I did last summer with
bald rear tire and me being 200lbs.
yoshi rs3 exhaust and k and n intake filter and factory pro +4 timing plate, and dynojet carb jet kit. +2 rear sprocket and -1 front . gold oring chain
my bike dynoed 100.24 rwhp...which is close to 120 at the engine. with no ram air effect.
i went to the track being a complete noob racing and mt best time was 11.9
116.25mph. with 94 pump gas tuned af ratio at 13.1-1
my bike the whole time had a huge wheeling issue...i couldnt keep it down on the ground.
1rst gear i could only feather the gas....
2ns only half at most and it would come off the ground.
3rd full
4th full etc...
i know all the guys there had extended rear swingarms and lowered there bikes...
my question is....
no i got a new rear tire...and way more stuff...but
i lowered the front down 1 inch and i got a new dog bone to lower the rear 1 inch...considering im 6'2" this is good for me...the bike looks slammed now...
i just ordered the 4-7" adjustable rear swingarm extension for my bike with the chain and brake line.
my question is
how much does it really help you launch.
like if i did 11.90 before with the lowering and extended rear swingarm plating the wheelie power down maybe i get 11.5

? or better??
can anyone gimme some solid advice??
i have nos on my bike now and a new top end inc pistons and rings and the head was redone racing spec full port and polish and head was shaved 200 thou for more compression.
forgeting all the other stuff...
11.9 to 11.5 sound reasonable?? or should a good driver on a good day do low 11??