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Old 09-29-2024, 12:21 PM   #6
JSH


 
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Drives: '20 ZLE
Join Date: Jun 2020
Location: Mile High
Posts: 4,147
There's a distinct vibration today in 4th between 6000 and 7000. The only change from, say, two weeks ago when this wasn't happening is going down to the 2.75 pulley, so I'm going to replace the belt. It also does it with TC on. I've swapped upper pullies a bunch of times using this belt. At least we'll eliminate a variable.
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2020 ZL1LE A10.
LME LT4 390 short block, CID Heads, Kong E2650, FBO.
15" conversion, Nitto 555Rii or MT ET Street R or Toyo Proxes RR.
100 octane: 1045hp/1055tq.
100 octane + Alky MAF Meth (1) 10+:
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