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About 10 or 15hp normally. If you get them make sure it comes with an alternator pulley so it puts out enough power.
do underdrive pullys actually give you hp gains on a dyno. are they worth it to put them on.
About 10 or 15hp normally. If you get them make sure it comes with an alternator pulley so it puts out enough power.
'00 Silverado 4.8L
Cold air intake - Flowmaster Super 40 - MSD Wires - Iridium Plugs
Cat/EGR Delete - 160 T-Stat - Built Trans -Trailblazer Converter
V tune - 3.90 True Trac - 5/7 Drop - SS front end
Originally Posted by RUFFNECK
i have just an UD pulley no ALT pulley...works great imo.
i didnt notice a "seat of the pants" difference but we'll see what the track says.
08 CCSB 13.0 @ 103
.01-.02 seconds faster
GET OUT OF HERE WITH THAT RICER MATH!
Fixed for ya, usually gains of .1 -.2 tenths faster
stockish 6.0 on some dope
That you, that's what I ment. Good thing there are lots of people on here with a keen eye
GET OUT OF HERE WITH THAT RICER MATH!
any one got a link to find some under drive pullys?
airaid cai
pacesetter shorties
flowmaster super 44's
nelsons 91 tune
20's wrapped in nitto dune grappler's
hid's and a few extra goodies....
Let me google that for you
'00 Silverado 4.8L
Cold air intake - Flowmaster Super 40 - MSD Wires - Iridium Plugs
Cat/EGR Delete - 160 T-Stat - Built Trans -Trailblazer Converter
V tune - 3.90 True Trac - 5/7 Drop - SS front end
IMO, if you have increased idle speed because of a cam or such, there's really no need for the alt. pulley.
99 Silverado ECSB 4X4, LQ4, Patriot Stage 2 243's w/ 59cc chambers, TR224-112, Pacesetter LT's, Nelson tune, FLT Lvl 5, Yank 3k stall, UD pulley, CAI, Ported Throttle body, TB Bypass, 160* t-stat, E-fans, 6'' Fabtech lift, 3'' Summit body lift, 37'' ProComp XTerrains, 4.56's, Zexel Torsen T-2, 4'' Rear shackle flip (no blocks) 13.78 @ 98mph on 37's FTW!
I have never seen this before!
04 Silverado Z-71 Extended Cab
Magnaflow, plug wires, tr-55ix, Synthetics, 33.5", leveling kit, tuned, CAI, Silverstar, vette servo, cam, pacesetter.... and still not there!!!!
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