Search found 6 matches

by Ni-Cad Steve
Wed Jan 03, 2007 9:50 pm
Forum: General Discussion
Topic: Test for Nickel
Replies: 5
Views: 1896

I'm going back to colege chemisty notes so I'll have to make a second post regarding acidic testing. I do work with nickel on a daily basis. Nickel is slightly magnetic so your material may very well contain Nickel. An easy test to perform is a density test. The accuracy of the results depends on th...
by Ni-Cad Steve
Wed Jan 03, 2007 9:27 pm
Forum: General Discussion
Topic: Knock Sensor
Replies: 15
Views: 5130

Wow! there are so many good ideas I do not know where to begin. To "flesh-in" the detail ... here goes ... The 3350-93 is not the same engine that appeared in the B-29. The -93 is mechanically fuel injected (like the Daimler DB-603) whereas the the bomber motor was carbuerated (but still fed a super...
by Ni-Cad Steve
Wed Jan 03, 2007 1:04 am
Forum: General Discussion
Topic: Knock Sensor
Replies: 15
Views: 5130

It is in fact an 18 cylinder Wright R-3350(-93) engine with mechanical fuel injection. After a $175k engine overhaul last year, we replaced two more sets of pistons/cylinders (@ $54k/set) due to detonation. The net result was a racer that could not race and a pile of unserviceable parts. The boss is...
by Ni-Cad Steve
Wed Jan 03, 2007 12:18 am
Forum: General Discussion
Topic: Knock Sensor
Replies: 15
Views: 5130

i get an error 404 ... Page could not be found
by Ni-Cad Steve
Tue Jan 02, 2007 10:45 pm
Forum: General Discussion
Topic: Knock Sensor
Replies: 15
Views: 5130

Knock Sensor

Does anyone have any data on engine knock sensors? They have been standard issue on automobiles for the last 20 years, yet there is little data available on how they work and what they are "listening" for. I am trying to graft 21st. century technology onto a 1940's era engine design which I suspect ...
by Ni-Cad Steve
Tue Jan 02, 2007 10:32 pm
Forum: General Discussion
Topic: Battery power supply
Replies: 10
Views: 3194

Both Maxim and Linear Technology have excellent step-up switch-mode converters designed to work from one NiCd cell. I really like the Linear Tech. parts. Unlike National Semiconductor, everything that I have ever built from a Linear Tech data-sheet has worked better than expected. Both companies hav...