After researching lots of threads I finally decided to pull the trigger and got the new muffler installed today.
The muffler guy seemed smart enough and he convinced me that the Super 40 would get me the deepest tone. At all costs I did not want the indy car or ricer sound.
The sound is what I expected but now I have a loud and obnoxious drone at about 1500 rpm. Everywhere else it sounds good but the problem is that around town the sound goes from good to irritating as soon as the OD kicks the rpm down into that range.
I will probably go back and ask for something else but hope you V10 dudes can make suggestions. In looking at the Flowmaster website I'm thinking the series 50 HD might get rid of the interior noise but still give a decent outside sound level.
Ideas?
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05 F250 4x4 V10 King Ranch, 5 spd auto, FX-4
96 F150 SC 4X4 5.0 5 spd, Eddie Bauer
98 Mustang GT 4.6 5 spd ,Magnapaks
91 Mustang LX 5.0 HO Endless mods - One fun money pit!
91 Ranger 4.0 5 spd, 4" Lift
We have the FM 70 series on our 05 V10 and it also has that drone around those rpms but no where else. I would venture to say that I think any of the Flowmaster mufflers will have some drone on the 3v V10's.
We had a customer tell us to try a Gibson muffler has they did not experience the drone. Dont remember which Gibson muffler it was though...
Now on our 99 V10 with the FM70 I get no drone at all. 2v VS 3v V10 I guess.
Can you describe how loud the drone is with the 70?
With my setup it is fine at 1800 but when the O/D kicks it down to 1500 it's loud enough to interrupt conversation and you can feel the vibration through the floor. I thought pickups were less affected by interior noise compared to an SUV, which is why I think FM came up with some of the later series variations to quient the inside noise.
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05 F250 4x4 V10 King Ranch, 5 spd auto, FX-4
96 F150 SC 4X4 5.0 5 spd, Eddie Bauer
98 Mustang GT 4.6 5 spd ,Magnapaks
91 Mustang LX 5.0 HO Endless mods - One fun money pit!
91 Ranger 4.0 5 spd, 4" Lift
A super 40 has a very small capacity thats why you get a lot of drone. As the muffler breaks in it will drone more. Might want to look at the FM50SUV muffler, it has more capacity and will let more sound out. The FM50HD will be louder than the SUV but may drone a little more. Its a tradeoff, a muffler that lets more sound through will also drone more thats the way it is. An FM50BB or FM70BB2 will cut drone down to next to nothing but it will cut down the sound output also.
I have an FM70 on my truck which I blocked of the one chamber on one to add sound. When the muffler was new I got no drone but now that its broken in I get some at around 1500rpm but nothing loud or obnocious.
Thanks for the reply.
I kind of figured I would have to go to a higher series muffler but am looking for the middle ground in exterior and interior sound.
I also had figured that I need to stay with a chambered muffler. I've heard that straight thru designs are higher pitched and ricey sounding. Has anyone had any success with any of those on a V10?
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05 F250 4x4 V10 King Ranch, 5 spd auto, FX-4
96 F150 SC 4X4 5.0 5 spd, Eddie Bauer
98 Mustang GT 4.6 5 spd ,Magnapaks
91 Mustang LX 5.0 HO Endless mods - One fun money pit!
91 Ranger 4.0 5 spd, 4" Lift
A straight through muffler usually does not sound as good as a chambered muffler on the V10. Some guys here had the banks system which has a straight through muffler and they changed the muffler to a chambered one.
Heres a thread that shows what I did to my exhaust. http://www.ford-trucks.com/forums/73...-fm70-mod.html If you get an FM70 and its still too quiet after its broken in you can block off one of the chambers like I did.
I have some vids of the 3V with an FM70 I believe. I'll post it when I get a chance.
Talked to Flowmaster yesterday. The guy was a bit surprised that somebody put a super 40 on a V-10. He was chuckling a little when he said it probably sounded bad. Gave me the speach about why the V-6 and the V-10 share the same problem with getting a nice sound. He said FM always recommends a 70 series for stock applications.
I asked about a 50 series but he stayed with the 70, and noted that if I did go with a 50 to get the quietest one. He said for a V-10 the 70 series flows just as good as any other, but just tames the odd sound that comes with this motor. he said the V-10 is a great engine, just hard to make them sound good (or like a V-8 which is what everyone wants to hear).
So I studied their charts and ordered a 50 SUV. I would like a bit more sound, but this one should take care of the drone that I am most concerned with.
Will post results
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05 F250 4x4 V10 King Ranch, 5 spd auto, FX-4
96 F150 SC 4X4 5.0 5 spd, Eddie Bauer
98 Mustang GT 4.6 5 spd ,Magnapaks
91 Mustang LX 5.0 HO Endless mods - One fun money pit!
91 Ranger 4.0 5 spd, 4" Lift
Talked to Flowmaster yesterday. The guy was a bit surprised that somebody put a super 40 on a V-10. He was chuckling a little when he said it probably sounded bad. Gave me the speach about why the V-6 and the V-10 share the same problem with getting a nice sound. He said FM always recommends a 70 series for stock applications.
I asked about a 50 series but he stayed with the 70, and noted that if I did go with a 50 to get the quietest one. He said for a V-10 the 70 series flows just as good as any other, but just tames the odd sound that comes with this motor. he said the V-10 is a great engine, just hard to make them sound good (or like a V-8 which is what everyone wants to hear).
So I studied their charts and ordered a 50 SUV. I would like a bit more sound, but this one should take care of the drone that I am most concerned with.
Will post results
So, how does the FM50 SUV sound? Did it take care of the drone?
A muffler is first supposed to improve performance. The V6 and V10 don't sound like a V8. That's a simple fact. Are you changing the muffler for the performance or the sound?
When I eventually change from stock on my 07 2V V10, I'm going to use the FM70. Why? BECAUSE THAT IS WHAT 5-STAR TUNING USES TO TUNE THEIR V10's!!!!!! Why would they use something that gave them less than the best results they can publish?
Why ask a question in this forum and then not take the advice from the two of the most successful folks working on V10's? (above previous posts re: Flowmaster and 5-Star comments).
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2007 Ford E350 4x4 (Quigley)
V10, 5R110, 4.10
V10350 - settle down a little and understand that I was asking for advice. Read the thread and decide whether you can add to the discusion or not.
Update: I had them install the 50 series SUV muffler and that toned most of the drone out. It is still there between 1500 - 1800 but it is much less. If you want to get rid of it totally I suspect that the 70 series would do the trick....just like the FM guy said.
I may add that IMHO there is a difference between a V-8 drone and a V-10 drone. For some reason I can smile the whole time my Mustang GT 4.6 is droning along, but the V-10 in my truck is simply different. Almost a little too much like and airplane or a "dreaded" V-6 with a strait thru. I am fine with a quieter good flowing muffler like the 50, or quieter yet, the 70 series.
__________________
05 F250 4x4 V10 King Ranch, 5 spd auto, FX-4
96 F150 SC 4X4 5.0 5 spd, Eddie Bauer
98 Mustang GT 4.6 5 spd ,Magnapaks
91 Mustang LX 5.0 HO Endless mods - One fun money pit!
91 Ranger 4.0 5 spd, 4" Lift
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