What makes a SVDA distributor less terrible than the 009? Options

[Tdskip]

I know there’s about 1,000,001 variations of the distributors on these cars, and I’ve also read here that the Pertronix Distributors are clones of the much hated 009 distributors. Is the SVDA unit they sell considered acceptable because it has a better curve than their other units?

D186504 Flame Thrower distributoR

Thanks!

[porschetub]

The 009 throws in advance too quickly and generates a flat spot before transition,it was never setup to do anything else as it was originally designed for industrial motors,the early T1 industrial motors used the old cast-iron 010 model,seem to remember the 009 was used on the later stationary motors which if memory serves me were 1600 cc the early ones were 1200cc like the one I had in my fun buggy.
These units were controlled by a crank driven governor which mechanically bought the rpm up to max after load was applied,the T4 industrial motors I know nothing about but believe they built many mainly for generator units.
The current SVDA is an off shot of the 0231 170 034 used on 1600 T1 beetles and they worked great and will do on a t4 if you have a correct carb vacuum supply.
Some say the 050 was a better solution but never used one so no comment.
The current SVDA won't play well with a cammed large bore T4 so its down to a 009 and just put up with it,no one offers a recurve on these as far as I know,good luck.