A slightly different opinion; the 1.6 engine is the most durable engine under knock I’ve yet encountered.
Two reasons: Real fat upper ring lands, about twice a typical piston. Stiffness of the ring land is relative to the 3rd power of thickness. Strength, the second power. Next is the oil spray piston coolers. 600F hot pistons are vastly stronger than 700F pistons, ring lands included. Just a thought, Corky From: [email protected] [mailto:[email protected]] Sent: Tuesday, July 27, 2010 9:02 PM To: MataPowerList Subject: RE: Stock 1.6l w/FM2 kit, mechanical limits with regard to boost and advance? i been following this since Christ was a corporal, and a properly tuned 15psi has always been the safe limit that I have heard of. on a 1.6 thats about 220rwhp. these normally durable engines are very unforgiving of detonation under boost. a set of low comp pistons and better rods really pays off if you can sustain the cost of those and a rebuild. -------- Original Message -------- Subject: Re: Stock 1.6l w/FM2 kit, mechanical limits with regard to boost and advance? From: Alpinaturbo <[email protected]> Date: Tue, July 27, 2010 6:49 pm To: "[email protected]" <[email protected]> Cc: "[email protected]" <[email protected]> Ian 1.6 does not generate torque and this rod breaking stress like 99 and up 1.8 I am confident into 18psi on stock 1.6 w/t28 maximized on e85 Sent from my iPhone On Jul 27, 2010, at 6:39 PM, Ian McCloghrie <[email protected]> wrote: > On Jul 27, 2010 [email protected] wrote: >> My question is what are the safe limits of boost and ignition advance >> one can run when there's enough octane to not knock? When do the rods >> and/or pistons give up on the stock 1.6l? > > The general feeling seems to be that once you start exceeding 250 rwhp > (at stock rev limit) you should worry about the life of your rods. > > Not sure about pistons -- most failures of those that I've seen on the > net seem to be head/detonation-related, rather than power. > > --Ian > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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