Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

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-   -   Ditching the Asymmetrical Connecting Rod (https://www.ft86club.com/forums/showthread.php?t=18781)

WingsofWar 10-02-2012 04:56 PM

Ditching the Asymmetrical Connecting Rod
 
http://a7.sphotos.ak.fbcdn.net/hphot...93694940_o.jpg

Courtesy of Crawford Performance's new Turbo BRZ build

serialk11r 10-02-2012 05:05 PM

Whoa. That looks fat.

Tradewind 10-02-2012 05:17 PM

Be interesting to know the negatives of ditching the very good stock rods

Calum 10-02-2012 08:40 PM

Yeah... If ap is revving to 9k and making 460 wheel on the stock rods, I think I'll leave them alone for now. When it comes time I might replace the pistons for a lower compression ratio, but I'll probably just run a meth kit instead.

SkullWorks 10-02-2012 08:53 PM

I would assume they did this to avoid loading the eccentric part of the bearing shell?

I was just discussing the effects of having the split line at a 45degree angle to the
major load of the part.

serialk11r 10-02-2012 08:53 PM

Quote:

Originally Posted by Calum (Post 472856)
Yeah... If ap is revving to 9k and making 460 wheel on the stock rods, I think I'll leave them alone for now. When it comes time I might replace the pistons for a lower compression ratio, but I'll probably just run a meth kit instead.

Well, it's hard to say how long the rods are going to last with 1.5atm boost and 9000rpm, aside from sheer force rods have to deal with fatigue as well. That said, 12.5 compression ratio and the levels of specific torque they're hitting are definitely giving the rods quite a beating which they are taking pretty well.

Entropy 10-02-2012 09:08 PM

Pauter rods? Looks real nice.

Xanatos 10-02-2012 09:38 PM

Seems like that inner bolt would be tough to get to during installation if its horizontal like that.


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