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Engine Break In

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Old Sep 24, 2009 | 09:07 PM
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northvibe's Avatar
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From: Minnesota
Engine Break In

http://www.mototuneusa.com/break_in_secrets.htm

cliffnotes = hard

On the Street:
Warm the engine up completely:
Because of the wind resistance, you don't need to use higher gears like you would on a dyno machine. The main thing is to load the engine by opening the throttle hard in 2nd, 3rd and 4th gear.

Realistically, you won't be able to do full throttle runs even in 2nd gear on most bikes without exceeding 65 mph / 104 kph. The best method is to alternate between short bursts of hard acceleration and deceleration. You don't have to go over 65 mph / 104 kph to properly load the rings. Also, make sure that you're not being followed by another bike or car when you decelerate, most drivers won't expect that you'll suddenly slow down, and we don't want
anyone to get hit from behind !!

The biggest problem with breaking your engine in on the street (besides police) is if you ride the bike on the freeway (too little throttle = not enough pressure on the rings) or if you get stuck in slow city traffic. For the first 200 miles or so, get out into the country where you can vary the speed more
and run it through the gears !

Be Safe On The Street !
Watch your speed ! When you're not used to the handling of a new vehicle, you should accelerate only on the straightaways, then slow down extra early for the turns. Remember that both hard acceleration and hard engine braking (deceleration) are equally important during the break in process.
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Old Sep 24, 2009 | 09:12 PM
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thats how i did mine im 24k since the rebuild

i warmed it up, then did 2nd gear pulls adding 1psi boost at a time till i reached 15psi then i went and raced a roushcharged 427R and won

there's a vid on youtube

:shrug:

Last edited by hungryhip-ccp; Sep 24, 2009 at 09:15 PM. Reason: Automerged Doublepost
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Old Sep 24, 2009 | 09:16 PM
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From: tulsa, ok
wheres the vid link?
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Old Sep 24, 2009 | 09:27 PM
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Originally Posted by 09cobaltsc
wheres the vid link?
http://www.youtube.com/watch?v=uXEWzQO0UM0

i was not break boosting hence the jump on me

the no lift shift walked him though i had 2 people in the car as well
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Old Sep 24, 2009 | 09:41 PM
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I beat my last 2 cars in hard..no issues with the engines. girls like it hard...cars like it hard
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Old Sep 27, 2009 | 03:42 PM
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GM suggest that you do NOT engine brake during breaking in
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Old Sep 27, 2009 | 03:46 PM
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I did this as well. So have many others. No problems here 200psi across the board.
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Old Sep 27, 2009 | 08:24 PM
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Originally Posted by MaxVQ35DE
GM suggest that you do NOT engine brake during breaking in
what do they know, the cup holders suck *****
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