You can safely run it up to red line. that's what it's there for. As
far as wearing it out prematurely, wear/ rpm is probably on a curve very
similar to hp/ mph. IOW, 3000 rpm is fine, 4000, a tiny bit more wear,
4500, slightly more,  5000, quite a bit more, 5500, severe wear, 6000-
oh, hell, it won't pull 6000 in 4th, will it?
     As far as the rusted metal tubes, have you considered the repair
kits offered by Terry Kay? It seems like that would be a very good fix.
The plastic ones have their own types of failures, and believe me
changing them is a real bear of a job.
Al Brase

Data Services wrote:

>If the Tiico is rated (advertised on Tiico site) for 6300 rpm, should I be worried about what is being eaten up in my engine at 5k??
>
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> At least until the next repair.  This time upgrading to the long plastic coolant pipes that everyone else has : ),  from my rusty old metal ones VW used until they got smarter.
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