Exhaust system

Help my get my head around this. The F40 had a V8, which makes me think there are 8 pipes along the exhaust manifold, then it has three tail pipes; one round, two oval. What kind of crazy pretzels-playing-Twister pipeworks are in the back of this car? The handful of pictures I've seen of the engine compartment has the three tailpipes coming out of a huge capsule of a muffler, if that's even what it is.

The perfect answer is gonna need a cut-away diagram, I'm thinking...

Hey Silver!

Not sure if they have diagrams and what not, but they have a bunch of F40 specs and info and pics. Take a look. Hope it helps.

http://www.ferrarif40.dabsol.co.uk/F40/F40spec.htm#

Three pipes come out of the collector/expansion chamber, while 2 exhaust pipes (one from each side of the V8) come in.

Is it the only production car in the world with three tailpipes?

It's a twin turbo....i'm pretty sure each of the outer 2 tailpipes were for each turbo, plus a central pipe which combined the twin wastegates???

Originally posted by Worshp
It's a twin turbo....i'm pretty sure each of the outer 2 tailpipes were for each turbo, plus a central pipe which combined the twin wastegates???

Sounds like a decent theory. Do you know where it came from?

Originally posted by Silver S2000


Sounds like a decent theory. Do you know where it came from?

Only from my memory of reading an English Fast Lane mag about 15 years ago, plus the last time I opened the hood of an F40 (about 12 years ago!).

I doubt you'd see a whole lot under the hood of an F40. Check the link up there. I want that truck!!!!!!!

If you look closely, you can see the three pipes from the large "can" muffler...

We got that already:
Originally posted by MBTN
Three pipes come out of the collector/expansion chamber, while 2 exhaust pipes (one from each side of the V8) come in.
What goes on in the muffler that moves from two pipes to three?

Probably nothing, they just added the 3rd pipe for some odd reason.

Here's a pic I took of a F40 engine in Atlanta. This one is quite different, maybe different model years or something. They're gold plated as well.

I looks as if the Muffler is missing.

That looks totally different and/or heavily modified!

the pic that heep posted is what ive seen, which i thought was each bank of cylinders powers one turbo, and the exhaust from that turbo has one tailpipe, and then the other bank of cyls for the other tailpipe, and the wastegate for hte middle taillpipe

Ferrari F40, by Mark Hughes (Easily the best book I own).


..."Two Japanese water-cooled IHI RHB 53 LW Turbochargers (again, one system per bank) provide the turbocharging. The four-into-one exhause manifolds from each cylinder bank direct exhaust gases to the two turbines, which turn coaxially with centrifugal compressors. The compressed air is sent through two German Behr air-to-air heat exchangers, or intercoolers, in order that it's temperature is lowered before it reaches the inlet plenum chambers. Each of the two turbocharging systems supplies the opposite bank of cylinders; the left-hand compressor therefore, supplies the right-hand bank of cylinders, and vice versa. Lubrication and cooling for the turbochargers is incorporated into the engines main systems: the shaft linking the compressor and turbine is lubricated by engine iol under pressure, while the turbocharger bearing housing is cooled by the engine coolant. A single wastegate opens to bypass exhaust gases away from the turbines when boost pressure reaches 1.1bar, directing the excess instead through the central pipe of the three exhausts which emerge from the tail of the car"...


Sorry for the excess of text, but it makes more sense with some background information :). I'm still confused about exactly what the role if the big, muffler-looking thing plays, and the book doesn't say anything about it in that section. I'll have a bit more of a read and see what I can find.