Underdrive pulley
- mx3autozam
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Underdrive pulley
What does everyone think about a Underdrive pulley. I know you need to trim metal from the oil pump housing but my deal is there is no harmonic balancer on it like the OEM one has. And some people wills ay it w8ill give me more problems than Its worth. Any truth to this
The one I ahve is the Unorthodox Racing pulley made from aluminum
The one I ahve is the Unorthodox Racing pulley made from aluminum
93 Mazda MX3 KLZE Turbo
- hppwdn
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I had one on my Probe and on my MX3. Never had any problems because of it. I don't have a giant stereo or anything that pulls a lot of juice at idle though.
92 MX3 Turbo ($100 junkyard KLG4) 11.904 @ 124.3mph, 14psi, DOT approved Hoosier drags, pump gas.
NSCRA 2009 FWD Drag Radial Finalist
HIN/NOPI Supershow Class Winner - Miami 2010 - Street-Sport Compact-Mazda
Links: Pretty Pic, GoFast Pic, Timeslip, Track Video
As of July 2011 the MX3 has been retired and sold.
NSCRA 2009 FWD Drag Radial Finalist
HIN/NOPI Supershow Class Winner - Miami 2010 - Street-Sport Compact-Mazda
Links: Pretty Pic, GoFast Pic, Timeslip, Track Video
As of July 2011 the MX3 has been retired and sold.
- mx3autozam
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- babyblueMX3
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yup no problem here too, been running with one since 3 yearshppwdn wrote:I had one on my Probe and on my MX3. Never had any problems because of it. I don't have a giant stereo or anything that pulls a lot of juice at idle though.
RIP 400whp ZE-T MX-3
Current car : Golf 01 GTI 1.8T (15 psi)
Current car : Golf 01 GTI 1.8T (15 psi)
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None the lighten flywheel doesnt add any hp, it allows for more bhp to be sent to the wheels from the motor. As we all know you loose somewhere around 20-30% of hp from transition from BHP to WHP. adding a lighten flywheel, underdrive pulley, stronger motor mounts (mazdaspeed, urethane filled, or solid) allows for that % to decrease. You can also remove parts to decrease that % even further, Such as AC and even an alternator (NOTE you would only remove your alternator if the car was 100% ment for drag, as your battery would die very quickly).shawno wrote:Hey i no the lightened flywheel how much hp does it add to the car.
Now according to some if you were to go with the combo of a Lighten Underdrive pulley and Lighten Flywheel you would need to have your crank balanced to the new parts, because there is a chance you could be rubbing against your bearings because of the addition of the lighter parts. For someone runnning alot of Hp this theory makes since.
As for the having problems with a lighten underdrive pulley, I've ran one and never had a problem with it.
08 Infiniti G37s 6speed (The Daily)
Stillen Cold Air Intake, Z1 Plenum Power Mod, Z1 Headers, Z1 Test Pipe, OBX (Ark) Exhaust, Up-Rev Osiris Engine Management (Tuned at Z1), 20x9" 20x10" Str Racing Concave Staggered Rims, SPC Camber kit, Tein H Techs Springs
01 Lexus Is300 (LS2 Project)
93 Mx3 SE 2.5 KLZE (sold it)
93 Mx3 GS 2.0 KFZE (killed it)
Stillen Cold Air Intake, Z1 Plenum Power Mod, Z1 Headers, Z1 Test Pipe, OBX (Ark) Exhaust, Up-Rev Osiris Engine Management (Tuned at Z1), 20x9" 20x10" Str Racing Concave Staggered Rims, SPC Camber kit, Tein H Techs Springs
01 Lexus Is300 (LS2 Project)
93 Mx3 SE 2.5 KLZE (sold it)
93 Mx3 GS 2.0 KFZE (killed it)
- kiwi_MX3
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Ok these are pic's of my new "under" drive pulley,
the water pump will be the same size 100mm in diameter
and the alternator about 60mm.
Im not dragging a power steering pump or a AC pump.
You do not need your crank balanced if you change the flywheel or
pulleys that is a myth as they are rotational parts.
The only time you need to do a check balance or balance the crank
is when you change to a heavier ROD and piston Combo.
Also the KLZE\ K8's are triple plane motors bascily two three clyinder
motors on a common crank....
My crank timming ring is the same size as standard though ive set mine
up not on a rising trigger which the standard ecu run's as im running
aftermarket.
![Image](http://www.geocities.com/evlmx3/img_0155.jpg)
![Image](http://www.geocities.com/evlmx3/img_0156.jpg)
![Image](http://www.geocities.com/evlmx3/img_0157.jpg)
excuse the large pic's works camera not mine.
the water pump will be the same size 100mm in diameter
and the alternator about 60mm.
Im not dragging a power steering pump or a AC pump.
You do not need your crank balanced if you change the flywheel or
pulleys that is a myth as they are rotational parts.
The only time you need to do a check balance or balance the crank
is when you change to a heavier ROD and piston Combo.
Also the KLZE\ K8's are triple plane motors bascily two three clyinder
motors on a common crank....
My crank timming ring is the same size as standard though ive set mine
up not on a rising trigger which the standard ecu run's as im running
aftermarket.
![Image](http://www.geocities.com/evlmx3/img_0155.jpg)
![Image](http://www.geocities.com/evlmx3/img_0156.jpg)
![Image](http://www.geocities.com/evlmx3/img_0157.jpg)
excuse the large pic's works camera not mine.
Kiwi - Native Bird Of New Zealand, semi-nocturnal, secretive bird
Flightless, though can be found flying firstclass
Poor eyesight, though can spot a good pub at 100yards.
Flightless, though can be found flying firstclass
Poor eyesight, though can spot a good pub at 100yards.
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- Nd4SpdSe
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Actually it's 110amp and they are Millenia alternators, you should be able to get them from any parts place or even a junk yard. For what I remember however is that only the earlier years had them, later I think they moved down to the 90amps like the GSmx3autozam wrote:was just talking to a mx6 guy and he said they not bad on our cars provided we use the right belts and possibl;y a JDM 120amp alternator. I might even swap over alternators when i install it.
John
1992 Mazda Mx-3 GSR - 2.5L KLZE : Award Winning Show Car & Race Car ['02-'09] (Retired)
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
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2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project