3sx underdrive pulleys - 3000GT/Stealth International Message Center

Highboost VR-4 · 08-03-2004, 12:01 AM

does anyone have a review of any of the underdrive pulleys that 3sx sells. I am considering purchasing one but I am skeptical of the 8-16hp gains they claim. It's pretty pricy just for a pulley so some feedback would be good.

DeceptionsDream · 08-04-2004, 11:20 PM

I bout the lightened pulley and love it. 3SX rocks of course. Felt some gains, but dont expect 20 fwhp its noticable though. I bought mine when my crankshaft pulley snapped and caused all sorts of havoc. I'd prolly wait till then, unless you have your mind set on one.

Oh and btw they aren't expensive when compared to other pulleys. factory pulley is like 250 bucks (or something like that.....sorry its late)

Peace Kevan

SLguy · 08-09-2004, 09:38 AM

i would definitely get one if your doing your timing belt, cause if you pay someone to do your timing belt, they should put it on for free

as for the pulley itself, i felt a difference, not only in power, but the car reved a little quicker, and being an atx, it helped get off the line just a bit quicker too. As for the issue about whether its good for the car or not, i've had it for a year and a half to two years, and it has not given me one problem. My other buddy just put one on his RT/TT and he says he feels a difference as well. Definitely a good product

"WORR" · 08-09-2004, 07:30 PM

i had mine installed 2 weeks ago.the car feels more responsive and you dont lose battery/alternator power the way you would with ud pulley.its a bang 4 the buck.

The_Kid · 09-08-2004, 12:07 PM

Then i can exept some nice things when i get my car back on the street!! Ive installed a 3sxpulley and a rps lightweight flywheel!!

soclose3kgt · 09-15-2004, 06:59 PM

i had an unorthadox underdrive on my car, it was on there till the motor was replaced, i kind of miss it, i want it back on my car, but when it was on there it would cause my belts to sqweal while the ac was on, but supposedly the ac was overcharged, WHATEVER, i just want to put it back on, but dont want the belts to squeal, anyone ever have that problem?
-matt

ks3kgt · 10-01-2004, 06:16 PM

the only thing i would be aware of is the fact that you alternator and a/c won't be working as hard. If you had a big stereo or a spyder model i would probably shy away from underdrive pulleys. Also keep in mind if you live in a place like i do that is super humid in the summer or if you spend a lot of time stop and go driving or both that your a/c is gonna have a noticable differance. If you spend a lot of time on the highway i doubt you would be able to tell. Since the water pump is seperate and the fans are obviously electric i don't really see any harm in underdrive pulleys i just think you need to be aware of the creature comfort effects.

VR-4 0wnz j00 · 10-01-2004, 06:35 PM

How is it having the lightened flywheel and lightweight pulley? I know my rpms drop too fast already with the fidanza flywheel so Im not going to do the pulley.

Sean3S · 10-02-2004, 12:44 AM

A pulley won't really affect how fast your revs drop lol

jtvr4 · 10-11-2004, 01:34 AM

I have the standard 3sx light pully. I can hear the belts ALOT more now.

Is this normal?

08-03-2004, 12:01 AM	#1 (permalink)
Highboost VR-4 Forum Member Join Date: Apr 2004 Location: Greenville area SC Drives: 1994 VR-4 Trader Rating: (0)	3sx underdrive pulleys does anyone have a review of any of the underdrive pulleys that 3sx sells. I am considering purchasing one but I am skeptical of the 8-16hp gains they claim. It's pretty pricy just for a pulley so some feedback would be good.

08-04-2004, 11:20 PM	#2 (permalink)
DeceptionsDream Im even slow in my Dreams Join Date: Jul 2003 Location: a 3000GT junkyard SC Drives: 2-na95's--1-VR-4-91 Trader Rating: (1)	Re: 3sx underdrive pulleys I bout the lightened pulley and love it. 3SX rocks of course. Felt some gains, but dont expect 20 fwhp its noticable though. I bought mine when my crankshaft pulley snapped and caused all sorts of havoc. I'd prolly wait till then, unless you have your mind set on one. Oh and btw they aren't expensive when compared to other pulleys. factory pulley is like 250 bucks (or something like that.....sorry its late) Peace Kevan __________________

08-09-2004, 09:38 AM	#3 (permalink)
SLguy Forum Member Join Date: Jun 2002 Location: Huntsville, AL Drives: royal pain Trader Rating: (19)	Re: 3sx underdrive pulleys i would definitely get one if your doing your timing belt, cause if you pay someone to do your timing belt, they should put it on for free as for the pulley itself, i felt a difference, not only in power, but the car reved a little quicker, and being an atx, it helped get off the line just a bit quicker too. As for the issue about whether its good for the car or not, i've had it for a year and a half to two years, and it has not given me one problem. My other buddy just put one on his RT/TT and he says he feels a difference as well. Definitely a good product __________________ 94 TT Auto 8.5:1 Arias Forged Pistons, Pauter Rods, DR Stage 3 heads, EVO III 16G's, and supporting mods

08-09-2004, 07:30 PM	#4 (permalink)
"WORR" Forum Member Join Date: Nov 2003 Location: NJ Drives: 3KGT-SL Trader Rating: (1)	Re: 3sx underdrive pulleys i had mine installed 2 weeks ago.the car feels more responsive and you dont lose battery/alternator power the way you would with ud pulley.its a bang 4 the buck. __________________ ALL SHOW, NO GO..yet

09-08-2004, 12:07 PM	#5 (permalink)
The_Kid The Speedy Swed Join Date: Dec 2001 Location: Sweden Drives: 92 vr4, 02 Wrangler Trader Rating: (10)	Re: 3sx underdrive pulleys Then i can exept some nice things when i get my car back on the street!! Ive installed a 3sxpulley and a rps lightweight flywheel!! __________________ Blitz SBC i-D RPS lightweight flywheel and maxseries streetdisc! IPO fpr & filterkit and a Walbro 255 lpm fuelpump. Custom made 3" exaust with 100 cell highflowcat and a rebuilt ATR downpipe no precats Cosco Oil Catch Tank. Lightweight battery Odessy 680 Accel plugwires. Homemade Alu sparkplugcover with "THE KID" ingraved. Groundcontroll Coilovers. Silver Pro N-1 18" with falken 255-35/18. Veilside frontbumper, Veilside carbonfiber wing and Veilside sideskirt. Ohio spiderman STS, Genuine italien leather shift and e-brake boot.

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09-15-2004, 06:59 PM	#6 (permalink)
soclose3kgt winter sucks Join Date: May 2004 Location: Long Island Drives: a slow VR4 Trader Rating: (25)	Re: 3sx underdrive pulleys i had an unorthadox underdrive on my car, it was on there till the motor was replaced, i kind of miss it, i want it back on my car, but when it was on there it would cause my belts to sqweal while the ac was on, but supposedly the ac was overcharged, WHATEVER, i just want to put it back on, but dont want the belts to squeal, anyone ever have that problem? -matt __________________ 308awhp & 336awtq @1 bar

10-01-2004, 06:16 PM	#7 (permalink)
ks3kgt Forum Member Join Date: May 2004 Drives: 94 3000gt Trader Rating: (0)	Re: 3sx underdrive pulleys the only thing i would be aware of is the fact that you alternator and a/c won't be working as hard. If you had a big stereo or a spyder model i would probably shy away from underdrive pulleys. Also keep in mind if you live in a place like i do that is super humid in the summer or if you spend a lot of time stop and go driving or both that your a/c is gonna have a noticable differance. If you spend a lot of time on the highway i doubt you would be able to tell. Since the water pump is seperate and the fans are obviously electric i don't really see any harm in underdrive pulleys i just think you need to be aware of the creature comfort effects.

10-01-2004, 06:35 PM	#8 (permalink)
VR-4 0wnz j00 Meglomaniac Join Date: Dec 2003 Location: Charlotte, NC Drives: 94 3000GT Trader Rating: (2)	Re: 3sx underdrive pulleys How is it having the lightened flywheel and lightweight pulley? I know my rpms drop too fast already with the fidanza flywheel so Im not going to do the pulley. __________________ 1994 Mitsubishi 3000GT Pearl White Base Mods: Intake Southbend Rally Clutch (was Spec Stage II Clutch) Fidanza Lightweight Flywheel 3SX Test Pipe ek2 Downpipe 3SX Front and Rear Poly Motor Mounts Removed Resonator Show: Custom Sub Box by Dedona Kicker Solo Baric S12L7 - Stolen Kenwood 800W Amp - Stolen 18" Motegi FF7's Black with polished lip

10-02-2004, 12:44 AM	#9 (permalink)
Sean3S Verified Asian Join Date: Aug 2001 Location: Sugar Land, TX Drives: 94 TT Trader Rating: (36)	Re: 3sx underdrive pulleys A pulley won't really affect how fast your revs drop lol __________________ '94 RT/TT 13T's \| PTE FMIC - PPE Pipes \| 560's \| Supra FP w/ 8ga Hotwire \| MAF-T 1.37 & LT1 Blow-Through \| E-Manage Blue w/ Boomslang Harness \| HKS DLI \| Stillen Downpipe \| Gutted Rear Pre-cat \| Borla Catback \| Tial BOV \| AEM FPR & Rob Beck Adapter \| DejonTool Intake Pipes \| PWR Radiator w/ IPS Pipes \| FAL Fans \| MP Motor Mounts \| 99 Lash Adjusters \| Clevite 77 Rod & Main Bearings \| Leatherseats.com Dk. Graphite w/ Red Center Seats \| Sparco Flash 5 Black w/ Red Alcantara \| Spec Stg. 2 Clutch & 3SX Clutch Line \| 3SX Crank Pulley \| Bob's SS Shifter & All Solid Bushings \| NGK Coppers & MSD Wires \| eK2 EGR Blockoffs \| eK2 Fuel Line Loop \| PST 1 Pc. CFDS \| Volk LE37T \| Falken FK452 \| Megan Racing Coilovers \| Adj. Rear Control Arms \| Slotted Rotors w/ Hawk HPS Pads \| GReddy Profec B \| AEM UEGO WB \| GReddy PWH Boost, EGT, GReddy OP, FP, Temp \| Hybrid Logger \| McColluch 5300K HIDs \| Shaved '99 Bumper & Turns \| PRM Style Hood 295.7 AWHP / 310.3 TQ @ 1 Bar - BPU @ TX04 Collecting Dust - Setrab Oil Cooler, Snow Stage 2 Meth, Brake Lines Some Day - ABS Delete, Ducting WTB - ek2 Harness Cover (above the fuel rails)

10-11-2004, 01:34 AM	#10 (permalink)
jtvr4 Verified Join Date: Jun 2001 Location: Kansas Drives: you insane Trader Rating: (13)	Re: 3sx underdrive pulleys I have the standard 3sx light pully. I can hear the belts ALOT more now. Is this normal? __________________ IPS TD05 E16G AEM EMS EVERYTHING ELSE. Seriously. 506.24awhp 511.83awtq 3300 pounds. Soon to be over 650awhp. I hope!