[Fot] Connecting rod question

[DAVE HOGYE]

I can't recall the size of ARP the bolts in the Carrillo rods I have, but they are the larger of the two different ARP sizes, at least 5/16" maybe 3/8", and are reusable if they haven't been over stretched.  Of course, the rods must also be different than those with the 1/4" bolt design.  I have literature from Carrillo, but I double and triple checked the facts of the fasteners before reusing them.  I called Carrillo too.  The rods were used previously to my acquiring them, with the included bolts.  
I was sure glad I didn't have to spend $46 each, or whatever they were at the time, but I'm sure it was something like that, and I made damn sure everything was in good order before moving forward.  
Dave H.  

>     On 01/25/2023 3:34 PM Barr, Scott via Fot <fot at autox.team.net> wrote:
> 
> 
> 
>     I had the same experience with the dinky little ¼” ARP rod bolts in my Carrillo set.  I had a hard time trusting them.  I did measure them for yield each time I used them, but I mostly went by feel while torquing them up.  There were just times when you could feel them stretch the normal amount and some times when you could feel them streeeeeetch a bit more.  I replaced them at that point, regardless of what the measurements said.  Never had one break in use though, while I did have a 5/16ths ARP rod bolt break in a lightened stock rod.
> 
> 
>     Scott (B.)
> 
> 
>     From: Fot <fot-bounces at autox.team.net> On Behalf Of Scott Janzen via Fot
>     Sent: Wednesday, January 25, 2023 3:42 PM
>     To: Brad Eells <tr4abrad at gmail.com>
>     Cc: 'Friends of Triumph' Triumph <fot at autox.team.net>
>     Subject: Re: [Fot] Connecting rod question
> 
> 
>     the carillo rods, at least for the GT6 - same, I think as the Spit and the TR6 - do have these dinky little 1/4” bolts. I’ve never had a failure in action, but did overstretch one because I used ARP lube instead of Carillo lube - the arp lube is slicker.  Those bolts cost about $42 each!  I now use the correct lube, measure them before and after I install and uninstall them, etc.  No issues at 7000 rpm, just about every shift.
> 
> 
>     On Jan 25, 2023, at 2:48 PM, Brad Eells via Fot <fot at autox.team.net mailto:fot at autox.team.net > wrote:
> 
> 
>     Walt,
> 
>      
> 
>     I went with Pauter rods for the Spitfire due to the use of a larger rod bolt than Carillo.
> 
>      
> 
>     Marty Sukey posted some very nasty pictures of his Carillos and a rod bolt failure…good enough for me.
> 
>      
> 
>     Not sure how it will apply to TR6 items but worth a look.
> 
>     Brad Eells
> 
>     Sent from my iPhone
> 
> 
> 
>         > > 
> >         On Jan 25, 2023, at 11:33 AM, Walt Hollowell via Fot <fot at autox.team.net mailto:fot at autox.team.net > wrote:
> > 
> >     > 
>         > > 
> > 
> >         I have built a few full race engines for my TR6 using MaxSpeeding connecting rods with acceptable results. For my next build I am considering Carrillo rods which run about $650 more than the MaxSpeeding rods. 
> > 
> >         Do and FOT members feel that the Carrillo rods are worth the extra bucks or should I be happy with the MaxSpeeding considering the affordability?
> > 
> >         Thanks,
> > 
> >         Walter Hollowell
> > 
> >         Albuquerque, New Mexico
> > 
> >           http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient
> > 
> >         Virus-free.www.avg.com http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient
> > 
> >         _______________________________________________
> >         fot at autox.team.net mailto:fot at autox.team.net
> > 
> >         http://www.fot-racing.com/
> > 
> > 
> >         Donate: http://www.team.net/donate.html
> >         Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
> >         Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/tr4abrad@gmail.com
> > 
> > 
> >     > 
>     _______________________________________________
>     fot at autox.team.net mailto:fot at autox.team.net
> 
>     http://www.fot-racing.com http://www.fot-racing.com/
> 
>     Donate: http://www.team.net/donate.html http://www.team.net/donate.html
>     Archive: http://autox.team.net/archive http://autox.team.net/archive  http://www.team.net/pipermail/fot http://www.team.net/pipermail/fot
>     Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/sjanzen@me.com http://autox.team.net/mailman/options/fot/sjanzen@me.com
> 
> 
>     _______________________________________________
>     fot at autox.team.net
> 
>     http://www.fot-racing.com
> 
>     Donate: http://www.team.net/donate.html
>     Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
>     Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/dlhogye@comcast.net
> 
> 
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20230125/ae0e1872/attachment.htm>