Hi All,
My RGS replica (62 Super Rocket), is still cooling down, after it's first time on the dyno.
It will have a second (and final) run in a couple of weeks time, after I get some leaner throttle slides from Hitchcocks.
So, how did it go?
About 6 hp better than an iron head GF so far, and I reckon there will be a little bit more, when the correct (leaner) slide is installed.
It started with the standard #3 slide (and a K & N element in the air cleaner, but the mixture was way too rich. The leanest slide I had was a 3 1/2, which improved (leaned) the mid range. However, it needs to be at least a 4 (maybe 4 1/2).
The needle is cutrrently at its lowest (leanest) position, but we expect to raise it a notch or two once the slide is changed.
Main jet is perfect (spot on mixture) at 420.
Needle jet is best at 106.
Started timing at 34 BTDC. (At 35 or greater the engine with ping).
This gave 26 HP (rear wheel).
the best timing setting is 32 btdc. Power goes up to 28 HP, torque increases by 10 ft lb, and is a 3,000 rpm instead of 3,200 rpm when timing was more advanced.
retarded timing to 30 BTDC, but HP dropped to 26, and max torque drcreased.
Engine no longer pings, and pulls like a choir boy!
Will post final curve after next run (when slides arrive).
Richard
The Kalgoorlie Kid
Joke:
A man asked a wise old American Indian chief "What is your wife?s name?"
He replied, ?She called Four Horse?.
The man said, ?That?s an unusual name for your wife. What does it mean??
The Old Indian answered, ?It old Indian Name. It means ?
? NAG, NAG, NAG, NAG!"
