Theres a OS ' SF - S ' crankshaft .
Sleeve timings around 140 Ex 120 Trans . STD. lower than a VF .
The ringed version seems to be the sworn by one .
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Tank Fully Inboard of needle, say a recess between the bearers ./ -The outside edge was dead level . You get a solid 4 strokein level flght, and a good ' break ' set by needle .
Think the head wants to be close on these SF's . Some say 10 - 15 Thou Max , for squish band to be a squish band . Didnt like a extra gasket .
( Might pay to open out chaber with 1.5 wide squish , if youre wanting to lower the compession. Maybe.) LA 46 liner interchanges,
Tho If had a few ' DONT DO IT's mentioning bloking the by pass . It almost a one piece case FSR 45 / 50 , with lower sleeve timing .
Only got the good run after going to 15 5 N , one gasket & the big 8.8 mm intake . Tho mayve just been settling in , after overhaul . Std Spec.
on the 25 ,
Tank vent straight out the side , end cut 45 Deg . uniflow - tin tank . Bent 90 deg. into airstream & was irregular . to normaly blowing , itd do
the lean of downwind / rich into wind . LOW & LEVEL . So a small thing but experiment there may produce disproportionate results .
Down Proped when wind howling , to get it into the powerband , so it didnt go backward overhead .
Today in the 60 Oz Mustang. Not the best . Not nedling to right .
TIMING FIGURES for the CLONE royal 46 . ABC .
Ex 140 , Trans 114 , Boost 108 . Crank opens 35 closes 45 . Id assume thats within a few degrees of the OS R/C crank .
Liner had rotated . tediously centered when fit. Not clamped enough to tear the heads off the screws , but cautiously tightened .
So THE PEG is for more than just assembly accuracy of alignment .rotated 1/4 Ex or 1/2 trans .
All these FSR , SF & T Tigre 46 cranks interchange , bar ( I think its ) the SF ?? has a larger flywheel- counter weight diameter , So
some go in some, others dont, unless you machine down the diameter 7 some need the big end trench to clear the big end .
The SF is 19.5 stroke , 22 bore . near enough S tigre .46 dimn's. G-51 matches SF mount & V.c.V. backplate posn. mounting holes , ex stack hight etc .
for interchange .
Was almost awake sunday , a bit slow , of woulda picted a better setting .