From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Road testing a Remy 6-cylinder coil and investigating mis-firing issues compared to the standard coil.
| Identifier | WestWitteringFiles\D\October1919\ Scan35 | |
| Date | 24th October 1919 | |
| Contd. -7- EFC10/T24.10.19. opportunity of trying these on the road and possibly proving that the ideas on this matter put forward as above, are approximately correct. We tried on the road a Remy 6 cylinder coil under conditions similar to those tried in one instance for our own coil, and there was no mistake about there being more margin in this coil to allow for inaccuracies of high tension circuit, than in our own. It is true we could get some mis-firing with the Remy coil but not as much under the same conditions as with the R.R. This coil has a smaller saturation core flux and a smaller number of secondary turns than the R.R. The amount of mis-firing in a chassis on the road is subject to some variation under the same apparent conditions, and one has to go very carefully, and determine exactly the effects of different changes. We have had cases where we could not produce a mis-fire provided the coil was connected the best way round and the distributor accurately set, in spite of the fact that the high tension wire remained through the tube. At other times we have had cases, where, even with the additional feature of the wire outside the tube but with the coil in the standard position, a few mis-fires have occurred, which, however, in one instance, were definitely cured by substituting Bosch for K.L.G. plugs. We have another condition in which a coil with primary the best way round was placed near to the distributor and connected to it by quite a short length of H.T. wire, in which no mis-firing would occcur Contd. | ||