Loudmouth 1?
01-18-2012 | 06:32 PM
#61
TECH Addict
Joined: Apr 2009
Posts: 2,354
Likes: 2
01-18-2012 | 10:27 PM
#63
Right, sounds great at idle or when on the throttle. It's when your driving around that it sounds like **** -to some. Bottom line is the OP just needs to do what he wants and decide if he likes it. It's a love/hate relationship with the LM1.
01-19-2012 | 11:09 AM
#66
sounds kinda like the old 72 c10 i6 I had a while back that had a rusty exhaust system, it's a very retro sound moreso than a warm and muscular sound you'd expect from a newer muscle car.
01-19-2012 | 11:46 AM
#67
On those restricted motors, I would imagine the X setup was maybe good for 5 perhaps 10 hp and the most. However considering the lightweight breaks, lubes, bearings that they do to restricted motors/cars (especially back then) it was huge. They spent countless R&D just to pick up 1-2hp becasue it was the defference between being able to, or not being able to pull out of the draft and pass.
Personally, I love the sound of LT with an X-pipe. Nice clean tone, deep at cruising. The real pitch change shows up in the upper rpm band where it really screams.
The redneck in me would love to do a Dr. Gas oval X system with boomtubes (spintech diffusers to knock the edge off) exiting in front of the rear tires. However, it is a lot of money for no gain other than being different.
Last edited by SSCamaro99_3; 01-19-2012 at 11:52 AM.
I also hear magnaflow sounds like a boat. Never got that one hahaha Must be some pretty sweet farm trucks and boats out there. 
01-19-2012 | 03:14 PM
#70
01-19-2012 | 04:15 PM
#72
If you look at the merges Lemons showed it is about how the pulses are brought together. The Magnaflow/FM bring them together in a fairly linear fashion. The other two "merges' are bringing the left pulses in at angles to the direction of flow. The pulses effectively bang into the wall of the I-pipe and become turbulent. When the banging and turbulent flow reach a resonance point with the rest of the exhaust you get rasp. Rasp is a flapping annoying sound (trust me I had the LT/ORY/LMI setup years ago). Mine was worst from 2200-3000 rpm, then it would clean itself up. H and X-pipes are far superior to Y-pipe setups. In 1994 Morgan-McClure Motorsports showed up with a Chevy Lumina for the Daytona 500 that had a noticeably higher pitch than the rest of the cars. They went on to dominate Speedweeks and win the race. The were running an X-pipe setup, and everyone else was still using H-pipes. They were more effecient, especially on a restricted engine where moving air and exhaust is paramount.
Any hard angles are terrible for flow. Think of water rushing passed a 90 degree turn. It will form an eddy, cavitate, and (in the case of water) dig a hole in the ground. The exhaust is a little different with the pulses, but the principle remains in effect.
On those restricted motors, I would imagine the X setup was maybe good for 5 perhaps 10 hp and the most. However considering the lightweight breaks, lubes, bearings that they do to restricted motors/cars (especially back then) it was huge. They spent countless R&D just to pick up 1-2hp becasue it was the defference between being able to, or not being able to pull out of the draft and pass.
Personally, I love the sound of LT with an X-pipe. Nice clean tone, deep at cruising. The real pitch change shows up in the upper rpm band where it really screams.
The redneck in me would love to do a Dr. Gas oval X system with boomtubes (spintech diffusers to knock the edge off) exiting in front of the rear tires. However, it is a lot of money for no gain other than being different.
On those restricted motors, I would imagine the X setup was maybe good for 5 perhaps 10 hp and the most. However considering the lightweight breaks, lubes, bearings that they do to restricted motors/cars (especially back then) it was huge. They spent countless R&D just to pick up 1-2hp becasue it was the defference between being able to, or not being able to pull out of the draft and pass.
Personally, I love the sound of LT with an X-pipe. Nice clean tone, deep at cruising. The real pitch change shows up in the upper rpm band where it really screams.
The redneck in me would love to do a Dr. Gas oval X system with boomtubes (spintech diffusers to knock the edge off) exiting in front of the rear tires. However, it is a lot of money for no gain other than being different.
Remember, rasp sounds good! LOL
01-19-2012 | 09:51 PM
#75
Rasp is really annoying however it probably shouldn't be called RASP. Rasp implies that it is as wheezy old man sounding noise. To me every time I hear rasp it sounds like people are talking about the sorta open airy sound exhaust can make. Maybe it should just be called reverb because really that's what it is. It's the sound of the cylinders banging into each other in the collector and creating that annoying sound from 2500 to 3000ish. The rasp is really annoying with an Pacesetter, ORY, LM1 setup. But like others have said "it clears up after that." But we spend alot of time below 4k rpms so the REVERB is annoying 
Also adding Cats to the equation pretty much eliminates the RASP but then you lose the volume.
Also adding Cats to the equation pretty much eliminates the RASP but then you lose the volume.
01-20-2012 | 10:26 AM
#76
True duals with sweet thunders, fm 1 chambers, and dynomax brand bullets all sound great in person at idle, cruise, and WOT/rev.
I've heard other style glasspacks on duals that sound like ****.
The LM1 is ok at idle and wot but cruise sounds horrible
I've heard other style glasspacks on duals that sound like ****.
The LM1 is ok at idle and wot but cruise sounds horrible
01-20-2012 | 11:23 AM
#78
LTs, ORY, and LM1 will make your eardrums sad, mine always are. Sounds awesome at idle and WOT, but cruising around just gives me a headache sometimes. The rasp is worse at 2300-3000 on mine and then starts to sound better as it heads north, but a good TD setup is definitely on my bucket list for this car.
01-20-2012 | 11:32 AM
#79
TECH Addict
Joined: Apr 2009
Posts: 2,354
Likes: 2
LTs, ORY, and LM1 will make your eardrums sad, mine always are. Sounds awesome at idle and WOT, but cruising around just gives me a headache sometimes. The rasp is worse at 2300-3000 on mine and then starts to sound better as it heads north, but a good TD setup is definitely on my bucket list for this car.
