As a matter of fact, The "B" cam option is often used with SU's. Just as it
does with the Solex's, this cam raises the power band a little higher. I
like how Dann describes it on his web site,
http://www.datsunroadster.com/PIC_PAGES/NEW_PARTS_PIC_PAGES/130-01.htm
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"Originally the SU carb equipped 2000s came with a 256 degree cam, and the
cars with Mikuni-Solex carbs came with a 280 degree cam. These were noted by
an "A" (SU) or "B" (Solex) which was stamped into the rear end of the
camshaft. This requires a mirror to see if the camshaft is still in the car.
Some cams have been reground without changing this designation. The Solex
cam can be used with the SU carbs. It adds some performance while still
retaining a decent "street" idle. The power band moves up about 500 rpm
(personal opinion). The gains at the higher rpm's are somewhat the same as
the losses at lower rpms."
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As they say "there's no such thing as a free lunch" . You gain on the top
but lose on the bottom.
In SCCA Club racing, you CAN NOT use the "B" cam or equivalent with Solex
equipped cars. However, SU's can and do.
Victor
70 SRL 31113136
Los Angeles
http://albums.photopoint.com/j/AlbumList?u=123073
SoCalROC http://www.ameri-eagle.com/datsun/
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