Overhead Cams

[BOBTAIL]

Originally Posted by SuperRSi

Bobtail,

Very nice work. Do you think any of you would be willing to share drawings of what you welded or machined so we could build something on this side of the pond? I can weld and machine in house, so in my spare time I could probably build one up in oh say four years.... It would be interesting to do it piece by piece as one had time and money for parts. It also would help to learn from the mistakes ya'll (from Texas) made. So whip up some plans and sell them to me.

Thanks,

Randy

Drawings? you realise we write with a tig torch

Really its quite simple to work out what goes where and what needs modding, No, honestly Ive been trying since we got it running to convince folks its doable for not very much cost.

We kept the stud spacing as T4 and modded the heads and camboxes.
The head oil returns go into the deep sump.

You're lucky in that you can get the bits together and mail me, we didn't have that luxury.

The crank drive was machined to adapt the T4 taper which went to 2 polo crank sprockets, just a simple top hat design.
We had to buy the bits and make them fit together ,not knowing it would work.

Just go buy your carrera 2 twin plug heads and 2 cam boxes, with cams and take some measurements.
Ill always be here for advice.

[SuperRSi]

Writing with the big blue arc, I understand. I have been writing with plasma as I can use a smaller font, and use the blue arc to edit. Let me work up some courage (and cash) and then start looking for the heads and bits.

And I will be asking lots of questions.

Thanks,
Randy

[Wally]

Originally Posted by BOBTAIL

Just go buy your carrera 2 twin plug heads and 2 cam boxes, with cams and take some measurements.
Ill always be here for advice.

Cool!, but how would you use the cams of the Carrera? I mean you cant just saw of the remaining cylinder at each end: a six cylinder has a very different cam timing. You would be out by 30 degrees or something...?
Did you have new cams made (for a 4-cylinder)??

On another note of OHC aircooled engines: did all of you know that the Citroen GSA had a 4-cylinder OHC aircooled engine? It was only 1300 cc, but still, it has been made in quite some numbers (at least in Europe) in the late seventies/ early eighties(?).
I should have got one from the salvage yard then
alter
Greetings,
W

[BOBTAIL]

Originally Posted by Wally

Cool!, but how would you use the cams of the Carrera? I mean you cant just saw of the remaining cylinder at each end: a six cylinder has a very different cam timing. You would be out by 30 degrees or something...?
Did you have new cams made (for a 4-cylinder)??

On another note of OHC aircooled engines: did all of you know that the Citroen GSA had a 4-cylinder OHC aircooled engine? It was only 1300 cc, but still, it has been made in quite some numbers (at least in Europe) in the late seventies/ early eighties(?).
I should have got one from the salvage yard then
alter
Greetings,
W

Oh yes you cut the 2 middle lobes out of the cam and I think you turn it ...I cant remember but you turn the 2 parts so many degrees and pin the parts together, to make a 4 cyl cam.
We did have Piper make some cams but they seemed not as good as the pinned stock cams.

[Wally]

Originally Posted by BOBTAIL

Oh yes you cut the 2 middle lobes out of the cam and I think you turn it ...I cant remember but you turn the 2 parts so many degrees and pin the parts together, to make a 4 cyl cam.
We did have Piper make some cams but they seemed not as good as the pinned stock cams.

Ok, but to pin two parts of a cut cam back together must be a very special procedure I'am sure!
Imagine you don't exactly know what you are doing and the cam halves come loose
Would love to see the two cam halves apart and the pins showing. Did you perhaps make a picture of the cam halves as well?

Thanks already for the insight in your mods!

Walter

[BOBTAIL]

Originally Posted by Wally

Ok, but to pin two parts of a cut cam back together must be a very special procedure I'am sure!
Imagine you don't exactly know what you are doing and the cam halves come loose
Would love to see the two cam halves apart and the pins showing. Did you perhaps make a picture of the cam halves as well?

Thanks already for the insight in your mods!

Walter

I will see if the cams are out at the moment and I will take pics.....

To be honest I haven't seen them yet myself.

[MattKab]

Even the pace of developement on this true street Beetle legend is mind blowing :agree:

Is Russ's oil pump 3rd cam lobeless? Is that even a word yet?

Best of luck to the Pro Champ and team. All in one piece for the Easter T'ball this w/end?

VT20 for the fastest Beetle? Short notice no problem, Warrington. (I'll keep wishing!) I'd pay the £35 to see this even closer

Matt

[BOBTAIL]

Originally Posted by MattKab

Even the pace of developement on this true street Beetle legend is mind blowing :agree:

Is Russ's oil pump 3rd cam lobeless? Is that even a word yet?

Best of luck to the Pro Champ and team. All in one piece for the Easter T'ball this w/end?

VT20 for the fastest Beetle? Short notice no problem, Warrington. (I'll keep wishing!) I'd pay the £35 to see this even closer

Matt

Nope I think its still a turbo grind!....what a waste.

Nope....www.centralvwaudi.com/protoruss.htm

? Not quite with you Matt.....Pink slip?.............You'd win at the moment