RyanPerrella

exactly

they will only get better!

Lizard928

So now that the pump is being looked after, does anyone know who I could contact about having carbon fiber driveshafts made for the TT?

F451

If you guys can pull this off at a less then astronomical price, that would be awesome.

The Porkensioner, this new waterpump design, Carl's new LSD setup = wow.

Good luck with this and of course keep us posted. -Ed

RyanPerrella

yeah and what about Titanium springs for the suspension? CARL?

90 S-4

So now that the pump is being looked after, does anyone know who I could contact about having carbon fiber driveshafts made for the TT?
Colin J
You could start with these guys, what they do now isn't that far off from what you are asking

http://www.acpt.com/driveshaft/driveshafts.html

Glen McCartney

Been watching and reading and this is just awesome. This group of enthusiasts will keep these cars going forever. I will be doing a timing belt job over the winter, already have the Porkensioner ready to go. I may hold off on the job to see how these pumps progress. I am in if they can be made available soon enough.

Great going everyone!!!

wildwestsydney

Are you thinking about machining from billet? If so I think your looking at a $62 chunk of AL to start with. What is your price point goint to be? I think you may end up at the cost of new if you get a big enough run of them.

sidehatch

After reading this about wp,now i have another thing to worry about,imagine you spend all this time fixing tb/wp than the new pump fails wtf, this is too much it makes me want to leave the tb/wp in the car until the ****en lite turns on,i think im gona do that. and stop using my p pump line,your stealing my material

Leslie 928 S2

A pic of the Laso water pump internals...



We gave Ed three cores to work with. A brand new Laso, a Laso that appears to have been rebuilt once already, and a rebuilt Porsche unit.

This is the rebuilt Laso which somewhat explains why Laso's pumps are not rebuildable. Turns out that the internal bearing and shaft are made as a one-piece unit with the shaft serving as the internal race of the bearing, so when Ed attempted to press them apart, the bearing basically exloded. Not seen in the picture is the casting, which also fell apart into several pieces.

Tomorrow, Ed disassembles the Porsche unit we gave him, but at this point, it's looking like a billet cut housing will actually be necessary because Ed says there's no way to replace the bearing and shaft in this unit, and Porsche may have done it the same way. We'll know more tomorrow.

the flyin' scotsman

Thats interesting Leslie; wonder how the other rebuilders do it?

Leslie 928 S2

Well...928 international won't take the Laso's for rebuilding cores....and now these guys won't be taking them either. Or any of them, if the Porsche ones are the same. They think the design sucks anyway. Looks like they are headed towards billet as the only viable option.

RyanPerrella

so along with the billet pump housing, maybe we should also overbuild the shafts and whatever other internal components would need to be pulled apart for rebuilding. Lets also spend the extra bucks on these parts to make sure the entire thing is built to last.

Landseer

Ditto.

Any engineering limitations to machining billet to the relatively thin dimensions needed to tuck the whole unit behind the timing belt ? Assumption is the billet can be machined to the thin profile of the casting with at least equivalent strength.

the flyin' scotsman

Recognise the issue with Laso's but IIRC there's an outfit close to 928 INT that rebuilds the Porsche units.

None the less I'm all for the new billet design; hopefully sourcing the materials are not difficult and the manufacturing runs can be kept at cost effective level.

I may suggest that a new thread could be started to poll the folks for get a perspective on interest given that costs are contained.

RyanPerrella

what kind of price point are we talking for a new billet WP with the larger seals and bearings and all in?

Is this a $300-$350 part? I could easily pay that, but not sure how much more i would go over that. I know this is an investment and will pay dividends in the end but i would love to know what the initial outlay would be.

Could it also be designed so that the DIY'er could do the rebuild and not have to pay $125 to have it done. So maybe when we buy these new pumps, we can buy rebuild kits which include additional seals and bearings and whatever else needed so the DIYer can do the rebuilds themselves and save money on the back end?