Aircooled VW South Africa

Now, I dont really do this for customers, but as this customer is a good friend of mine I decided to bend the rules a bit.

This is the car the engine is going into:
We decided to build a small'ish capacity engine for reliability. So ended up with 69mm stroke with 94mm pistons. 1914cc.

Cb performance supplied us with all the goodies as usual

Wiseco 94mm short lightweight pistons with mahle barrels Straight cut camshaft gears Scat c55 camshaft with 1.1:1 cromoly rockers and solid shafts CB performance 69mm cromoly forged counter weighted crankshaft with H-beam connecting rods Auto linea ally bubble casing machined for 94mm barrels and 8mm cylinder head studs CB performance dry sump pump will take care of the engine oiling. A circuit racer absolutely depends on this.

I am sooo Jealous, thats going to be a killer motor!

What should one's bank manager expect to pay for a build like this? (in parts)

The crankshaft, flywheel and pressure plate was sent in for balancing whilst the barrels were sent in to be shortened for the correct deck height of 1,2mm

Here's the master (aka dad) trial assembling the crankshaft to check for clearances The cromoly cylinder head studs needed to be shortened as the engine will be narrower than a std beetle engine due to the short piston and short stroke setup Trial assembly of the engine block. The block needs some mods for the oil pump fittings to clear and the smaller crank pulley The barrels back from engineering

Crankshaft back from balancing and ready for assembly
Matched weight connecting rods with some KS big end bearings ARP connecting rod bolts Crankshaft assembled Engine casing all clean and ready for a fresh crankshaft and cam to go in Scat c55 camshaft allready dialed in from the trial assembly. These cams are excellent. It makes huge amounts of torque and holds the power to 7000rpm at highveld altitude

With the bottom end assembled to this point we now wait for the cylinder heads to arrive. The cylinder heads are a set of CB performance 044 mini wedge cnc port with matching big beef intake manifolds. The carbs are 44idf webers that the customer supplied already.

YvaneS wrote:I am sooo Jealous, thats going to be a killer motor!

What should one's bank manager expect to pay for a build like this? (in parts)

This engine should make around 90kw on the wheels at highveld altitude and run forever if treated right.

We have used some, be it little parts from his old engine. The new parts bought so far is:
CB ally case
CB 69mm crank
Mahle barrels
Wiseco pistons
Straight cut cam gears
Engine case kit
Cyl head studs
H-beam rods
All bearings
Cool tin
Bolt on valve covers
Gasket set
Remote oil cooler fitting
Complete set of carburetor jets
Oil strainer kit
Oil pump
scat camshaft
Pushrods
Pushrod tubes

These parts came out to about R45k landed. The cylinder heads and manifolds should come out to around R15k shipped.

It's not cheap to build an engine with the rand / $$ as it is right now

The car just came back from the panel shop where the fender flares were removed and given a fresh coat of paint. The next step is for them to sort out the gear ratios before the car will come to me for fitment of the engine, dry sump tank, oil coolers and oil lines.

Very nice indeed.

Q: If the deck height is lowered, while increasing the compression ratio, doesn't it decrease the cc?

Q: How much narrower will the engine be?

The stoke and piston size is what makes up the cylinder volume. 94mm bore x 69mm stroke = 1914cc
It's about 30mm narrower than a std beetle engine.

The piston pin to top height on these pistons are shorter than on std beetle pistons. Thus turning lower in the cylinders. The deck height has been machined for 1,2mm.

On Mahle pistons you get an a and b type. The A type has a 39.6mm piston pin to top height (compression height) and the B type piston a 34mm piston pin to top height.
The wiseco pistons have an even shorter piston pin to top height than the B type Mahle

Yes, I did that calculation a while back. (My beach buggy runs a 1914cc with 041 heads and 2 36 IDFs). I came up with 478.5cc...

So I remembered there are 4 pots... Felt much better after that...

I haven't got my head around the deck height yet, gee kans. I'll read up on it when I get the chance...

These parts came out to about R45k landed. The cylinder heads and manifolds should come out to around R15k shipped.

Damn thats alot.

Great build though, keep it up, and keep posting pics!

It is a lot of money... but cry once and enjoy it forever

4agedub wrote:It is a lot of money... but cry once and enjoy it forever

That's a brilliant way of thinking about it, I'm saving for a decent build already..