Firing order for ferrari V8's

[Belly_up]

Hey All,

have searched google to no avail. what i am after is the firing order (and the associated cylinder numbering scheme) for any of the recent flat plane ferrari V8's, ie 355, 360, 430. There are a lot of different firing orders that would in theory work, but obviously 1 or more are optimal in terms or vibration, as well as mixture distribution (probably a non issue these days with ITB's and multipoint injection). So i figure for the sake of the little design exercise i'm conducting, rather than re-invent the wheel, i'll just borrow ferrari's nice shiny red, (and engineered at a huge cost to someone) wheel, so to speak.

So i'm sure one of you loony's know the 360's firing order off the top of your head, so fess up and share the goodness.

(interestingly it is easy to find firing orders for the the ferrari V-12's on the net, the ferrari F1 V10, obscure stuff like Panoz LM car V8's, but not for what must be now ferrari's highest selling engine)

[Belly_up]

i find it hard to belive that none of the loonies on this forum know the answer to my question. c'mon ferrari aficionado's, i know you're out there...

[nui]

just give the dealer ship a call if u need it that urgently.
im sure they can refer you to a workshop.

[Belly_up]

i don't need it that desperately, but i was pretty sure someone on here would know. Besides which, my friendly local Ferrari dealer has dissapeared and turned into a mazda dealer

[edo]

I'll ask Simon, they must know that after doing the TT one.

I have to ask why you want to know though...

[_shay]

360 firing order is 1-8-3-6-4-5-2-7

and the cylinders are aranged in this order
/\ front
5 1
6 2
7 3
8 4

[Raptor]

Slightly off topic but I understand that Ferrari have Flat-Plane cranks in their V8's as opposed to Cross-Plane cranks.



From => http://www.ukcar.com/features/tech/E...oth%208.htm#V8

[GTSBoy]

Not off topic at all considering that the original post in the thread specified flat plane cranks.

But yes...go back to the 308GTS and you will find flat plane cranks in there too.

[Nero]

I wonder how much is down to the cost of producing the crank? for low production flat plane cranks are much cheaper on simple tooling.

[GTSBoy]

Cheaper and much lighter, which for Ferrari was at least half the reason for doing it. The other half would have to be tied into the race heritage thing too.

cheers

[TonyJZX]

You probably want the service manuals for these cars... they are available somewhere because I managed to get various ones in pdf.

The PF flight of fancy was the 1UZ-FE re-engineered with flat planes.

T.

[edo]

If its cheaper & lighter then why dont Ford/chev/toyota/nissan/VW/Porsche/BMW/Merc/Audi etc do it? Not being a smart arse...serious question.

[Zac]

vibrations, is my understanding.

[Billzilla]

Flat-plane V-8 cranks sound muuuuch nicer that 90° ones.
They do have a problem with vibrations, but with some clever balancing that can be tuned out.
As it turns out, most of what's written in the reference manuals on such things is wrong - A team in Europe found it out by accident and their flat-plane engine isvery smooth because of it.

[edo]

Ive driven a 308, 348, 355 & 360 & none of them seemed to have bad vibration problems...& all sound seriously nuts over 7000rpm.

So apart from not getting that bit...is it therefore cheaper to build a cross plane crank engine & not have to do whatever to calm down the vibration, rather than building a flat plane crank engine & having to do the extra stuff???

Im seriously confused here. If its lighter (less material=less $) & cheaper to machine then I would have thought every manufacturer would be all over it. If it saved $1 per car that 10s of millions for a car company.

I guess if it costs $2 to cancel out the vibes then that is also 10s of millions...