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Old Dec 12, 2006 | 11:54 AM
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Default Long drive open headers

Aside from the deafening noise, terrible gas mileage, unwanted attention from local highway authorities and bad gas mileage, what is the risk of doing damage to the heads/exhaust valves from running open headers for say 9 hours strait.
I need to get from Charlotte to Philly to pick up my girl friend, then I need to get from Philly to Albany NY, It's a 3 1/2 hour second leg, i think she might kill me.
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Old Dec 12, 2006 | 12:14 PM
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i drove on Power tour with my cutout open for like 8 hours. I think your fine.
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Old Dec 12, 2006 | 12:38 PM
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Aside from what you mentioned and a very dirty undercarrage, you should be okay.
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Old Dec 12, 2006 | 12:43 PM
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That plus burned O2's which will make your car run like ****.
I would at least run 2 to 3 ft of pipe on each header.
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Old Dec 12, 2006 | 12:57 PM
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Default Ehaust gas inside car?

What about the exhaust gasses passing into the car? If the pipes don't extend out past the body, I would think that this might be a problem.

Remember, you can't smell Cabon monxide.

Besides that I don't think that 9 hrs in a straight exhaust car is too romantic. I used to wear earplugs when racing Enduros and Hare Scrambles because the noise in itself is tiring.

Bob K.
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Old Dec 12, 2006 | 01:10 PM
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I drove mine for a week before getting in to the exhaust shop. Didn't even burn an O2, but some have.

As long as the car isn't just sitting idleing, the gases won't be an issue.
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Old Dec 12, 2006 | 01:10 PM
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Originally Posted by PREDATOR-Z
That plus burned O2's which will make your car run like ****.
I would at least run 2 to 3 ft of pipe on each header.
How long will it take to burn the O2 out. Would this still be the case if the motor was running extremely rich ??
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Old Dec 12, 2006 | 01:31 PM
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I'm not a pro by far but I would almost think that the rich would be just as bad, at least as far as running goes and could possibly foul/burn them up becuase of the little element that heats a little bit to sniff appropiately. I think if it runs really rich it won't get as hot as it needs to be making the car runs bad/possibly burning it out? I'm not sure just my two cents! There is an injection pro in here that can probably say for sure!
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Old Dec 12, 2006 | 01:32 PM
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The O2s need to be changed soon anyway, I need to turn all the codes off for no AIR, EGR, rear O2s, so i can have a look at my air fuel at 1500 in 6th, what's an ideal mix for cruising? I'll see about mocking up a section of pipe before I can get something more permanent.
Just got the right side O2 hooked up and finally go to go WOT and get to the red line, pulls a lot better than it did with stock manifolds, love the pace setters.
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Old Dec 12, 2006 | 01:39 PM
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Originally Posted by ArrestMeRed99Z28
The O2s need to be changed soon anyway, I need to turn all the codes off for no AIR, EGR, rear O2s, so i can have a look at my air fuel at 1500 in 6th, what's an ideal mix for cruising? I'll see about mocking up a section of pipe before I can get something more permanent.
Just got the right side O2 hooked up and finally go to go WOT and get to the red line, pulls a lot better than it did with stock manifolds, love the pace setters.
yeah well then maybe you don't have a lot to worry about if you are changing them soon, I'm not sure what a good ratio would be for cruising I would think something like 13 or 15 to 1? But I do know that if you are doing the tuning yourself you should tap in to the part throttle fuel map to tune for better economy while cruising, it helps out after the mods! There was a guy in Dallas who was getting 25MPG on a motor that was pushing well over 420hp NA, not solely because of the part throttle adjustment but it was definitley a help.
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Old Dec 12, 2006 | 05:22 PM
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o2s can all be different.....the same brand and type of sensor can be different in the way it breaks....its a sensor...thats why they dont have a "expected" break time....i mean cmon its a part of a car
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Old Dec 12, 2006 | 08:46 PM
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Originally Posted by staringback05
o2s can all be different.....the same brand and type of sensor can be different in the way it breaks....its a sensor...thats why they dont have a "expected" break time....i mean cmon its a part of a car
yeah true true
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Old Dec 12, 2006 | 08:50 PM
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earplugs are your friends
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Old Dec 12, 2006 | 08:53 PM
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just make sure you dont pass out from the fumes to
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Old Dec 12, 2006 | 09:24 PM
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its not that bad...went 4hrs with open headers this weekend....just bad gas milage
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Old Dec 12, 2006 | 09:56 PM
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first is there a reason for not getting it fixed. second the fumes will get too you eventually. three cops and other drivers on the road wont appreciate it. and im sure your girlfriend will enjoy it. do something to make it safe at least.
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Old Dec 12, 2006 | 10:28 PM
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i drove around with open shortie headers and you wont' smell anything, but besides what you mentioned, you will want to watch the heat from your headers because there right under your *** where you will be sitting and that may cause problems because the heat will lurk, could burn your carpet i'm not sure thats the only thing i worried about when i drove around but being winter you may not have to worry about that i did it in 105 degree dry california heat.
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Old Dec 12, 2006 | 10:32 PM
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You will contemplate suicide after about 3hrs... good luck man
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Old Dec 12, 2006 | 10:34 PM
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Yeah I would think something might catch fire.??
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Old Dec 12, 2006 | 10:42 PM
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Originally Posted by 85firebird
i drove around with open shortie headers

F that.
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