I'm running my truck with just open exhaust manifolds and I have been trying to figure out exactly how bad this is on my motor and truck itself. I basically only need this information because I need to drive my truck somewhere to get some parts to fix it. This truck is my only means of transportation right now.

Answer:

This is somewhat of a bigger deal than what you think, so I'm just going to put this in checklist format. Don't take anything offensive because we have all been there and done that. Things happen in this world, and there is just no way around those things at times. Let's get started!

1. Your truck is not designed for this. Open manifolds are not what the truck is designed for and that's just putting it plain and simple for ya with no details. Do you use your snow blower to mow the lawn? No. Same type of deal.

2. Backpressure and the lack of it. Or actually I shouldn't even say the word lack because there is NONE. Good bye gas mileage and depending on what motor.. your torque, tow capacity and so much more.

3. Valves. A common misconception that I hear a lot is that the valves are going to warp. I disagree with people saying that because I have never seen it nor believe. What I do believe though is that you will eventually just get burnt up valves that are pretty much shot. How can you expect a metal product to hold up to such extreme ideals of interaction with other substances like that.

4. Fuel Burning. With only manifolds on the truck the fuel will burn at an incorrect ratio since there is no backpressure. Not only that, but I imagine it will burn in the wrong combustion mixing area that it wants to usually.


This list goes on and on. And to be completely honest with you.. the outcome of this could be not good. I'm just giving your the truth because that's what we do around here. Thanks for visiting the site, and I hope you can either make it to your next place safely or find a different ride to get your needed parts. Thank you again.