Originally posted by BBR
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Why round exhaust pipe?
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Originally posted by TheSilverBuick View PostElementary Physics.
Thing I'm getting at is a well designed exhaust system, whether it is round or square can be made to work, you just need to know how to design it right........ I posted a pic of a Nascar exhaust earlier, don't think it's just designed like that for clearance, it's designed like that cause it makes more HP..........
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I cant beleive this is still going, a little real world info
1. My car 4 inch into a DR Gas 4" X pipe ( so it has even less back pressure 20" back from the collector into a 4" bullet ( see thru) out a 4" outlet in front of tire. Took them off gained 2.5 and 5 MPH at the track
2. Docs SEERED Car, 4" into a Borla 4" muffler into a 4" turn down took the mufflers off 2.0 and 4 MPH faster.
Both cars have like no "Restriction" its does change the tune lenght of the exhaust maybe its more about the tune lenght than the shape of the exhaust......2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
First to run in the .90s .80s and .70's in SBN/A
2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!
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Just bought a Nascar boom tube to finish the plumbing on the Red Furd.
3" to a 3" Dynomax VT, to the boom tube located on the passenger side in front of the rear tire.
Its a street car so I don't care about the science on this one. I figure that if it exhausts half of 850 hp, then it won't have any trouble with my 300rwhp.I'm still learning
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Originally posted by chevy3100truck View Postwww.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!
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Originally posted by TC View PostWell Nascar doesn't have a problem using square exhaust.......
"First I believe if you keep the RPM's high enough, ANYTHING is possible." PeeWee
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Originally posted by JeffMcKC View PostI cant beleive this is still going, a little real world info
1. My car 4 inch into a DR Gas 4" X pipe ( so it has even less back pressure 20" back from the collector into a 4" bullet ( see thru) out a 4" outlet in front of tire. Took them off gained 2.5 and 5 MPH at the track
2. Docs SEERED Car, 4" into a Borla 4" muffler into a 4" turn down took the mufflers off 2.0 and 4 MPH faster.
Both cars have like no "Restriction" its does change the tune lenght of the exhaust maybe its more about the tune lenght than the shape of the exhaust......Last edited by SuperBuickGuy; August 2, 2012, 02:10 PM.Doing it all wrong since 1966
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Originally posted by SuperBuickGuy View PostI'll buy that, but to ask the question which won't make a bit of difference to the Corvette (in short, to learn a bit) - what about Vizard's assertion that there's a reflective wave that comes back through the exhaust from the tip?2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
First to run in the .90s .80s and .70's in SBN/A
2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!
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Originally posted by JeffMcKC View PostI cant beleive this is still going, a little real world info
1. My car 4 inch into a DR Gas 4" X pipe ( so it has even less back pressure 20" back from the collector into a 4" bullet ( see thru) out a 4" outlet in front of tire. Took them off gained 2.5 and 5 MPH at the track
2. Docs SEERED Car, 4" into a Borla 4" muffler into a 4" turn down took the mufflers off 2.0 and 4 MPH faster.
Both cars have like no "Restriction" its does change the tune lenght of the exhaust maybe its more about the tune lenght than the shape of the exhaust......
There is a reason real race cars don't have mufflers and other stuff hung onto the exhaust.Last edited by CDMBill; August 3, 2012, 08:56 AM.Drag Week 2006 & 2012 - Winner Street Race Big Block Naturally Aspirated - R/U 2007 Broke DW '05 and Drag Weekend '15 Coincidence?
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Originally posted by CDMBill View PostThe pick in ET and MPH tells us that the complete systems are robbing power. When we ran in '07 removing the the exhaust after the Dr. Gas x-pipe was worth .25 seconds and 4+ MPH so there is some consistency despite a fair amount of variance in performnce and engine design and output. My collector tapers from 4" into the Dr.Gas 3.5" frame clearance tubes to a 3.5" x-pipe. The full exhaust tapers to 3" after the x through 3" DynoMax Ultraflo mufflers, over the axle to 18" bullets as resonators. The goal there is quiet, at the track his year it all comes off in favor of 4" dumps after the x. That's 70# of weight loss and we'll see what we pick in HP as refected in MPH.
There is a reason real race cars don't have mufflers and other stuff hung onto the exhaust.
Also IMO if the collect is 4" you need to run 4" pipe all the way back, anything smaller is just creating a restriction, which I guess you already figured out.........
Which brings up the question, is back pressure really needed in a performance application??.....Last edited by TC; August 2, 2012, 04:23 PM.
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Originally posted by JeffMcKC View PostI cant beleive this is still going...Nitrous, baby!!...
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Originally posted by jcharliem View PostI can. Any thread with TC vomiting on it, is like the Energizing Bunny...just keeps going on and on. Because the fool is hell-bent on proving himself correct with his 75% out-of-the-box thinking and Google links.
Get a clue and quit fishing, as the only troll is the troll that calls people out.......
Though who goes down a mountain faster, a guy sliding on his ass or a guy tumbling head over heels??........Last edited by TC; August 2, 2012, 05:25 PM.
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Originally posted by TC View PostYa tell me something I don't know........Life is short. Be a do'er and not a shoulda done'er.
1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail
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