Dished pistons. I was able to get TRW forklift pistons and the machinist was
surprised at how well they were made and how well balanced they are to each
other.
Mike
----- Original Message -----
From: "Adam Bradley" <ambradley@attbi.com>
To: "Jim Cawrse" <nqrithjim@hotmail.com>; <datsunmike@nyc.rr.com>;
<andycost@att.net>; <datsun-roadsters@autox.team.net>
Sent: Monday, August 26, 2002 5:40 PM
Subject: Re: U-2100?
> www.motorpowerinc.com sells H20 pistons in .060 overbore for under $16
> each. Assuming same stroke as U20, what would an .060 overbore give us in
> terms of total displacement? I realize these are probably flattop
pistons,
> but that might be a good thing if we're cramming that much more stuff into
> the compressed area...
>
> At 04:35 PM 8/26/2002 +0000, Jim Cawrse wrote:
> >This is IRT the crank grinding question
> >Just like anything involved with horsepower, it depends
> >on how much money you have. I know the 1600/2000
> >stroker will live quite happily with .040 overbore, I would
> >think this would be the road to go before
> >fooling with the crank. I will have to get
> >the formulas out to find out how much
> >this gives, but would SWAG it at
> >2100 or therabouts on a 2000 stroker.
> >Plus, bigger piston
> >squishing same combustion chamber means
> >higher compression.
> >Best Regards,
> >Jim
> >Chesapeake Va
> >67 pushrod 2000/5spd
> >72 510 sportwagon
> >
> >PS:
> >SWAG equals
> >scientific wild ass guess
> >
> > >From: "datsunmike" <datsunmike@nyc.rr.com>
> > >Reply-To: "datsunmike" <datsunmike@nyc.rr.com>
> > >To: "Andy Cost" <andycost@att.net>, <datsun-roadsters@autox.team.net>
> > >Subject: Re: U-21
> > >Date: Sun, 25 Aug 2002 16:29:51 -0400
> > >MIME-Version: 1.0
> > >Received: from mc1-f22.law16.hotmail.com ([65.54.236.29]) by
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Aug
> > >2002 13:35:17 -0700
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> > >Aug 2002 13:34:29 -0700
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(8.11.0/8.11.0)
> > >id g7PKUAt07139for datsun-roadsters-actors; Sun, 25 Aug 2002
14:30:10 -0600
> > >(MDT)
> > >Message-ID: <002d01c24c76$2a5bb3e0$15385a18@nyc.rr.com>
> > >References: <001301c24c69$ae84efe0$2b11530c@cost>
> > >X-Mailer: Microsoft Outlook Express 6.00.2600.0000
> > >Sender: owner-datsun-roadsters@autox.team.net
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> > >X-OriginalArrivalTime: 25 Aug 2002 20:34:29.0254 (UTC)
> > >FILETIME=[CF98BA60:01C24C76]
> > >
> > >How about just boring the motor. Nissan does make sleeves for the
engine so
> > >you can bore it as large as possible and install sleeves if the casting
is
> > >crappy or cylinder walls are thin.
> > >
> > > Cheaper and easier as you'll have to get custom rods also.
> > >
> > >Mike
> > >
> > >
> > >----- Original Message -----
> > >From: "Andy Cost" <andycost@att.net>
> > >To: <datsun-roadsters@autox.team.net>
> > >Sent: Sunday, August 25, 2002 3:00 PM
> > >Subject: U-21
> > >
> > >
> > > > Has anyone tried to offset grind a U-20 crank? My estimate is about
> > >100cc
> > >for
> > > > each 1mm offset ground. What is the limiting factor here?
> > > >
> > > > Thanks,
> > > >
> > > > Andy
> > > >
> > > > /// datsun-roadsters@autox.team.net mailing list
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> >
> >
> >
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> Adam Bradley
> '70 Datsun 1600 Roadster SPL311-28181
> '67 Datsun RL411 SSS sedan RL411-11321
> '66 Datsun PL411 sedan PL411-022447
> http://www.picturetrail.com/abend
>
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