backpressure??

elcamman006 · Posted: Wed Apr 09, 2008 11:34 am Post subject: backpressure??

does backpressure exsist in a v8 i know it does in the little ricers? but i was thinking of doing cherry bombs or even streight headers with pipes, but my friend brought up the point of back pressure and that i would have no low end if i went strieght out with no crossing, is he correct?

Snaggle To0th · Posted: Wed Apr 09, 2008 10:03 pm Post subject:

it does but why worry about it? theres no need to unless you use the correct diameter exhaust pipe. that and turbo applications
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elcamman006 · Posted: Wed Apr 09, 2008 10:59 pm Post subject:

so it wont mess up low end? so should i do glass packs or can i go strieght what would have more power

CoyoteOn2 · Posted: Thu Apr 10, 2008 7:54 am Post subject:

Set your mind at ease, Glass Packs verses straight both will have the same flow. Glass packs in essence are a straight thru flow that has a side chamber or area that is packed with fiberglass or steel wool type of material. This design is for sound control only, and will not affect the flow to any degree. They will minimise the exhaust "POPS", or backfire "POPS" that can be as they use to say, "ticket bait". They also act somewhat like a spark arrestor. Glass Packs are not a chambered style design of muffler that re-routs the flow, or restricks the flow.
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elcamman006 · Posted: Thu Apr 10, 2008 10:43 am Post subject:

got ya thanks. so ill prob go with the glass packs. but no on the cros pipes then?

elcamman006 · Posted: Thu Apr 10, 2008 10:44 am Post subject:

got ya thanks. so ill prob go with the glass packs. but no on the cros pipes then?

Snaggle To0th · Posted: Fri Apr 11, 2008 11:46 pm Post subject:

An X-pipe or H-pipe to what you are referring to most likely dont DEAL with backpressure they deal with the actualy FLOW of the exhaust gases and allow them to cross over to one another and project the sound waves to a more crisp sound wave which in return means better flow. WEITHER I got that correct I'm not 100% sure its been a while since i even thought of describing them. I can 100% guarantee this tho! It will give you more horse power and torque. In my opinion glass packs sound like crap, using a 2 chamber muffler such as Flowmaster...Knowing that your from nor cal probably near Sac Town the Flowmaster assembly plant isnt far! They are great mufflers have always used them and you get what you want out of them.
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elcamman006 · Posted: Sat Apr 12, 2008 4:18 pm Post subject:

well i think im going to go with stright headers.. but i should cross them and i would get more power than streight back?

conquista90 · Posted: Sat Apr 12, 2008 6:01 pm Post subject:

Stop the text message talk. I have to go back and read every excuse for English that you spew at least 3 times before I can kind of get the concept of what you're trying to convey. Yes, backpressure exists. Why would it be dependent on the number of cylinders?

In my opinion, glasspacks sound like explosive diarrhea. Sure, they flow nice, but so do nowadays mufflers. An X pipe, would be good, but an H pipe would be louder. And I would not advise running straight pipes. It's illegal.

elcamman006 · Posted: Sun Apr 13, 2008 3:40 am Post subject:

im getting so many different answers about the back pressure what flows better x or H

Snaggle To0th · Posted: Mon Apr 14, 2008 1:05 pm Post subject:

IF IT WERE ME! Id get a X pipe they flow better...Better flow means more power. ya digg? YOU DONT need to worry about back pressure there are more ugly ducklings you need to be worried about. Especially your emissions and if you live in Sac Town you need to worry about Sac Town police. THEY don't joke around.
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conquista90 · Posted: Mon Apr 14, 2008 4:09 pm Post subject:

Snaggle To0th · Posted: Mon Apr 14, 2008 4:47 pm Post subject:

dougs85 · Posted: Mon Apr 14, 2008 10:49 pm Post subject:

elcamino74guy · Posted: Tue Apr 15, 2008 1:47 am Post subject:

A little backpressure can be a good thing. Helps scavenge the cylinders. Too much is bad but a little is good. Right now when I let off on the gas on the freeway I can actually hear the exhuast burble which is neat. I had the same thing on my 79 Z28 and it was awesome.

Happy

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