Gains from going 3.0 to 3.2 but still on CIS?
 

Good day folks,

My '83 SC 3.0 engine [US spec] is being rebuilt at the moment and the guy doing the work says the barrels and pistons are ovalized and need replacing.

I could replace with Euro-spec standard 3.0 or opt for the Mahle 3.2 kit. I already have a backdated exhaust but will be sticking with CIS.

What gains can I expect from going with the 3.2 kit?

Cheers,

JB

Gains from going 3.0 to 3.2 but still on CIS?
 

Hi.
If you go with Mahle 98mm 10.3:1 cr p/c, 964 cams and euro spec fueldistributor togheter with your back dated exhaust you should be able to get 220-230ps.
It will be a good and snappy 3.2 short stroke engine with lots of torque and a super midrange.


Sent from my iPhone using Tapatalk

Cheers Litle brother, that sounds like some good gains.

3.2 cylinders and pistons are cheaper than 3.0 so an added bonus

you might consider going with frankencis to manage the mixture and ignition to get even more out of it.

Have you also considered going to the larger '78-'79 / Euro CIS?

Here's the p/c kit that will be the best choice:

https://www.fvd.net/no-en/10010303200/mahle-32-l-piston-and-cylinder-set-1031-98-mm-big-bore-for-911-30-l.html


Sent from my iPad using Tapatalk

Why not go for a 3.3 with p/c from LN Engineering?

Cheaper than FVD and 3% bigger bore = 3% more power (isch)