Granturismo why so cheap?

I do both, depending on the situation. If I'm driving normally, I drive it like a three pedal car with a lift between shifts. It makes for slower shifts (since the ECU is expecting to be the one who decides how much gas to give), but it seems to be smoother that way. When driving aggressively I keep my foot planted and shift only at high rpm. Faster and crisper shifts that way. The ECU is getting consistent instructions too.

From what I was told by someone on the F/M design team (for my car and quite probably yours), the ECU gets "confused" when you take your foot off of the pedal to lift, since you upshifted because you are accelerating but lifting normally means you want to decelerate. I believe that not lifting is effective at mid to high rpms, but I'm not a fan of it when shifting at low rpms. As always, it comes down to developing a feel for the car. Also, full disclosure, I always drive in Sport mode. I can't stand the slow shifts in regular mode. I know it's supposed to be harder on your clutch (hard shifts are analogous to hard braking in terms of wear on the friction material), but I enjoy the car more that way.


PS - I've heard people talk about the ECU learning your driving style, so slow city driving results in learned slower shifting. This is not true. In the words of the F/M design team guy, "the ECU, she don't remember naaaathing!" Good thing too. Otherwise we'd all be forced to drive like maniacs to keep our ECUs edgy.

 

It's about 140 mm taller (5.5 inches)

 

Thrust bearing are at different positions in the blocks but can be moved. Camshaft bearing diameter is different so cams can not be swapped between M & F but complete heads with cams can be swapped. Ports are the same size and same flow in both. Different cams in the 4.2L with about 300 degrees duration and different exhaust manifolds will probably make another 80-100 hp at 8500 rpm. Flat plane or cross plane crank, no problem.

 

Out of curiosity, is there a performance cam or cam/heads option for the 4.7l?

 

Granturismo and 911 are very different animals. The GT really shows its size and weight when you do want to have fun in the twisties where as the 911 only feels smaller and lighter as you speed up. I would suggest you drive both before deciding.

I had a 911 for 6 years and 60.000 miles and have driven the Gran Turismo S extensively. I love the car but it's not a sportscar as a 911.

I am actually thinking of one as the rear seats are much more kid friendly.

 

Those look great.

 

This is an important point to not forget. The GranTurismo is a grand touring car. It is not a purpose built sports car like the 911. Maserati is in the business of building very fine GT cars and sedans. With the sole exception of the MC12, they have not built a proper sports car for the North American market in decades.

 

When did they bring bring an all out sports car here? They've been selling GT cars here since the late 1950s. Still nice and fun cars!

 

You may be able to bolt the Ferrari heads & cams onto the Maserati block, but you'd run into expensive trouble. The flat plane crank cams won't work with the cross-plane Maserati crank. You will need to swap that as well.

At that point you might just as well stick the Maser cam-covers on the Ferrari engine and put it in a car.

This mixing and matching within different generations of the same basic engine can be a lot of fun.

Best,

Jack.

 

A new flat plane crank is just under $2K in Europe. New heads are about the same each. Cams about $400/each. What I dont get is why a used F430 Engine cost $40K when I can buy new parts and build a fresh one for much less. Used Maserati motors are priced more correct. I like the traditional V8 sound but a lightweight flat plane crank (less than 40 lbs) give sharper throttle response.

It's possible to rebuild a 4.2L to get 4.7L but it cost less to buy a used 4.7L unless you want a dry sump 4.7L which never came from the factory.

 

You need to regrind your original cams. The cam lobes clear the heads by a hair thickness so a regrind with smaller base circle is the only way. The hydraulic tappets can work with maybe another 0.5 mm (0.020") Orignal cams are 261° intake and 221° exhaust with 10 mm lift. When I flowtested the heads, the data show they dont need more valve lift just more duration. The engine is choked with only 221° on the exhaust cam. But on the other hand you can drive 30 mph in sixth gear and just floor it all the way to top speed. From an engineering wiew the F136 is an excellent motor.

 

There isn't a combination of heads/cams that can be purchased NIB?

 

Not that I know of. Everything will be custom made. 4.2L heads flow enough to get close to 600 hp at 8800 rpm. Cams and exhaust manifolds are the first restrictions. Add (F430 part # 191393) fuel injectors and a new SW for the Bosch ME7 ECU. The intake manifold runners will need to be shortened inside and a larger throttle body area will also be necessary.

Just to explain in broad terms more hp in normal aspirated form comes from more rpm. If 400hp@7000rpm is original, 500hp@7000rpm is not possible. It would be more like 500hp@8500rpm unless a turbo- or supercharger is added.

(I need a life)

 

Contrary to what Piper said, and no disrespect intended, but my 2008 612 HGT2 interior blows away my Mas 2009 F1 GTS
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Also, the Maserati in F1 mode is quite nimble and quick - in my view more nimble then the 612 - of course the 612 torque is much better - the 612 is one of my all time favorite Ferraris

 

the Mas
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Your seats are nicer than mine, that's part of it. Beyond that, I love the color of your interior. I don't like that mine is blue and tan, would rather it was all tan. So it's not just that I have a base interior in my 612, but it's also an issue of personal preference. The interior in my GT Sport is better in both regards. Everything is best possible for my tastes, and the colors are also best possible for my tastes. I like your 612 interior more than my own and could be that you'd like my GT interior more than your own My next step in f cars is probably to find a 612 like yours with an interior like yours, or even better with the quilted door panels. At that point I'll not be able to choose which one I like more.

Yup. I'm still getting used to the handling of the GT. The 612 steering is so responsive that at first it seemed more nimble than the GT, but I'm finding the more I get used to the GT handling, it's just different, heavier, just as nimble or more but takes a bit more effort.

Now if I just had the Scud in my collection so we could compare notes there, I'd be complete . Staring at ads lately of Stradales wishing I had the extra garage space. Love your Scuderia.

 

Thanks - we have run the Mas on the track quite a bit when first got it in 2009 so maybe we are a little more used to muscling it around - it is now retired from the track after replacing tires, rotors, brake pads and the front wrap and Maserati service - to the tune of $9,000 after two weekends - yes we were aggressive but we know what it will do now - the two cars in the barn - love them both
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Piper - are u going to Road America next week? I have shipped the 612 and the Scud for the track - it will be a blast - Adam Andretti and his beautiful wife will be with us as our guests - can't get a better coach then that - I teach and take his wife fly fishing and he teaches my wife and I driving - been doing it for 7 years

 

Just Googled it. Looks like a great time. Alas, not going that far from home right now. I'm doing the supercars thing in York, PA, Balt GP, drive coming up perhaps through VA, but I have yet to ship my car somewhere for me to arrive. I've only been a ferrari owner for four years, year one in complete isolation. I'm expanding my horizons. I'll start thinking about national events eventually I expect, but with the kids and business still needing me constantly, I'm not there yet.

 

The Maserati GTS F1 Cambiocorsa is an amazing car, the exhaust note is of the gods...399 produced, same clutch/gearbox as the 599.
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Exhaust note on the new one in my garage is sweeter to me in sport than any of the three Ferrari's I've owned before or after modding two of them. Just right.

 

You and I are in a totally different phase in life - my kids are 41 to 23 - all on their own - I have been fully retarded for 8 years and loving it - you are doing well - I never could have afforded your cars when I was ur age

 

You are right - what a great car - I can hear my wife coming up the mountain long before see gets here
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I'm happy with how things are going, but I'm a late bloomer re kids and not as young as you might imagine. No kids first marriage, trouble getting pregnant second. I'll be 47 this year. Old enough to be my son's grandfather. The tougher struggle for me is getting fit to be the best dad I can be. But along those lines, going from 2 seat sports cars to GT's, conscious decision to again be the best dad I can be. It's a joy to be on a family trips in a car like these and see the kids snuggled up in the back. The seats in these cars are super comfy for little kids.