Just put muffler eliminator's on and have a question.
#1
Drifting
Thread Starter
Just put muffler eliminator's on and have a question.
Why did GM go from 2.75" down to 2.5" right before the stock mufflers and then down to 2.25" after the muffler? I always thought it was 2.75 the whole way.
At first I was concerned about losing some power because the shop installed 2.5", but after seeing the stock setup, I think it will flow better.
At first I was concerned about losing some power because the shop installed 2.5", but after seeing the stock setup, I think it will flow better.
#3
Drifting
Thread Starter
The sound is mean, but when the rpm's are below 2k and the engine is under load, the resonance might be to much for me. The flow is also much better which is what I am after. Luckily, the shop did not have the tips in, so they just cut them right behind the stock muffler where the 2.75 goes to 2.5. That way I get about a week to drive it without any mufflers and see if I want to keep it that way or buy some mufflers that flows better than stock. After seeing the stock muffler, anything would flow better.
If I need to buy some mufflers, what would be a good set (no flowmaster or cherry bombs )??
If I need to buy some mufflers, what would be a good set (no flowmaster or cherry bombs )??
#4
Le Mans Master
If resonance is an issue, it seems Corsa is the only way to go... Personally I like it loud, so once I get an X pipe, I'll ditch the elims and go with MagnaFlows.
#6
Drifting
How short did they cut the pipes? It makes a huge difference when they exit out behind the bumper versus exiting under the car. So if they're cut as short as I think you're saying, it will be much quieter inside when the tips are on and they exit behind the car.
Actually, stock LT1 mufflers flow really well if you want it kind of quiet. My L98 has Flowmaster 40s and they sounds awesome with no resonance but I also have long tubes and a custom Y pipe. The best set up for maximum flow and no resonance is the Corsa but you will pay big bucks for it.
Actually, stock LT1 mufflers flow really well if you want it kind of quiet. My L98 has Flowmaster 40s and they sounds awesome with no resonance but I also have long tubes and a custom Y pipe. The best set up for maximum flow and no resonance is the Corsa but you will pay big bucks for it.
#7
Race Director
Lots of opinions out there about this subject though. What is objectionable to one person is "sweet music" to another.
#8
Drifting
Thread Starter
You did warn me!! The good news is that I kept the original mufflers and will put them back on if it is still this bad after the tubes are installed to the back of the car. I tried shifting down a gear, but I live just north of JC and climbing a long incline up the MO river valley, I was in 5th going 80 mph before the resonance went away (don't want to think what kind of speed would be needed in 6th gear). I am really a slow / conservative driver, so I was white knuckled the whole way. I could just picture what a police officer would say if they pulled me over and my excuse was, sorry officer, I had to go faster to keep the sound pollution down.
#9
Race Director
Wow, I guess I didn't understand that they didn't actually exit out from under the car in your original post. Once you get the tips to exit out behind the car, the resonance will be cut down and for the most part bearable. But you will still have some when you place the engine under a load in a high gear.
I know exactly what your talking about there. I took a nice drive along MO 94 yesterday along the river. I love that drive from Hermann to St. Charles. Lots of bikes and other Vettes.
I know exactly what your talking about there. I took a nice drive along MO 94 yesterday along the river. I love that drive from Hermann to St. Charles. Lots of bikes and other Vettes.