06-13-2011, 06:04 PM | #1 |
Drives: 2010 Camaro SS Join Date: Jan 2011
Location: Los Angeles
Posts: 205
|
Back pressure and the camaro...
i was told from an old friend the other day that for the best performance, high back pressure was needed for low Rpms and close to none was needed for higher rpms. I didnt believe him, so i removed my exhaust just after the cats and drove around for a bit. Off the line the car was horrible,but once up to speed it felt great!( sounded amazing as well)
So i got to thinking, has anyone developed an exhaust with a valve after the cats that can direct the exhaust to two different channels? One would follow through the resonators and out the muffler (for higher back pressure, lower rpms), the other straight out of the pipe (for lower back pressure, higher rps). Im assuming the valve could work off a vacuum line, just like many of the BMW's have on the mufflers. Would this have any effect on performance at all, or is it completely a dumb idea?
__________________
2010 camaro 2ss LS3
Corsa catback exhaust w/muffler delete, hennessey intake, Pfadt springs, Hurst Short throw Shifter, Murdered black. GO TEAM LS3 |
06-13-2011, 06:19 PM | #2 |
Drives: 2010 Camaro SS/RS 6spd Join Date: Sep 2009
Location: Jefferson, Ga
Posts: 4,399
|
How about something like electric cutouts?
__________________
|
06-13-2011, 07:58 PM | #3 |
雪の玉
Drives: '22 Z71 RST Silverado Join Date: Feb 2011
Location: South
Posts: 3,415
|
ummmm, electric cutouts
|
06-13-2011, 08:12 PM | #4 |
Drives: 2010 Camaro SS Join Date: Jan 2011
Location: Los Angeles
Posts: 205
|
Never heard of em...ill google it right now. are there any significant benefits?
__________________
2010 camaro 2ss LS3
Corsa catback exhaust w/muffler delete, hennessey intake, Pfadt springs, Hurst Short throw Shifter, Murdered black. GO TEAM LS3 |
06-13-2011, 08:17 PM | #5 |
Drives: 2010 Camaro SS Join Date: Jan 2011
Location: Los Angeles
Posts: 205
|
wait, just did a search but it seems you have to elecronically open the valves...is that correct? and if thats the case, whens the best time to open them?
__________________
2010 camaro 2ss LS3
Corsa catback exhaust w/muffler delete, hennessey intake, Pfadt springs, Hurst Short throw Shifter, Murdered black. GO TEAM LS3 |
06-13-2011, 08:27 PM | #6 |
Voodoo Medicine Man
Drives: Black 2SS with RS package Join Date: Jul 2010
Location: IL
Posts: 917
|
Corvette comes with a dual mode exhaust...the ZL1 will come with it also...not the same as electric cut outs...which I have and are a lot of fun!
But what u are talking about is dual mode exhaust
__________________
|
06-13-2011, 08:44 PM | #7 |
66ford pickup
Drives: Still lookin for a camaro Join Date: Apr 2011
Location: Tempe
Posts: 97
|
electric cutouts are made to bypass the whole exhuast system, so basically you would pull ur exhuast off cut out a section and weld the cutouts on then run the wire to a switch inside that would open and close. you have completely close to no back pressure which gives u less accel and more top speed and its noise right outta the heads... there so loud there illegal, like someone says above.... not really illegal but if a cop is bored he will most likely get ya... but if you have electric cutouts you can just close em.... but yes.. they are DEFINITLY worth it. i spent a few days lookin researchen till i had made my own. there the manual ones but real easy to make with the right tools.
__________________
1966 F100 352 V8 white/blue |
06-13-2011, 11:30 PM | #8 |
Drives: '24 Camaro 2SS Conv. & '21Blazer Join Date: May 2011
Location: Rochester NY
Posts: 519
|
Would have been nice if GM offered the dual mode exhaust as a factory option on the Camaro... like they do on the Vettes. It's good for 6 more HP and sounds great when you step on it!
__________________
'24 Camaro 2SS 6M Convertible
|
06-14-2011, 03:59 AM | #9 |
El Chupacabra
Drives: 2011 2SS/RS A6 Black/Black Join Date: Jun 2011
Location: Lakewood, CO
Posts: 923
|
Yes, and it's a $1000 + option on the Vettes. For 6hp and some noise.
|
06-14-2011, 06:40 AM | #10 |
Orange Camaros Rule!
Drives: 2010 1SS LS3 RS IOM Join Date: Feb 2010
Location: Texas
Posts: 1,559
|
That's less than my GMPP Axle Back.
__________________
Mary - Orange Camaros Rule! |
06-14-2011, 06:44 AM | #11 |
Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008
Location: S.W. Florida
Posts: 6,294
|
|
06-14-2011, 07:05 AM | #12 | |
Orange Camaros Rule!
Drives: 2010 1SS LS3 RS IOM Join Date: Feb 2010
Location: Texas
Posts: 1,559
|
Quote:
__________________
Mary - Orange Camaros Rule! |
|
06-14-2011, 07:12 AM | #13 |
Drives: 2015 c7 Join Date: Nov 2009
Location: MI
Posts: 7,462
|
|
06-14-2011, 07:15 AM | #14 |
X SS
Drives: 2010 Camaro 2SSRSM6 1988 Sportside Join Date: Jan 2011
Location: iN tHE zEN dEN
Posts: 661
|
I have the Quick Time Perfromance cut outs.. Love em...Sooooooooooo LOUD!
__________________
MODS: PEDDERS XA COIL OVERS, STAGE 3 CAM, McLEOD CLUTCH, SKIP SHIFT, , HURST SHORT THROW, CAI INTAKE, SCOOP, WASHER RELO KIT, KOOKS HEADERS, KOOKS HI FLOW CATS, CUSTOM TUNE, QTP CUT OUTS, PAINTED STRIPES, PAINTED SS EMBLEMS, PAINTED FIN, PAINTED REAR TAIL LAMP BEZELS, HERITAGE GRILLE, DUCTS, AAC STUFF, BAER ROTORS, HAWK PADS, FUZZY DICE, LASER BEAMS, DISCO BALL, SYBIAN & 3 CHROME VALVE STEM CAPS................
|
|
|
|
|