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Engine Swap
12-16-2008, 16:28
Post: #22
Engine Swap
I'm not sure if that last question mark means you want me to explain why I said
it is likely that the assumption is wrong, or something else.

Assuming the former, my basis is empirical - it can easily be shown that a
typical pusher with side-mounted radiator will quickly overheat if there is not
a very large booster fan to suck lots of air in. Any natural flow is way too
weak. In my case, just going down a flat road with the fan idling at 600RPM I
see about 1 degree of temperature rise per 5 seconds until the fan kicks into
high speed.

On 12/17/2008 at 4:14 AM rwoodysurplus wrote:

>yes sir..
>
>we gotta try it for fun!
>
>never say never they tell me!
>
>too easy to change if we are wrong.
>
>Thanks! for putting the thinking cap on to show me the reason why?
>
>--- In WanderlodgeForum@yahoogroups.com, "Don Bradner"
> wrote:
>>
>> On 12/17/2008 at 3:32 AM rwoodysurplus wrote:
>>
>> >yes you are right--GOOD CATCH~!
>> >
>> >going to try that ...pushers suck air from the side
>> >
>> >why not the rear????
>>
>> Question: "why not the rear????"
>>
>> based on assumption: "pushers suck air from the side"
>>
>> Have you considered the (likely) possibility that the assumption is
>wrong? At least in terms of meaningful airflow?
>>
>> What would that do to your question?
>>
>> Don Bradner
>> 90 PT40 "Blue Thunder"
>> Posting today by aircard from Needles, California
>> My location: http://www.bbirdmaps.com/user2.cfm?user=1
>>
>
>
>
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Messages In This Thread
Engine Swap - krminyl@... - 07-05-2006, 11:13
Engine Swap - jwasnewski - 07-05-2006, 14:09
Engine Swap - Leroy Eckert - 07-06-2006, 01:38
Engine Swap - ronmarabito2002 - 07-06-2006, 12:22
Engine Swap - Leroy Eckert - 07-06-2006, 15:14
Engine Swap - Rob Robinson - 07-06-2006, 16:20
Engine Swap - ronmarabito2002 - 07-07-2006, 13:11
Engine Swap - susanmarycamilleri - 01-08-2008, 14:23
Engine Swap - Gardner Yeaw - 01-08-2008, 14:38
Engine Swap - susanmarycamilleri - 01-08-2008, 14:51
Engine Swap - Mike Hohnstein - 01-08-2008, 15:59
Engine Swap - Curt Sprenger - 01-08-2008, 16:24
Engine Swap - Mike Hohnstein - 01-08-2008, 17:31
Engine Swap - Ernest Ekberg - 12-15-2008, 01:05
Engine Swap - Henry Jay Hannigan - 12-15-2008, 08:23
Engine Swap - Richard Gideon - 12-15-2008, 10:18
Engine Swap - rwoodysurplus - 12-16-2008, 14:03
Engine Swap - Chuck Wheeler - 12-16-2008, 14:56
Engine Swap - rwoodysurplus - 12-16-2008, 15:32
Engine Swap - Don Bradner - 12-16-2008, 16:08
Engine Swap - rwoodysurplus - 12-16-2008, 16:14
Engine Swap - Don Bradner - 12-16-2008 16:28
Engine Swap - rwoodysurplus - 12-16-2008, 16:32
Engine Swap - timvasqz - 12-16-2008, 17:19
Engine Swap - birdshill123 - 12-17-2008, 03:33
Engine Swap - Don Bradner - 12-17-2008, 03:52
Engine Swap - Rob Robinson - 12-17-2008, 05:31
Engine Swap - Michael Day - 12-17-2008, 09:49
Engine Swap - Gardner Yeaw - 12-17-2008, 10:54
Engine Swap - timvasqz - 12-17-2008, 11:19
Engine Swap - birdshill123 - 12-17-2008, 14:45



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