Paul writes a very encouraging note;
> There are four springs in the set of which only one is a 'secondary' spring.
> All the springs tend towards the heavy end of what has been seen in genuine
> MGB distributors so far, not surprising since CM are a tuning specialists
> and therefore the springs are probably selected for use at higher rpms.
I agree here. These are performance parts.
> Yes, they physically fit the 25D and 45D but the important question is "what
> curve do they give?" - there are some 16 or so specs for the MGB alone, some
> with very different characteristics. A number of us are in the process of
I would argue that MOST of the variability that we see is emissions related,
not performance.
> obtaining springs from various sources and measuring physical and dynamic
> characteristics to see if we can come up with some suitable combinations.
That would be great. What would be awesome is if someone has (or
would build a clone of) an old Lucas distributor tester! That way we could
measure the curves. Hell, perhaps we could even understand the curves for
the different vacuum modules!
> PaulH.
Rick Lindsay
Diamond Geoscience Research
5727 S. Lewis Ave., Tulsa, OK
Voice: +1 918-747-3456
Fax: +1 918-747-8599
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