Mythbuster: continuing project thread of my 1303 '75

[effvee]

Walter, inside the head, the intake; what do you use to produce that texture? I understand it's for air fuel atomization. Every time I tried to ruff up the intakes, I could never get that result

[70Turbobug]

The best surface after porting is to sandblast the port.

[Wally]

Only just saw your post...

Originally Posted by effvee

Walter, inside the head, the intake; what do you use to produce that texture? I understand it's for air fuel atomization. Every time I tried to ruff up the intakes, I could never get that result

For the record: I did not port or machine or do anything to these heads. All work was done by Jakob Spring from Danmark. I mentioned his website before iirc.

My best guess however is that he used a rolled sandpaper bit in a drill or dremel to finalize smoothing of the port, which also gave it that structure.

[Wally]

Finally found one (1, so it was cheap) front left caliper and was sooo curieus if it would fit the 350mm disks...

It did!

[Wally]

I see I need to update a bit here

Finally got the cylinders machined to fit the heads. I kept wall thickness as big as possible and ended up with almost 9mm wall in the 98mm bore!



First trial fit with heads and cylinders test-assembled:

[70Turbobug]

Looks fantastic!

[effvee]

Originally Posted by Wally

I see I need to update a bit here

Finally got the cylinders machined to fit the heads. I kept wall thickness as big as possible and ended up with almost 9mm wall in the 98mm bore!



First trial fit with heads and cylinders test-assembled:

Wow,it look fast.

[cookvw]

looking awesome as always wally!

[chug_A_bug]

Very nice.. can't wait to see it all built..

[Wally]

The (Pauter) rods and straight cam timing gear are ordered, so I should have all parts for the long block in a month or so

[effvee]

Originally Posted by Wally

The (Pauter) rods and straight cam timing gear are ordered, so I should have all parts for the long block in a month or so

Wow, didn't know, they allowed porn on this site . Very nicely done.

[Bad bug]

Originally Posted by Wally

Finally found one (1, so it was cheap) front left caliper and was sooo curieus if it would fit the 350mm disks...

It did!

Walter is that a carbon disk rotor you have there, may i ask which hat are you using with the disk.

[Bad bug]

Originally Posted by Wally

The (Pauter) rods and straight cam timing gear are ordered, so I should have all parts for the long block in a month or so

Walter is this a ortech shroud.

[Wally]

Yes, its an Orratech system. It wasn;t designed for type 1 exhaust port heads though, but thats easy.

The disk hat is original Porsche, but off-set is a few mm short.., so it doesn't work/fit at the moment and I need to adress that issue as well before I can drive again.
The off-set problem is not as simple as it sounds to be though.

On the positive side, I did find the other caliper!

[cookvw]

looking awesome wally. cant wait to see this motor running and see what it will put out for power.