Euro Carrera 3.0 specifications?

[blue72s]

What were the original specifications of the Euro Carrera 3.0?

Was the entire body fully galvanised?; Were the rear flares the same as '73RS or SC/3.2? What brake rotors and calipers did it have? 15 inch or 16 inch wheels?; What material were the valve guides (early copper alloy or later silicone bronze)?, Was the transmission casing made of magnesium or later aluminum?; 4 or 5 speed?; 1 or 2 batteries? etc etc

TIA

[pohsche]

What were the original specifications of the Euro Carrera 3.0?

Was the entire body fully galvanised?; Were the rear flares the same as '73RS or SC/3.2? What brake rotors and calipers did it have? 15 inch or 16 inch wheels?; What material were the valve guides (early copper alloy or later silicone bronze)?, Was the transmission casing made of magnesium or later aluminum?; 4 or 5 speed?; 1 or 2 batteries? etc etc

1. Fully Galvanized
2.SC style flares on back
3. 15 inch or 16inch depending on order
4.engine was basically an SC motor with slightly "hotter" cams and different valve timing
5.5-spd aluminum 915
6. 1 battery
7. pop out windows on coupes
8. snorkel headlight washers
9. I believe slightly thicker sway bars
10.brakes are m caliper like SC's
Let Noah chime in, as he knows more than anybody I have talked to about Carrera 3's. I do have the factory sales brochure, but it is in German.

Alan Poh
'77 Carrera 3.0

[ChrisBennet]

A few more crumbs...

Internally the motor was different from an SC. It had a 2.7 crank with a 6 bolt flywheel vs the SC's 9 bolt flywheel.

The camshafts were the same part number as the '78-'81 SC.

The 3 C3 transmissions I've worked on were magnesium but I think Noah has an aluminum one.

-Chris

[GeorgeK]

The engine block was not the SC block (930 3.3), but the 930 3.0 block, which is much lighter.
The popout windows were only on the '76, not the '77
The Magnesium gearbox was slowly phased out during the 2 years production run.
The '76 did not have the power assist brakes, or the clutch helper spring.

[blue72s]

Originally posted by GeorgeK
The engine block was not the SC block (930 3.3), but the 930 3.0 block, which is much lighter.

What's the weight difference between 930 3.0 block and the 2.7 magnesium block?

The Magnesium gearbox was slowly phased out during the 2 years production run.

I'm glad!



Now, what about brake rotors? Same as 73RS?

[GeorgeK]

I don't think the redline is 7000 rpm, rather 6800. Anything close to 7000 with CIS cams is a bent valve waiting to happen.
I know of a couple Mg gearboxes pushing 200K miles without casing trouble, the worries are overrated.
I have no idea of the weight difference between a 2.7 mag case and a 3.o alu. case.

[GeorgeK]

Noah, stupid question: have you indeed seen 7K on your car? mine used to cut at 6800. The new engine I never use above 6500, as the cams were retimed in favor of lower rev power.

[GeorgeK]

The reason I am asking is because I thought like you did, and I asked my mechanic to "give me back" the 200 rpm I was missing. He was adamant that I would destroy the engine if I flirted with 7K for any time with that engine. That is why he adjusted the cams a little differently on the new engine, giving me a good pull from 3500 instead of 4000 like the old (bombed) engine.

[AZ1977911]

Hi All,

Mine hits 7K fairly often... Rev limiter functions only occasionally. My tach could be off. 40K miles and no serious problem since I've owned it. It aint stock though. (3.2 Big Bore kit)

Greg
77 Carrera 3

[Bill Verburg]

What were the original specifications of the Euro Carrera 3.0?

Depends on the year '76 or '77
The other responses have covered the bases but I'll just chime in any way

Was the entire body fully galvanised?;

Except for the roof on early '76

Were the rear flares the same as '73RS or SC/3.2?

SC

What brake rotors and calipers did it have?

282.5x20 & 290x20 same as 2.7 thru SC

What material were the valve guides (early copper alloy or later silicone bronze)?

Cu alloy

Was the transmission casing made of magnesium or later aluminum?;

My '76 was Mg. the Al was phased in later in '77

4 or 5 speed?

4 spd was standard 5 optional

1 battery most of the car was as on the later SCs

The redline starts at 6800

[dd74]

Hmmm...I once heard the typical 911 valvetrain is good up to 7300 RPM. I'm not willing to try, though.

[pohsche]

Same as Noah, with pop-out windows and aluminum gear box.

Alan Poh
'77 Carrera 3.0 #499

[Hald]

Pop-out windows & magnesium gear box... #720

[OZCarrera3]

How can I tell what type of box I have? From Noah's post I should have a mag box.

Mine has pop-out windows, chassis # 00825 and was built 08/76.

[OZCarrera3]

Thanks Noah. Hey, why would my chassis number be higher than you guys, yet earlier build date? Note, I have had my engine and chassis numbers verified Porsche Australia.

Are you guys quoting a year model (i.e. built '76 for '77 year model)?

[AZ1977911]

Noah,

Mine was 9117610035, registered 1977 USA (federalized) 19&& as well.
As per COA...

Greg

[AZ1977911]

Ooops! 1977... FWIW not 19&&

[Jubbie]

Odd on the Na filled valves. My 77' C3 engine had the dots in the middle of the exhaust valves, so I figure that they must be sodium filled. The PO may have changed them out. What did the 930 of the same vintage use exhaust valve wise?

[OZCarrera3]

Speaking of the magnesium cased gearboxes, I've been told that they can have problems on the track due to heat buildup etc. Has anyone had a failure? What happened? Is it a case of if you use them on the track "it will happen" or "may happen"?

[Bill Verburg]

Odd on the Na filled valves. My 77' C3 engine had the dots in the middle of the exhaust valves, so I figure that they must be sodium filled. The PO may have changed them out. What did the 930 of the same vintage use exhaust valve wise?

The C3 did not have Na filled valves on either intake or exhaust. The 930 from that period did have Na in the exhausts.