86mm Pistons and Cylinders: What's the point?

[tb912]

I have a few direct questions about the 86mm Pistons and cylinder kits out there. supposedly they bore it out to 1750cc.

-Is it true that they are simply bolt on with no modification required?

-Supposing I bolt a set on to my 912, would I find a noticeable increase in power? torque?

-Does anyone here have specs of a motor with this mod?

-Would I need a more aggressive cam to fully utilize the higher displacement?

-Bigger carbs?

-is the 1750cc displacement as reliable as the normal 1600cc?

I hope to get all these questions cleared up! Thanks a lot!

[djdsc]

I have a few direct questions about the 86mm Pistons and cylinder kits out there. supposedly they bore it out to 1750cc.

-Is it true that they are simply bolt on with no modification required?

Yes. 356's and VW have been doing this since the '60's

-Supposing I bolt a set on to my 912, would I find a noticeable increase in power? torque?

Noticeable? Perhaps, depending on your overall setup.

-Does anyone here have specs of a motor with this mod?

Search around.

-Would I need a more aggressive cam to fully utilize the higher displacement?

This is often done, yes but not necessary.

-Bigger carbs?

Generally just re-jetting

-is the 1750cc displacement as reliable as the normal 1600cc?

For many, many years and miles. Don't use crap parts and short cut the total rebuild process.