Ferrari 412T2 engine

[xpensive]

I remember the most distinctive feature of that motor was it's 5 valve head design.

The first 3.5 liter V12 in 1989 was a 65 degree 5-valver, pitifully down on power according to Nigel Mansell, but I think they changed to 4-valves with the arrival of Goto from Honda?

[ISLAMATRON]

ISLAMATRON, aside from the technical features -wich is more important than the rest to me- I searched for this old magazine article after we were discussing here:

viewtopic.php?f=4&t=7425&start=15

I dont think FIAT was spending much money there, a 30 person engine department says it all. Always rememeber that Ferrari was in essence a racing team that sold street cars with the one and only purpose of financing its racing team.

Thats the way I would like to see F1 again. Independant teams, maybe manufacturer partnerships for specific developments or collaboration, but no more than that.

Now, lets keep this thread technical, please. [-o<

I must agree with you Belatti, and hats off to FIAT for not folding the tent during those lean Ferrari days, they were surely repaid during the dominant MS days. Could Ferrari have sold well in the market if they had pulled out of F1? An interesting question.

[Belatti]

I remember the most distinctive feature of that motor was it's 5 valve head design.

The first 3.5 liter V12 in 1989 was a 65 degree 5-valver, pitifully down on power according to Nigel Mansell, but I think they changed to 4-valves with the arrival of Goto from Honda?

Indeed.

These are the only engine specs I have found:

1995 Ferrari 412T2 Specifications

engine Type 44/1, V12
position Mid Longitudinal
valvetrain 4-Valves / Cyl
displacement 2997 cc / 182.9 cu in
power 447.4 kw / 600.0 bhp

Power seems down, I bet that was because the shift from 3.5 to 3L, but I imagine it grew up to arround 700bhp at 17.000rpm to the end of 1995.

[Carlos]

Yes ,Osamu Goto who came over from Honda went to the 4 valve. we have a thread that mentions the 5 valve version and 5 valve design.
viewtopic.php?f=4&t=455

[Scotracer]

I remember the most distinctive feature of that motor was it's 5 valve head design.

The first 3.5 liter V12 in 1989 was a 65 degree 5-valver, pitifully down on power according to Nigel Mansell, but I think they changed to 4-valves with the arrival of Goto from Honda?

Indeed.

These are the only engine specs I have found:

1995 Ferrari 412T2 Specifications

engine Type 44/1, V12
position Mid Longitudinal
valvetrain 4-Valves / Cyl
displacement 2997 cc / 182.9 cu in
power 447.4 kw / 600.0 bhp

Power seems down, I bet that was because the shift from 3.5 to 3L, but I imagine it grew up to arround 700bhp at 17.000rpm to the end of 1995.

Most of the information I've found in engines from the early-mid 90s has been erroneous. They are typically down on the "real" values. I've seen sources claim 600BHP for the 1994 Renault V10 when it has been stated many times that it was exceeding 800BHP.

[Belatti]

Yes ,Osamu Goto who came over from Honda went to the 4 valve. we have a thread that mentions the 5 valve version and 5 valve design.
viewtopic.php?f=4&t=455

Thanks Charlie!

Nice old thread that one.

Still cant find much info about the variable intake system in that V12 engine

[Carlos]

Belatti here's a list of F1 Ferrari chassis dimensions that goes back to, what 1950? This is interesting.
412T1 and 2
http://www.jursi.org/f-1/ferrari/auto_045.html
A paragraph or 2 about ferrari variable lenght in there somewhere
http://www.jursi.org/f-1/ferrari/auto_045.html
General article on production car variable lenght intakes ect
http://www.autozine.org/technical_schoo ... gine_2.htm
Another old thread on Variable Lenght.
viewtopic.php?f=3&t=1740
Pistonheads talk about it
http://www.pistonheads.com/gassing/topi ... 2&f=66&h=0

[xpensive]

There's an interesting story behind the original 3.5 liter 65 degree 5-valve V12, when the FIA wanted to limit the number of cylinders for the 1989 atmospheric season.

This had Enzo so upset he threatened to leave F1 and join CART, he even built a car, the 637 with engine and all, to prove he was serious. Eventually he got his way of course.

http://8w.forix.com/march90ca-ferrari.html

[ISLAMATRON]

He surely showed them with Ferrari's measly 11 wins in 7 seasons, while McLaren, Williams & Benneton each easily had twice or three times that amount.

[Belatti]

He surely showed them with Ferrari's measly 11 wins in 7 seasons, while McLaren, Williams & Benneton each easily had twice or three times that amount.

OK, we know you are not a Ferrari fan. Now stop messing with my thread.

[donskar]

If anyone has a complete collection of Race Car Engineering, I believe you'll find an article about this engine (or at least references to it).

ALLEGEDLY, Ferrari went from 5-valve to 4 as a result of input from Honda. Seems 5-valve heads had the potential for more HP, but very little torque.

As to the size of the engine dept, I recall one of Ferrari's drivers quoted as saying that only the head of the dept (I forget his name) was working on the engine. He emphasized that ONE man was working on developing the engine.

[jenkF1]

I do miss the openness of the rules allowing V10s,V8s and V12s running together. Maybe we could cut departments down to 30 men with more freedom on engine technologies and configurations.
W16s anyone?

[Scuderia_Russ]

Re: The video... those gear changes sound like thunder claps. Awesome! resume technical discussion.)

[Ted68]

http://www.race-cars.com/carsales/ferra ... 5806ss.htm

[Scotracer]

http://www.race-cars.com/carsales/ferra ... 5806ss.htm

I say we group together to buy an F1Technical official car

My birthday's in 2 months too [-o<