afm199 at earthlink.net
Wed May 7 08:26:01 PDT 2008
Have not measured, probably around 12.5
On May 7, 2008, at 8:23 AM, Steve Robertson wrote:
> How much compression are you running?
> Well I finally ( how about over a year) got the motor in my SV. I
> started over a year ago. Balance and lighten crank and flywheel
> (thanks BRG Racing), 1 mm over zlock pistons, 1 mm over intake valves,
> mild porting and radius valve job, Zoran's springs with 03 cam swap (
> I may put in the Webb cams later), all new bearings, shell and ball,
> new rods.
> In a word, wow! The dyno run was good, it just ran out of power at
> 73.5 hp (factory pro) only 4 HP over my other motor ( busa pistons and
> 03 cam swap, both motors with M4 and flatslides). However from 5700
> to 9000 there was a fat 5-8 HORSEPOWER gain all the way through, and
> the 5k dip is gone. Running 100 octane pump gas.
> I rode it yesterday at Thunderhill, and am I smiling. The midrange
> drive out of the corners is fantastic. I finally don't feel abandoned
> on the front straight, the 600s still pull me, but they don't pull me
> that much, and the tighter course is just dynamite. 6-7-8-9 rocks.
> Definitely worth the long wait. Thanks to KC for the help along the
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