08-14-2019, 08:42 PM | #1 |
Drives: 2015 Black Z28 Join Date: Oct 2017
Location: Louisville, Kentucky
Posts: 89
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SC snout pulley or overdrive lower pulley
SC snout pulley 2.55 or 10% overdrive lower pulley,which one makes the most power/boost? The SC 2.55 pulley install maybe out of my league to do it myself. Will I have to get a tune for either or these? The 2015 zl1 is stock except for a CAI...
Last edited by MrcamaroZ28; 08-14-2019 at 09:24 PM. |
08-14-2019, 09:50 PM | #2 |
Drives: 2014 ZL1 Join Date: Jul 2016
Location: Baltimore MD
Posts: 345
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Lower, snout is not s job for those without some experience. Even the lower isn't always easy
Need a good LS puller and knowledge of the AC belt removal etc Pretty sure you need to change some tune parameters even at 10% |
08-15-2019, 07:20 PM | #3 |
Those who need me got me
Drives: 2022 ZL1 A10 Join Date: Aug 2017
Location: Southwest, MN
Posts: 624
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there are pros and cons. The upper pulley requires more labor and removal of the snout to press on the pulley. Many people believe be doing the lower pulley you will not void the warranty of the supercharger, I personally think any modification to the S/C overdrive would risk warranty void.
here is a very good thread on this subject, specifically what you may achieve with a modest pulley increase and no tune https://www.camaro5.com/forums/showthread.php?t=257750
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08-26-2019, 02:58 PM | #4 |
Drives: 2013 Camaro ZL1 Conv. Join Date: Apr 2016
Location: La Crosse, WI
Posts: 77
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I recommend Jannetty's 75rwhp package or 125rwhp package. Ted has posted a video on you tube why he suggests the lower pulley instead of the upper. The larger lower pulley will have more surface area contact with the belt.
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