SFC 1000 Cams?

F1, just like the RGS I think. The 9 additional HP over the standard RGS are more delivered by 36mm against 32 inlet channels and 40,5 (or 41?)mm Inlet valve against 39,5mm on the RGS... ;)

Other cams were only installed in the TTF1 which had P1 cams with more lift ( a bit like the 7/C on the 180?), delivering more top-end while butchering the low-end.

HTH
 
F1 with altered valve sizes and higher comp than stock RGS, adds up to about 10 ponies extra.  Pity the factory used the crude 4-holes-in-the-silencer trick, a larger bore exit tube would have been far more elegant.

piet
 
sfcpiet said:
F1 with altered valve sizes and higher comp than stock RGS, adds up to about 10 ponies extra.  Pity the factory used the crude 4-holes-in-the-silencer trick, a larger bore exit tube would have been far more elegant.

piet
Click to expand...

A larger center hole was a modification that Steve Carroll (European Cycle Specialties in Southern California) used to do. He put in a 1 inch id center hole I think, or about 25.5mm. According to a note I have here the stock center hole was about 22mm. I have that larger center hole on my Executive, plus the added four outer holes.
 
Lots of dealers did that, Ed. A favourite mod at Moto Witt. 

The stainless silencers on my RGS have 28 or 30mm exits.  Just as loud/quiet as stock, without looking like Luigi was drunk... :D

piet
 
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