Heres an idea. If the problem is simply that you don't have enough cooling
potential in the smaller radiator, and not that the flow is too fast.
Re-plumb your windshield washer nozzle so you spray either water or better
yet alcohol onto your radiator. Every time you motor gets hot cool down the
radiator. I know it has been done on intercoolers! I will not be
responsible for any negative results however.
Ian
>From: "Pete Koernig" <pkoernig@cableaz.com>
>To:
><TCR2B@aol.com>,<ianmiller07@hotmail.com>,<datsun-roadsters@autox.team.net>
>Subject: Re: Aluminum Radiators
>Date: Wed, 23 Apr 2003 11:00:10 -0700
>
>Almost 100% guarantee that a fluid hat is being pumped will result in
>turbulent flow...a Reynolds number below 2000 is laminar and above 4000
>turbulent, in between is the "critical zone".... Don't think there
>is much engineering left in the design of engine radiators. A copper
>radiator will transfer heat almost twice as fast as an aluminum one.
>
>I live in lower regions of AZ --- at 120F ambient temperature it's too hot
>to be anywhere outside. Best you can do for engine cooling is:
>make sure the antifreeze mixture is correct, the water pump is operating
>properly, the radiator is clean and no tubes are obstructed, straighten
>any bent or damaged fins, make sure the fan shroud is installed correctly,
> the fan is in the right position relative to the shroud, there are no
>obstructions to the air flow, the radiator is paint black.. Then add
>rows or increase the fins/inch -- after that you're into fan sizes and
>speeds and/or electric fans.
>
>This email scanned by Norton Antivirus.
>
>Pete Koernig
>'70 1600 almost done and '69 2000 'lot of work left
>
>
>. ----- Original Message -----
>From: <TCR2B@aol.com>
>To: <ianmiller07@hotmail.com>; <datsun-roadsters@autox.team.net>
>Sent: Tuesday, April 22, 2003 5:17 PM
>Subject: Re: Aluminum Radiators
>
>
> > Ian,
> >
> > Sounds reasonable to me that the flow would be turbulent (given the
> > conditions you talked about). I don't really fool with this kind of
>stuff
> > anymore, but it's interesting to read about. We'll see what Fred has to
>say.
> >
> > Mike Davenport
> > RROC
> > '67 1600
> >
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