Bypass mod for your 360, CS, 430

I'm thinking of doing the opposite. Grafting valves onto my Capristo level 2 system so that I can turn the noise level down if needed. My brother designs/fabricates/welds race car chassis parts, headers, etc. for a living, I just need a plan. Any thoughts?

 

Buy a Tubi

G

 

I´d really like to know if this opertaion could damage anything in the car ?
What does our gurus say ?

 

My dealer did this for me on my F430 the day I took delivery, they say it only makes it louder and have not seen any ill effects from doing it.

 

About this mod. is once you have the collars on they are easily adjustable ( with the exhaust cold of course) so you can make the car sound however you like

 

I consider my stock F430 loud enough and she for sure catches enough attention. Why do you guys need a louder car, to grab extra attention!!

 

Steve R.

Thanks for posting this great, inexpensive Mod. I am a new 360 owner and was showing off the car to friends and had the engine just started. I noticed that the exhaust vapor was only coming out of two pipes. While under the car and with the wheel well covers off I saw the valves and was thinking how to change the setting. A search of the forum pulled up your post. Great Forum, gerat Mod!!! I just did this yesterday, took all of twenty minutes to do. The new sound is wonderful.

Very pleased!!!!!!!!!!!!!!!!!!!

 

That actuator is vaccum operated, if i am not mistaking. There are other ways of controling that. Being that it is the same principle as a turbo waste gate actuator, a cheap valve on the vac line will do the trick as well.
http://www.geocities.com/chmwatson/FAQs/mbc.html

 

The cost of the collers from my local hobby shop was less than $2.00. Cost of drilling inside dia. to proper size - $0.00, time to do - 20 minutes, satisfaction - priceless!!!

 

Actually Horya has a point - and its not cost.

If you used an electronic boost controller you could have a simple 3 way manetto style switch in the cabin to adjust the sound level at the press of a button. Coming home late at night and don't want to disturb the peace? Quiet mode, on the open road, loud mode. etc. Ferrari should do this on the next production car. Would be a nice feature...

 

Or if you want to do it on the cheap use fish tank valves.
Trev how is your car coming along?

 

I fitted one of the capristo remote control units on the 430 .... fantastic .... now I can control exhaust level from the cabin ( kept std exhaust )

www.capristo.de

 

Awesome post!! Thanks!!

 

Excellent.........thanks Steve.

 

Pinching the hoses tends to give you an engine dummy light on the dash. This doesn't happen when you hold it partially open?

 

Steve
Great mod looks nice and straight forward enough for that perfect tunable sound and without any draw backs that i can think of
I have not had chance to do it yet .. but i was wondering would there be sufficient adjustment on the threaded arm to allow partial opening when valve when in vacuum mode closed..

 

Anyone tried this on a Tubi, if so please post some pictures.

 

I just tried to unscrew the end from the shaft but the shaft rotated along w/ the end and the space is so cramped that I couldn't find anything to hold the shaft while I turn the end. Can someone give me a tip on a better way to unscrew the end?
Also, would by screwing the end in more achieve the same result as putting in the collar?

 

Excellent post with great info on the subject.

I love this forum!

 

+1 on the revival. I was going to do your mod to adjust the sound, and then decided to just unplug the electrical connector as described here:

http://ferrarichat.com/forum/showthread.php?t=111985&highlight=exhaust+switch

5 minutes later, and my 360 finally sounds mean at low RPM's. Not sure why anyone wouldn't want to have the full glory of all 4 pipes open. Before anyone tries Steve's adjustment mod (which I'm sure is great), do yourself a favor and just disconnect the plugs. You might find you like the sound as well as I did.

I do have to admit... one of the reasons I simply unplugged it is because I have a regular 360, where the valve is hard to get to in order to do the adjustment mod Easy to unclip, though!

 

on a stradale when you disconnect the vacuum lines the car sounds like a tug boat when it idles IMHO.

 

Is there an easy way to keep the valves CLOSED to make the car more quiet? Laguna Seca has a sound limit so I'm trying to make my CS more quiet for track days.