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Discussion Starter #1
This is for my motorcycle but the principal should be the same. 1980 Kawasaki KZ1300 (six cylinder), 120HP/85.6 ft lbs torque stock and should do mid 11's stock. It has a modified K&N intake, accel coils (huge improvement), modified exhaust, and has dropped about 50 pounds (now 670lb).

Early in the year the battery wouldn't charge over 12.5 volts. It ran and started fine but I decided to replace the battery anyway. It felt like I may have lost a little horsepower even after the new battery was fully charged. I assume the bad battery put less load on the alternator and free'd up a few hp's.

I'm taking it to the drag strip for the first time today and want to be in the 10's. Should I unplug my voltage regulator/rectifier for a drag race? Or would the loss in voltage have too much of an adverse effect on spark?
 

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:zwthstpd:
The alt would give your bike more volts.. Up to 14 actually..
Thus giving better spark than the 12-12.5 youäll get out of a
normal battery..

//Per
 

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Discussion Starter #4
I think you guys are right but I'm going to try it both ways to be sure. I gotta have all the help I can get. I don't want to loose a race to some snot-nosed civic driver.
 
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