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Old 06-21-2016, 01:32 PM   #1
atiprocharger
 
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Mechanical or spring tensioner?

Hi all. Need some info from anyone that has gone this route. I have a slp supercharger, cam etc (see sig) and have belt slip. I am trying to decide if I should go with a JRE/ADM style or MTI racing tensioner. Any advice/experience is appreciated.
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Old 06-21-2016, 06:11 PM   #2
1985airborne
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I have a JRE but the Adm one has an additional pulley for more belt wrap on the crank pulley...
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Old 06-22-2016, 10:51 AM   #3
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A mechanical tensioner will require quite a bit more static tension on the belt to account for belt stretch under load, which will be much worse for your alt/PS/WP bearings than the increased tension from an upgraded spring tensioner. If you also have a long belt, especially a 6 rib, that may still not be enough static tension.
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Old 06-24-2016, 03:26 AM   #4
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Good strong spring tensioner every time for the reasons above.

With mechanical, you need to overtighten the crap out of things just to account for the fact you have a mechanical tensioner that can never compensate once the belt starts to stretch further.
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Old 11-19-2016, 05:47 PM   #5
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who makes the best heavy duty spring tensioner??
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