i have to take the stang in to the muffler shop on Tuesday, have to run open headers to get there. Besides noisse, is this safe? Guy at work told me i could start a fire from the floor getting to hot.

 

A tow is probably cheaper than a ticket. Call up the muffler shop and see if hey have a deal worked out with a local tow company with a roll back truck.

If you do drive it I would get some turn downs and bolt them up to your collectors to keep you from toastingyour undercarrageor carpet.

 

I drove 10 miles with open headers to the muffler shop. Nothing blew up or started on fire... Don't be so worried.

 

Please, i drove my car 2k miles on open headers... with some mufflers stuck on them. It's cool, NOTHING will happen.

 

well, i tried to run open headers to the shop, it was loud, but ran into a promblem. When i put it into gear, it backfired like crazy!!! What would be the cause in this? Itideld fine, no backfires, just when you put it in gear.

 

Backfiring is a timing problem.

 

its strange because i did nothing to the timing, and it only does it in gear. Should i redo timing after headers were installed? It never did it before.

 

Open headers can't be much louder then most of the Harley's that go by me with a deafening roar..... And I can get a ticket for having my stereo too loud...go figure.

 

A "backfire" is when a spark has ignited fuel and the resulting explosion comes out of the carburetor or intake.
Backfiring during starting is a timing problem.
Backfiring during any other time is usually an air/fuel ratio problem *not* a timing problem.

An "afterfire" is when unburned fuel mixes with cold air as it exits the engine.
Afterfire is usually caused by the temperature difference in the hot unburned fuel and the surrounding cool air.

I think you are experiencing an afterfire because the unburned fuel does not have the chance to cool down in the exhaust system before it mixes with the surrounding air.

 

Does itreally backfire through the intake, or are we talking exhaust "backfire",If we are talking exhaust "pops", does the car run bad as well?

Carbed cars do "backfire" (through the exhaust) more than we think, when a full exhaust is in place we don't really hearmost "small"exhaust popsunless we are really listening for them.

Open headers make these pops more noticable for two reasons, the first is simple enough, the pops are unmuffled, and second, the hot exhaust air reaches atmosphere while it is still hot enough to combust the unburned fuel it contains, when it hits the atmosphere, a new supply of oxygen is available to complete combustion.

A cold engine usually will backfire more than a warm one, due mainly to the fact that while the engine is cold, the engine is not as efficient at burning the gasoline, and a cold engine usually is using the choke to one degree or another, enriching the mixture even further, which of course causes more unburnt fuel to detonate once it has a fresh supply of oxygen.

That sucker is going to make noise when you are driving and remove your foof from the accelerator pedal,,,,

So, I am saying that the exhaust explosions are not going to cause you any problems, mechanical problems anyway!!

Driving your car with the headers un-corked should not cause you any issues, as long as the exhaust air is not directed toward somthing that can be damaged by high heat or somthing that will burst into flames when contacted by high heat, I doubt that you will have issues with this.