360 Stock muffler without valve - Ferrari Life
 
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post #1 of 14 Old 01-14-2013, 08:28 PM Thread Starter
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Stock muffler without valve

Can anyone give me some idea regarding the sound level of the stock exhaust after bypassing the valve. I will be reinstall the stock exhaust but wanted to retain the exist tip, however since it does not have the sound valve just wanted to know how much louder it will become

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post #2 of 14 Old 01-15-2013, 01:00 AM
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In my 360 valves are permanently open. It sounds far better at low rpms, at higher no difference. It also makes the car a bit more responsive at throttle. It is a must for the 360 model.
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post #3 of 14 Old 01-15-2013, 02:07 AM Thread Starter
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thx mike. but comparing with the valve closed, it is only slightly louder during idle? what about during cruising any big difference. I am removing the current aftermarket exhaust set up since mine is a spider, and proved to be too loud. I will be reinstalling the stock muffler but wanted to retain the valveless tip as it looks better. hopefully will make it sound sporty but not intrusive.......
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post #4 of 14 Old 01-15-2013, 03:00 AM
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With valves open it is a bit louder than stock until 3500 rpm, regardless the speed. It sounds good without annoying you at all. The next step would be a Tubi or a Capristo 1 or 2
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post #5 of 14 Old 01-15-2013, 11:29 AM
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Try it and if it is too loud, you can always hook up the stock tips and bypass valves. You could also try the aftermarket exhaust and the OEM tips. Mix and match on exhaust parts works well on a lot of Ferraris.

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post #6 of 14 Old 01-16-2013, 10:48 PM
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Juat make sure that you close the vacum lines at the end, so you dont get a CEL.
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post #7 of 14 Old 03-20-2013, 06:40 PM
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Sorry for resurrecting a semi-dead post, but I just got a Stradale exhaust on my 360 (my Capristo is having problems, and warranty was not honored). I definitely want the valves open (or controllable at least), as the sound at low RPMs is not thrilling at all. Since the exhaust already has valves.. how do I keep them open? And what are the vacuum lines you speak of (is it needed if I just keep it open?)

Thanks
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post #8 of 14 Old 03-20-2013, 08:48 PM
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If you go to ferraridatabase.com, you can download a 360 workshop manual and there is a pretty good description of how the bypass valves work. There is a vacuum accumulator that feeds several systems, one of which is the exhaust bypass solenoids and then to the pneumatic exhaust valves. Disconnecting those vacuum lines (and plugging them to prevent vacuum loss) will open the valves permanently because they are spring loaded to the open position.

If you look at this parts catalog page from Ricambi's online catalog, you can see the vacuum accumulator and the vacuum lines running to the bypass solenoids and then to the pneumatic valves. Disconnecting the lines at the pneumatic valves gives you full-time open valves.

Other options are to install a Capristo remote for the solenoids or to have a dealer install a hard wired switch that does the same thing. Several threads on the Capristo remote here. One below.

http://www.ferrarilife.com/forums/mo...e-control.html
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Last edited by tazandjan; 03-21-2013 at 12:00 PM.
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post #9 of 14 Old 03-21-2013, 12:15 AM
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Awesome! Thank you!
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post #10 of 14 Old 03-21-2013, 07:36 PM
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So I see where the vacuum line meets the exhaust valve, this is 18 -> 29 (which I believe is the exhaust solenoid?)


Seeing that makes me think I can't disconnect that piece from the vacuum, so I looked over the piece that plugs into the valve


Is it as simple as plugging that (and securing it so it doesn't move around)? Would not the back pressure from the vacuum keep other pieces (if there are other) from working, or is that ok? If that's the case, it seems easy, I can probably plug that with a wooden tack, and easily remove it / plug back in, if I need to. Save me some money on the remote (until I decide to pick one up).
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post #11 of 14 Old 03-21-2013, 09:37 PM
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Will work fine that way, too. Cap the end of the solenoid inlet, too, so groad does not get into the solonoid in case you want to reverse or install a remote switch.

Taz
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post #12 of 14 Old 03-21-2013, 10:45 PM
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Cap the end of the solenoid inlet? Is that not what I had in my hand (picture 2)? I wasn't planning on removing that line from the solenoid (in picture 1). I figured to just keep the line there, and just tie it up so it doesn't move around. Are you referring to something else? Please forgive my ignorance, new to this. Thanks
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post #13 of 14 Old 03-22-2013, 09:44 AM
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Not sure what you are asking. If you disconnect the vacuum hoses at the pneumatic valve on the exhaust pipes, plug the hoses and tie out of the way. If you disconnect the vacuum hoses at the bypass solenoid inlets, plug the hoses and cap the solenoid inlets. If you disconnect the vacuum hose at the bypass solenoid outlets, cap the solenoid outlets and tie the vacuum hoses out of the way or remove completely and save, capping the pneumatic valve inlets, too. All of those will work, so just pick the one easiest to reach.

Taz
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Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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post #14 of 14 Old 03-22-2013, 11:09 AM
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Perfect. Thanks for the explanation/options, tazandjan!
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