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L86 whipple question

   
Old 02-21-2018, 10:46 AM
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Default L86 whipple question
2016 CCSB Denali 4x4 6.2
Whipple with 3.75” pulley, ARH LTs catted Y and qtp electric cutout.
Currently I have the 3.75” pulley and the belt that came with the kit. Stepping down to a 3.5” and an Alky control dual nozzle system. Needing to know if a belt swap would be needed? Anyone running smaller than a 3.75? Asked whipple and they said they had done no testing with the 3.5 so didn’t know if the original belt would work.
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Old 02-21-2018, 03:28 PM
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Ate there both a spring loaded and manual adjusted pulleys?
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Old 02-21-2018, 05:25 PM
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Originally Posted by Littlefield
Ate there both a spring loaded and manual adjusted pulleys?
Correct
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Old 02-21-2018, 09:35 PM
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You would think you could get a lot of adjustability with that setup.
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Old 02-22-2018, 12:49 PM
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Originally Posted by Boosted62
2016 CCSB Denali 4x4 6.2
Whipple with 3.75” pulley, ARH LTs catted Y and qtp electric cutout.
Currently I have the 3.75” pulley and the belt that came with the kit. Stepping down to a 3.5” and an Alky control dual nozzle system. Needing to know if a belt swap would be needed? Anyone running smaller than a 3.75? Asked whipple and they said they had done no testing with the 3.5 so didn’t know if the original belt would work.
On a side note, how much boost with the 3.75 pulley and LT's?
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Old 02-22-2018, 03:00 PM
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Originally Posted by EarlH
On a side note, how much boost with the 3.75 pulley and LT's?
Only been remote tuned at this point and no gauge so I couldn’t say.

Any chance of you posting some pictures of your alky kit? Under the hood and inside the cab. Going to be installing mine hopefully this weekend. Thanks
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Old 04-05-2018, 08:14 AM
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Installed mechanical boost gauge a bit ago, so thought I’d share an answer to my own question. Truck makes 10psi with 3.75 pulley/1 7/8 longtubes.
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Old 04-27-2018, 09:28 PM
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Originally Posted by EarlH
Installed mechanical boost gauge a bit ago, so thought I’d share an answer to my own question. Truck makes 10psi with 3.75 pulley/1 7/8 longtubes.
Interesting 10LBs...please show gauge set up,thankks
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Old 04-28-2018, 07:15 AM
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Originally Posted by gonzo 6.2
Interesting 10LBs...please show gauge set up,thankks
https://www.performancetrucks.net/fo...2l-8at-551616/
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