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-   -   3.0sc top and bottom end rebuild.... upgrades? (http://forums.pelicanparts.com/porsche-911-technical-forum/895920-3-0sc-top-bottom-end-rebuild-upgrades.html)

2jmotorsports 05-03-2016 07:56 AM

Drool.....

In the same stage as you with my 83 3.0 rebuild. Subscribed for reference. :)

wayner 05-03-2016 08:56 AM

I still have Pistons left ove from my rebuild when I upgraded my upgrade.
I'm now running 10.5:1 so these are available.

As for cams, I'm running carbs, and with these pistons and this cam grind, I was quite happy with midrange. THe cam came in my engine so I'm not swapping it. There may be better ones out there but my point is that even with the healthy top end range, my buddy with a 72 2.4T was EXTREMELY impressed with how strong my 3.0 was, and he never revved it beyond 4.5 grand. He said it had mor empower than his car at high rpm.

I describe mine as very strong, but at 5k rpm, all hell brakes loose until 7300 :D

CAM (not a recommendation per say, but at least a data point)
I'm really happy with my cams but am interested in feedback from those in the know
or maybe its better if i don't know any better;)

http://forums.pelicanparts.com/uploa...1454536858.jpg


Pistons. They didn't see many hours and need a good home. SAVE the pistons!
They are JE, max moritz style designed to extract the most form SC fuel injection
(I'm on carbs, I've gone 10.5:1 and twin plug heads)

http://forums.pelicanparts.com/uploa...1462294572.jpg

Nordwest 05-03-2016 09:53 AM

JW did my top end on my SC
with 20/21 cams and I like it....

Dave

Mick_D 05-03-2016 09:56 AM

You know, if you just rebuilt your motor, and you have some pistons left over.... hhmm...

xghyi 05-03-2016 12:14 PM

Check for dilivar head studs and replace them with steel. Use a magnet to check. http://alturl.com/jk6cy http://alturl.com/iak49
http://alturl.com/m6rnt

wayner 05-03-2016 12:38 PM

Quote:

Originally Posted by Mick_D (Post 9105003)
You know, if you just rebuilt your motor, and you have some pistons left over.... hhmm...

The rule with any mechanical device is that
"If you take it apart and put it together often enough, you'll end up with two!":D

( actually the engine was built to the previous owner, and then put into storage for 10 years. It was built to his specs but I had different ideas when it became mine)


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