F575 sport exhaust manifolds - Page 21 - Ferrari Life
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post #401 of 410 Old 07-18-2016, 06:12 AM Thread Starter
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Hello,
as i wrote yesterday by phone, i have completed and installed my new muffler and my internal design was a successful!
I'm so happy because i spent more time to thinking how do a good silencer without "absorbtion material" and with less counterpressure ....
Result is fantastic, low sound level at valve closed, little bit less in respect to the HGTC, and very hig level at valve opened ... But in every case sound is metallic and also at valve opened are not resonation inside a car !!!

Follow two videos, in the first half part of the first video valves are closed and controlled by ECU, in the second part are fully manual opened.



About the construction procedure that i thought, i need to do modifications in order to make easy the welding and in order to improve the aesthetics ....
I used thin SS plates 0.8 mm for the body and internal and 0.6 mm for the external heat shield but is difficult to weld .. the 0.8 mm after welding is deformed and 0.6 mm is very difficult to weld over the 0.8 ....
However at the end i done a complete heat shield in external to the muffler composed by ceramic firbe + 0.6 mm polished SS.

My Muffler weight is 6.7 Kg (My 3D CAD weight = 6.9 Kg)
HGTC muffler that i removed is 9.7 Kg

I think after modified weight will go up of approx 1 Kg ....

Follow some pictures ...
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Fabio

PRESENT: 575 F1 HGTC ROSSO CORSA 2004' - MB CLS 350 CGI 2007'
PAST: 550 ROSSO CORSA 1998' - MB CLK 240 2002'

Last edited by 550_Maranello; 07-18-2016 at 08:07 AM.
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post #402 of 410 Old 07-18-2016, 10:46 AM
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Fabio- She sounds great. One of the reasons for the ridges on the OEM mufflers is to provide some additional stiffness to the muffler can, but with thicker metal, probably not an issue. Those tailpipes are really beautiful and the double wall design keeps the outer piece protected from heat so it discolors less. So now you have done a complete exhaust system for the 550 and 575M. Have to let us know how much the whole set-up costs. I doubt the concourse judges could tell the system from and OEM one without a mirror on a stick looking for parts numbers.

Notice on the OEM muffler, the end caps fit over the cans, making them a bit easier to weld and seal. On yours the opposite, but a press to make the end caps would be very expensive.

Taz
Terry Phillips

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post #403 of 410 Old 07-19-2016, 02:57 AM Thread Starter
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Originally Posted by tazandjan View Post
Fabio- She sounds great. One of the reasons for the ridges on the OEM mufflers is to provide some additional stiffness to the muffler can, but with thicker metal, probably not an issue. Those tailpipes are really beautiful and the double wall design keeps the outer piece protected from heat so it discolors less. So now you have done a complete exhaust system for the 550 and 575M. Have to let us know how much the whole set-up costs. I doubt the concourse judges could tell the system from and OEM one without a mirror on a stick looking for parts numbers.

Notice on the OEM muffler, the end caps fit over the cans, making them a bit easier to weld and seal. On yours the opposite, but a press to make the end caps would be very expensive.

Hi Terry,

thanks a lot....

However i done some molds for done the end caps and the supports, under my hydraulic press .... the molds are little bit expensive but is the only way for work good...
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Fabio

PRESENT: 575 F1 HGTC ROSSO CORSA 2004' - MB CLS 350 CGI 2007'
PAST: 550 ROSSO CORSA 1998' - MB CLK 240 2002'
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post #404 of 410 Old 07-19-2016, 10:38 AM
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Fabio- Now I see how it works.

Taz
Terry Phillips

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 #405 of 410 Old 07-19-2016, 02:39 PM
 
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nice job Sir, really love the progress here

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post #406 of 410 Old 07-25-2016, 12:22 AM
 
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Hi Fabio

I am in the process of talking with a very trusted ecu tuner here in the UK about using a set of 612 spec Bosch motronic ecu on a 575 engine. I cannot find any key differences between the engines in the SuperAmerica/612 spec and the 575 spec other than ecu, which can be the only thing that adds 30 odd bhp to the base engine alone.

Pairs of 612 ecu are inexpensive and readily available and the tuner can alter the internal settings of the ecu to suit Manual/F1 and delete elements such as rear lambda probes etc in order to fine tune it to the needs of each particular engine.

I will keep you updated, but with a pair of these ecu with your headers and exhaust they should all together produce a healthy, increase in bhp and torque without stress to the engine.
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post #407 of 410 Old 07-25-2016, 03:05 AM Thread Starter
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nice job Sir, really love the progress here

Hello wayne,
thanks so much ... now i'm in progress with the improvement and after holidays i will do the mufflers without defects ... i hope !!

Best regards

Fabio

PRESENT: 575 F1 HGTC ROSSO CORSA 2004' - MB CLS 350 CGI 2007'
PAST: 550 ROSSO CORSA 1998' - MB CLK 240 2002'
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post #408 of 410 Old 07-25-2016, 03:17 AM Thread Starter
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Originally Posted by PAUL 500 View Post
Hi Fabio

I am in the process of talking with a very trusted ecu tuner here in the UK about using a set of 612 spec Bosch motronic ecu on a 575 engine. I cannot find any key differences between the engines in the SuperAmerica/612 spec and the 575 spec other than ecu, which can be the only thing that adds 30 odd bhp to the base engine alone.

Pairs of 612 ecu are inexpensive and readily available and the tuner can alter the internal settings of the ecu to suit Manual/F1 and delete elements such as rear lambda probes etc in order to fine tune it to the needs of each particular engine.

I will keep you updated, but with a pair of these ecu with your headers and exhaust they should all together produce a healthy, increase in bhp and torque without stress to the engine.

Hi Paul,

i think the 612 ECU are very similar to the 575 (perhaps equal), difference between 612 and 575, if i remeber correct, are the compression ratio and the suction manifold, i not remember other differences because the camshafts are the same, the SA have different camshafts.
Taz can help us about it...

However your tuner can erase the Bosch motronic ecu of 612 and upload the 575 software and/or modify the existent ....

The Maranello's engines are strong, havein original low specific power (575 = 89.5 HP/liter) and are able to support more horsepower without problems ...

Best Regards

Fabio

PRESENT: 575 F1 HGTC ROSSO CORSA 2004' - MB CLS 350 CGI 2007'
PAST: 550 ROSSO CORSA 1998' - MB CLK 240 2002'
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post #409 of 410 Old 08-16-2016, 02:49 AM
 
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Hi Fabio,

I was following your threads on FChat but it seems they're all gone now. I'm glad you're still posting here. This exhaust system has been very interesting to follow.

Will this system work for the 550 as well?

I am looking to purchase an exhaust system for my 550 soon but would like to see where you go with this project.

Saluti!
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post #410 of 410 Old 08-16-2016, 05:17 AM Thread Starter
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Quote:
Originally Posted by nin10do View Post
Hi Fabio,

I was following your threads on FChat but it seems they're all gone now. I'm glad you're still posting here. This exhaust system has been very interesting to follow.

Will this system work for the 550 as well?

I am looking to purchase an exhaust system for my 550 soon but would like to see where you go with this project.

Saluti!
Ciao Nin,

thanks for your request ...

Yes the system is well also for the 550.
I will send PM.

Fabio

PRESENT: 575 F1 HGTC ROSSO CORSA 2004' - MB CLS 350 CGI 2007'
PAST: 550 ROSSO CORSA 1998' - MB CLK 240 2002'
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