Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain Blew UP!

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Old Jan 16, 2006 | 10:44 AM
  #76  
spillman's Avatar
spillman
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From: Rutherfordton, NC
Originally Posted by skuzy
LOL thats funny
You think that's funny... Well just the other day I installed the jets for a 100 shot. Well aparrently a combination of not enough fuel with too much ingnition advance caused a spit back, very violent drop in rpm along with a large flame, through the intake manifold.

This melted the MAP sensor and broke the bolt on the crank pulley loose. This caused the crank pulley to slowly walk out and the belt started to fall apart.

Shortly after that the belt snapped and the belt tensioner hit the crank pulley and warped it. So now I am using a stock size crank pulley and a 15% supercharger pulley.
 
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Old Jan 16, 2006 | 11:45 AM
  #77  
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From: Ohio
Originally Posted by spillman
The mechanic who assebled my motor commented on the offset of pin that connects the rod to the piston. He told me that where the offset was on the factory pistons was designed to give a more low end torque setup. The CP pistons are not offset and the pin is directly in the center.
Can you elaborate on this? Was a shorter connecting rod used?
 
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Old Jan 16, 2006 | 03:20 PM
  #78  
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Dr Obnxs
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From: Woodside, CA
Ouch!!!

Originally Posted by spillman
You think that's funny... Well just the other day I installed the jets for a 100 shot. Well aparrently a combination of not enough fuel with too much ingnition advance caused a spit back, very violent drop in rpm along with a large flame, through the intake manifold.

This melted the MAP sensor and broke the bolt on the crank pulley loose. This caused the crank pulley to slowly walk out and the belt started to fall apart.

Shortly after that the belt snapped and the belt tensioner hit the crank pulley and warped it. So now I am using a stock size crank pulley and a 15% supercharger pulley.
Not only does that hurt, but it sure sound expensive....

Matt
 
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Old Jan 16, 2006 | 03:44 PM
  #79  
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MINIotaple
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From: Houston
You are my new idol. I won't even put a pulley on my car for fear I'lll lose my warranty. You blow pieces of your engine as if they grew on trees. I bow down to you.
 
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Old Jan 16, 2006 | 07:20 PM
  #80  
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spillman
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From: Rutherfordton, NC
Originally Posted by krazyivan831
You are my new idol. I won't even put a pulley on my car for fear I'lll lose my warranty. You blow pieces of your engine as if they grew on trees. I bow down to you.
You gotta pay to play.
 
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Old Jan 16, 2006 | 07:22 PM
  #81  
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From: Rutherfordton, NC
Originally Posted by minimc
Can you elaborate on this? Was a shorter connecting rod used?
The piston has a different pin offset horizontally. I am using the factory rods. I believe that this changes the angle the connecting rod and the crank are at.
 
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Old Jan 16, 2006 | 07:34 PM
  #82  
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You guys crack me up
 
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