Swivel feet valve adjuters. Ball or Elephant type on larger T1 engines ?

[paulcalf]

One of my ball style swivel feet valve adjusters has broken off (photo attached).
12 years/(20k+ miles use.

Should I replace them all with ball style or elephant feet style?
Experience from larger T1 engine owners appreciated please.

latebayers (mainly with Type 4 engines) are saying replace with elephant style made from tool steel.
http://www.tp-technologie.de/produkte ventileinstellsch en.htm

Engine builder said I can change to elephant feet style valve adjusters without issue, but to buy the best available.

Awaiting a reply from TP adjusters about their tool hardened steel ones.

Called coolair. He preferred the ball type rather than elephant feet style as they have had elephant feet ones fail!

Called stateside who listed elephant feet style tool hardened ones on their site.
They told me they have stopped doing them for T1 engines as they had quite a few failures.
They said ball types have less failures and suggested I stick with that type.

So direct experience of use by T1 owners greatly appreciated.

Engine info:
2110cc Type 1 engine

WEB 1 1 1 camshaft 272/272 degrees of advertised duration, & 238/238 degrees of duration at .050". Lift 0.476". Lobe centre 108 Rockers are 1.1 Cut to length pushrods Scat Cam Followers Tappets are .004" when cold Mofoco 40x35.5 valve heads Dual valve springs Chromoly Caps

 

[sparkywig]

I use the Porsche style elephant feet adjusters.

 

[paulcalf]

I use the Porsche style elephant feet adjusters.

Have you had them in a
long time?

 

[sparkywig]

About 12 years on a couple of engines, I did break one a few years ago but that was due to over revving the engine

 

[K@rlos]

Anything from Thorsen Pieper is going to be of outstanding quality, I use his tool steel lifters in my engines. Never use elephant foot adjusters myself (personal preference) but I'm sure TP’s will be more then suitable for your set up

 

[paulcalf]

Anything from Thorsen Pieper is going to be of outstanding quality, I use his tool steel lifters in my engines. Never use elephant foot adjusters myself (personal preference) but I'm sure TP’s will be more then suitable for your set up

What valve adjusters do you have in yours?

 

[K@rlos]

What valve adjusters do you have in yours?

My Scat 1.45:1 rockers have the cup style same as this photo, I use them in conjunction with the lash caps which are supplied with the kit.

 

[67panel]

From memory that is what we used on the race beetle and that did 7500 rpm (or more as daughter would not tell me!!) That was with a full race cam on the 1903 cc and a 110 in the 1679cc

 

[67panel]

For anyone interested that is some aggressive cam and with 1.4 ratio rockers as well as big valve heads and 48IDF carbs it had less go below 3000 rpm than a knackered 1300! above 3000 it just took off, not sure how much BHP it made but car ran 13.3 on the strip.