[winders]

Funny. My only point all along has been that the 993 Twin Turbo heads studs are a solid viable option for those looking for head studs that work and work well. I have not negatively criticized any head studs in all of my posts. Empirical data is on my side on this one. Yet it is okay for certain people to tell me my thoughts are worth nothing since I have no experience building Porsche air-cooled engines.

Then you come on and say:

Chill out and relax about someone's experience that doesn't jive with what you "learned" online. Do some testing yourself, then you can actually form a valuable "opinion".

The idea that "valuable" knowledge can only be gained through experience is ludicrous. I don't need to build Porsche air-cooled engines to obtain valuable knowledge about the parts used to build those engines. I don't need to do testing. I can gain knowledge from the experience of others.

Let me tell you a story:

When I decided to build a high output race engine for a PCA GT3 class car, I new I needed help. I needed to find a person to design the engine for me. The information I needed to put together the kind of engine I wanted to build was not available for free on the Internet. The people that had the information I needed weren't going to just give it away.

After doing a lot of asking around who would be a good choice for helping me with my engine project, William Knight's name kept coming up. Long story short, William designed the engine and sold me most of the parts for the build. I was having a person local to me actually build the engine.

When head studs came up William wanted me to use 993 Twin Turbo Dilivar head studs. After reading all the terrible things said about Dilavar here on this forum, I had a problem with that recommendation. After all, all Dilivar head studs are doomed to fail, right? William insisted...and kept insisting. So, me, being a "trust but verify" kind of guy, started researching head studs. I checked with engine designers of similar caliber to William or people that had engines designed by engine designers of similar caliber to William to see what head studs they were using in engines similar to mine.

What did I hear from just about everyone I talked to? They used 993 Twin Turbo Dilivar head studs. Not a soul said they used Supertec head studs. A few people said they used ARP studs and a couple people said they used "proprietary" studs and did not want to divulge where they came from.

Anyway, I came away from my research project with new information from many experienced sources that did not jive with the information I had received here. There were just too many experienced engine designers/builders out there using 993 Twin Turbo Dilivar head studs and happy to do so for me to go against William's recommendation. After completing my research, using 993 Twin Turbo Dilivar head studs in my engine build ended up being a no brainer.