Thanks for the suggestion of the Revmaster crank and prop hub Mark. Why? Any other suggestions? Heads?
It does seem a shame to rip apart the HAPI, but I keep getting ominous opinions of its airworthiness. > On Apr 17, 2016, at 9:00 AM, krnet-request at list.krnet.org wrote: > > Send KRnet mailing list submissions to > krnet at list.krnet.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org > or, via email, send a message with subject or body 'help' to > krnet-request at list.krnet.org > > You can reach the person managing the list at > krnet-owner at list.krnet.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of KRnet digest..." > > > Today's Topics: > > 1. 94x82 vs 92x82 (svd) > 2. Re: 94x82 vs 92x82 (Mark Langford) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 16 Apr 2016 16:31:56 -0700 > From: svd <osprey220 at yahoo.com> > To: "krnet at list.krnet.org" <krnet at list.krnet.org> > Subject: KR> 94x82 vs 92x82 > Message-ID: <BF6418A0-E0FE-476C-834D-6E8D0FC63510 at yahoo.com> > Content-Type: text/plain; charset=utf-8 > > > Is there any downside to moving to the 94mm cylinders vs 92mm's? My son?s > project currently has the 92x82 for 2180cc. I can move to 94x82 for about > the same cost as sticking with 92x82 in an upcoming rebuild. > > I?ve read that the 94mm cylinders are preferred because they are thicker > walled. > > I am considering a pretty serious rebuild of the HAPI engine that came with > my son?s KR project. > > Specifically, we are intending to replace the crank and prop hub (with GP Top > Bug and Force One), cylinder heads (with ?), alternator with GP, and > cylinders with nikasil?s (not the LN Nikies). > > Since the case will have to be machined to accept the Force One prop hub, > shouldn?t be too much more to machine for the 94?s. > > Cheers, > Owen > > > > > ------------------------------ > > Message: 2 > Date: Sat, 16 Apr 2016 20:28:53 -0500 > From: "Mark Langford" <ML at N56ML.com> > To: "'KRnet'" <krnet at list.krnet.org> > Subject: Re: KR> 94x82 vs 92x82 > Message-ID: <6657B9D418D943CE96CBB3D7C757FBFD at BASE755> > Content-Type: text/plain; charset="us-ascii" > > Owen wrote: > >>> Is there any downside to moving to the 94mm cylinders vs 92mm's? My son's > project currently has the 92x82 for 2180cc. I can move to 94x82 for about > the same cost as sticking with 92x82 in an upcoming rebuild.<< > > Several of us are running 94mm cylinders on the Corvair with no problems at > all. You'll probably go through at least two sets of VW heads before you > need to touch the pistons/cylinders. They are well proven. I put 550 hours > on a set in N56ML and they still look great and have great compression. > > I've built two GPASC engines (and torn them both down several times for hub > issues), and if I were going to build another VW, I'd use the Revmaster > crank and prop hub setup instead. > > Mark Langford > ML at N56ML.com > http://www.n56ml.com > > > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > See KRnet list details at http://www.krnet.org/instructions.html > KRnet mailing list > KRnet at list.krnet.org > http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org > > > ------------------------------ > > End of KRnet Digest, Vol 4, Issue 100 > *************************************
