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Search: Posts Made By: ffkiwi
Showing results 1 to 13 of 13
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Forum: Everything Diesel
11-01-2018, 11:32 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

[QUOTE=Chris W;12474767]From the FMV treatise,...

[QUOTE=Chris W;12474767]From the FMV treatise, cylinder walls near the combustion chamber can run at 250C. Any higher and the oil vapourises.
Makes sense that the upper limit on any sliding surface...
Forum: Everything Diesel
10-27-2018, 10:06 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

There are hand held remote sensing IR...

There are hand held remote sensing IR thermometers out there in modeldom now-mainly for the benefit of the R/C car guys who are rather cavalier in their treatment of engines-it would be a simple job...
Forum: Everything Diesel
10-17-2018, 01:51 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

Why would you assume that it is red hot..? ...

Why would you assume that it is red hot..?

ChrisM
'ffkiwi'
Forum: Everything Diesel
09-14-2018, 03:47 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

Lou-all good points-and the simple answer is: I...

Lou-all good points-and the simple answer is: I don't think anyone has actually looked. I do know that one of my Frog 249s from time to time emits glowing sparks from the exhaust when running-but...
Forum: Everything Diesel
09-14-2018, 03:18 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

But as I noted earlier-how systematic was the...

But as I noted earlier-how systematic was the Parra testing?-I already outlined some of the variables-and you would need to test these independently-ie shapes separately from volume separately from...
Forum: Everything Diesel
09-04-2018, 06:29 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

I don't know-it would seem that there are three...

I don't know-it would seem that there are three basic geometries to be explored-a squish band on a flat contra face, a squish band on a conical contra face and a squish band on a hemispherical...
Forum: Everything Diesel
09-04-2018, 05:32 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

Regardless of the various laws that may or may...

Regardless of the various laws that may or may not apply-there is documented evidence that the combustion process and gas flow in 360 degree ported diesels is not symmetric-clear evidence from the...
Forum: Everything Diesel
05-22-2018, 01:49 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

Doesn't surprise me with no obvious attempt made...

Doesn't surprise me with no obvious attempt made to pin the contra against rotation. Likewise I can see no reason for the holes in the topside-unless it was some misguided attempt to balance out the...
Forum: Everything Diesel
05-22-2014, 05:44 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

I am in general agreement when it comes to...

I am in general agreement when it comes to directional porting in a 360 degree environment-my earlier point was in the context that the wide number of examples I gave did NOT have directional...
Forum: Everything Diesel
05-21-2014, 12:41 AM
Replies: 91
Views: 13,753
Posted By ffkiwi

`I'm not sure mate-PAW chronology is a bit of a...

`I'm not sure mate-PAW chronology is a bit of a mystery when it comes to pinning down-these two are vertical intake-but that could place them anywhere from ~1962 through till the mid 80s when the...
Forum: Everything Diesel
05-20-2014, 09:23 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

OK-a quick check around the stable: Allbon Dart,...

OK-a quick check around the stable: Allbon Dart, Allbon Spitfire (1 and 2), Allbon Javelin, Alag X-3, TWO (!) PAW19Ds, ED Baby, ED Fury, Super Fury and Racer, Webra Winner and Record (all models),...
Forum: Everything Diesel
05-19-2014, 07:58 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

I'd both agree and disagree with recycled flyer-a...

I'd both agree and disagree with recycled flyer-a conical piston DOES offer advantages over a flat topped one-for 360 degree porting....it is however, more expensive to make and requires a matching...
Forum: Everything Diesel
05-18-2014, 06:08 PM
Replies: 91
Views: 13,753
Posted By ffkiwi

To the best of my knowledge the OS was the only...

To the best of my knowledge the OS was the only diesel to use a classical 'fence' baffle-and it was a resounding debacle for OS-who undoubtedly lost a lot of money on it....I suspect (quite apart...
Showing results 1 to 13 of 13


 
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