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SVT Shelby GT500
How to break in new GT500 motor?
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<blockquote data-quote="Jimmysidecarr" data-source="post: 10647489" data-attributes="member: 11681"><p>Rings seat quicker with high cylinder pressure pushing them into the walls.</p><p>Eventually the abrasive quality of the crosshatch wears off, even though it is still there holding oil. So a small window of opportunity exists.</p><p>Because of this, it is my understanding that multiple pulls with high levels of WOT in the first 50 miles will give you a verifiable better leak down test and be a better break in than the easy break in method.</p><p>However a sustained high speed blast without periodic lifts to clean and re-oil the walls from part throttle high vacuum, can get the rings too hot.</p><p></p><p>So hit it but don't roast it.</p><p></p><p>Varying the rpms used to help break in non-roller cams, but now the part throttle high vacuum still can be helpful to clean and cool hard pressed rings in the "hard WOT in the first 50 miles beat down break in" that I prefer and used many times.</p><p></p><p>Worked great for me.:beer:</p></blockquote><p></p>
[QUOTE="Jimmysidecarr, post: 10647489, member: 11681"] Rings seat quicker with high cylinder pressure pushing them into the walls. Eventually the abrasive quality of the crosshatch wears off, even though it is still there holding oil. So a small window of opportunity exists. Because of this, it is my understanding that multiple pulls with high levels of WOT in the first 50 miles will give you a verifiable better leak down test and be a better break in than the easy break in method. However a sustained high speed blast without periodic lifts to clean and re-oil the walls from part throttle high vacuum, can get the rings too hot. So hit it but don't roast it. Varying the rpms used to help break in non-roller cams, but now the part throttle high vacuum still can be helpful to clean and cool hard pressed rings in the "hard WOT in the first 50 miles beat down break in" that I prefer and used many times. Worked great for me.:beer: [/QUOTE]
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SVT Shelby GT500
How to break in new GT500 motor?
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