Steeda Underdrive Pulleys
#11
I just did the pullies after having an intake & tune for a couple years, and I noticed the difference. I had lowered my idle down to ~650 rpm from 750 stock a while ago. The car didn't quite handle it well; occasionally it would try to adjust down to 650 and it would keep dropping down past 500, then stutter and jump to 900. With the pullies, it's really stable. I also noticed the smoother operation; something I wasn't expecting. No real reason to do them at the same time though. Get the intake & tune first.
#12
Do UDP's do any damage? obviously if they are 'under drive' they aren't doing something as much. Which components do these UDP's go on and what is the actual effect? Will it cause any problems later on? Thanks!
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mungodrums
S550 2015-2023 Mustang
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09-28-2015 10:54 PM
tj@steeda
Steeda Autosports
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09-24-2015 09:18 PM