... You could always bolt on some cheap glass-packs to the header flange.

 

[Xpnsv72fj]

Not to far 10 to 15 miles at most and right now in VA it anywhere from 80 to 100 degrees.

Thanks Josh

 

[JackA]

You will be fine as long as the cops don't mind.

 

[JohnnyC]

I had to do it once... The pipe was off center of my collector ... It was loud... Got to the muffler place that said they "can do it" to find out ... They can't do it because they don't bend pipe ... Then why did you say you "can do it" after I asked "I have a header and need a pipe bent to connect to the muffler"

Found it very hard to be in my happy place during the drive back... And I'm usually there when driving the cruiser

 

[Xpnsv72fj]

I had to do it once... The pipe was off center of my collector ... It was loud... Got to the muffler place that said they "can do it" to find out ... They can't do it because they don't bend pipe ... Then why did you say you "can do it" after I asked "I have a header and need a pipe bent to connect to the muffler"

Found it very hard to be in my happy place during the drive back... And I'm usually there when driving the cruiser

Wow I never thought of that I will make sure to call them a head of time. How did you end up fixing it?

 

[Fast Eddy]

Just bolting on the collector will quiet it down some.

 

[JohnnyC]

I had to get my own pipe section ... And use my PO skills lol

 

[Troop Toter]

I drove mine with an open header about 10 miles to the muffler shop without the collector attached. Yep, it was loud. I can't tell if it did damage to the engine but some more of my hair fell out. But it does that about every day anyway. I just look for stuff to blame it on.

 

[sggoat]

If it weren't for the police, mine would be running open all the time--it will not hurt the engine---it breathes better--

 

[Xpnsv72fj]

Thanks for all the help guys!

Josh

 

[shelfboy1]

we raced one for several years at the local mudmushers track with open headers still got that engine for a spare good luck

 

[Downey]

Went on a run in So. Cal. where you were aloud to run open Headers, was young and dumb, had to do it. This was an all day run, the wife and I had migraine headaches within the first hour.

 

[JohnnyC]

the wife and I had migraine headaches within the first hour.

We have kids for headaches these days ... Cherry Bombs were very close to open header lol

Friends would bolt up to the header a cherry bomb with no tailpipe ... Somehow that was perfectly legal in the 80's ... Several towns had noise ordnance and would ticket that way... Young and dumb was fun at least

 

[65swb45]

My cheeks hurt just typing this.

A couple of decades ago I dropped by a customer's house that had me rebuild an engine for him. He'd also bought a header for which he did not have an exhaust yet. Knowing how critical the start-up is, I agreed to stop by and supervise.

He sheepishly opened the hood and showed me the solution he'd come up with: he'd punched about 60 1/4" holes in an aerosol can, cut the bottom off, and shoved it up the collector!!!!!!!!!!!!!!!





















IT STILL HAD THE PLASTIC SPRAY NOZZLE ON THE OTHER END!!!!

It actually held for about two minutes.

 

[chrisphillippe]

I had to do it once... The pipe was off center of my collector ... It was loud... Got to the muffler place that said they "can do it" to find out ... They can't do it because they don't bend pipe ... Then why did you say you "can do it" after I asked "I have a header and need a pipe bent to connect to the muffler"

Found it very hard to be in my happy place during the drive back... And I'm usually there when driving the cruiser

heh, how can they call them selves a muffler shop if they cant bend pipe?

 

[JohnnyC]

@chrisphillippe

That's the way it's gone in ny... They use 'prebent' pipe specific to the vehicle ... Still looking for a good muffler shop

 

[Weber Sarge]

I guess I'd better keep visiting our local guys here - they can make pretzels . Some are true artisans with their work , and pretty cheap at that . Mine is just off the shelf pre-bent sections that are welded together - I only run a 10" Magnaflow glass pack , whole system is 2.5" tubing . Yep , it's a bit loud with an odd "bark" right where the cam hits it's highest torque point when shifting . If I catch it just right , great for getting folks to wake up between shifts....lol .

Son of an old drag racer and general gear head , go figure .

For runs to the exhaust shop - at least bolt a 2' long piece of pipe off the end of that collector , it will prevent heat issues in the valves .

Sarge

 

[Xpnsv72fj]

Made it to the exhaust shop and back, it wasn't too bad just really loud when I had to get in to it to get up to speed. They got everything bent and welded together with a new muffler for $200 buck which I guess isn't that bad. Anyway it’s nice and quiet now at least as quite as a 40 can be!
Thanks for all the input
Josh