Re: do aftermarket exhausts increase gas mileage?
> <LAFFERTY@austin.rr.com> wrote in message
> news:YxTXa.152037$hV.9806644@twister.austin.rr.com ... >do aftermarket exhausts increase gas mileage? horse power? torque? > >thanks in advance, > > will it depends on a couple things....but it's possible for an aftermarket system to improve all three. factors such as "how well the aftermarket system is designed" "how well the original factory system was designed" etc have a big role. also, if the intake side is already at max capacity, improvements on the exhaust side aren't going to show any noticeable difference.... |
Re: do aftermarket exhausts increase gas mileage?
Jeff, you date and time are screwed....
Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's J Strickland wrote: > > They can do all of these things. Some will not do very much, and some others > will do wonders. What you need to look at is the entire system from block to > bumper. The older your vehicle is, the greater the positive impact will be. > My old CJ5 gained greatly from a new header, but gained less so from the > cat-back system that I had installed a few months earlier. (I had issues > with the cat-back, then subsequently installed a header and retained the > cat-back system, so I got to experience the improvement in stages.) > > Your motor is a pump that pumps air, the more air that can get out, then the > more air that can go in. If you open up the exhaust, then you can get more > air in. More in creates more power at the pavement. More power means greater > efficiency, which means less gas. > > <LAFFERTY@austin.rr.com> wrote in message > news:YxTXa.152037$hV.9806644@twister.austin.rr.com ... > > do aftermarket exhausts increase gas mileage? horse power? torque? > > > > thanks in advance, > > > > will > > > > |
Re: do aftermarket exhausts increase gas mileage?
In message <vj06bceee82pc1@corp.supernews.com>, "J Strickland" wrote:
>They can do all of these things. Some will not do very much, and some others >will do wonders. What you need to look at is the entire system from block to >bumper. The older your vehicle is, the greater the positive impact will be. >My old CJ5 gained greatly from a new header, but gained less so from the >cat-back system that I had installed a few months earlier. (I had issues >with the cat-back, then subsequently installed a header and retained the >cat-back system, so I got to experience the improvement in stages.) > >Your motor is a pump that pumps air, the more air that can get out, then the >more air that can go in. If you open up the exhaust, then you can get more >air in. More in creates more power at the pavement. More power means greater >efficiency, which means less gas. If you're running more air through, have to add more fuel to go with it. More power doesn't necessarily mean greater efficiency. > > > > ><LAFFERTY@austin.rr.com> wrote in message >news:YxTXa.152037$hV.9806644@twister.austin.rr.co m... >> do aftermarket exhausts increase gas mileage? horse power? torque? >> >> thanks in advance, >> >> will >> >> > |
Re: do aftermarket exhausts increase gas mileage?
They can do all of these things. Some will not do very much, and some others
will do wonders. What you need to look at is the entire system from block to bumper. The older your vehicle is, the greater the positive impact will be. My old CJ5 gained greatly from a new header, but gained less so from the cat-back system that I had installed a few months earlier. (I had issues with the cat-back, then subsequently installed a header and retained the cat-back system, so I got to experience the improvement in stages.) Your motor is a pump that pumps air, the more air that can get out, then the more air that can go in. If you open up the exhaust, then you can get more air in. More in creates more power at the pavement. More power means greater efficiency, which means less gas. <LAFFERTY@austin.rr.com> wrote in message news:YxTXa.152037$hV.9806644@twister.austin.rr.com ... > do aftermarket exhausts increase gas mileage? horse power? torque? > > thanks in advance, > > will > > |
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