Aircooled VW South Africa

85,5mm sleeve diameter is 1600cc i beleve
83.5mm sleeve diameter is 1500cc i beleve
are these above ones right?
what is the sleeve diameters for?
1100cc
1200cc
1300cc

1131cc - Bore 75mm, stroke 64mm (early fifties "25hp")

1192cc - Bore 77mm, stroke 64mm (late fifties with gen pedestal part of case,often mistakenly called "1100")

1192cc- Bore 77mm, stroke 64mm (early sixties with separate gen pedestal)

1285cc- Bore 77mm, stroke 69mm

1493cc- Bore 83mm, stroke 69mm

1584cc- Bore 85.5mm, stroke 69mm

1679cc- Bore 90mm, stroke 66mm (type 4)

1795cc- Bore 93mm, stroke 66mm (type 4)

1971cc- Bore 94mm, stroke 71mm (type 4)

Oversize pistons are 0.5mm and 1mm more than standard size.

Original beetle was 986cc, 70mm bore and 64mm stroke.

Thanks Dawie

This will help me alot.

There is also 87mm oversize on 1600s giving 1641cc ie 1.5mm oversize and if you are adventurous there is toyota pistons at 88mm which gives 1679
etc etc etc

77mm bore pods for the fixed genie pedistal and the loose ones, are they inter changeble?

Nope the 36 hose had smaller spigots in the head I suppose some types of cylinder can be modified.
Armand.

interesting

IMPI wrote:There is also 87mm oversize on 1600s giving 1641cc ie 1.5mm oversize and if you are adventurous there is toyota pistons at 88mm which gives 1679
etc etc etc

That Toyota piston modification sounds rather interesting. Any idea of how much power one can make out of a 1679 engine

Blitzkrieg_Beetle wrote:

IMPI wrote:There is also 87mm oversize on 1600s giving 1641cc ie 1.5mm oversize and if you are adventurous there is toyota pistons at 88mm which gives 1679
etc etc etc

That Toyota piston modification sounds rather interesting. Any idea of how much power one can make out of a 1679 engine

dont even think about it. Toyota piston is heavier than stock (by a lot) and the cylinder is honed out so far it cant maintain its shape properly... if you want to do that, get the "machine in" 88mm kit that come with pistons and has a properly thick cylinder wall. But for the same price you can build a 1776 with thick walled sleeves

Thanks for the input Tony Z.Thought that it would make a nice budget combo, as those Toyota pistons can be had for free

3 options.

1) cheap
2) quality
3) performance

choose any 2, you cant have 3

I've heard that one before and it's most definitely true