What is everyones opinions about crowers titanium retainers. They are on a PR3 head with JUN III cams and JUN valvesprings.

 

They have worked great for me. But I think you already asked this question, right?

CB

 

yeah i asked before, i was trying to get a widespread opinion and dealings. How long have u had them and are you using JUN III cams with JUN valvesprings

 

my buddy used the crower retainers with his jun springs for awhile and he has np there

 

someone posted a pic of a motor that was F'ed the F up cuz the Crower retainer broke or someting...I forgot who tho...





[Modified by Toda Party, 4:57 PM 2/5/2002]

 

hmm, bad subject.

dont mention that name around steve..

go with portflow.

 

good call

here is the thread i was talking about

yikes!
https://honda-tech.com/zerothread?id=45927

 

Jun 3 cam and ecu. Sees over 9k everyday. with 50K miles. Absolutely no problems.

CB

 

I've run them two years with Jun2 cams, portflow/ITR springs, no problems to report, max revs 8600. I've seen guys with broken Jun retainers, so it can happen to any brand , although I've never heard of a Toda one going bad.

J.

 

does toda make retainers? i have never seen them advertised on their website

 

No they don't. My reccomendation is Ferrea

 

Portflow or Ferrea ti retainers

 

It has long been understood that Titanium is both stronger and more brittle then steel. As a result, they are far more likely to develop stress fractures and crack vs. their steel counterparts. True they are lighter and will allow the valve train to run faster but I think it would be prudent to stick to a strict replacement schedule if you want to ensure long engine life. Remember that no engine has ever survived the failure of one of it's valve spring retainers!

I know it is not uncommon for some race teams to replace retainers (steel or titanium) after every race!

Personally I don't feel the risks are worth the rewards for a daily driven machine. Consider for a moment the fact that neither SPOON, TODA, nor MUGEN offer Ti valve retainers... WHY is that?

 

Titanium also likes to gall badly. titanium is not all it's cracked up to be... mostly a mislead public thing.

D