04-27-2007, 06:09 PM
this here is what i do for break in, and the results are awsome. a lttle time consuming though.
---> fire up the motor, and let it idle in 2-3 minute intervals. make sure the temp gets up to 190-200*. after the first 2 min, shut it off and let it cool down to about 100*( MAKE SURE THE PISTON IS AT BDC DURING THE COOLDOWN) after the cooldown, start it up again and let it idle again for 2-3 minutes. repeat this for 2 tanks.
---> fire up the motor, and drive it around at 1/4 throttle. making sure you vary the throttle a little.( 1/4 for a few seconds then let go, 1/4 for a few seconds, then let go, etc.) do this for 2-3 tanks
----> start up the motor, and run it at 1/2 throttle. making sure once again you change up the throttle a bit, but DONT GO VER 1/2 do this again for 2-3 tanks
----> again start the motor, and run it at 3/4 throttle. agian making sure you vary the throttle again but not going over 3/4. 2-3 tanks
---> finaly, start it, and drive the car varying your throttle from idle-WOT(wide open throttle) do not hold WOT open for more than a few seconds. do this for 1-2 tanks.
you can start to tune after the WOT runs. personally, i shut the engine off and let it cool down to about 100* in between tanks. still making sure the piston is always at BDC when cooling.
this is the break in procedure i have used since day 1, and i have gotten superior performance out of every motor that was broken in using this method.
---> fire up the motor, and let it idle in 2-3 minute intervals. make sure the temp gets up to 190-200*. after the first 2 min, shut it off and let it cool down to about 100*( MAKE SURE THE PISTON IS AT BDC DURING THE COOLDOWN) after the cooldown, start it up again and let it idle again for 2-3 minutes. repeat this for 2 tanks.
---> fire up the motor, and drive it around at 1/4 throttle. making sure you vary the throttle a little.( 1/4 for a few seconds then let go, 1/4 for a few seconds, then let go, etc.) do this for 2-3 tanks
----> start up the motor, and run it at 1/2 throttle. making sure once again you change up the throttle a bit, but DONT GO VER 1/2 do this again for 2-3 tanks
----> again start the motor, and run it at 3/4 throttle. agian making sure you vary the throttle again but not going over 3/4. 2-3 tanks
---> finaly, start it, and drive the car varying your throttle from idle-WOT(wide open throttle) do not hold WOT open for more than a few seconds. do this for 1-2 tanks.
you can start to tune after the WOT runs. personally, i shut the engine off and let it cool down to about 100* in between tanks. still making sure the piston is always at BDC when cooling.
this is the break in procedure i have used since day 1, and i have gotten superior performance out of every motor that was broken in using this method.