which street mufflers
08-12-2009, 04:11 AM
#22
Member
MASTER JOURNEYMAN
Thread Starter
Join Date: Oct 2006
Posts: 35
being my motor is a 509 10.8 solid roller will this play a major difference even with the quieter mufflers. more concerned with startup and normal takeoff sound levels to i get out of my neighbor hood.
08-12-2009, 10:33 AM
#25
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by Tod74
Originally Posted by ashbros
.
My boy just put a set of magna flow mufflers on his vette and I must admit they sound pretty wicked.
My boy just put a set of magna flow mufflers on his vette and I must admit they sound pretty wicked.
If you fire that thing up open headered, it sounds like a beast.
08-14-2009, 03:35 PM
#27
Senior Member
RACING JUNKIE
Join Date: Mar 2008
Location: Emmett, Idaho
Posts: 7,334
Originally Posted by OneBadGMC
Originally Posted by Tod74
Originally Posted by ashbros
.
My boy just put a set of magna flow mufflers on his vette and I must admit they sound pretty wicked.
My boy just put a set of magna flow mufflers on his vette and I must admit they sound pretty wicked.
If you fire that thing up open headered, it sounds like a beast.
Compression also has a great deal to do with that 'sharp' exhaust sound.
08-14-2009, 05:36 PM
#28
Senior Member
EXPERT BUILDER
Join Date: Jan 2005
Posts: 336
got back from chassis dyno from this guys shop...
http://www.youtube.com/watch?v=_FdF0wgTikM
looks like my homemade jobbers made best of 625 hp@7000 rpms.best open headers run was 650@7000. thats on roughly a 800 hp 572.
on a 260 hit of nitrous it made 854@7000 thru mufflers with air fuel ratio ranging from 10 to 10.5 to 1
i realize i need to relieve pressure and not to dead head regulators even though my pump has a return right off it to fuel cell. when fuel pump is on with 6 pounds flowing fuel, not flowing its like 12 pounds thus telling with the rich condition on spray it wants a return line.......
final answer, 3% power loss with home made mufflers...not bad for 3" id 4" od bullet mufflers with half inch holes swiss cheesed in the 3" pipe.
http://www.youtube.com/watch?v=_FdF0wgTikM
looks like my homemade jobbers made best of 625 hp@7000 rpms.best open headers run was 650@7000. thats on roughly a 800 hp 572.
on a 260 hit of nitrous it made 854@7000 thru mufflers with air fuel ratio ranging from 10 to 10.5 to 1
i realize i need to relieve pressure and not to dead head regulators even though my pump has a return right off it to fuel cell. when fuel pump is on with 6 pounds flowing fuel, not flowing its like 12 pounds thus telling with the rich condition on spray it wants a return line.......
final answer, 3% power loss with home made mufflers...not bad for 3" id 4" od bullet mufflers with half inch holes swiss cheesed in the 3" pipe.
08-15-2009, 10:35 AM
#29
Member
MASTER JOURNEYMAN
Thread Starter
Join Date: Oct 2006
Posts: 35
spoke to my fabricator and says between the 4 link bracing and all the other bracing there is no way but before the rearend and turning to the outside before the rear tire is also history. still hoping to get the x pipe atleast. guess i will have to experiment with different mufflers and only weld the correct ones.