F136 spec questions

[chano944]

I had questions about the f236, both 4.2 and 4.7. do they both have forged internals? Does anyone have the camshaft sizes (lift, duration).are these interference engines or no? I have a line on a Ferrari California intake manifold, I kno they are direct injection but i can drill and weld injector bungs. I am swapping this engine into a 80's 951. Do you think keeping the stock Maserati intake, Ferrari, or custom it setup which of those would be best for performance?

 

[Zep]

1. There is some conjecture here. 4200 Coupes have cast crankshafts, Maserati claimed that Gransports (and probably facelift coupes) had forged crankshafts. I don’t know about the 4.7, but I suspect forged.
2. No - I don’t know anyone who would know this.
3. Yes - they are interference
4. The Cali engine has a flat plane crank, the Masers have cross plane. The Cali inlet has two seperate plenums (a flat plane V8 behaves like 2 inline 4s on one crank) the Maser one is a single plenum to allow inlet pulse tuning. So I would suggest your best options are standard or custom single plenum.

 

[chano944]

1. There is some conjecture here. 4200 Coupes have cast crankshafts, Maserati claimed that Gransports (and probably facelift coupes) had forged crankshafts. I don’t know about the 4.7, but I suspect forged.
2. No - I don’t know anyone who would know this.
3. Yes - they are interference
4. The Cali engine has a flat plane crank, the Masers have cross plane. The Cali inlet has two seperate plenums (a flat plane V8 behaves like 2 inline 4s on one crank) the Maser one is a single plenum to allow inlet pulse tuning. So I would suggest your best options are standard or custom single plenum.

Do you know if all f136 engines (Ferrari & Maserati) have the same engine bellhousing bolt pattern?

 

[chano944]

And I meant to say would having an intake manifold from a Ferrari f136 be better than a Maserati? Or would a custom it set up be worth it?

1. There is some conjecture here. 4200 Coupes have cast crankshafts, Maserati claimed that Gransports (and probably facelift coupes) had forged crankshafts. I don’t know about the 4.7, but I suspect forged.
2. No - I don’t know anyone who would know this.
3. Yes - they are interference
4. The Cali engine has a flat plane crank, the Masers have cross plane. The Cali inlet has two seperate plenums (a flat plane V8 behaves like 2 inline 4s on one crank) the Maser one is a single plenum to allow inlet pulse tuning. So I would suggest your best options are standard or custom single plenum.

 

[Zep]

The block casting is the same. Pretty much everything else is different, so it is probably the same.

 

[Zep]

And I meant to say would having an intake manifold from a Ferrari f136 be better than a Maserati? Or would a custom it set up be worth it?

The Ferrari inlet probably wouldn’t work too well, for the reasons I mentioned. To be fair, it might not make that much difference. STD vs custom would come down to the design, the manifold itself isn’t too restrictive.

 

[Ewan]

Have I read this correctly - you’re going to fit the engine from a Ferrari California into the body of a Porsche 944 turbo? That’s heroic behaviour!

 

[moonmonkey]

There are some excellent Maserati documents in dropbox: https://www.dropbox.com/sh/5gx14hy9cx8jor6/AABWPA2lkFJ5Va8zv1VeoAxGa?dl=0
The document _M139 201140074-ItM-2009-EN.pdf. has engine details starting on page 271. This has the valve lift and timing for each of the Maserati F136 types

Hope this helps

 

[chano944]

I was thinking of a custom itb setup with a intake on top of the runners for a filter and im possibly going FI .

The Ferrari inlet probably wouldn’t work too well, for the reasons I mentioned. To be fair, it might not make that much difference. STD vs custom would come down to the design, the manifold itself isn’t too restrictive.

 

[Zep]

Sounds interesting.

You are definetly going to need some type of programmable management, you will need to control the sparks only using a TDC sensor and you also need a feed for each variator (one on each bank) to ensure the cam timing changes at around 5500 rpm.

This thing will be a beast when it is done!

 

[chano944]

I was planning on running ms3pro. I have seen the f430 engine with this ecu.

Sounds interesting.

You are definetly going to need some type of programmable management, you will need to control the sparks only using a TDC sensor and you also need a feed for each variator (one on each bank) to ensure the cam timing changes at around 5500 rpm.

This thing will be a beast when it is done!